HomeMy WebLinkAbout20201123 UC PacketAGENDA
Utility Commission Regular Meeting
Monday, November 23, 2020
5:30 p.m.
Virtual Meeting via Zoom
1. CALL TO ORDER (5:30)
2. ADDITIONS OR CORRECTIONS TO AGENDA (5:30)
3. AUDIENCE INPUT (5:32)
4. APPROVAL OF MINUTES (5:35)
a. September 28, 2020 Meeting
5. PUBLIC HEARINGS (5:40)
6. OLD BUSINESS (5:40)
7. NEW BUSINESS (5:40)
a. MS4 General Permit Issuance
b. Shannon Pond/Watcher Pond Outlet Feasibility Study Discussion
8. EXECUTIVE DIRECTOR’S REPORT (6:15)
a. City Project Update
b. Well Pumping Report
c. Action Item / Issues list
i. MET Council Well Assessment
ii. Smart Meter Update
iii. Tour of a Water Tower
d. Set Next Meeting Agenda for December 28, 2020
9. ADJOURNMENT (6:45)
UTILITY COMMISSION
REGULAR MEETING MINUTES
September 28, 2020
CALL TO ORDER
Pursuant to due call and notice thereof the regular Utility Commission meeting of the City of Rosemount
was called toorder on September 28, 2020, at 5:36 p.m. virtually via Zoom.
Commissioner Cahn called meeting to order with Commissioner Demuth, Mayor Droste, City
Administrator Martin, Finance Director May, Public Works Director/City Engineer Erickson, Public Works
Coordinator Sisneros and Recording Secretary Paque. Commissioner Rome was absent.
ADDITIONS OR CORRECTIONS TO AGENDA
None
AUDIENCE INPUT
None
APPROVAL OF MINUTES
Motion by Demuth Second by Cahn
Motion to approve the minutes of the August 24, 2020 Utility Commission meeting.
Ayes: 2
Nays: 0. Motion carried.
PUBLIC HEARINGS
None
OLD BUSINESS
6.a. Water Efficiency & Stormwater Rebate Update
Erickson provided an update to the commission on the rebates.
The commission briefly discussed ways topromote the rebates for the upcoming fall and winter months.
NEW BUSINESS
7.a. Utility Rate Model Review
Erickson presented overviews on the utility rate models.
Water Utility Rates
The proposed changes would result in a net decrease of 2.7% to the water portion of the utility bill for
the average residential water customer.
Sewer Utility Rates
The proposed changes would result in anet decrease of 5.9% to the sewer portion of the utility bill for
the average residential water customer.
Stormwater Utility Rates
At this time, there will not be a rate increase. The current rates should be sufficient to maintain aviable
year-end balance for the next 10 years.
Street Light Utility Rates
At this time, there will not be a rate increase. The current rates should be sufficient to maintain aviable
year-end balance for the next 10 years.
Overall, the proposed changes to the rate models would result in an overall net decrease of 3.7% for the
average customer.
Motion by Cahn Second by Demuth
Motion to recommend City Council approval of the Water and Sewer Rate Changes for 2021.
Ayes: 2
Nays: 0. Motion carried.
7.b. 2021 Utility Budgets
Erickson presented anoverview of the utility budgets.
Water Utility Budget
No increase to the budget.
Sewer Utility Budget
Slight increase to accommodate updates to communication devices and new electrical/control devices at
two of the lift stations.
Storm Utility Budget
Increase of 8.4% for communication upgrades and new electrical/control cabinets at two of the lift
stations aswell asthe stormwater pond maintenance program.
Motion by Demuth Second by Cahn
Motion to recommend City Council approval of the 2021 Utility Budgets.
Ayes: 2
Nays: 0. Motion carried.
EXECUTIVE DIRECTOR’S REPORT
8.a. City Project Update
Public Works Director/City Engineer Erickson provided the Commission with a memo regarding ongoing
projects.
Commissioner Cahn questioned whether the city will be doing any pumping on ponds other than Shannon
Pond. Erickson confirmed that staff has been looking atother ponds aswell but has to look into easements
for piping.
8.b. Well Pumping Report
Public Works Director/City Engineer Erickson presented the current well pumping records.
8.c. Action Item / Issues List
i. MET Council Well Assessment
ii. Smart Meter Update
iii. Tour of a Water Tower
Erickson asked the commissioners if there was a timeframe in mind that would work best for their
schedules. Tour will most likely take place at the Connemara Tower behind Fire Station 2.
iv. Five Year Pond Maintenance Plan
Further updates on these items will beprovided at the October Utility Commission meeting.
8.d. Set Meeting Agenda for October 26, 2020
Commissioner Demuth requested to see the highest water users and splash pad water use reports.
ADJOURNMENT
Commissioner Cahn adjourned the meeting at 7:00 p.m.
Respectfully submitted,
Jessie Paque
Recording Secretary
EXECUTIVE SUMMARY
Utility Commission Meeting: November 23, 2020
AGENDA SECTION: AGENDA ITEM: MS4 General Permit Issuance New Business
PREPARED BY: Jane Byron, Stormwater Specialist AGENDA NO. 7.a.
ATTACHMENTS: 2020 MS4 General Permit with APPROVED BY: BLEhighlightedchanges
RECOMMENDED ACTION: Discussion.
DISCUSSION:
The City of Rosemount stormwater system is permitted under the Minnesota Municipal Separate Storm
Sewer System (MS4) General Permit administered by the Minnesota Pollution Control Agency (MPCA).
Cities, other types ofgovernment entities, and institutions that are ofa certain size or that are within
urbanized areas and that own/operate separate storm sewer systems (i.e. not combined with sanitary
systems) are required to have coverage under the MS4 Permit. The MS4 Permit requires that the City
develop and implement a Storm Water Pollution Prevention Program (SWPPP) to minimize the impacts
of City operations on water quality within the contributing area to the stormwater system and lays out the
minimum measures/standards the City must incorporate into its SWPPP. The MPCA reissues the MS4
Permit periodically, about every 5-8 years. During reissuance, updates are made to the permit and often
new requirements are added.
The latest reissuance ofthe MS4 Permit went into effect on November 16, 2020. During discussion, staff
will highlight some of the more significant changes to the permit. Below is the timeline laid out for the
City to bring its program into compliance:
SWPPP Document due toMPCA byApril 15, 2021
MPCA review of SWPPP Document.
30-day public notice of SWPPP Document by MPCA following MPCA approval of the SWPPP
Document
MPCA extends permit coverage tothe City following public notice
The City has 12 months following extension of permit coverage to update the SWPPP and
program elements to bein compliance with new requirements within the 2020 MS4 General
Permit.
SUMMARY:
Discussion only.
C:\\Users\\jab\\AppData\\Local\\Temp\\7.a. MS4 General Permit Issuance_623342\\7.a. MS4 General Permit Issuance.docx
wq-strm4-94a
AUTHORIZATION TO DISCHARGE STORMWATER
ASSOCIATED WITH SMALL MUNICIPAL SEPARATE STORM SEWER SYSTEMS
UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)/
STATE DISPOSAL SYSTEM (SDS) PROGRAM
MNR040000
Permittee: Multiple
General Permit name: Small Municipal Separate Storm Sewer Systems General Permit
Issuance date: November 16, 2020
Expiration date: November 15, 2025
The state of Minnesota, on behalf of its citizens through the Minnesota Pollution Control Agency (MPCA), authorizes the
Permittee to operate a small municipal separate storm sewer system (MS4) and to discharge from the small MS4 to
receiving waters, in accordance with the requirements of the General Permit.
The goal of the General Permit is to reduce pollutant levels in point source discharges and protect water quality in
accordance with the U.S. Clean Water Act, Minnesota statutes and rules, and federal laws and regulations.
The General Permit is effective on the issuance date identified above. The General Permit expires at midnight on the
expiration date identified above.
Signature: Dana A. Vanderbosch for the Minnesota Pollution Control Agency
This document has been electronically signed.
Dana A. Vanderbosch
Division Director
Municipal Division
If you have questions about the General Permit, including specific permit requirements, permit reporting, or permit
compliance status, please contact the MPCA at:
Municipal Stormwater Program
Minnesota Pollution Control Agency
520 Lafayette Road North
St. Paul, Minnesota 55155-4194
Telephone: 651-296-6300 or toll free in Minnesota: 800-657-3864
Table of Contents
Page
1.1 Eligibility .................................................................................................................................................................... 3
2.1 Authorized Stormwater Discharges .......................................................................................................................... 3
3.1 Authorized Non-Stormwater Discharges .................................................................................................................. 3
4.1 Limitations on Authorization .................................................................................................................................... 3
5.1 Permit Authorization................................................................................................................................................. 3
6.1 Transfer of Ownership or Control ............................................................................................................................. 4
7.1 Issuance of Individual Permits .................................................................................................................................. 4
8.1 Rights and Responsibilities ....................................................................................................................................... 4
9.1 Application for Reissuance ........................................................................................................................................ 4
10.1 New Permittee Applicants ........................................................................................................................................ 4
11.1 Existing Permittee Applicants ................................................................................................................................... 4
12.1 Stormwater Pollution Prevention Program (SWPPP) Document.............................................................................. 4
13.1 Stormwater Pollution Prevention Program (SWPPP) ............................................................................................... 6
14.1 Mapping .................................................................................................................................................................... 6
15.1 Minimum Control Measures (MCMs) ....................................................................................................................... 6
16.1 MCM 1: Public Education and Outreach ................................................................................................................... 6
17.1 MCM 2: Public Participation/Involvement ............................................................................................................... 7
18.1 MCM 3: Illicit Discharge Detection and Elimination ................................................................................................. 8
19.1 MCM 4: Construction Site Stormwater Runoff Control .......................................................................................... 10
20.1 MCM 5: Post-Construction Stormwater Management ........................................................................................... 12
21.1 MCM 6: Pollution Prevention/Good Housekeeping For Municipal Operations ..................................................... 15
22.1 Discharges to Impaired Waters with a USEPA-Approved TMDL that includes an Applicable WLA ........................ 17
23.1 Alum or Ferric Chloride Phosphorus Treatment Systems ....................................................................................... 18
24.1 Stormwater Pollution Prevention Program (SWPPP) Modification ........................................................................ 19
25.1 Annual Assessment, Annual Reporting, and Recordkeeping .................................................................................. 20
26.1 General Conditions ................................................................................................................................................. 20
27.1 Definitions ............................................................................................................................................................... 22
Appendix A: Alum or Ferric Chloride Phosphorus Treatment Systems .................................................................. 26
Appendix B: Schedules ............................................................................................................................................ 27
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 3 of 28
1.1 Eligibility. [Minn. R. 7090]
1.2 To be eligible for authorization to discharge stormwater under the Small Municipal Separate Storm Sewer Systems General
Permit (General Permit), the applicant must be an owner and/or operator (owner/operator) of a small Municipal Separate
Storm Sewer System (MS4) and meet one or more of the criteria requiring permit issuance as specified in Minn. R.
7090.1010. [Minn. R. 7090.1010]
2.1 Authorized Stormwater Discharges. [Minn. R. 7090]
2.2 The General Permit authorizes stormwater discharges from small MS4s as defined in 40 CFR 122.26(b)(16). [Minn. R. 7090]
3.1 Authorized Non-Stormwater Discharges. [Minn. R. 7090]
3.2 The following categories of non-stormwater discharges or flows are authorized under the General Permit to enter the
permittee's small MS4 only if the permittee does not identify them as significant contributors of pollutants (i.e., illicit
discharges), in which case the discharges or flows must be addressed in the permittee's Stormwater Pollution Prevention
Program (SWPPP): water line flushing, landscape irrigation, diverted stream flows, rising groundwaters, uncontaminated
groundwater infiltration (as defined at 40 CFR 35.2005(b)(20)), uncontaminated pumped groundwater, discharges from
potable water sources, foundation drains, air conditioning condensation, irrigation water, springs, water from crawl space
pumps, footing drains, lawn watering, individual residential car washing, flows from riparian habitats and wetlands,
dechlorinated swimming pool discharges, street wash water, and discharges or flows from firefighting activities. [Minn. R.
7090]
4.1 Limitations on Authorization. [Minn. R. 7090]
4.2 The following discharges or activities are not authorized by the General Permit:
a. non-stormwater discharges, except those authorized by the permittee in item 3.2;
b. discharges of stormwater to the small MS4 from activities requiring a separate NPDES/SDS permit. The General Permit
does not replace or satisfy any other permitting requirements;
c. the General Permit does not replace or satisfy any environmental review requirements, including those under the
Minnesota Environmental Policy Act (Minn. Stat. 116D), or the National Environmental Policy Act (42 U.S.C. 4321 et seq.);
d. the General Permit does not replace or satisfy any review requirements for endangered or threatened species, from new
or expanded discharges that adversely impact or contribute to adverse impacts on a listed endangered or threatened
species, or adversely modify a designated critical habitat;
e. the General Permit does not replace or satisfy any review requirements for historic places or archeological sites, from
new or expanded discharges which adversely affect properties listed or eligible for listing in the National Register of Historic
Places or affecting known or discovered archeological sites; and
f. discharges to prohibited outstanding resource value waters pursuant to Minn. R. 7050.0335, Subp. 3.
Only the permittee's small MS4 and the portions of the storm sewer system that are under the permittee's operational
control are authorized by the General Permit. [Minn. R. 7090]
5.1 Permit Authorization. [Minn. R. 7001]
5.2 The applicant must submit a complete application in accordance with Sections 9 through 12 in order to obtain authorization
to discharge stormwater from a small MS4 under the General Permit. [Minn. R. 7001]
5.3 The Commissioner reviews the General Permit application for completeness. After review, the Commissioner will do one of
the following:
a. if an application is determined to be incomplete, the Commissioner will notify the applicant in writing, indicate why the
application is incomplete, and request that the applicant resubmit the application; or
b. if an application is determined to be complete, the Commissioner will make a preliminary determination as to whether
coverage under the General Permit should be issued or denied in accordance with Minn. R. 7001. [Minn. R. 7001]
5.4 The Commissioner provides a public notice with the opportunity for a hearing on the preliminary determination to issue
coverage under the General Permit. [Minn. R. 7001]
5.5 Upon receipt of written notification of final approval of the application from the Commissioner, the applicant is authorized
to discharge stormwater from the small MS4 under the terms and conditions of the General Permit. [Minn. R. 7001]
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 4 of 28
6.1 Transfer of Ownership or Control. [Minn. R. 7001, Minn. R. 7090.0080]
6.2 Where the ownership or significant operational control of the small MS4 changes after the submittal of an application in
accordance with Sections 9 through 12, the new owner/operator must submit a new application in accordance with
Sections 9 through 12. [Minn. R. 7090]
7.1 Issuance of Individual Permits. [Minn. R. 7001]
7.2 The permit applicant may request an individual permit in accordance with Minn. R. 7001.0210, Subp. 6, for authorization to
discharge stormwater associated with a small MS4. [Minn. R. 7001.0210, Subp. 6]
7.3 The Commissioner may require an individual permit for the permit applicant or permittee covered by a general permit, in
accordance with Minn. R. 7001.0210, Subp. 6. [Minn. R. 7001.0210, Subp. 6]
8.1 Rights and Responsibilities. [Minn. R. 7001, Minn. R. 7090]
8.2 The Commissioner may modify the General Permit or issue other permits, in accordance with Minn. R. 7001, to include
more stringent effluent limitations or permit requirements that modify or are in addition to the Minimum Control
Measures of the General Permit, or both. These modifications may be based on the Commissioner's determination that
such modifications are needed to protect water quality. [Minn. R. 7001]
8.3 The Commissioner may designate additional small MS4s for coverage under the General Permit in accordance with Minn. R.
7090. The owner/operator of a small MS4 that is designated for coverage must comply with the permit requirements by the
dates specified in the Commissioner's determination. [Minn. R. 7090]
9.1 Application for Reissuance. [Minn. R. 7001]
9.2 If an existing permittee desires to continue permit coverage beyond the expiration date, the permittee must submit an
application for permit reissuance : Due by 180 days prior to permit expiration. [Minn. R. 7001.0040, Subp. 3]
10.1 New Permittee Applicants. [Minn. R. 7090]
10.2 To become a new permittee authorized to discharge stormwater under the General Permit, the owner/operator of a small
MS4 must submit an application, on a form provided by the Agency, in accordance with the schedule in Appendix B, Table
3, and the following requirements:
a. submit Part 1 of the permit application (includes the permit application fee); and
b. submit Part 2 of the permit application, also known as the Stormwater Pollution Prevention Program (SWPPP) document,
in accordance with Section 12. [Minn. R. 7090]
11.1 Existing Permittee Applicants. [Minn. R. 7090]
11.2 All existing permittees seeking to continue discharging stormwater associated with a small MS4 after the issuance date of
the General Permit must submit Part 2 of the permit application : Due by 150 days after permit issuance.
Existing permittees were required to submit Part 1 of the permit application prior to the expiration date (July 31, 2018) of
the Agency's small MS4 general permit No.MNR040000, effective August 1, 2013. [Minn. R. 7090]
12.1 Stormwater Pollution Prevention Program (SWPPP) Document. [Minn. R. 7090]
12.2 All applicants must submit a SWPPP Document (i.e., Part 2 of the permit application) when seeking coverage under the
General Permit. The SWPPP Document will become an enforceable part of the General Permit upon approval by the
Agency. Modifications to the SWPPP Document that are required or allowed by the General Permit (see Section 24) will also
become enforceable provisions. The applicant must submit the SWPPP Document on a form provided by the Agency. The
applicant's SWPPP Document must include items 12.3 through 12.11, as applicable. [Minn. R. 7090]
12.3 The applicant must provide a description of partnerships with another regulated small MS4(s), into which the applicant has
entered in order to satisfy one or more requirements of the General Permit. [Minn. R. 7090]
12.4 The applicant must provide a description of each program the applicant has developed and implemented to satisfy the
Minimum Control Measure (MCM) requirements, including:
a. the Best Management Practices (BMPs) the applicant has implemented for each MCM at the time of application;
b. the status of each required component of the program; and
c. name(s) of individual(s) or position titles responsible for implementing and/or coordinating each component of the
program.
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 5 of 28
If the program has not been developed at the time of application (e.g., new permittee applicants), or revised to meet new
requirements of the General Permit (e.g., existing permittee applicants); the applicant must satisfy the permit requirements
in accordance with the schedule in Appendix B, Table 2 (existing permittee applicants), or Table 3 (new permittee
applicants). [Minn. R. 7090]
12.5 The applicant must indicate whether each storm sewer system map requirement of Section 14 is satisfied at the time of
application. For each requirement of Section 14 that is not satisfied at the time of application, the applicant must satisfy the
permit requirements in accordance with the schedule in Appendix B, Table 2 (existing permittee applicants), or Table 3
new permittee applicants). [Minn. R. 7090]
12.6 The applicant must provide a description of existing regulatory mechanism(s) the applicant has developed, implemented,
and enforced to satisfy the requirements of Sections 18, 19, and 20. At a minimum, the applicant must provide the
following information:
a. the type(s) of regulatory mechanism(s) the applicant has in place at the time of application that will be used to satisfy the
requirements;
b. the status of each required component of the regulatory mechanism(s); and
c. if available, a website address to the regulatory mechanism(s).
If the regulatory mechanism(s) have not been developed at the time of application (e.g., new permittee applicants), or
revised to meet new requirements of the General Permit (e.g., existing permittee applicants); the applicant must satisfy the
permit requirements in accordance with the schedule in Appendix B, Table 2 (existing permittee applicants), or Table 3
new permittee applicants). [Minn. R. 7090]
12.7 The applicant must provide a description of existing enforcement response procedures (ERPs) the applicant has developed
and implemented that satisfy the ERP requirements of items 18.14, 19.12, and 20.19. If the applicant has not yet developed
ERPs (e.g., new permittee applicants), or existing ERPs must be updated to satisfy new requirements, the applicant must
satisfy the permit requirements in accordance with the schedule in Appendix B, Table 2 (existing permittee applicants), or
Table 3 (new permittee applicants). [Minn. R. 7090]
12.8 The applicant must submit a compliance schedule for each applicable Waste Load Allocation (WLA) not being met for
oxygen demand, nitrate, total suspended solids (TSS), and total phosphorus (TP). The applicant may develop a compliance
schedule to include multiple WLAs. The applicant's compliance schedule must include the following information:
a. proposed BMPs or progress toward implementation of BMPs to be achieved during the permit term;
b. the year each BMP is expected to be implemented;
c. a target year the applicable WLA(s) will be achieved; and
d. if the applicant has an applicable WLA for TSS or TP, a cumulative estimate of TSS and TP load reductions (in pounds) to
be achieved during the permit term and the Agency-approved method used to determine the estimate.
Agency-approved methods include "Program for Predicting Polluting Particle Passage thru Pits, Puddles, and Ponds (P8)
Urban Catchment Model", "Source Loading and Management Model for Windows (WinSLAMM)", "Minimal Impact Design
Standards (MIDS) calculator", "Minnesota Pollution Control Agency (MPCA) simple estimator tool", or any other method
that receives Agency-approval. [Minn. R. 7090]
12.9 For each applicable WLA where a reduction in pollutant loading is required for bacteria, chloride, and temperature, the
applicant must provide a description of any existing BMPs the applicant has developed and implemented to satisfy the
requirements of items 22.3 through 22.7, including:
a. the BMPs the applicant has implemented for each required component at the time of application;
b. the status of each required component; and
c. name(s) of individual(s) or position titles responsible for implementing and/or coordinating each required component.
If the required components have not been developed at the time of application (e.g., new permittee applicants), or revised
to meet new requirements of the General Permit (e.g., existing permittee applicants); the applicant must satisfy the permit
requirements in accordance with the schedule in Appendix B, Table 2 (existing permittee applicants), or Table 3 (new
permittee applicants). [Minn. R. 7090]
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 6 of 28
12.10 If the applicant is claiming to meet an applicable WLA where a reduction in pollutant loading is required for oxygen
demand, nitrate, TSS, or TP, the applicant must provide documentation to demonstrate the applicable WLA is being met. At
a minimum, the applicant must provide the following information:
a. a list of all structural stormwater BMPs implemented to achieve the applicable WLA, including the BMP type (e.g.,
constructed basin, infiltrator, filter, swale or strip, etc.), location in geographic coordinates, owner, and year implemented;
and
b. documentation using an Agency-approved method, which demonstrates the estimated reductions of oxygen demand (or
its surrogate pollutants), nitrate, TSS, or TP from BMPs meet the MS4 WLA reductions included in the TMDL report, if that
information is available (e.g., percent reduction or pounds reduced); or
c. documentation using an Agency-approved method, which demonstrates the applicant's existing load meets the WLA.
Minn. R. 7090]
12.11 For the requirements of Section 23, alum or ferric chloride phosphorus treatment systems, if applicable, the applicant must
submit the following information:
a. location of the system in geographic coordinates;
b. name(s) of the individual(s) or position titles responsible for the operation of the system;
c. information described in item 23.11, if the system is constructed at the time the applicant submits the application to the
Agency;
d. indicate if the system complies with the requirements in Section 23; and
e. if applicable, for each requirement in Section 23 that the applicant's system does not comply with at the time of
application, the applicant must bring the system into compliance in accordance with the schedule in Appendix B, Table 2
existing permittee applicants), or Table 3 (new permittee applicants). [Minn. R. 7090]
13.1 Stormwater Pollution Prevention Program (SWPPP). [Minn. R. 7090]
13.2 The permittee must develop, implement, and enforce a SWPPP designed to reduce the discharge of pollutants from the
small MS4 to the Maximum Extent Practicable (MEP) and to protect water quality. Existing permittees regulated within the
urbanized area as defined by the United States Census Bureau, the applicable urbanized area for which the permittee must
develop, implement, and enforce a SWPPP can be based on the most recent decennial census of 2010 for the duration of
the General Permit. [Minn. R. 7090]
13.3 If the permittee enters into a partnership for purposes of meeting SWPPP requirements, the permittee maintains legal
responsibility for compliance with the General Permit. [Minn. R. 7090]
13.4 Existing permittees must revise their SWPPP developed under the Agency's small MS4 general permit No.MNR040000 that
was effective August 1, 2013, to meet the requirements of the General Permit in accordance with the schedule in Appendix
B, Table 2. New permittees must develop, implement, and enforce their SWPPP in accordance with the schedule in
Appendix B, Table 3. The permittee's SWPPP must consist of Sections 14 through 23, as applicable. [Minn. R. 7090]
14.1 Mapping. [Minn. R. 7090]
14.2 New permittees must develop, and existing permittees must update, as necessary, a storm sewer system map that depicts
the following:
a. the permittee's entire MS4 as a goal, but at a minimum, all pipes 12 inches or greater in diameter, including stormwater
flow direction in those pipes;
b. outfalls, including a unique identification (ID) number assigned by the permittee, and an associated geographic
coordinates;
c. structural stormwater BMPs that are part of the permittee's MS4; and
d. all receiving waters. [Minn. R. 7090]
15.1 Minimum Control Measures (MCMs). [Minn. R. 7090.1040]
15.2 The permittee must incorporate the following six MCMs into the SWPPP. [Minn. R. 7090.1040]
16.1 MCM 1: Public Education and Outreach. [Minn. R. 7090]
16.2 New permittees must develop and implement, and existing permittees must revise their current program, as necessary, and
continue to implement, a public education program to distribute educational materials or equivalent outreach that informs
the public of the impact stormwater discharges have on waterbodies and that includes actions citizens, businesses, and
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 7 of 28
other local organizations can take to reduce the discharge of pollutants to stormwater. The permittee may use existing
materials if they are appropriate for the message the permittee chooses to deliver, or the permittee may develop its own
educational materials. The permittee may partner with other MS4 permittees, community groups, watershed management
organizations, or other groups to implement its education and outreach program. The permittee must incorporate Section
16 requirements into their program. [Minn. R. 7090]
16.3 During the permit term, the permittee must distribute educational materials or equivalent outreach focused on at least two
2) specifically selected stormwater-related issues of high priority to the permittee (e.g., specific TMDL reduction targets,
changing local business practices, promoting adoption of residential BMPs, lake improvements through lake associations,
household chemicals, yard waste, etc.). The topics must be different from those described in items 16.4 through 16.6.
Minn. R. 7090]
16.4 At least once each calendar year, the permittee must distribute educational materials or equivalent outreach focused on
illicit discharge recognition and reporting illicit discharges to the permittee. [Minn. R. 7090]
16.5 For cities and townships, at least once each calendar year, the permittee must distribute educational materials or
equivalent outreach to residents, businesses, commercial facilities, and institutions, focused on the following:
a. impacts of deicing salt use on receiving waters;
b. methods to reduce deicing salt use; and
c. proper storage of salt or other deicing materials. [Minn. R. 7090]
16.6 For cities and townships, at least once each calendar year, the permittee must distribute educational materials or
equivalent outreach focused on pet waste. The educational materials or equivalent outreach must include information on
the following:
a. impacts of pet waste on receiving waters;
b. proper management of pet waste; and
c. any existing permittee regulatory mechanism(s) for pet waste. [Minn. R. 7090]
16.7 The permittee must develop and implement an education and outreach plan that consists of the following:
a. target audience(s) (e.g., residents, businesses, commercial facilities, institutions, and local organizations; consideration
should be given to low-income residents, people of color, and non-native English speaking residents. A resource to help
identify these areas is available on the Agency's environmental justice website);
b. name or position title of responsible person(s) for overall plan implementation;
c. specific activities and schedules to reach each target audience; and
d. a description of any coordination with and/or use of stormwater education and outreach programs implemented by
other entities, if applicable. [Minn. R. 7090]
16.8 The permittee must document the following information:
a. a description of all specific stormwater-related issues identified by the permittee in item 16.3;
b. all information required under the permittee's education and outreach plan in item 16.7;
c. activities held, including dates, to reach each target audience;
d. quantities and descriptions of educational materials distributed, including dates distributed; and
e. estimated audience (e.g., number of participants, viewers, readers, listeners, etc.) for each completed education and
outreach activity. [Minn. R. 7090]
16.9 The permittee must conduct an annual assessment of the public education program to evaluate program compliance, the
status of achieving the measurable requirements in Section 16, and determine how the program might be improved.
Measurable requirements are activities that must be documented or tracked as applicable to the MCM (e.g., education and
outreach efforts, implementation of written plans, etc.). The permittee must perform the annual assessment prior to
completion of each annual report and document any modifications made to the program as a result of the annual
assessment. [Minn. R. 7090]
17.1 MCM 2: Public Participation/Involvement. [Minn. R. 7090]
17.2 New permittees must develop and implement, and existing permittees must revise their current program, as necessary, and
continue to implement, a Public Participation/Involvement program to solicit public input on the SWPPP and involve the
public in activities that improve or protect water quality. The permittee must incorporate Section 17 requirements into
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their program. [Minn. R. 7090]
17.3 Each calendar year, the permittee must provide a minimum of one (1) opportunity for the public to provide input on the
adequacy of the SWPPP. The permittee may conduct a public meeting(s) to satisfy this requirement, provided appropriate
local public notice requirements are followed and the public is given the opportunity to review and comment on the
SWPPP. [Minn. R. 7090]
17.4 The permittee must provide access to the SWPPP Document, annual reports, and other documentation that supports or
describes the SWPPP (e.g., regulatory mechanism(s), etc.) for public review, upon request. All public data requests are
subject to the Minnesota Government Data Practices Act, Minn. Stat. 13. [Minn. Stat. 13]
17.5 The permittee must consider oral and written input regarding the SWPPP submitted by the public to the permittee. [Minn.
R. 7090]
17.6 Each calendar year, the permittee must provide a minimum of one (1) public involvement activity that includes a pollution
prevention or water quality theme (e.g., rain barrel distribution event, rain garden workshop, cleanup event, storm drain
stenciling, volunteer water quality monitoring, adopt a storm drain program, household hazardous waste collection day,
etc.). [Minn. R. 7090]
17.7 The permittee must document the following information:
a. all relevant written input submitted by persons regarding the SWPPP;
b. all responses from the permittee to written input received regarding the SWPPP, including any modifications made to the
SWPPP as a result of the written input received;
c. date(s), location(s), and estimated number of participants at events held for purposes of compliance with item 17.3;
d. notices provided to the public of any events scheduled to meet item 17.3, including any electronic correspondence (e.g.,
website, e-mail distribution lists, notices, etc.); and
e. date(s), location(s), description of activities, and estimated number of participants at events held for the purpose of
compliance with item 17.6. [Minn. R. 7090]
17.8 The permittee must conduct an annual assessment of the Public Participation/Involvement program to evaluate program
compliance, the status of achieving the measurable requirements in Section 17, and determine how the program might be
improved. Measurable requirements are activities that must be documented or tracked as applicable to the MCM (e.g.,
public input and involvement opportunities, etc.). The permittee must perform the annual assessment prior to completion
of each annual report and document any modifications made to the program as a result of the annual assessment. [Minn.
R. 7090]
18.1 MCM 3: Illicit Discharge Detection and Elimination (IDDE). [Minn. R. 7090]
18.2 New permittees must develop, implement, and enforce, and existing permittees must revise their current program as
necessary, and continue to implement and enforce, a program to detect and eliminate illicit discharges into the MS4. The
permittee must incorporate Section 18 requirements into their program. [Minn. R. 7090]
18.3 The permittee must maintain a map of the permittee's MS4, as required in Section 14. [Minn. R. 7090]
18.4 To the extent allowable under state or local law, the permittee must develop, implement, and enforce a regulatory
mechanism(s) that prohibits non-stormwater discharges into the permittee's MS4, except those non-stormwater discharges
authorized in item 3.2. A regulatory mechanism(s) for the purposes of the General Permit may consist of contract language,
an ordinance, permits, standards, written policies, operational plans, legal agreements, or any other mechanism, that will
be enforced by the permittee. The regulatory mechanism(s) must also include items 18.5 and 18.6, as applicable. [Minn. R.
7090]
18.5 For cities, townships, and counties, the permittee's regulatory mechanism(s) must require owners or custodians of pets to
remove and properly dispose of feces on permittee owned land areas. [Minn. R. 7090]
18.6 For cities and townships, the permittee's regulatory mechanism(s) must require proper salt storage at commercial,
institutional, and non-NPDES permitted industrial facilities. At a minimum, the regulatory mechanism(s) must require the
following:
a. designated salt storage areas must be covered or indoors;
b. designated salt storage areas must be located on an impervious surface; and
c. implementation of practices to reduce exposure when transferring material in designated salt storage areas (e.g.,
sweeping, diversions, and/or containment). [Minn. R. 7090]
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18.7 The permittee must incorporate illicit discharge detection into all inspection and maintenance activities conducted in items
21.9, 21.10, and 21.11. Where feasible, the permittee must conduct illicit discharge inspections during dry-weather
conditions (e.g., periods of 72 or more hours of no precipitation). [Minn. R. 7090]
18.8 At least once each calendar year, the permittee must train all field staff in illicit discharge recognition (including conditions
which could cause illicit discharges), and reporting illicit discharges for further investigation. Field staff includes, but is not
limited to, police, fire department, public works, and parks staff. Training for this specific requirement may include, but is
not limited to, videos, in-person presentations, webinars, training documents, and/or emails. [Minn. R. 7090]
18.9 The permittee must ensure that individuals receive training commensurate with their responsibilities as they relate to the
permittee's IDDE program. Individuals includes, but is not limited to, individuals responsible for investigating, locating,
eliminating illicit discharges, and/or enforcement. The permittee must ensure that previously trained individuals attend a
refresher-training every three (3) calendar years following the initial training. [Minn. R. 7090]
18.10 The permittee must maintain a written or mapped inventory of priority areas the permittee identifies as having a higher
likelihood for illicit discharges. At a minimum, the permittee must evaluate the following for potential inclusion in the
inventory:
a. land uses associated with business/industrial activities;
b. areas where illicit discharges have been identified in the past; and
c. areas with storage of significant materials that could result in an illicit discharge. [Minn. R. 7090]
18.11 To the extent allowable under state or local law, the permittee must conduct additional illicit discharge inspections in areas
identified in item 18.10. [Minn. R. 7090]
18.12 The permittee must implement written procedures for investigating, locating, and eliminating the source of illicit
discharges. At a minimum, the written procedures must include:
a. a timeframe in which the permittee will investigate a reported illicit discharge;
b. use of visual inspections to detect and track the source of an illicit discharge;
c. tools available to the permittee to investigate and locate an illicit discharge (e.g., mobile cameras, collecting and
analyzing water samples, smoke testing, dye testing, etc.);
d. cleanup methods available to the permittee to remove an illicit discharge or spill; and
e. name or position title of responsible person(s) for investigating, locating, and eliminating an illicit discharge. [Minn. R.
7090]
18.13 The permittee must implement written procedures for responding to spills, including emergency response procedures to
prevent spills from entering the MS4. The written procedures must also include the immediate notification of the
Minnesota Department of Public Safety Duty Officer at 1-800-422-0798 (toll free) or 651-649-5451 (Metro area), if the
source of the illicit discharge is a spill or leak as defined in Minn. Stat. 115.061. [Minn. R. 7090]
18.14 The permittee must maintain written enforcement response procedures (ERPs) to compel compliance with the permittee's
regulatory mechanism(s) in Section 18. At a minimum, the written ERPs must include:
a. a description of enforcement tools available to the permittee and guidelines for the use of each tool;
b. timeframes to complete corrective actions; and
c. name or position title of responsible person(s) for conducting enforcement. [Minn. R. 7090]
18.15 The permittee must document the following information:
a. date(s) and location(s) of IDDE inspections conducted in accordance with items 18.7 and 18.11;
b. reports of alleged illicit discharges received, including date(s) of the report(s), and any follow-up action(s) taken by the
permittee;
c. date(s) of discovery of all illicit discharges;
d. identification of outfalls, or other areas, where illicit discharges have been discovered;
e. sources (including a description and the responsible party) of illicit discharges (if known); and
f. action(s) taken by the permittee, including date(s), to address discovered illicit discharges. [Minn. R. 7090]
18.16 For each training in item 18.8 and 18.9, the permittee must document:
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a. general subject matter covered;
b. names and departments of individuals in attendance; and
c. date of each event. [Minn. R. 7090]
18.17 The permittee must document any enforcement conducted pursuant to the ERPs in item 18.14, including verbal warnings.
At a minimum, the permittee must document the following:
a. name of the person responsible for violating the terms and conditions of the permittee's regulatory mechanism(s);
b. date(s) and location(s) of the observed violation(s);
c. description of the violation(s);
d. corrective action(s) (including completion schedule) issued by the permittee;
e. referrals to other regulatory organizations (if any); and
f. date(s) violation(s) resolved. [Minn. R. 7090]
18.18 The permittee must conduct an annual assessment of the IDDE program to evaluate program compliance, the status of
achieving the measurable requirements in Section 18, and determine how the program might be improved. Measurable
requirements are activities that must be documented or tracked as applicable to the MCM (e.g., trainings, inventory,
inspections, enforcement, etc.). The permittee must perform the annual assessment prior to completion of each annual
report and document any modifications made to the program as a result of the annual assessment. [Minn. R. 7090]
19.1 MCM 4: Construction Site Stormwater Runoff Control. [Minn. R. 7090]
19.2 New permittees must develop, implement, and enforce, and existing permittees must revise their current program, as
necessary, and continue to implement and enforce, a Construction Site Stormwater Runoff Control program. The program
must address construction activity with a land disturbance of greater than or equal to one acre, including projects less than
one acre that are part of a larger common plan of development or sale, within the permittee's jurisdiction and that
discharge to the permittee's MS4. The permittee must incorporate Section 19 requirements into their program. [Minn. R.
7090]
19.3 To the extent allowable under state or local law, the permittee must develop, implement, and enforce a regulatory
mechanism(s) that establishes requirements for erosion, sediment, and waste controls that is at least as stringent as the
Agency's most current Construction Stormwater General Permit (MNR100001), herein referred to as the CSW Permit. A
regulatory mechanism(s) for the purposes of the General Permit may consist of contract language, an ordinance, permits,
standards, written policies, operational plans, legal agreements, or any other mechanism, that will be enforced by the
permittee. [Minn. R. 7090]
19.4 When the CSW Permit is reissued, the permittee must revise their regulatory mechanism(s), if necessary, within 12 months
of the issuance date of that permit, to be at least as stringent as the requirements for erosion, sediment, and waste
controls described in the CSW Permit. [Minn. R. 7090]
19.5 The permittee's regulatory mechanism(s) must require that owners and operators of construction activity develop site
plans that must be submitted to the permittee for review and confirmation that regulatory mechanism(s) requirements
have been met, prior to the start of construction activity. The regulatory mechanism(s) must require the owners and
operators of construction activity to keep site plans up-to-date with regard to stormwater runoff controls. The regulatory
mechanism(s) must require that site plans incorporate the following erosion, sediment, and waste controls that are at least
as stringent as described in the CSW Permit:
a. erosion prevention practices;
b. sediment control practices;
c. dewatering and basin draining;
d. inspection and maintenance;
e. pollution prevention management measures;
f. temporary sediment basins; and
g. termination conditions. [Minn. R. 7090]
19.6 The permittee must implement written procedures for site plan reviews conducted by the permittee prior to the start of all
construction activity, to ensure compliance with requirements of the regulatory mechanism(s). At a minimum, the
procedures must include:
a. written notification to owners and operators proposing construction activity, including projects less than one acre that
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Permit expires: November 15, 2025 Page 11 of 28
are part of a larger common plan of development or sale, of the need to apply for and obtain coverage under the CSW
Permit; and
b. use of a written checklist, consistent with the requirements of the regulatory mechanism(s), to document the adequacy
of each site plan required in item 19.5. [Minn. R. 7090]
19.7 The permittee must implement an inspection program that includes written procedures for conducting site inspections, to
determine compliance with the permittee's regulatory mechanism(s). The inspection program must also meet the
requirements in items 19.8 and 19.9. [Minn. R. 7090]
19.8 The permittee must maintain written procedures for identifying high-priority and low-priority sites for inspection. At a
minimum, the written procedures must include:
a. a detailed explanation describing how sites will be categorized as either high-priority or low-priority;
b. a frequency at which the permittee will conduct inspections for high-priority sites;
c. a frequency at which the permittee will conduct inspections for low-priority sites; and
d. the name(s) of individual(s) or position title(s) responsible for conducting site inspections. [Minn. R. 7090]
19.9 The permittee must implement a written checklist to document each site inspection when determining compliance with the
permittee's regulatory mechanism(s). At a minimum, the checklist must include the permittee's inspection findings on the
following areas, as applicable to each site:
a. stabilization of exposed soils (including stockpiles);
b. stabilization of ditch and swale bottoms;
c. sediment control BMPs on all downgradient perimeters of the project and upgradient of buffer zones;
d. storm drain inlet protection;
e. energy dissipation at pipe outlets;
f. vehicle tracking BMPs;
g. preservation of a 50 foot natural buffer or redundant sediment controls where stormwater flows to a surface water
within 50 feet of disturbed soils;
h. owner/operator of construction activity self-inspection records;
i. containment for all liquid and solid wastes generated by washout operations (e.g., concrete, stucco, paint, form release
oils, curing compounds, and other construction materials); and
j. BMPs maintained and functional. [Minn. R. 7090]
19.10 The permittee must implement written procedures for receipt and consideration of reports of noncompliance or other
stormwater related information on construction activity submitted by the public to the permittee. [Minn. R. 7090]
19.11 The permittee must ensure that individuals receive training commensurate with their responsibilities as they relate to the
permittee's Construction Site Stormwater Runoff Control program. Individuals includes, but is not limited to, individuals
responsible for conducting site plan reviews, site inspections, and/or enforcement. The permittee must ensure that
previously trained individuals attend a refresher-training every three (3) calendar years following the initial training. [Minn.
R. 7090]
19.12 The permittee must maintain written enforcement response procedures (ERPs) to compel compliance with the permittee's
regulatory mechanism(s) in item 19.3. At a minimum, the written ERPs must include:
a. a description of enforcement tools available to the permittee and guidelines for the use of each tool; and
b. name or position title of responsible person(s) for conducting enforcement. [Minn. R. 7090]
19.13 For each site plan review conducted by the permittee, the permittee must document the following:
a. project name;
b. location;
c. total acreage to be disturbed;
d. owner and operator of the proposed construction activity;
e. proof of notification to obtain coverage under the CSW Permit, as required in item 19.6, or proof of coverage under the
CSW Permit; and
f. any stormwater related comments and supporting completed checklist, as required in item 19.6, used by the permittee to
determine project approval or denial. [Minn. R. 7090]
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19.14 For each training in item 19.11, the permittee must document:
a. general subject matter covered;
b. names and departments of individuals in attendance; and
c. date of each event. [Minn. R. 7090]
19.15 The permittee must document any enforcement conducted pursuant to the ERPs in item 19.12, including verbal warnings.
At a minimum, the permittee must document the following:
a. name of the person responsible for violating the terms and conditions of the permittee's regulatory mechanism(s);
b. date(s) and location(s) of the observed violation(s);
c. description of the violation(s);
d. corrective action(s) (including completion schedule) issued by the permittee;
e. referrals to other regulatory organizations (if any); and
f. date(s) violation(s) resolved. [Minn. R. 7090]
19.16 The permittee must conduct an annual assessment of the Construction Site Stormwater Runoff Control program to
evaluate program compliance, the status of achieving the measurable requirements in Section 19, and determine how the
program might be improved. Measurable requirements are activities that must be documented or tracked as applicable to
the MCM (e.g., inventory, trainings, site plan reviews, inspections, enforcement, etc.). The permittee must perform the
annual assessment prior to completion of each annual report and document any modifications made to the program as a
result of the annual assessment. [Minn. R. 7090]
20.1 MCM 5: Post-Construction Stormwater Management. [Minn. R. 7090]
20.2 New permittees must develop, implement, and enforce, and existing permittees must revise their current program, as
necessary, and continue to implement and enforce, a Post-Construction Stormwater Management program that prevents
or reduces water pollution after construction activity is completed. The program must address construction activity with
land disturbance of greater than or equal to one acre, including projects less than one acre that are part of a larger common
plan of development or sale, within the permittee's jurisdiction and that discharge to the permittee's MS4. The permittee
must incorporate Section 20 requirements into their program. [Minn. R. 7090]
20.3 To the extent allowable under state or local law, the permittee must develop, implement, and enforce a regulatory
mechanism(s) that incorporates items 20.4 through 20.15. A regulatory mechanism(s) for the purposes of the General
Permit may consist of contract language, an ordinance, permits, standards, written policies, operational plans, legal
agreements, or any other mechanism, that will be enforced by the permittee. [Minn. R. 7090]
20.4 The permittee's regulatory mechanism(s) must require owners of construction activity to submit site plans with post-
construction stormwater management BMPs designed with accepted engineering practices to the permittee for review and
confirmation that regulatory mechanism(s) requirements have been met, prior to start of construction activity. [Minn. R.
7090]
20.5 The permittee's regulatory mechanism(s) must require owners of construction activity to treat the water quality volume on
any project where the sum of the new impervious surface and the fully reconstructed impervious surface equals one or
more acres. [Minn. R. 7090]
20.6 For construction activity (excluding linear projects), the water quality volume must be calculated as one (1) inch times the
sum of the new and the fully reconstructed impervious surface. [Minn. R. 7090]
20.7 For linear projects, the water quality volume must be calculated as the larger of one (1) inch times the new impervious
surface or one-half (0.5) inch times the sum of the new and the fully reconstructed impervious surface. Where the entire
water quality volume cannot be treated within the existing right-of-way, a reasonable attempt to obtain additional right-of-
way, easement, or other permission to treat the stormwater during the project planning process must be made. Volume
reduction practices must be considered first, as described in item 20.8. Volume reduction practices are not required if the
practices cannot be provided cost effectively. If additional right-of-way, easements, or other permission cannot be
obtained, owners of construction activity must maximize the treatment of the water quality volume prior to discharge from
the MS4. [Minn. R. 7090]
20.8 Volume reduction practices (e.g., infiltration or other) to retain the water quality volume on-site must be considered first
when designing the permanent stormwater treatment system. The General Permit does not consider wet sedimentation
basins and filtration systems to be volume reduction practices. If the General Permit prohibits infiltration as described in
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Permit expires: November 15, 2025 Page 13 of 28
item 20.9, other volume reduction practices, a wet sedimentation basin, or filtration basin may be considered. [Minn. R.
7090]
20.9 Infiltration systems must be prohibited when the system would be constructed in areas:
a. that receive discharges from vehicle fueling and maintenance areas, regardless of the amount of new and fully
reconstructed impervious surface;
b. where high levels of contaminants in soil or groundwater may be mobilized by the infiltrating stormwater. To make this
determination, the owners and/or operators of construction activity must complete the Agency's site screening assessment
checklist, which is available in the Minnesota Stormwater Manual, or conduct their own assessment. The assessment must
be retained with the site plans;
c. where soil infiltration rates are more than 8.3 inches per hour unless soils are amended to slow the infiltration rate below
8.3 inches per hour;
d. with less than three (3) feet of separation distance from the bottom of the infiltration system to the elevation of the
seasonally saturated soils or the top of bedrock;
e. of predominately Hydrologic Soil Group D (clay) soils;
f. in an Emergency Response Area (ERA) within a Drinking Water Supply Management Area (DWSMA) as defined in Minn. R.
4720.5100, Subp. 13, classified as high or very high vulnerability as defined by the Minnesota Department of Health;
g. in an ERA within a DWSMA classified as moderate vulnerability unless the permittee performs or approves a higher level
of engineering review sufficient to provide a functioning treatment system and to prevent adverse impacts to groundwater;
h. outside of an ERA within a DWSMA classified as high or very high vulnerability unless the permittee performs or approves
a higher level of engineering review sufficient to provide a functioning treatment system and to prevent adverse impacts to
groundwater;
i. within 1,000 feet up-gradient or 100 feet down gradient of active karst features; or
j. that receive stormwater runoff from these types of entities regulated under NPDES for industrial stormwater: automobile
salvage yards; scrap recycling and waste recycling facilities; hazardous waste treatment, storage, or disposal facilities; or air
transportation facilities that conduct deicing activities.
See "higher level of engineering review" in the Minnesota Stormwater Manual for more information. [Minn. R. 7090]
20.10 For non-linear projects, where the water quality volume cannot cost effectively be treated on the site of the original
construction activity, the permittee must identify, or may require owners of the construction activity to identify, locations
where off-site treatment projects can be completed. If the entire water quality volume is not addressed on the site of the
original construction activity, the remaining water quality volume must be addressed through off-site treatment and, at a
minimum, ensure the requirements of items 20.11 through 20.14 are met. [Minn. R. 7090]
20.11 The permittee must ensure off-site treatment project areas are selected in the following order of preference:
a. locations that yield benefits to the same receiving water that receives runoff from the original construction activity;
b. locations within the same Department of Natural Resource (DNR) catchment area as the original construction activity;
c. locations in the next adjacent DNR catchment area up-stream; or
d. locations anywhere within the permittee's jurisdiction. [Minn. R. 7090]
20.12 Off-site treatment projects must involve the creation of new structural stormwater BMPs or the retrofit of existing
structural stormwater BMPs, or the use of a properly designed regional structural stormwater BMP. Routine maintenance
of structural stormwater BMPs already required by the General Permit cannot be used to meet this requirement. [Minn. R.
7090]
20.13 Off-site treatment projects must be completed no later than 24 months after the start of the original construction activity.
If the permittee determines more time is needed to complete the treatment project, the permittee must provide the
reason(s) and schedule(s) for completing the project in the annual report. [Minn. R. 7090]
20.14 If the permittee receives payment from the owner of a construction activity for off-site treatment, the permittee must
apply any such payment received to a public stormwater project, and all projects must comply with the requirements in
items 20.11 through 20.13. [Minn. R. 7090]
20.15 The permittee's regulatory mechanism(s) must include the establishment of legal mechanism(s) between the permittee and
owners of structural stormwater BMPs not owned or operated by the permittee, that have been constructed to meet the
requirements in Section 20. The legal mechanism(s) must include provisions that, at a minimum:
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a. allow the permittee to conduct inspections of structural stormwater BMPs not owned or operated by the permittee,
perform necessary maintenance, and assess costs for those structural stormwater BMPs when the permittee determines
the owner of that structural stormwater BMP has not ensured proper function;
b. are designed to preserve the permittee's right to ensure maintenance responsibility, for structural stormwater BMPs not
owned or operated by the permittee, when those responsibilities are legally transferred to another party; and
c. are designed to protect/preserve structural stormwater BMPs. If structural stormwater BMPs change, causing decreased
effectiveness, new, repaired, or improved structural stormwater BMPs must be implemented to provide equivalent
treatment to the original BMP. [Minn. R. 7090]
20.16 The permittee must maintain a written or mapped inventory of structural stormwater BMPs not owned or operated by the
permittee that meet all of the following criteria:
a. the structural stormwater BMP includes an executed legal mechanism(s) between the permittee and owners responsible
for the long-term maintenance, as required in item 20.15; and
b. the structural stormwater BMP was implemented on or after August 1, 2013. [Minn. R. 7090]
20.17 The permittee must implement written procedures for site plan reviews conducted by the permittee prior to the start of
construction activity, to ensure compliance with requirements of the permittee's regulatory mechanism(s). [Minn. R. 7090]
20.18 The permittee must ensure that individuals receive training commensurate with their responsibilities as they relate to the
permittee's Post-Construction Stormwater Management program. Individuals includes, but is not limited to, individuals
responsible for conducting site plan reviews and/or enforcement. The permittee must ensure that previously trained
individuals attend a refresher-training every three (3) calendar years following the initial training. [Minn. R. 7090]
20.19 The permittee must maintain written enforcement response procedures (ERPs) to compel compliance with the permittee's
regulatory mechanism(s) required in Section 20. At a minimum, the written ERPs must include:
a. a description of enforcement tools available to the permittee and guidelines for the use of each tool; and
b. name or position title of responsible person(s) for conducting enforcement. [Minn. R. 7090]
20.20 For each site plan review conducted by the permittee, the permittee must document the following:
a. supporting documentation used to determine compliance with Section 20 of the General Permit, including any
calculations for the permanent stormwater treatment system;
b. the water quality volume that will be treated through volume reduction practices (e.g., infiltration or other) compared to
the total water quality volume required to be treated;
c. documentation associated with off-site treatment projects authorized by the permittee, including rationale to support
the location of permanent stormwater treatment projects in accordance with items 20.10 and 20.11;
d. payments received and used in accordance with item 20.14; and
e. all legal mechanisms drafted in accordance with item 20.15, including date(s) of the agreement(s) and name(s) of all
responsible parties involved. [Minn. R. 7090]
20.21 For each training in item 20.18, the permittee must document:
a. general subject matter covered;
b. names and departments of individuals in attendance; and
c. date of each event. [Minn. R. 7090]
20.22 The permittee must document any enforcement conducted pursuant to the ERPs in item 20.19, including verbal warnings.
At a minimum, the permittee must document the following:
a. name of the person responsible for violating the terms and conditions of the permittee's regulatory mechanism(s);
b. date(s) and location(s) of the observed violation(s);
c. description of the violation(s);
d. corrective action(s) (including completion schedule) issued by the permittee;
e. referrals to other regulatory organizations (if any); and
f. date(s) violation(s) resolved. [Minn. R. 7090]
20.23 The permittee must conduct an annual assessment of the Post-Construction Stormwater Management program to evaluate
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program compliance, the status of achieving the measurable requirements in Section 20, and determine how the program
might be improved. Measurable requirements are activities that must be documented or tracked as applicable to the MCM
e.g., inventory, trainings, site plan reviews, inspections, enforcement, etc.). The permittee must perform the annual
assessment prior to completion of each annual report and document any modifications made to the program as a result of
the annual assessment. [Minn. R. 7090]
21.1 MCM 6: Pollution Prevention/Good Housekeeping For Municipal Operations. [Minn. R. 7090]
21.2 New permittees must develop and implement, and existing permittees must revise their current program, as necessary, and
continue to implement, an operations and maintenance program that prevents or reduces the discharge of pollutants to
the MS4 from permittee owned/operated facilities and operations. The permittee must incorporate Section 21
requirements into their program. [Minn. R. 7090]
21.3 The permittee must maintain a written or mapped inventory of permittee owned/operated facilities that contribute
pollutants to stormwater discharges. The permittee must implement BMPs that prevent or reduce pollutants in stormwater
discharges from all inventoried facilities. Facilities to be inventoried may include, but is not limited to:
a. composting;
b. equipment storage and maintenance;
c. hazardous waste disposal;
d. hazardous waste handling and transfer;
e. landfills;
f. solid waste handling and transfer;
g. parks;
h. pesticide storage;
i. public parking lots;
j. public golf courses;
k. public swimming pools;
l. public works yards;
m. recycling;
n. salt storage;
o. snow storage;
p. vehicle storage and maintenance (e.g., fueling and washing) yards; and
q. materials storage yards. [Minn. R. 7090]
21.4 The permittee must implement BMPs that prevent or reduce pollutants in stormwater discharges from the following
municipal operations that may contribute pollutants to stormwater discharges, where applicable:
a. waste disposal and storage, including dumpsters;
b. management of temporary and permanent stockpiles of materials such as street sweepings, snow, sand and sediment
removal piles (e.g., effective sediment controls at the base of stockpiles on the downgradient perimeter);
c. vehicle fueling, washing, and maintenance;
d. routine street and parking lot sweeping;
e. emergency response;
f. cleaning of maintenance equipment, building exteriors, dumpsters, and the disposal of associated waste and wastewater;
g. use, storage, and disposal of significant materials;
h. landscaping, park, and lawn maintenance;
i. road maintenance, including pothole repair, road shoulder maintenance, pavement marking, sealing, and repaving;
j. right-of-way maintenance, including mowing; and
k. application of herbicides, pesticides, and fertilizers. [Minn. R. 7090]
21.5 The permittee must implement the following BMPs at permittee owned/operated salt storage areas:
a. cover or store salt indoors;
b. store salt on an impervious surface; and
c. implement practices to reduce exposure when transferring material from salt storage areas (e.g., sweeping, diversions,
and/or containment). [Minn. R. 7090]
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Permit expires: November 15, 2025 Page 16 of 28
21.6 The permittee must implement a written snow and ice management policy for individuals that perform winter maintenance
activities for the permittee. The policy must establish practices and procedures for snow and ice control operations (e.g.,
plowing or other snow removal practices, sand use, and application of deicing compounds). [Minn. R. 7090]
21.7 Each calendar year, the permittee must ensure all individuals that perform winter maintenance activities for the permittee
receive training that includes:
a. the importance of protecting water quality;
b. BMPs to minimize the use of deicers (e.g., proper calibration of equipment and benefits of pretreatment, pre-wetting,
and anti-icing); and
c. tools and resources to assist in winter maintenance (e.g., deicing application rate guidelines, calibration charts, Smart
Salting Assessment Tool).
The permittee may use training materials from the Agency's Smart Salting training or other organizations to meet this
requirement. [Minn. R. 7090]
21.8 The permittee must maintain written procedures for the purpose of determining the TSS and TP treatment effectiveness of
all permittee owned/operated ponds constructed and used for the collection and treatment of stormwater. [Minn. R. 7090]
21.9 The permittee must inspect structural stormwater BMPs (excluding stormwater ponds, which are under a separate
schedule below) each calendar year to determine structural integrity, proper function, and maintenance needs unless the
permittee determines either of the following conditions apply:
a. complaints received or patterns of maintenance indicate a greater frequency is necessary; or
b. maintenance or sediment removal is not required after completion of the first two calendar year inspections; in which
case the permittee may reduce the frequency of inspections to once every two (2) calendar years. [Minn. R. 7090]
21.10 Prior to the expiration date of the General Permit, the permittee must conduct at least one inspection of all ponds and
outfalls (excluding underground outfalls) in order to determine structural integrity, proper function, and maintenance
needs. [Minn. R. 7090]
21.11 Based on inspection findings, the permittee must determine if repair, replacement, or maintenance measures are necessary
in order to ensure the structural integrity and proper function of structural stormwater BMPs and outfalls. The permittee
must complete necessary maintenance as soon as possible. If the permittee determines necessary maintenance cannot be
completed within one year of discovery, the permittee must document a schedule(s) for completing the maintenance.
Minn. R. 7090]
21.12 The permittee must implement a stormwater management training program commensurate with individual's
responsibilities as they relate to the permittee's SWPPP, including reporting and assessment activities. The permittee may
use training materials from the United States Environmental Protection Agency (USEPA), state and regional agencies, or
other organizations as appropriate to meet this requirement. The training program must:
a. address the importance of protecting water quality;
b. cover the requirements of the permit relevant to the responsibilities of the individual not already addressed in items
18.8, 18.9, 19.11, 20.18, and 21.7; and
c. include a schedule that establishes initial training for individuals, including new and/or seasonal employees, and recurring
training intervals to address changes in procedures, practices, techniques, or requirements. [Minn. R. 7090]
21.13 The permittee must document the following information associated with the operations and maintenance program:
a. date(s) and description of findings, including whether or not an illicit discharge is detected, for all inspections conducted
in accordance with items 21.9 and 21.10;
b. any adjustments to inspection frequency as authorized in item 21.9;
c. date(s) and a description of maintenance conducted as a result of inspection findings, including whether or not an illicit
discharge is detected;
d. schedule(s) for maintenance of structural stormwater BMPs and outfalls as required in item 21.11; and
e. stormwater management training events, including general subject matter covered, names and departments of
individuals in attendance, and date of each event. [Minn. R. 7090]
21.14 The permittee must document pond sediment excavation and removal activities, including:
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Permit expires: November 15, 2025 Page 17 of 28
a. a unique ID number and geographic coordinates of each stormwater pond from which sediment is removed;
b. the volume (e.g., cubic yards) of sediment removed from each stormwater pond;
c. results from any testing of sediment from each removal activity; and
d. location(s) of final disposal of sediment from each stormwater pond. [Minn. R. 7090]
21.15 The permittee must conduct an annual assessment of the operations and maintenance program to evaluate program
compliance, the status of achieving the measurable requirements in Section 21, and determine how the program might be
improved. Measurable requirements are activities that must be documented or tracked as applicable to the MCM (e.g.,
inventory, trainings, inspections, maintenance activities, etc.). The permittee must perform the annual assessment prior to
completion of each annual report and document any modifications made to the program as a result of the annual
assessment. [Minn. R. 7090]
22.1 Discharges to Impaired Waters with a USEPA-Approved TMDL that Includes an Applicable WLA. [Minn. R. 7090]
22.2 If the permittee has an applicable WLA not being met for oxygen demand, nitrate, TSS, or TP, the permittee must provide a
summary of the permittee's progress toward achieving those applicable WLAs with the annual report. The summary must
include the following information:
a. a list of all BMPs applied towards achieving applicable WLAs for oxygen demand, nitrate, TSS, and TP;
b. the implementation status of BMPs included in the compliance schedule at the time of final application submittal; and
c. an updated estimate of cumulative TSS and TP load reductions. [Minn. R. 7090]
22.3 If the permittee has an applicable WLA where a reduction in pollutant loading is required for bacteria, the permittee must
maintain a written or mapped inventory of potential areas and sources of bacteria (e.g., dense populations of waterfowl or
other bird, dog parks). [Minn. R. 7090]
22.4 If the permittee has an applicable WLA where a reduction in pollutant loading is required for bacteria, the permittee must
maintain a written plan to prioritize reduction activities to address the areas and sources identified in the inventory in item
22.3. The written plan must include BMPs the permittee will implement over the permit term, which may include, but is not
limited to:
a. water quality monitoring to determine areas of high bacteria loading;
b. installation of pet waste pick-up bags in parks and open spaces;
c. elimination of over-spray irrigation that may occur at permittee owned areas;
d. removal of organic matter via street sweeping;
e. implementation of infiltration structural stormwater BMPs; or
f. management of areas that attract dense populations of waterfowl (e.g., riparian plantings). [Minn. R. 7090]
22.5 If the permittee has an applicable WLA where a reduction in pollutant loading is required for chloride, the permittee must
document the amount of deicer applied each winter maintenance season to all permittee owned/operated surfaces. [Minn.
R. 7090]
22.6 If the permittee has an applicable WLA where a reduction in pollutant loading is required for chloride, each calendar year
the permittee must conduct an assessment of the permittee's winter maintenance operations to reduce the amount of
deicing salt applied to permittee owned/operated surfaces and determine current and future opportunities to improve
BMPs. The permittee may use the Agency's Smart Salting Assessment Tool or other available resources and methods to
complete this assessment. The permittee must document the assessment. The assessment may include, but is not limited
to:
a. operational changes such as pre-wetting, pre-treating the salt stockpile, increasing plowing prior to deicing, monitoring of
road surface temperature, etc.;
b. implementation of new or modified equipment providing pre-wetting, or other capability for minimizing salt use;
c. regular calibration of equipment;
d. optimizing mechanical removal to reduce use of deicers; or
e. designation of no salt and/or low salt zones. [Minn. R. 7090]
22.7 If the permittee has an applicable WLA where a reduction in pollutant loading is required for temperature (i.e., City of
Duluth, City of Hermantown, City of Rice Lake, City of Stillwater, MnDOT Outstate, St. Louis County, University of Minnesota
Duluth, and Lake Superior College), the permittee must maintain a written plan that identifies specific activities the
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Permit expires: November 15, 2025 Page 18 of 28
permittee will implement to reduce thermal loading during the permit term. The written plan may include, but is not
limited to:
a. implementation of infiltration BMPs such as bioinfiltration practices;
b. disconnection and/or reduction of impervious surfaces;
c. retrofitting existing structural stormwater BMPs; or
d. improvement of riparian vegetation. [Minn. R. 7090]
23.1 Alum or Ferric Chloride Phosphorus Treatment Systems. [Minn. R. 7090]
23.2 If the permittee uses an alum or ferric chloride phosphorus treatment system, the permittee must comply with Section 23
requirements. [Minn. R. 7090]
23.3 The permittee's alum or ferric chloride phosphorus treatment system must comply with the following:
a. the permittee must use the treatment system for the treatment of phosphorus in stormwater. Non-stormwater
discharges must not be treated by this system;
b. the treatment system must be contained within the conveyances and structural stormwater BMPs of the MS4. The
utilized conveyances and structural stormwater BMPs must not include any receiving waters;
c. phosphorus treatment systems utilizing chemicals other than alum or ferric chloride must receive written approval from
the Agency; and
d. in-lake phosphorus treatment activities are not authorized under the General Permit. [Minn. R. 7090]
23.4 The permittee's alum or ferric chloride phosphorus treatment system must meet the following design parameters:
a. the treatment system must be constructed in a manner that diverts the stormwater flow to be treated from the main
conveyance system;
b. a high flow bypass must be part of the inlet design; and
c. a flocculant storage/settling area must be incorporated into the design, and adequate maintenance access must be
provided (minimum of 8 feet wide) for the removal of accumulated sediment. [Minn. R. 7090]
23.5 A designated person must perform visual monitoring of the treatment system for proper performance at least once every
seven (7) days, and within 24 hours after a rainfall event greater than 2.5 inches in 24 hours. Following visual monitoring
which occurs within 24 hours after a rainfall event, the next visual monitoring must be conducted within seven (7) days
after that rainfall event. [Minn. R. 7090]
23.6 Three (3) benchmark monitoring stations must be established. Table 1 in Appendix A must be used for the parameters,
units of measure, and frequency of measurement for each station. [Minn. R. 7090]
23.7 Samples must be collected as grab samples or flow-weighted 24-hour composite samples. [Minn. R. 7090]
23.8 Each sample, excluding pH samples, must be analyzed by a laboratory certified by the Minnesota Department of Health
and/or the Agency, and:
a. sample preservation and test procedures for the analysis of pollutants must conform to 40 CFR Part 136 and Minn. R.
7041.3200;
b. detection limits for dissolved phosphorus, dissolved aluminum, and dissolved iron must be a minimum of 6 micrograms
per liter, 10 micrograms per liter, and 20 micrograms per liter, respectively; and
c. pH must be measured within 15 minutes of sample collection using calibrated and maintained equipment. [Minn. R.
7090]
23.9 In the following situations, the permittee must perform corrective action(s) and immediately notify the Minnesota
Department of Public Safety Duty Officer at 1-800-422-0798 (toll free) or 651-649-5451 (Metro area):
a. the pH of the discharged water is not within the range of 6.0 and 9.0;
b. any indications of toxicity or measurements exceeding water quality standards which could endanger human health,
public drinking water supplies, or the environment; or
c. a spill or discharge or alteration resulting in water pollution as defined in Minn. Stat. 115.01, subd. 13, of alum or ferric
chloride.
If item b is applicable, the permittee must also report the non-compliance to the Commissioner as required in item 26.11.
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Permit expires: November 15, 2025 Page 19 of 28
Minn. R. 7001.0150, Subp. 3(K), Minn. R. 7090]
23.10 If the permittee discovers indications of toxicity or measurements exceeding water quality standards that the permittee
determines does not endanger human health, public drinking water supplies, or the environment, the permittee must
report the non-compliance to the Commissioner as required in item 26.12. [Minn. R. 7001.0150, Subp. 3(L), Minn. R. 7090]
23.11 The permittee must submit the following information with the annual report. The annual report must include a month-by-
month summary of:
a. date(s) of operation;
b. chemical(s) used for treatment;
c. gallons of water treated;
d. gallons of alum or ferric chloride treatment used;
e. calculated pounds of phosphorus removed; and
f. any performance issues and the corrective action(s), including the date(s) when corrective action(s) were taken. [Minn. R.
7090]
23.12 A record of the design parameters in items 23.13 through 23.15 must be kept on-site. [Minn. R. 7090]
23.13 Site-specific jar testing conducted using typical and representative water samples in accordance with the most current
approved version of ASTM D2035. [Minn. R. 7090]
23.14 Baseline concentrations of the following parameters in the influent and receiving waters:
a. aluminum or iron; and
b. phosphorus. [Minn. R. 7090]
23.15 The following system parameters and how each was determined:
a. flocculant settling velocity;
b. minimum required retention time;
c. rate of diversion of stormwater into the system;
d. the flow rate from the discharge of the outlet structure; and
e. range of expected dosing rates. [Minn. R. 7090]
23.16 The following site-specific procedures must be developed and a copy kept on-site:
a. procedures for the installation, operation and maintenance of all pumps, generators, control systems, and other
equipment;
b. specific parameters for determining when the solids must be removed from the system and how the solids will be
handled and disposed of; and
c. procedures for cleaning up and/or containing a spill of each chemical stored on-site. [Minn. R. 7090]
24.1 Stormwater Pollution Prevention Program (SWPPP) Modification. [Minn. R. 7090]
24.2 The Commissioner may require the permittee to modify the SWPPP as needed, in accordance with the procedures of Minn.
R. 7001, and may consider the following factors:
a. discharges from the MS4 are impacting the quality of receiving waters;
b. more stringent requirements are necessary to comply with state or federal regulations; and
c. additional conditions are deemed necessary to comply with the goals and applicable requirements of the Clean Water Act
and protect water quality. [Minn. R. 7090]
24.3 Modifications that the permittee chooses to make to the SWPPP other than modifications authorized in item 24.4, must be
approved by the Commissioner in accordance with the procedures of Minn. R. 7001. All requests must be in writing, setting
forth schedules for compliance. The request must discuss alternative program modifications, assure compliance with
requirements of the permit, and meet other applicable laws. [Minn. R. 7090]
24.4 The permittee may modify the SWPPP without prior approval of the Commissioner provided the Commissioner is notified
of the modification in the annual report for the year the modification is made and the modification falls under one of the
following categories:
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Permit expires: November 15, 2025 Page 20 of 28
a. a BMP is added, and none subtracted, from the SWPPP; or
b. a less effective BMP is replaced with a more effective BMP. The alternate BMP must address the same, or similar,
concerns as the ineffective or failed BMP. [Minn. R. 7090]
25.1 Annual Assessment, Annual Reporting, and Recordkeeping. [Minn. R. 7090]
25.2 The permittee must conduct an annual assessment to evaluate compliance with the terms and conditions of the General
Permit, including the effectiveness of the components of the SWPPP and the status of achieving the measurable
requirements in the General Permit. Measurable requirements are activities that must be documented or tracked (e.g.,
education and outreach efforts, implementation of written plans, inventories, trainings, site plan reviews, inspections,
enforcement, etc.). The permittee must perform the annual assessment prior to completion of each annual report and
document any modifications made to the SWPPP as a result of the annual assessment. [Minn. R. 7090]
25.3 The permittee must submit an annual report : Due annually, by the 30th of June. The annual report must cover the portion
of the previous calendar year during which the permittee was authorized to discharge stormwater under the General
Permit. The annual report shall be submitted to the Agency, in a manner determined by the Agency, that includes but is not
limited to:
a. the status of compliance with permit terms and conditions, including an assessment of the appropriateness of BMPs
identified by the permittee and progress towards achieving the measurable requirements of each of the MCMs. The
assessment must be based on results of information collected and analyzed, including monitoring (if any), inspection
findings, and public input received during the reporting period;
b. the stormwater activities the permittee plans to undertake during the next reporting cycle;
c. a change in any identified BMPs for any of the MCMs;
d. the summary required in item 22.2 to demonstrate progress toward achieving applicable WLAs;
e. information required to be recorded or documented in Sections 13 through 24; and
f. a statement that the permittee is relying on a partnership(s) with another regulated small MS4(s) to satisfy one or more
permit requirements (if applicable), and what agreements the permittee has entered into in support of this effort. [Minn. R.
7090]
25.4 The permittee must make records, including components of the SWPPP, available to the public at reasonable times during
regular business hours (see 40 CFR 122.7 for confidentiality provision). [Minn. R. 7090]
25.5 The permittee must retain copies of the permit application, all documentation necessary to comply with SWPPP
requirements, all data and information used by the permittee to complete the application process, and any information
developed as a requirement of the General Permit or as requested by the Commissioner, for a period of at least three (3)
years beyond the date of permit expiration. This period is automatically extended during the course of an unresolved
enforcement action regarding the small MS4 or as requested by the Commissioner. [Minn. R. 7001.0080, Minn. R. 7090]
25.6 The permittee must, when requested by the Commissioner, submit within a reasonable time the information and reports
that are relevant to the control of pollution regarding the construction, modification, or operation of the facility covered by
the General Permit or regarding the conduct of the activity covered by the General Permit. [Minn. R. 7001.0150, Subp. 3(H),
Minn. R. 7090]
25.7 The permittee must use an electronic submittal process, as provided by the Agency, to submit information required by the
General Permit. If electronic submittal is not available, the permittee must use the following mailing address:
Supervisor, Municipal Stormwater Unit
Minnesota Pollution Control Agency
520 Lafayette Road North
St. Paul, Minnesota 55155-4194. [Minn. R. 7090]
26.1 General Conditions. [Minn. R. 7090]
26.2 The Agency's issuance of a permit does not release the permittee from any liability, penalty, or duty imposed by Minnesota
or federal statutes or rules or local ordinances, except the obligation to obtain the General Permit. [Minn. R. 7001.0150,
Subp. 3(A)]
26.3 The Agency's issuance of a permit does not prevent the future adoption by the Agency of pollution control rules, standards,
or orders more stringent than those now in existence and does not prevent the enforcement of these rules, standards, or
orders against the permittee. [Minn. R. 7001.0150, Subp. 3(B)]
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26.4 The General Permit does not convey a property right or an exclusive privilege. [Minn. R. 7001.0150, Subp. 3(C)]
26.5 The Agency's issuance of a permit does not obligate the Agency to enforce local laws, rules or plans beyond that authorized
by Minnesota statutes. [Minn. R. 7001.0150, Subp. 3(D)]
26.6 The permittee must perform the actions or conduct the activity authorized by the permit in accordance with the plans and
specifications approved by the Agency and in compliance with the conditions of the permit. [Minn. R. 7001.0150, Subp.
3(E)]
26.7 The permittee must at all times properly operate and maintain the facilities and systems of treatment and control and the
appurtenances related to them which are installed or used by the permittee to achieve compliance with the conditions of
the General Permit. Proper operation and maintenance includes effective performance, adequate funding, adequate
operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance
procedures. The permittee must install and maintain appropriate backup or auxiliary facilities if they are necessary to
achieve compliance with the conditions of the General Permit and, for all permits other than hazardous waste facility
permits, if these backup or auxiliary facilities are technically and economically feasible. [Minn. R. 7001.0150, Subp. 3(F)]
26.8 The permittee may not knowingly make a false or misleading statement, representation, or certification in a record, report,
plan, or other document required to be submitted to the Agency or to the Commissioner by the General Permit. The
permittee must immediately upon discovery report to the Commissioner an error or omission in these records, reports,
plans, or other documents. [Minn. R. 7001.0150, Subp. 3(G), Minn. R. 7001.1090, Subp. 1(G), Minn. R. 7001.1090, Subp.
1(H), Minn. Stat. 609.671]
26.9 When authorized by Minn. Stat. 115.04, 115B.17, subd. 4, and 116.091, and upon presentation of proper credentials, the
Agency, or an authorized employee or agent of the Agency, must be allowed by the permittee to enter at reasonable times
upon the property of the permittee to examine and copy books, papers, records, or memoranda pertaining to the activity
covered by the General Permit; and to conduct surveys and investigations, including sampling or monitoring, pertaining to
the construction, modification, or operation of the facility covered by the permit or pertaining to the activity covered by the
General Permit. [Minn. R. 7001.0150, Subp. 3(I)]
26.10 If the permittee discovers, through any means, including notification by the Agency, that noncompliance with a condition of
the General Permit has occurred, the permittee must take all reasonable steps to minimize the adverse impacts on human
health, public drinking water supplies, or the environment resulting from the noncompliance. [Minn. R. 7001.0150, Subp.
3(J)]
26.11 If the permittee discovers that noncompliance with a condition of the General Permit has occurred which could endanger
human health, public drinking water supplies, or the environment, the permittee must, within 24 hours of the discovery of
the noncompliance, orally notify the Commissioner. Within five days of the discovery of the noncompliance, the permittee
must submit to the Commissioner a written description of the noncompliance; the cause of the noncompliance; the exact
dates of the period of the noncompliance; if the noncompliance has not been corrected, the anticipated time it is expected
to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. [Minn. R.
7001.0150, Subp. 3(K)]
26.12 The permittee must report noncompliance with the General Permit not reported under item 26.11 as a part of the next
report which the permittee is required to submit under the General Permit. If no reports are required within 30 days of the
discovery of the noncompliance, the permittee must submit the information listed in item 26.11 within 30 days of the
discovery of the noncompliance. [Minn. R. 7001.0150, Subp. 3(L), Minn. R. 7090]
26.13 The permittee must give advance notice to the Commissioner as soon as possible of planned physical alterations or
additions to the permitted facility (MS4) or activity that may result in noncompliance with a Minnesota or federal pollution
control statute or rule or a condition of the General Permit. [Minn. R. 7001.0150, Subp. 3(M)]
26.14 The General Permit is not transferable to any person without the express written approval of the Agency after compliance
with the requirements of Minn. R. 7001.0190. A person to whom the permit has been transferred must comply with the
conditions of the General Permit. [Minn. R. 7001.0150, Subp. 3(N)]
26.15 The General Permit authorizes the permittee to perform the activities described in the permit under the conditions of the
General Permit. In issuing the permit, the state and Agency assume no responsibility for damage to persons, property, or
the environment caused by the activities of the permittee in the conduct of its actions, including those activities authorized,
directed, or undertaken under the permit. To the extent the state and Agency may be liable for the activities of its
employees, that liability is explicitly limited to that provided in the Tort Claims Act, Minn. Stat. 3.736. [Minn. R. 7001.0150,
Subp. 3(O)]
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Permit expires: November 15, 2025 Page 22 of 28
26.16 The General Permit incorporates by reference the applicable portions of 40 CFR 122.41 and 122.42(c) and (d), and Minn. R.
7001.1090, which are enforceable parts of the General Permit. [Minn. R. 7090]
26.17 The provisions of the General Permit are severable, and if any provision of the General Permit, or the application of any
provision of the General Permit to any circumstance, is held invalid, the application of such provision to other
circumstances and the remainder of the General Permit shall not be affected thereby. [Minn. R. 7090]
27.1 Definitions. [Minn. R. 7090]
27.2 "Active karst" means a terrain having distinctive landforms and hydrology created primarily from the dissolution of soluble
rocks within 50 feet of the land surface. [Minn. R. 7090]
27.3 "Agency" means the Minnesota Pollution Control Agency or MPCA. [Minn. Stat. 116.36, subd. 2]
27.4 "Alum or Ferric Chloride Phosphorus Treatment System" means the diversion of flowing stormwater from a MS4, removal
of phosphorus through the use a continuous feed of alum or ferric chloride additive, flocculation, and the return of the
treated stormwater back into a MS4 or receiving water. [Minn. R. 7090]
27.5 "Applicable WLA" means a Waste Load Allocation assigned to the permittee and approved by the USEPA prior to the
issuance date of the General Permit. [Minn. R. 7090]
27.6 "Best Management Practices" or "BMPs" means practices to prevent or reduce the pollution of the waters of the state,
including schedules of activities, prohibitions of practices, and other management practices, and also includes treatment
requirements, operating procedures and practices to control plant site runoff, spillage or leaks, sludge, or waste disposal or
drainage from raw material storage. [Minn. R. 7001.1020, Subp. 5]
27.7 "Commissioner" means the Commissioner of the Minnesota Pollution Control Agency or the Commissioner's designee.
Minn. Stat. 116.36, subd. 3]
27.8 "Common Plan of Development or Sale" means a contiguous area where multiple separate and distinct land disturbing
activities may be taking place at different times, on different schedules, but under one proposed plan. One plan is broadly
defined to include design, permit application, advertisement or physical demarcation indicating that land-disturbing
activities may occur. [Minn. R. 7090]
27.9 "Construction Activity" means activities including clearing, grading, and excavating, that result in land disturbance of equal
to or greater than one acre, including the disturbance of less than one acre of total land area that is part of a larger
common plan of development or sale if the larger common plan will ultimately disturb equal to or greater than one acre.
This includes a disturbance to the land that results in a change in the topography, existing soil cover, both vegetative and
nonvegetative, or the existing soil topography that may result in accelerated stormwater runoff that may lead to soil
erosion and movement of sediment. Construction activity does not include a disturbance to the land of less than five acres
for the purpose of routine maintenance performed to maintain the original line and grade, hydraulic capacity, and original
purpose of the facility. Routine maintenance does not include activities such as repairs, replacement and other types of
non-routine maintenance. Pavement rehabilitation that does not disturb the underlying soils (e.g., mill and overlay
projects) is not construction activity. [Minn. R. 7090]
27.10 "DNR Catchment Area" means the Hydrologic Unit 08 areas delineated and digitized by the Minnesota DNR. The catchment
areas are available for download at the Minnesota DNR Geospatial Commons website. DNR catchment areas may be locally
corrected, in which case the local corrections may be used. [Minn. R. 7090]
27.11 "Existing Permittee" means an owner/operator of a small MS4 that has been authorized to discharge stormwater under a
previously issued general permit for small MS4s in the state of Minnesota. [Minn. R. 7090]
27.12 "Fully reconstructed" means areas where impervious surfaces have been removed down to the underlying soils. Activities
such as structure renovation, mill and overlay projects, and other pavement rehabilitation projects that do not expose the
underlying soils beneath the structure, pavement, or activity are not considered fully reconstructed. Maintenance activities
such as catch basin repair/replacement, utility repair/replacement, pipe repair/replacement, lighting, and pedestrian ramp
improvements are not considered fully reconstructed. [Minn. R. 7090]
27.13 "General permit" means a permit issued under Minn. R. 7001.0210 to a category of permittees whose operations,
emissions, activities, discharges, or facilities are the same or substantially similar. [Minn. R. 7001.0010, Subp. 4]
27.14 "Geographic Coordinates" means the point location of a stormwater feature expressed by X, Y coordinates of a standard
Cartesian coordinate system (i.e. latitude/longitude) that can be readily converted to Universal Transverse Mercator (UTM),
Zone 15N in the NAD83 datum. For polygon features, the geographic coordinates will typically define the approximate
center of a stormwater feature. [Minn. R. 7090]
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Permit expires: November 15, 2025 Page 23 of 28
27.15 "High Flow Bypass" means a function of an inlet device that allows a certain flow of water through, but diverts any higher
flows away. High flow bypasses are generally used for BMPs that can only treat a designed amount of flow and that would
be negatively affected by higher flows. [Minn. R. 7090]
27.16 "Illicit Discharge" means any discharge to a municipal separate storm sewer that is not composed entirely of stormwater
except discharges pursuant to a NPDES permit (other than the NPDES permit for discharges from the municipal separate
storm sewer) and discharges resulting from firefighting activities. [40 CFR 122.26(b)(2)]
27.17 "Impaired Water" means waters identified as impaired by the Agency, and approved by the USEPA, pursuant to section
303(d) of the Clean Water Act (33 U.S.C. 303(d)). [Minn. R. 7090]
27.18 "Linear project" means construction of new or fully reconstructed roads, trails, sidewalks, or rail lines that are not part of a
common plan of development or sale. For example, roads being constructed concurrently with a new residential
development are not considered linear projects because they are part of a common plan of development or sale. [Minn. R.
7090]
27.19 "Maximum Extent Practicable" or "MEP" means the statutory standard (33 U.S.C. 1342(p)(3)(B)(iii)) that establishes the
level of pollutant reductions that an owner or operator of regulated MS4s must achieve. The USEPA has intentionally not
provided a precise definition of MEP to allow maximum flexibility in MS4 permitting. The pollutant reductions that
represent MEP may be different for each small MS4, given the unique local hydrologic and geologic concerns that may exist
and the differing possible pollutant control strategies. Therefore, each permittee will determine appropriate BMPs to
satisfy each of the six Minimum Control Measures (MCMs) through an evaluative process. The USEPA envisions application
of the MEP standard as an iterative process. [Minn. R. 7090]
27.20 "Municipal separate storm sewer system" or "MS4" means a conveyance or system of conveyances including roads with
drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains:
a. owned or operated by a state, city, town, county, district, association, or other public body, created by or pursuant to
state law, having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special
districts under state law such as a sewer district, flood control district, or drainage district or similar entity, or an Indian
tribe or an authorized Indian tribe organization, or a designated and approved management Agency under section 208 of
the federal Clean Water Act, United States Code, title 33, section 1288, that discharges into waters of the state;
b. designed or used for collecting or conveying stormwater;
c. that is not a combined sewer; and
d. that is not part of a publicly owned treatment works as defined in 40 CFR 122.2.
Municipal separate storm sewer systems do not include separate storm sewers in very discrete areas, such as individual
buildings. [Minn. R. 7090.0080, Subp. 8]
27.21 "New Permittee" means an owner/operator of a small MS4 that has not been authorized to discharge stormwater under a
previously issued General Stormwater Permit for small MS4s in the state of Minnesota and that applies for, and obtains
coverage under the General Permit. [Minn. R. 7090]
27.22 "Non-Stormwater Discharge" means any discharge not composed entirely of stormwater. [Minn. R. 7090]
27.23 "Operator" means the person with primary operational control and legal responsibility for the MS4. [Minn. R. 7090.0080,
Subp. 10]
27.24 "Outfall" means the point source where a MS4 discharges to a receiving water, or the stormwater discharge permanently
leaves the permittee's MS4. It does not include diffuse runoff or conveyances that connect segments of the same stream or
water systems (e.g., when a conveyance temporarily leaves an MS4 at a road crossing). [Minn. R. 7090]
27.25 "Owner" means the person that owns the MS4. [Minn. R. 7090.0080, Subp. 11]
27.26 "Permittee" means a person or persons, that signs the permit application submitted to the Agency and is responsible for
compliance with the terms and conditions of the General Permit. [Minn. R. 7090]
27.27 "Person" means the state or any Agency or institution thereof, any municipality, governmental subdivision, public or private
corporation, individual, partnership, or other entity, including, but not limited to, association, commission or any interstate
body, and includes any officer or governing or managing body of any municipality, governmental subdivision, or public or
private corporation, or other entity. [Minn. Stat. 115.01, subd. 10]
27.28 "Pipe" means a closed manmade conveyance device used to transport stormwater from location to location. The definition
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 24 of 28
of pipe does not include foundation drain pipes, irrigation pipes, land drain tile pipes, culverts, and road sub-grade drain
pipes. [Minn. R. 7090]
27.29 "Receiving Water" means any lake, river, stream or wetland that receives stormwater discharges from an MS4. [Minn. R.
7090]
27.30 "Reduce" means reduce to the Maximum Extent Practicable (MEP) unless otherwise defined in the context in which it is
used. [Minn. R. 7090]
27.31 "Seasonally Saturated Soil" means the highest seasonal elevation in the soil in a reduced chemical state because of soil
voids filled with water causing anaerobic conditions. Seasonally saturated soil is evidenced by the presence of
redoximorphic features or other information determined by scientifically established methods or empirical field
measurements. [Minn. R. 7090]
27.32 "Section" includes all item numbers of the same whole number. For example, "Section 5" of the General Permit refers to
items 5.1 through 5.5. [Minn. R. 7090]
27.33 "Significant Materials" includes, but is not limited to: raw materials, fuels, materials such as solvents, detergents, and
plastic pellets; finished materials such as metallic products; raw materials used in food processing or production; hazardous
substances designated under Section 101(14) of the Comprehensive Environmental Response, Compensation, and Liability
Act (CERCLA); any chemical the facility is required to report pursuant to Section 313 of the Emergency Planning and
Community Right-to-Know Act (EPCRA); fertilizers, pesticides, and waste products such as ashes, slag, and sludge that have
the potential to be released with stormwater discharges. When determining whether a material is significant, the physical
and chemical characteristics of the material should be considered (e.g. the material's solubility, transportability, and toxicity
characteristics) to determine the material's pollution potential. [40 CFR 122.26(b)(12)]
27.34 "Small Municipal Separate Storm Sewer System" or "small MS4", means all separate storm sewers that are:
a. Owned or operated by the United States, a state, city, town, borough, county, parish, district, association, or other public
body (created by or pursuant to state law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or
other wastes, including special districts under state law such as a sewer district, flood control district or drainage district, or
similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management
Agency under section 208 of the CWA that discharges to waters of the United States.
b. Not defined as "large" or "medium" Municipal Separate Storm Sewer Systems pursuant to 40 CFR 122.26 paragraphs
b)(4) and (b)(7) or designated under paragraph (a)(1)(v).
c. This term includes systems similar to separate storm sewer systems in municipalities, such as systems at military bases,
large hospital or prison complexes, and highways and other thoroughfares. The term does not include separate storm
sewers in very discrete areas, such as individual buildings. [Minn. R. 7090]
27.35 "Stormwater" means stormwater runoff, snow melt runoff, and surface runoff and drainage. [Minn. R. 7090.0080, Subp. 12]
27.36 "Stormwater flow direction" means the direction of predominant flow within a pipe. Flow direction can be discerned if pipe
elevations can be displayed on the storm sewer system map. [Minn. R. 7090]
27.37 "Stormwater Pollution Prevention Program" or "SWPPP" means a comprehensive program developed by the permittee to
manage and reduce the discharge of pollutants in stormwater to and from the small MS4. [Minn. R. 7090]
27.38 "Structural Stormwater BMP" means a stationary and permanent BMP that is designed, constructed, and operated to
prevent or reduce the discharge of pollutants in stormwater. [Minn. R. 7090]
27.39 "Total Maximum Daily Load" or "TMDL" means the sum of the individual Waste Load Allocations for point sources and load
allocations for nonpoint sources and natural background, as more fully defined in 40 CFR 130.2, paragraph (i). A TMDL sets
and allocates the maximum amount of a pollutant that may be introduced into a water of the state and still assure
attainment and maintenance of water quality standards. [Minn. R. 7052.0010, Subp. 42]
27.40 "Waste Load Allocation" or "WLA" means the portion of a receiving water's loading capacity that is allocated to one of its
existing or future point sources of pollution, as more fully defined in Code of Federal Regulations, title 40, section 130.2,
paragraph (h). In the absence of a TMDL approved by USEPA under 40 CFR 130.7, or an assessment and remediation plan
developed and approved according to Minn. R. 7052.0200, Subp. 1.C, a WLA is the allocation for an individual point source
that ensures that the level of water quality to be achieved by the point source is derived from and complies with all
applicable water quality standards and criteria. [Minn. R. 7052.0010, Subp. 45]
27.41 "Water pollution" means (a) the discharge of any pollutant into any waters of the state or the contamination of any waters
of the state so as to create a nuisance or render such waters unclean, or noxious, or impure so as to be actually or
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 25 of 28
potentially harmful or detrimental or injurious to public health, safety or welfare, to domestic, agricultural, commercial,
industrial, recreational or other legitimate uses, or to livestock, animals, birds, fish or other aquatic life; or (b) the alteration
made or induced by human activity of the chemical, physical, biological, or radiological integrity of waters of the state.
Minn. Stat. 115.01, subd. 13]
27.42 "Water Quality Standards" means those provisions contained in Minn. R. 7050 and 7052. [Minn. R. 7090]
27.43 "Water Quality Volume" means either:
a. for construction activity (excluding linear projects), one (1) inch of runoff from the sum of the new and fully
reconstructed impervious surfaces created by the project (calculated as an instantaneous volume); or
b. for linear projects, the greater of one (1) inch of runoff from the new impervious surface or one-half (0.5) inch of runoff
from the sum of the new and fully reconstructed impervious surfaces created by the project (calculated as an instantaneous
volume). [Minn. R. 7090]
27.44 "Waters of the State" means all streams, lakes, ponds, marshes, watercourses, waterways, wells, springs, reservoirs,
aquifers, irrigation systems, drainage systems and all other bodies or accumulations of water, surface or underground,
natural or artificial, public or private, which are contained within, flow through, or border upon the state or any portion
thereof. [Minn. Stat. 115.01, subd. 22]
27.45 "Wetlands" means those areas that are inundated or saturated by surface water or groundwater at a frequency and
duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically
adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas.
Constructed wetlands designed for wastewater treatment are not waters of the state. Wetlands must have the following
attributes:
a. a predominance of hydric soils;
b. inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support a prevalence
of hydrophytic vegetation typically adapted for life in a saturated soil condition; and
c. under normal circumstances support a prevalence of such vegetation. [Minn. R. 7050.0186, Subp. 1a.B]
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 26 of 28
Appendix A. Alum or Ferric Chloride Phosphorus Treatment Systems
Table 1:
Monitoring parameters during operation
Station Alum parameters Ferric parameters Units Frequency
Upstream-
background
Total Phosphorus
Dissolved Phosphorus
Total Aluminum
Dissolved Aluminum
pH
Flow
Total Phosphorus
Dissolved Phosphorus
Total Iron
Dissolved Iron
pH
Flow
mg/L
mg/L
mg/L
mg/L
SU
Mgd
1 x week
1 x week
1 x month
1 x week
1 x week
Daily
Alum or Ferric
Chloride Feed
Alum Ferric Gallons Daily total dosed in
gallons
Discharge from
treatment
Total Phosphorus
Dissolved Phosphorus
Total Aluminum
Dissolved Aluminum
pH
Flow
Total Phosphorus
Dissolved Phosphorus
Total Iron
Dissolved Iron
pH
Flow
mg/L
mg/L
mg/L
mg/L
SU
Mgd
1 x week
1 x week
1 x month
1 x week
1 x week
Daily
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 27 of 28
Appendix B. Schedules
Table 2:
Existing Permittees - Schedule of permit requirements
Permit requirement Schedule
Section 12. Stormwater Pollution Prevention Program (SWPPP)
Document
Submit the SWPPP Document completed in accordance with
Section 12.
Within 150 days after General Permit issuance
date.
Section 13. Stormwater Pollution Prevention Program (SWPPP)
Complete revisions to incorporate the new requirements of
Sections 14 - 23 into current SWPPP.
Within 12 months of the date General Permit
coverage is extended, unless other timelines have
been specifically established in the General Permit
and identified below.
Section 19. Construction Site Stormwater Runoff Control
Complete revisions to Construction Site Stormwater Runoff
Control program, including revisions to regulatory mechanism(s),
if necessary.
When the CSW Permit is reissued, revise regulatory
mechanism(s), if necessary, to be at least as stringent as the
requirements for erosion, sediment, and waste controls described
in the CSW Permit.
Within 12 months of the date General Permit
coverage is extended.
Within 12 months of the issuance date of the CSW
Permit (expected issuance date of the CSW Permit
is August 1, 2023).
Section 21. Pollution Prevention/Good Housekeeping for
Municipal Operations
Conduct structural stormwater best management practice (BMP)
inspections.
Conduct pond and outfall inspections.
Each calendar year.
Prior to the expiration date of the General Permit.
Section 22. Discharges to Impaired Waters with a USEPA-
Approved TMDL that includes an Applicable WLA
Submit all information required in item 22.2.
Meet requirements for applicable WLAs for bacteria, chloride,
and temperature in Section 22.
With each annual report.
Within 12 months of the date General Permit
coverage is extended.
Section 25. Annual Assessment, Annual Reporting, and
Recordkeeping
Conduct assessment of the SWPPP.
On a form provided by the Agency, submit an annual report.
Prior to completion of each annual report.
By June 30th of each calendar year.
Permit issued: November 16, 2020 MNR040000
Permit expires: November 15, 2025 Page 28 of 28
Table 3:
New Permittees - Schedule of permit requirements
Permit requirement Schedule
Section 10. New Permittee Applicants
Submit Part 1, and Part 2 of the permit application as required
by Section 12.
Within 18 months of written notification from the
Commissioner that the MS4 meets the criteria in Minn.
R. 7090.1010, subp. 1.A. or B. and General Permit coverage is
required.
Section 13. Stormwater Pollution Prevention Program (SWPPP)
Complete all requirements of Sections 14 - 23. Within 36 months of the date General Permit coverage is
extended, unless other timelines have been specifically
established in the General Permit and identified below; or
Within timelines established by the Commissioner in item 8.3.
Section 14. Mapping
Develop a storm sewer system map. Within 24 months of the date General Permit coverage is
extended.
Section 18. Illicit Discharge Detection and Elimination
Develop, implement, and enforce an Illicit Discharge Detection
and Elimination Program.
Within 12 months of the date General Permit coverage is
extended.
Section 19. Construction Site Stormwater Runoff Control
Develop, implement, and enforce a Construction Site
Stormwater Runoff Control Program.
When the CSW Permit is reissued, revise regulatory
mechanism(s), if necessary, to be at least as stringent as the
requirements for erosion, sediment, and waste controls
described in the CSW Permit.
Within 12 months of the date General Permit coverage is
extended.
Within 12 months of the issuance date of the CSW Permit
expected issuance date of the CSW Permit is August 1, 2023).
Section 20. Post-Construction Stormwater Management
Develop, implement, and enforce a Post-Construction
Stormwater Management program.
Within 24 months of the date General Permit coverage is
extended.
Section 21. Pollution Prevention/Good Housekeeping for
Municipal Operations
Conduct structural stormwater BMP inspections.
Conduct pond and outfall inspections.
Each calendar year.
Prior to the expiration date of the General Permit.
Section 22. Discharges to Impaired Waters with a USEPA-
Approved TMDL that includes an Applicable WLA
Submit all information required in item 22.2.
Meet requirements for applicable WLAs for bacteria, chloride,
and temperature in Section 22.
With each annual report.
Within 12 months of the date General Permit coverage is
extended.
Section 23. Alum or Ferric Chloride Phosphorus Treatment
Systems (if applicable)
Meet requirements for treatment systems in Section 23. Within 12 months of the date General Permit coverage is
extended.
Section 25. Annual SWPPP Assessment, Annual Reporting, and
Recordkeeping
Conduct assessment of the SWPPP.
On a form provided by the Agency, submit an annual report.
Prior to completion of each annual report.
By June 30th of each calendar year.
EXECUTIVE SUMMARY
Utility Commission Meeting: November 23, 2020
AGENDA ITEM: Shannon Pond/Watcher Pond Outlet AGENDA SECTION:
New BusinessFeasibilityStudyDiscussion
PREPARED BY: Brian Erickson, P.E., Director of Public AGENDA NO. 7.b. Works/City Engineer
ATTACHMENTS: Shannon Pond/Watcher Pond Outlet APPROVED BY: BLEFeasibilityStudy
RECOMMENDED ACTION: Discussion.
DISCUSSION:
Rosemount’sstormwater system has areas where the water reaches a dead end with no outlet. Due to the
sandy soils, infiltration at these ‘dead end’ ponds generally functions well. However, there are instances
where infiltration is insufficient to address the amount of stormwater that enters. As a result, the city has
in the past contracted for pumping to reduce the level of those ponds.
thOnepondofthesepondsisShannonPondwhichiswestofShannonParkwayandjustnorthof160
thStreet (CSAH 46). This pond is difficult to pump down because ofthe barrier created by 160 St.
Additionally, pumping to the east is difficult because of the barrier created by the railroad line
approximately 0.5miles tothe east.
In an effort toaddress this concern, staff initiated a feasibility study to explore options for installing a
permanent lift station and force main to allow for drawing down the pond if needed. WSB & Associates
explored several different options and provided some concept level cost estimates.
Selection of a preferred option will likely require discussions with the Vermillion River Watershed Joint
Powers Organization (VRWJPO), Empire township and possibly other neighboring cities. Therefore, this
initial discussion with the Utility Commission will begin to provide afoundation for future efforts. Staff
will continue to move forward with planning efforts and provide periodic updates tothe commission.
SUMMARY:
Discussion only.
C:\\Users\\jab\\AppData\\Local\\Temp\\7.b. Shannon Pond Outlet & Watcher Pond Outlet Feasibility Study Discussion_623346\\7.b. Shannon Pond Outlet & Watcher Pond Outlet Feasibility Study Disc.docx
SHANNON AND WACHTER
POND OUTLETS
FEASIBILITY STUDY
CITY OF ROSEMOUNT
2875 145TH STREET WEEST | ROSEMOUNT, MN 55068
OCTOBER 2020
Prepared for:
City of Rosemount
2875 145th Street West
Rosemount, MN 55068
WSB PROJECT NO. 015190-000
FEASIBILITY REPORT
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Title Page
SHANNON AND WACHTER POND OUTLETS FEASIBILITY STUDY
For:
THE CITY OF ROSEMOUNT, MN
OCTOBER 2020
Prepared By:
CERTIFICATION
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Certification
I hereby certify that this plan, specification, or report was prepared by me
or under my direct supervision and that I am a duly licensed professional
engineer under the laws of the State of Minnesota.
Bill Alms, PE
Date: October 19, 2020 Lic. No. 54301
TABLE OF CONTENTS
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Table of Contents
TITLE SHEET
CERTIFICATION
TABLE OF CONTENTS
I. EXECUTIVE SUMMARY ........................................................................................................................ 2
II. BACKGROUND/PROJECT NEED ......................................................................................................... 4
III. METHODOLOGY ................................................................................................................................... 5
1. Future Trunk Line to the Mississippi River .................................................................................... 5
2. Intercommunity Discharge Rate Amendment ............................................................................... 5
3. Temporary Management ............................................................................................................... 5
IV. ALTERNATIVE ANALYSIS SUMMARY ................................................................................................. 6
1. Future Trunk Line to the Mississippi River .................................................................................... 6
a. Alternative 1a – Three Lift Station (Shannon/Wachter/ Business Park Pond) .............................. 6
b. Alternative 1b – Boulder Trail Trunk Line ...................................................................................... 6
c. Alternative 1c – Connection to MCES Interceptor ........................................................................ 7
2. Intercommunity Discharge Rate Amendment ............................................................................... 8
a. Alternative 2a – Outfall to the Future UMore Pond ....................................................................... 8
b. Alternative 2b –Outfall to Vermillion River Tributary through Empire Township ........................... 8
c. Alternative 2c – Discharge to East Lake through City of Lakeville ............................................... 9
3. Temporary Management ............................................................................................................. 10
a. Alternative 3a – Wensmann Pond Diversion Structure ............................................................... 10
b. Alternative 3b – Temporary Pumping ......................................................................................... 11
4. Right-of-Way/Easements ............................................................................................................ 12
V. FINANCING .......................................................................................................................................... 13
VI. PERMITTING AND AGREEMENTS ..................................................................................................... 14
VII. RECOMMENDATION ........................................................................................................................... 15
APPENDIX A – FIGURES
APPENDIX B – COST ESTIMATES
APPENDIX C – DWSMA AND UMORE RECLAMATION PLANS
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 2
I. EXECUTIVE SUMMARY
Shannon Pond Outlet consists of providing a stormwater outlet for Shannon Pond. Shannon Pond is a
landlocked stormwater basin in southwest Rosemount just northwest of the intersection of Shannon
Parkway and 160th Street West. There are some low-lying homes which are at risk of flooding with a
large enough storm event if the pond elevation is already high from previous storm events. The City has
had to emergency dewater Shannon Pond twice in 2019 to avoid flooding adjacent properties. In
response, the City requested the Shannon Pond Outlet Feasibility Report be updated to determine the
best outlet solution for Shannon Pond and to aid in the planning of future development within the City.
The improvements additionally benefit several other upstream regional ponding areas in the vicinity of this
study.
As part of this feasibility report, the twelve (12) options presented previously were reviewed, updated, and
consolidated into eight (8) different options in this report. These eight options were evaluated for
feasibility and cost estimates were calculated for the improvements. The eight options where grouped into
three large scale categories: 1) future trunk line to the Mississippi River, 2) intercommunity discharge rate
amendment, and 3) temporary management.
The previous feasibility study recommended a series of communications steps. Updates related to these
communications are as follows:
1. Discuss cooperate agreement with MCES to allow a connection to the Empire Wastewater
Treatment Plant effluent pipe to the Mississippi River at Biscayne Ave (Alternative 1c). Recent
discussions with MCES have indicated this connection would not be allowed upstream of the old
Rosemount Wastewater Treatment plant off 140th Street, East of TH52. As a result, the
advancement of this agreement has stalled until a trunk storm sewer connection can be made to
the east of HWY 52.
2. Discuss intercommunity discharge rate amendments with VRWJPO (Alternatives 2a-2c). This
dialog was initiated in 2013 as part of the VRWJPO Plan update. VRWJPO XPSWMM Model
updates were completed in 2016 and revised intercommunity discharge rates were established
for 5 locations along Rosemount’s Boarders. Established discharge rates were not sufficient to
provide necessary flood protection for the western half of Rosemount. It is recommended that
discussions with VRWJPO are continued with the results of this feasibility to evaluate possibility
of amending intercommunity discharge rates. This discussion will provide additional refinement
to the number of options presented.
3. Discuss cooperate agreement with University of Minnesota /Dakota Aggregates to discharge
overflows into the Dry/Wet Mining Phase 3-5 Areas which is proposed to become a future lake in
the UMORE AUAR. This option is outlined as Alternative 2a in this study. If agreements can be
established with the University of Minnesota this could serve as a interim solution until a trunk
line connection can be established along Boulder Trail to the Bloomfield Development or become
a permeant amendment to the CSWMP routing and connect through the UMORE development
to tributary overflows into the Vermillion River. It is recommended that communications with the
University of Minnesota are conducted simultaneously with VRWJPO outline in item 2 above.
4. Discuss acquisition of interim/permeant ponding easements from private property owners to
facilitate the construction of Alternatives 1a or 1b. Alternative 1b is recommended given the lower
capital and O&M project cost and allows flexibility based on agreement discussions with
University of Minnesota. Some easements may be able to be acquired with development;
however urgency to provide an outlet to Shannon Pond and discharge water to a suitable
location may require advanced negations with property owners.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 3
The total estimated project cost for Alternative 1b is $10,818,648 + required land acquisition cost to be
determined with communication plans outlined above.
It is proposed that communication begin with VRWJPO and University of Minnesota immediately through
the City of Rosemount. This project is feasible, necessary, and cost effective from an engineering
standpoint.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 4
II. BACKGROUND/PROJECT NEED
Shannon Pond is a landlocked stormwater basin in southwest Rosemount just northwest of the
intersection of Shannon Parkway and 160th Street West. The pond currently receives direct drainage
from existing neighborhoods surrounding the pond totaling approximately 176 acres and upstream
stormwater from the Wensmann Pond, Hawkins Pond, Birger Pond drainage areas totaling approximately
2000 acres. Wachter Pond is another landlocked pond within the City and receives direct drainage from
783 acres upstream.
The Shannon Pond Outlet/Lift Station Feasibility Report was completed in June 2007; however, an outlet
was never constructed. In February 2016, the City worked with the Vermillion River Watershed Joint
Powers Organization (VRWJPO) to update its XPSWMM model to include the City of Rosemount. The
VRWJPO’s XPSWMM model was the basis for establishing intercommunity discharge allowances which
are monitored by the VRWJPO. The intercommunity discharge allowances for the multiple discharge
points at the Rosemount City boundary can be seen on Figure 1. The City used the VRWJPO model to
update the City wide XPSWMM model in 2018 as part of the City’s Comprehensive Stormwater
Management Plan update.
Increased rainfall within the previous couple years has increased the urgency of constructing an outlet for
Shannon Pond. The City has had to emergency dewater the pond three times in 2019 to avoid flooding
adjacent properties. Without an outlet for Shannon Pond, during or after large storm events when
Shannon Pond and tributary ponds are at their high water levels it is possible that approximately 50
structures surrounding the ponds could be impacted (Figure 2). An additional 100 structures could be
impacted from Wachter Pond being at its high water with no outlet. Due to this urgency, the City
requested the Shannon Pond Outlet Feasibility Report be updated to determine the best outlet solution
and to aid in the planning of future development within the City. The improvements additionally benefit
several other upstream regional ponding areas in the vicinity of this study.
It is estimated that for the 24-hour, 100-year event, a 15 cfs discharge rate will be required to outlet from
the basin which is far too high for infiltration, evaporation, or additional storage given the land constraints
and volume of required storage.
The Wachter Pond Drainage Study was completed in December 1993. The study noted that the
anticipated HWL from the critical 100-year event would inundate the adjacent Trunk Highway 3 (TH 3) if
no outlet were constructed. This observation was confirmed with the City’s updated XPSWMM model in
2018. The Wachter Pond Drainage Study recommended constructing a pumped outlet which would
discharge to the Business Park ponds (Pond 1990) but this outlet was never constructed. This feasibility
study uses the original Wachter Pond Drainage Study as the basis for the routing of the proposed
Wachter Pond outlet. It is estimated that a 10 cfs lift station will be required for the Wachter Pond outlet to
meet freeboard requirements with respect the adjacent homes and TH 3.
Some of the pond outlet improvement alternatives analyzed are a step towards the long-term intent of
Rosemount’s Comprehensive Stormwater Management Plan to provide a City outlet to the Mississippi
River. Two of the alternatives analyzed include ultimately discharging to the Vermillion River through
Tributary Number 5C. These alternatives and other alternatives which cross into adjacent communities
present additional permitting considerations to change the allowed intercommunity flow rate, to construct
outside of the City boundaries, and to meet water quality and temperature requirements.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 5
III. METHODOLOGY
The City’s XPSWMM model was reviewed and updated within the Shannon Pond subwatershed as well
as any tributary subwatersheds to Shannon Pond including the Birger Pond, Hawkins Pond, Wachter
Pond, and a portion of the Erickson Pond subwatersheds. As part of the 2018 updates to the model the
rainfall depths were changed to Atlas 14 conditions. The 2018 XPSWMM model and the 2016 VRWJPO
model were used for comparison and calibration. This provided a base model which was modified to
compare the different alternatives.
The alternatives analyzed in the original 2007 Shannon Pond Outlet Study were used as a starting point
for this feasibility report. Some additional alternatives were added based on discussions with City staff.
The alternatives analyzed can be broken down into three large scale categories: future trunk line to the
Mississippi River, intercommunity discharge rate amendment, and temporary management. As noted
previously the proposed routing in the original Wachter Pond Drainage Study was used as the basis for
the routing of the proposed Wachter Pond outlet in this study. The discharge volumes from Shannon
Pond and Wachter Pond will be consistent for all of the future trunk line options and are summarized
below.
Table 1 – Shannon Pond (0614) Discharge Volumes
Storm Duration
Storm
Frequency
Discharge Volume
ac-ft)
HWL
ft)
24-hour
2-year 77.2 915.5
10-year 196.7 918.0
100-year 388.9 922.3
4-day 100-year 410.1 923.6
10-day snowmelt 100-year 329.7 919.5
Table 2 – Wachter Pond (2443) Discharge Volumes
Storm Duration
Storm
Frequency
Discharge Volume
ac-ft)
HWL
ft)
24-hour
2-year 53.0 911.7
10-year 112.0 917.6
100-year 287.5 928.9
4-day 100-year 344.4 931.1
10-day snowmelt 100-year 272.8 925.1
1. Future Trunk Line to the Mississippi River
Three alternatives analyzed direct the Shannon Pond outlet east with the overall intent to take the
discharge all the way to the Mississippi River (see Future Trunk Line to the Mississippi River
Alternatives Figure). These options include combining the outlets from Shannon Pond and Wachter
Pond into one trunk line to the east.
2. Intercommunity Discharge Rate Amendment
Three alternatives were analyzed that include discharging water across the City boundary and would
require an intercommunity discharge rate amendment be agreed upon with the appropriate neighboring
City(s) and the VRWJPO (see Intercommunity Discharge Rate Amendment Alternatives Figure).
Additional agreements with neighboring communities would be required for the majority of these
alternatives.
3. Temporary Management
Two temporary management solutions were analyzed (see Temporary Management Alternatives
Figure) one of which represents an interim condition solution of continuing to emergency dewater
Shannon Pond when it presents a flooding risk to adjacent properties and discharging water south of
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 6
160th Street to the gravel mine. The other temporary management solution looked into involves
constructing a diversion structure upstream of Shannon Pond to reduce the amount of water getting to
Shannon Pond in larger storm events.
IV. ALTERNATIVE ANALYSIS SUMMARY
1. Future Trunk Line to the Mississippi River
a. Alternative 1a – Three Lift Station (Shannon/Wachter/ Business Park Pond)
The proposed improvements for Alternative 1a include constructing a 15 cfs lift station at Shannon Pond
with a combination of force main and gravity storm sewer as shown in the Alternative 1a Figure. The
pipe alignment is east from Shannon Pond on the south side of 160th Street utilizing the 160th Street right-
of-way just past the railroad crossing. At this location, the alignment turns north, following the south edge
of Canada Circle and would continue along the proposed alignment for Canada Circle until discharging
east into Pond 2274. A 10 cfs lift station would also be constructed at Wachter Pond with the force main
from Wachter Pond connecting into the gravity main trunk line from Shannon Pond directly east of
Wachter Pond.
Gravity storm sewer connections would also be made from Pond 2274 to Pond 2164 to Pond 2187. Pond
2187 would discharge to Pond 1990 (Business Park Pond) through existing storm sewer. A 26 cfs lift
station from Pond 1990 would direct water through force main within the County Highway 42 right of way
to Pond 1864.
Alternative Considerations:
Three lift stations (Shannon Pond, Wachter Pond, and Pond 1990) would be constructed and
connected into the one main trunk line
The 160th Street and Canada Circle right of way are utilized to minimize land acquisition
Land would need to be acquired from the planned Canada Circle roadway extension to Pond
2274
All lift stations will be connected to SCADA system allowing coordination with upstream and
downstream ponds
Portions of the storm sewer force main would cross Robert Trail South and would need to be
coordinated with MnDOT.
A railroad crossing north of CSAH 46 will need to be coordinated with Union Pacific Railroad.
Furthers the intent to create a City hydraulic outlet to the Mississippi River
b. Alternative 1b – Boulder Trail Trunk Line
The proposed improvements for Alternative 1b include constructing a constructing a 15 cfs lift station at
Shannon Pond with a combination of force main and gravity storm sewer as shown in the Alternative 1b
Figure. The pipe alignment is east from Shannon Pond on the south side of 160th Street utilizing the 160th
Street right-of-way just past the railroad crossing. At this location, the alignment turns north, following the
south edge of Canada Circle and would continue along the proposed alignment for Canada Circle until
discharging east into Pond 2274. A 10 cfs lift station would also be constructed at Wachter Pond with the
force main from Wachter Pond connecting into the gravity main trunk line from Shannon Pond directly
east of Wachter Pond. Pond 1990 would discharge to Pond 2187 through gravity main.
Gravity storm sewer connections would also be made from Pond 2274 to Pond 2164 to Pond 2187 and
then storm sewer would follow the future alignment for Boulder Trail through the Umore property north to
Pond 1918 and from Pond 1918 to Pond 1864.
Alternative Considerations:
Two lift stations (Shannon Pond and Wachter Pond) would be constructed and connected into the
one main trunk line
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 7
Requires the development of northern portion of UMORE mine to connect to trunk line at 1864.
The 160th Street, Boulder Trail, and Canada Circle right of way are utilized to minimize land
acquisition
Land would need to be acquired from the planned Canada Circle roadway extension to Pond
2274
All lift stations will be connected to SCADA system allowing coordination with upstream and
downstream ponds
Portions of the storm sewer would cross Robert Trail South and would need to be coordinated
with MnDOT
A railroad crossing north of CSAH 46 will need to be coordinated with Union Pacific Railroad.
Furthers the intent to create a City hydraulic outlet to the Mississippi River
c. Alternative 1c – Connection to MCES Interceptor
The proposed improvements for Alternative 1c include constructing a 15 cfs lift station at Shannon Pond
with a combination of force main and gravity storm sewer as shown in the Alternative 1c Figure. The
pipe alignment is east from Shannon Pond on the south side of 160th Street utilizing the 160th Street right-
of-way just past the railroad crossing. At this location storm sewer would be changed to gravity main and
would continue east along 160th Street until a connection can be made to the existing MCES interceptor
system at Biscayne Avenue. The MCES interceptor flows north and east and eventually outlets to the
Mississippi River.
A 10 cfs lift station would also need to be constructed at Wachter Pond with the force main from Wachter
Pond being routed east to Pond 2274. Pond 1990 would discharge to Pond 2187 through gravity main.
Alternative Considerations:
Additional connection agreements are required prior to construction between the City and MCES.
MCES has provided a discharge limitation (38 cfs) and MCES has currently stated they will not
allow this connection due to desires to utilize the interceptor effluent for industrial reuse.
Additional negotiations would be required to advance this alternative.
The 160th Street right of way is utilized to minimize land acquisition
Two lift stations (Shannon Pond and Wachter Pond) be constructed. The Wachter Pond lift
station would still be required and could not be connected with the Shannon Pond outlet.
Land would need to be acquired from the planned Canada Circle roadway extension to Pond
2274
All lift stations will be connected to SCADA system allowing coordination with upstream and
downstream ponds
Portions of the storm sewer would cross Robert Trail South and would need to be coordinated
with MnDOT
Furthers the intent to create a City hydraulic outlet to the Mississippi River
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 8
2. Intercommunity Discharge Rate Amendment
a. Alternative 2a – Outfall to the Future UMore Pond
The proposed improvements for Alternative 2a include constructing a 15 cfs lift station at Shannon Pond
with a combination of force main and gravity storm sewer as shown in the Alternative 2a Figure. The
pipe alignment is east from Shannon Pond on the south side of 160th Street utilizing the 160th Street right-
of-way just past the railroad crossing. At this location storm sewer would be changed to gravity main and
would continue east along 160th Street until a connection can be made to Pond 2162 on the UMore
property. An outlet from Pond 2162 would be directed south out of the City.
A 10 cfs lift station would also need to be constructed at Wachter Pond with the force main from Wachter
Pond being routed east to Pond 2274. Pond 1990 would discharge to Pond 2187 through gravity main.
Gravity storm sewer connections would also be made from Pond 2274 to Pond 2164 to Pond 2187 and
then storm sewer would outlet to Pond 2162 on the UMore property. Storm sewer for the future
development within UMore could be constructed along the future Boulder Trail alignment until discharging
into Pond 1918 and from Pond 1918 to Pond 1864.
Alternative Considerations:
Two lift stations (Shannon Pond and Wachter Pond) would be constructed and connected into the
one main trunk line
Permitting would be required to discharge stormwater in Pond 2162 on the UMore property. A
portion of Future Pond 2162 is within a high risk Drinking Water Supply Management Area
DWSMA) and within a Wellhead Protection Area. Additionally, the depth of future Pond 2162
shown in the UMore reclamation plan may interact with the groundwater in the area. Because of
these factors additional treatment prior to discharging to Pond 2162 and/or other additional
analysis may be needed to avoid contamination of the groundwater. The UMore reclamation plan
and a figure showing the DWSMAs within the City are included in Appendix C.
Pond 2162 won’t be able to be utilized until mining operations are completed within the UMore
property which would push back the timeline of this option
The 160th Street and Boulder Trail right of way are utilized to minimize land acquisition
Land would need to be acquired from the planned Canada Circle roadway extension to Pond
2274
All lift stations will be connected to SCADA system allowing coordination with upstream and
downstream ponds
Portions of the storm sewer would cross Robert Trail South and would need to be coordinated
with MnDOT
b. Alternative 2b –Outfall to Vermillion River Tributary through Empire Township
The proposed improvements for Alternative 2b include constructing a 15 cfs lift station at Shannon Pond
and force main sewer as shown in the Alternative 2b Figure. The pipe alignment is east from Shannon
Pond on the south side of 160th Street utilizing the 160th Street right-of-way just past the railroad crossing
to Biscayne Avenue. Force main would turn south at Biscayne Avenue, entering Empire Township, and
would continue south until it could outlet to Tributary Number 5C of the Vermillion River
A 10 cfs lift station would also need to be constructed at Wachter Pond with the force main from Wachter
Pond being routed east to Pond 2274. Pond 1990 would discharge to Pond 2187 through gravity main.
Alternative Considerations:
Permanent easements and an agreement with Empire Township are required for the section of
force main along Biscayne Avenue within Empire Township. This roadway is expected to only
have prescriptive rights within the roadway.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 9
Additional agreements are required prior to construction between the City and the Vermillion
River Watershed Joint Powers Organization to construct an outfall to a tributary of the Vermillion
River.
Two lift stations (Shannon Pond and Wachter Pond) would be constructed. The Wachter Pond lift
station would still be required and could not be connected with the Shannon Pond outlet.
There is a significant distance from the lift station to the outfall point and therefore this option
would have a very large cost.
It is expected that there are erodible soils near the Vermillion River tributary.
The Vermillion River is a protected trout stream with special stormwater temperature
requirements which need to be addressed.
Land would need to be acquired from the planned Canada Circle roadway extension to Pond
2274
All lift stations will be connected to SCADA system allowing coordination with upstream and
downstream ponds
Portions of the storm sewer would cross Robert Trail South and would need to be coordinated
with MnDOT.
Alternative routings of the Watcher Pond outlet could be considered.
c. Alternative 2c – Discharge to East Lake through City of Lakeville
The proposed improvements for Alternative 2c include constructing a 15 cfs lift station at Shannon Pond
and force main sewer as shown in the Alternative 2c Figure. The pipe alignment is west from Shannon
Pond on the south side of 160th Street utilizing the 160th Street right-of-way. The storm sewer would
continue west along 160th Street and then south to East Lake.
A 10 cfs lift station would also need to be constructed at Wachter Pond with the force main from Wachter
Pond being routed east to Pond 2274. Pond 1990 would discharge to Pond 2187 through gravity main.
Alternative Considerations
An agreement with the City of Lakeville would need to be established to determine allowed
discharge to East Lake.
East Lake is impaired for nutrients and a TMDL for waste load allocations (WLA) has been
established. The City has engaged the MPCA to confirm that this alternative is feasible under the
MPCA’s permitting guidelines. The City’s MS4 permit would be used as a control document for
the discharge under anti-degradation rules. The City’s WLA for East Lake is currently near zero,
so redirected flows to Cobblestone Lake would need to have limited phosphorus concentrations
to meet the City’s WLA for the East Lake watershed.
The 160th Street right of way is utilized to minimize land acquisition.
Two lift stations (Shannon Pond and Wachter Pond) would be constructed. The Wachter Pond lift
station would still be required and could not be connected with the Shannon Pond outlet.
Land would need to be acquired from the planned Canada Circle roadway extension to Pond
2274
All lift stations will be connected to SCADA system allowing coordination with upstream and
downstream ponds
Portions of the storm sewer would cross Robert Trail South and would need to be coordinated
with MnDOT
Alternative routings of the Wachter Pond outlet could be considered.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 10
3. Temporary Management
a. Alternative 3a – Wensmann Pond Diversion Structure
The proposed improvements for Alternative 3a include constructing a diversion structure with a relief
valve at the outlet from Wensmann Pond (Pond 2111) to divert Wensmann Pond’s discharge across the
City boundary into Apple Valley to Cobblestone Lake when needed as shown in the Alternative 3a
Figure. Water would then utilize the existing Cobblestone Lake outlet which goes south into Lakeville to
East Lake. The relief valve would remain closed until water levels in Shannon Pond and/or upstream
ponds reached a predetermined elevation which would trigger opening the relief valve to utilize the
diversion to Apple Valley. This would act as a form of temporary management until pond elevations
returned to an acceptable level.
The proposed diversion to Cobblestone Lake was sized to discharge the volume being pumped from the
upstream Birger Pond, Hawkins Pond, Copper Pond and Marcotte Pond for 96-hours during several
storm events. It was assumed that after 96-hours the upstream ponds would return back to an acceptable
water level and the lift station pumps at upstream ponds would be turned off. Table 5 shows the
discharge volume over a 96-hour period for several storm events.
Table 5- Volume Discharged to Cobblestone Lake (ac-ft)
24-hour, 100-yr 4-day, 100-yr 10-day snowmelt
72.62 58.91 1.82
Table 5 includes water from Lebanon Hills Pond 1213 under the assumption that a proposed lift station
from Pond 1213 is constructed and directed to Marcotte Pond. If the water from Pond 1213 isn’t included
the volume discharged to Cobblestone Lake decreases to what is shown in Table 6.
Table 6- Volume Discharged to Cobblestone Lake Excluding Pond 1213 Discharge (ac-ft)
24-hour, 100-yr 4-day, 100-yr 10-day snowmelt
55.34 50.98 1.16
This outlet from Wensmann Pond would reduce the risk of flooding downstream at Shannon Pond and
would alleviate the immediate need to construct an outlet at Shannon Pond. However, a lift station of at
least 7 cfs from Shannon Pond would still be required to alleviate the risk of inundating adjacent
structures.
A 10 cfs lift station would still need to be constructed at Wachter Pond with the force main from Wachter
Pond being routed east to Pond 2274. Pond 1990 would discharge to Pond 2187 through gravity main.
Alternative Considerations:
An agreement with all stakeholders would need to be established to determine an allowable
discharge. Stakeholder include the City of Apple Valley, the City of Lakeville, MPCA, DNR, and
the VRWJPO.
East Lake is impaired for nutrients and a TMDL for waste load allocations (WLA) has been
established. The City has engaged the MPCA to confirm that this alternative is feasible under the
MPCA’s permitting guidelines. The City’s MS4 permit would be used as a control document for
the discharge under anti-degradation rules. The City’s WLA for East Lake is currently near zero,
so redirected flows to Cobblestone Lake would need to have limited phosphorus concentrations
to meet the City’s WLA for the East Lake watershed.
Two lift stations (Shannon Pond and Wachter Pond) would be constructed and connected into the
one main trunk line
By discharging water out of the City upstream of Shannon Pond the flooding risk around Shannon
Pond is reduced and the immediate need for an outlet from Shannon Pond is reduced. An outlet
for Shannon Pond could be constructed in conjunction with future development.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 11
Land would need to be acquired from the planned Canada Circle roadway extension to Pond
2274
All lift stations will be connected to SCADA system allowing coordination with upstream and
downstream ponds
Portions of the storm sewer would cross Robert Trail South and would need to be coordinated
with MnDOT
Alternative routings of the Watcher Pond could be considered.
b. Alternative 3b – Temporary Pumping
Alternative 3b represents an interim condition solution of continuing to temporary dewater Shannon Pond
when it presents a flooding risk and discharging water south of 160th Street to the gravel mine as shown
in the Alternative 3b Figure.
The City has used temporary pumping to dewater Shannon Pond previously to provide emergency flood
risk mitigation when needed. In 2019, the City used temporary pumps to bring down water levels in
Shannon on two occasions. Pumping time varied each time between a week to about a month and the
total cost to the City for both occasions was around $50,000. The water was discharged across 160th
Street to the gravel mine. The costs above are only for the labor and operation of the pumping equipment;
costs for securing pumping equipment and coordinating an agreement with the gravel mine owners every
year are not included in the $50,000.
Because the City does not own the pumping equipment the City does not have a guarantee that they will
be able to secure pumping equipment in an emergency. Additionally, without a permanent agreement in
place, there is a risk that the gravel mine owner may not allow the City to pump to their site in the future.
The gravel mine owner has noted previously that they are concerned with increasing levels of
groundwater due to the pumping which may make the owner less likely to allow water to be pumped to
their site. Unlike the permanent outlet alternatives presented, the variables noted for Alternative 3b
increase the risk that the City would not be able to dewater Shannon Pond in a quick enough time frame
to stop the pond from inundating adjacent homes.
The City could continue to temporary pump from Shannon Pond on an as needed basis and could
assume costs for pumping would be in line with 2019 pumping costs plus the costs for securing the
pumping equipment and getting approval from the gravel mine landowner.
Alternative Considerations
This alternative does not present a long-term solution to providing an outlet for Shannon Pond,
nor does it present a solution for other waterbodies (Wachter and Pond 1990) within the City.
An agreement with the owners of the gravel mine must be reached each time the City needs to
dewater. The City runs the risk of the gravel mine not agreeing to allow the City to discharge to
their property.
The City does not own the dewatering equipment and would not be guaranteed a response in an
emergency.
Low up-front costs compared to other alternatives.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 12
4. Right-of-Way/Easements
It is recommended that a combination of permanent utility easements and permits within the existing
right-of-way be secured along the entire length improvements. Land acquisition may be an added project
cost, but an opportunity may exist to obtain easements through dedication if the improvements are
phased with development. Additional easement requirements may exist if unforeseen issues arise with
the use of the right-of-way along 160th Street West. To date, the project has been supported through
conversations with Dakota County.
Easement area estimates for the required permanent and temporary easements can be found in
Appendix C. Easements were not estimated for improvements east of Akron Avenue for this analysis.
The estimates assume the 2020 estimated land values for fee title are $125,000 per acre with a
permanent easement requiring 80% of the fee title cost and temporary easements requiring 15% per year
of the fee title cost. Variation of land value is expected based on current market value as well as
easement location within a specific parcel. An appraisal will be necessary to determine the exact value of
each property and required easement.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 13
V. FINANCING
A detailed opinion of cost for the first seven alternatives can be found in Appendix B of this report. Table
7 shows a summary of the anticipated costs for each alternative. The opinion of probable cost
incorporates estimated 2020 construction costs, including a 20% contingency, and 30% for all related
indirect costs (legal, administrative, engineering, and financing items).
Financing for this entire project will be provided by the City of Rosemount Stormwater Utility Fund. It is
expected that this project will be completed over several years as the areas adjacent to the improvements
are developed by land owners. This will provide an opportunity for some or all of the easements to be
dedicated which will reduce the total project cost and funding requirements. The exact funding
requirements are not know at this time due to the variation in development. It is expected that the
improvements will be sequenced with the recommendations provided in the following section.
Several Bonding bills programs have been presented in 2019 to assist communities with adapting to
climate change. In January 2020, Governor Walz recommended $15 million for a pilot program. This
year’s legislative session is unusual, and funding is not guaranteed. If the bonding bill is passed, the
program could be open to applicants as soon as fall 2020. Grants would fund projects to increase the
storage, infiltration, and conveyance capacity of stormwater systems, as well as increasing the durability
of stormwater systems. Pending approval of the bill, municipalities and public entities in partnership with
municipalities would be encouraged to apply.
Table 7- Option Cost Estimate Summary Table
Alternative Surface
Improvements Construction
Estimate
Wachter Pond Outlet Construction Estimate Shannon Pond Outlet Construction Estimate Trunk Storm Sewer Improvements Construction Estimate Contingency Indirect Costs Total
Cost Alternative
1a: Three
Lift Stations
2,135,166 $919,000 $2,145,000 $4,456,980 $1,931,230 $3,476,210 $15,063,
586 Alternative
1b: Boulder
Trail Trunk
Line 998,590 $919,000 $2,145,000 $2,872,438 $1,387,010 $2,496,610 $10,818,
648 Alternative
1c: Connection to
MCES Interceptor
721,
976 $919,000 $2,155,000 $1,223,660 $1,003,930 $1,807,070 $7,830,636 Alternative
2a: Outfall
to the
Future UMore
Pond
908,625 $919,000 $2,155,000 $1,689,660 $1,134,460 $2,042,030 $8,848,775 Alternative
2b: Outfall
to Vermillion River
Tributary
1,015,625 $919,000 $3,210,000 $2,222,766 $1,473,480 $2,652,260 $11,493,131
Alternative 2c:
Discharge to
East
Lake
1,236,885 $919,000 $1,170,000 $2,601,416 $1,185,460 $2,133,830 $9,246,591
Alternative 3a:
Wensmann
Pond Diversion Structure 1,064,130 $919,000 $1,452,500 $2,503,812 $1,187,890 $2,
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 14
VI. PERMITTING AND AGREEMENTS
All long-term alternatives presented will require permitting through different state agencies and/or
agreements with different entities. Table 8 summarizes the anticipated permits and/or agreements
required for each alternative. Additional time for coordination and permitting should be considered for
alternatives that require multiple agreements or permits. As all long-term alternatives include constructing
storm sewer which crosses Robert Trail South (Trunk Highway 3) a permit from MnDOT will be required.
Additionally, all long-term alternatives include constructing storm sewer which crosses under railroad
tracks requiring an agreement with Union Pacific Railroad.
The Intercommunity Discharge Rate Amendment alternatives analyzed (Alternatives 2a-2c) would require
agreements with adjacent communities as well as the VRWJPO. Getting an intercommunity discharge
rate amendment approved by the VRWJPO is anticipated to be difficult. Since the VRWJPO established
intercommunity discharge rates in 2016 there have not been any rate amendments approved.
Additionally, it is expected to be difficult to get adjacent communities to agree to allow more water to
come into their City than what they have currently. These anticipated challenges with agreements may
push back times and should be considered when deciding on the preferred alternative.
Table 8 - Option Summary Table
Alternative Total Cost
Permitting Agencies Agreements
DNR MPCA
MDH MnDOT
VRWJPO
Union Pacific Railroad MCES City
Apple Valley
City of
Lakeville Empire
Township Gravel Mine Alternative 1a:
Three Lift
Stations 15,
063,
586
X X Alternative 1b: Boulder Trail
Trunk Line
10,818,648
X X
Alternative
1c: Connection to MCES Interceptor 7,830,
636 X
X X
Alternative 2a:
Outfall
to the Future UMore Pond 8,848,
775 X
X X
X Alternative
2b: Outfall to Vermillion River Tributary 11,493,
131 X
X
X X
Alternative
2c: Discharge to East Lake 9,246,591 X X
X X
X
Alternative
3a: Wensmann Pond Diversion Structure 9,
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Page 15
VII. RECOMMENDATION
The intent of this feasibility report was to determine the best option for providing an outlet for Shannon
Pond. In addition, analysis was done for providing outlets for other waterbodies in the City such as
Wachter Pond and Pond 1990. A series of recommendations have been provided below detailing the best
course of action given the agreements and unknowns surrounding the adjacent properties.
At this time, it is recommended to start communication with the VRWJPO. If an agreement cannot be
reached to amend the intercommunity discharge rates it is recommended that the city pursue discharges
via Alternative 2a to the UMORE Mine Pond followed by Alternatives 1a / 1b based on proposed
development schedule.
It is recommended that Alternatives 1a/1b be completed in stages to allow for development to coincide
with the improvements making land dedication possible. It is possible to phase Alternative 1a/1b,
allowing additional time for an agreement to be made between the U of M and the City of Rosemount.
The first phase should include all improvements west of Biscayne Avenue without the connection
between Pond 2187 and Pond 2162. If an agreement between the U of M and the City of Rosemount
cannot be found it is recommended that the improvements should continue as outlined within Alternative
1a of this report.
If an agreement between the U of M and the City of Rosemount can be obtained, Alternative 1b is
recommended given relative lower project cost, the construction of a significant portion of the City’s
stormwater conveyance system. Alternative 1b also provides the flexibility to switch to Alternative 2a if it
can be agreed upon by the U of M, VRWJPO and the City.
The total estimated cost not including land acquisition of Alternative 1b is $10,818,648. The entire project
cost is proposed to be funded by the City Storm Sewer Core Funds.
This project is feasible because there are no engineering factors to prevent the project from being
completed. The project is necessary to provide an outlet to Shannon Pond as required by the Rosemount
Comprehensive Stormwater Management Plan and to reduce the risk of flooding to structures. The
project is also cost-effective from a design efficiency standpoint by utilizing the 160th Street West right-of-
way and incorporating a combination of force main and gravity storm sewer. We recommend completion
of the Shannon Pond Outlet Project as outlined in this report.
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Appendix
APPENDIX A
FIGURES
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2187
2439 0202
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023502471969 2442
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DocumentPath: k:\015190-000\
GIS\Maps\015190-
000ShannonPond\SummaryMap1Date
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000 FeetShannonand Wachter
Pond OutletsFeasibilityStudy
WSB ProjectNo. 015190-
000 FutureTrunkLine
to theMississippi River
Alternatives FigureAlt. 1a
Gravity StormAlt. 1aForce
Main Alt. 1b Gravity
Storm Alt.
1b ForceMain
Alt. 1c Gravity Storm
Alt. 1c Force Main
Wachter Pond
ForceMainOutlet
Xä
ProposedLiftStations
Regional
Basins Planned PondExpansion
MinorDrainageArea
Boundaries MCES Trunk
Effluent
Pipe
UMore Boundary15CFS
Lift Station10
CFS LiftStationApprox.
transition at948'
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2448
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2162
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Feasibility StudyWSBProjectNo.
015190-000IntercommunityDischarge
Rate AmendmentAlternativesFigureAlt.
2a GravityStormSewer
Alt. 2aForceMainAlt.
2b GravityStormSewer
Alt. 2b
ForceMainAlt.
2c GravityStormSewer
Alt. 2cForce Main
WachterPond
ForceMainOutlet
Xä
ProposedLiftStations
Regional
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000 FeetShannonand Wachter
Pond OutletsFeasibilityStudyWSB
Project No. 015190-000Temporary
Management Alternatives
FigureAlt. 3a
Gravity Storm Sewer Alt.
3a Force Main Alt.
3bGravity
StormSewerWachter
Pond Force Main
Outlet
Regional
BasinsPlanned
Pond
Expansion Minor Drainage
Area
Xä
Xä
Xä
ShannonPond
WestUofM
EricksonPond
WachterPond
KeeganLakeHawkinsPond
2443
2448
2447
0614
2162
21626091
2450 2270
0609
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2444 2189
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2187
2439 0202
0600
2119
0788 1990
7941
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2042 2031
023502471969 2442
0243
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0240
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1935
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1918
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0596
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FeasibilityStudyWSB
Project No.
015190-000Alternative
1a Trunk Storm
Sewer XäProposedLift
StationsProposedForce Main
ProposedGravity
Existing
ForceMainRegional
Basins
PlannedPondExpansion
Major
SubwatershedBoundariesMinorDrainage
AreaBoundaries
MCESTrunkEffluentPipe
UMoreBoundary
AddStormSewer15CFS
LiftStation
10CFSLiftStation
5,900
LF24"Force
Main1,
480LF24"
GravityMain
770LF24"Force
Main2,
150LF30"Gravity
Main620
LF48"Gravity
Main520
LF 48"GravityMain
5,400LF
30"
Force
Main3,600LF
48"Gravity
Xä
Xä
Xä
ShannonPond
WestUofM
EricksonPond
WachterPond
KeeganLake
HawkinsPond
2443
2448
2447
0614
2162
21626091
2450 2270
0609
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2444 2189
2164
24462111
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2187
2439 0202
0600 2451
2119
0788 1990
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2042
2031 2027
023502471969 2442
0243
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1935
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FeasibilityStudyWSB
ProjectNo. 015190-
000Alternative1bTrunk
StormSewerXäProposed
LiftStations
Proposed Force
MainProposedGravity
ExistingForceMain
Major
SubwatershedBoundariesMinor
Drainage
AreaBoundariesMCESTrunk
EffluentPipe
UMoreBoundaryRegionalBasins
PlannedPond
Expansion15CFS
LiftStation
10CFSLiftStation
5,900
LF24"Force
Main1,
480LF24"
GravityMain
770LF24"Force
Main2,
150LF30"
GravityMain
620LF48"
GravityMain
Xä
Xä
Xä
Xä
ShannonPond
WestUofM
EricksonPond
WachterPond
KeeganLakeHawkinsPond
2443
2448
2447
0614
2162
21626091
2450 2270
0609
2445
2274
2444
2189
2164
24462111
2449
2187
2439 0202
0600 2451
2119
0788 1990
7941
2030
2042 2031 2027
023502471969 2442
0243
1994
0240
2475
1935
2474
0111
1950
1918
0077
0596
0578
3066
1865
18640589
3004
3006
3007 3008
0757
3074
3092 3103
2441
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000ShannonPond\Alternative1c
DateSaved: 8/17/2020
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1,000 FeetShannon Pond
Outlet FeasibilityStudy
WSB Project
No. 015190-000
Alternative 1c Trunk
Storm Sewer XäProposed
LiftStations Xä Existing
Lift Stations
Proposed Force
Main ProposedGravity
ExistingForceMain
Major
SubwatershedBoundariesMinor
Drainage
AreaBoundariesMCES
TrunkEffluent
PipeUMoreBoundaryRegional
BasinsPlanned
PondExpansion15
CFSLift
Station10CFSLift
Station6000
LF24"Force
Main3,
250LF24"
GravityMain
770 LF
24"Force
Main2,
150 LF
30"Gravity
Main620LF
36"Gravity
Main520LF36"
GravityMain
OutfallintoMCES
TrunklineCobblestone
Xä
Xä
Xä
ShannonPond
WestUofM
EricksonPond
WachterPond
KeeganLakeHawkinsPond
2443
2448
2447
0614
2162
21626091
2450 2270
0609
2445
2274
2444
2189
2164
2446
2111
2449
2187
2439 0202
0600 2451
2119
0788 1990
7941
2030
2042 2031
023502471969 2442
0243
1994
0240
2475
1935
2474
0111
1950
1918
0077
0596
0578
3066
1865
18640589
3004
3006
3007 3008
0757
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PondOutlets
FeasibilityStudyWSB
Project No. 015190-
000 Alternative2aTrunk
StormSewerXäProposed
LiftStations
Proposed Force
MainProposedGravity
Existing
ForceMainMajor
SubwatershedBoundaries
MinorDrainageAreaBoundaries
MCESTrunk
EffluentPipeUMoreBoundary
RegionalBasins
15CFSLift
Station6000
LF24"Force
Main
3,250LF
24"Gravity
Main5,700LF
21"Gravity
Main480LF
24"Gravity
Main10CFS
LiftStation
770LF24"
ForceMain
Xä
Xä
ShannonPond WestUofM
EricksonPond
WachterPond
2443
2448
2447
0614
2162
2162
21626091
2450 2270
0609
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2164
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EmpireTwp.
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PondOutlets
FeasibilityStudyWSB
Project No. 015190-
000 Alternative 2b Trunk
StormSewerXäProposed
Lift Stations
Proposed
ForceMainProposed
Gravity Existing
Force Main Major
SubwatershedBoundariesMinor
Drainage
AreaBoundariesMCESTrunk
EffluentPipe
UMoreBoundaryFloodway
100-
YearFloodplainRegional
BasinsPlanned
PondExpansion15CFS
LiftStation
11,100LF
24"Force
Main10CFS
LiftStation
770LF24"Force
Main2,
Xä
Xä
AppleValley
EmpireTwp.
ShannonPond
EricksonPond
WachterPond
2443
2448
2447
0614
6091
2450 2270
0609
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2274
2444
24462111
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2439 0202
0600 2451
0788
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Pond Outlets
Feasibility Study WSB
Project No.
015190-000 Alternative
2c Trunk Storm Sewer
Xä Proposed Lift Stations
Proposed Force
MainProposedGravity
Existing
ForceMainRegional
Basins
MajorSubwatershedBoundariesMinor
DrainageArea
BoundariesMCESTrunkEffluent
PipeUMore
Boundary 15CFSLiftStation10
CFSLift Station2,000
LF24"Force
Main4,
500LF24"Gravity
MainPotential
Xä
Xä
AppleValley
Lakeville AppleValleyEmpire
Twp.LakevilleEmpire
Twp.LakevilleShannon
PondErickson
Pond
Wachter
Pond
Hawkins
Pond
2443
2448
2447
0614 2162
6091
2450
2270
0609
2445
2274
2444
2164
2446
2111 2449
2187 2439
0202
0600 2451
2119
0788
1990
79412030
2042
203102472442
02430240 3004
3006 3007
3008
30923103 2441DocumentPath:
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3aDateSaved: 8/17/
20203:
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01,000
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WachterPondOutlets
FeasibilityStudyWSB
ProjectNo. 015190-000
Alternative3aTrunkStorm
Sewer Xä
Proposed Lift
StationsProposedForce
MainProposedGravity
Existing
ForceMainMajor
Subwatershed
BoundariesMinorDrainageArea
BoundariesMCES
TrunkEffluentPipe
UMoreBoundary
RegionalBasinsPlannedPond
Expansion10
CFSLiftStation
7CFS
LiftStation5,
900LF
18"Force
Main770LF24"
ForceMain
2,150 LF
30"GravityMain
620LF36"
GravityMain
520LF36"Gravity
MainCobblestone
ShannonPond
EricksonPond
2443
2448
2447
0614
6091
2450
2270
0609
3004
3006
3092
2441
EmpireTwp.
DocumentPath: K:\015190-
000\GIS\
Maps\015190-000ShannonPond\Alternative3b
DateSaved: 8/18/2020
9:19
AM¯1inch =
500feet0
500FeetShannon
and Wachter
PondOutletsFeasibility
StudyWSBProjectNo.
015190-000Alternative 3b
TrunkStorm
SewerProposedForce
MainProposed
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Appendix
APPENDIX B
COST ESTIMATES
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit Estimated Unit
Price
Estimated Total
Quantity
Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $200,000.00 1 $200,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 2120 $21,200.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 28000 $420,000.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 18700 $280,500.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 14 $7,000.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 8505 $425,250.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 8505 $595,350.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 1680 $5,040.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 100 $3,000.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $30,000.00 1 $30,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 22 $132,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 118 $826.00
Surface Improvements - Subtotal $2,135,166.00
20% Contingencies $427,030.00
Subtotal $2,562,196.00
30% Indirect Cost $768,660.00
Surface Improvements Total $3,330,856.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 5900 $1,180,000.00
19 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
20 2506.601 15 CFS LIFT STATION - SHANNON POND EACH $750,000.00 1 $750,000.00
21 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 100 $50,000.00
Shannon Pond Outlet Improvements - Subtotal $2,145,000.00
20% Contingencies $429,000.00
Subtotal $2,574,000.00
30% Indirect Cost $772,200.00
Shannon Pond Outlet Improvements - Total $3,346,200.00
D. TRUNK STORM SEWER
22 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
23 2501.602 48" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $15,000.00 6 $90,000.00
24 2503.503 21" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $60.00 5700 $342,000.00
25 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 1480 $103,600.00
26 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
27 2503.503 48" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $175.00 5240 $917,000.00
28 2503.603 30" FORCE MAIN DUCTILE IRON PIPE LIN FT $300.00 5400 $1,620,000.00
29 2506.601 26 CFS LIFT STATION - POND 1990 EACH $900,000.00 1 $900,000.00
30 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 20 $10,000.00
31 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 80 $52,000.00
32 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 72-4020 LIN FT $1,000.00 180 $180,000.00
33 2506.502 CASTING ASSEMBLY EACH $750.00 44 $33,000.00
34 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 70 $5,600.00
35 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 35 $280.00
Trunk Storm Sewer Improvements - Subtotal $4,456,980.00
20% Contingencies $891,400.00
Subtotal $5,348,380.00
30% Indirect Cost $1,604,510.00
Trunk Storm Sewer Improvements - Total $6,952,890.00
TOTAL ALTERNATIVE 1A $15,063,586.00
Alternative 1a: Three Lift Stations (Shannon/Wachter/Business Park Pond)
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit Estimated Unit
Price
Estimated Total
Quantity
Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $180,000.00 1 $180,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 2200 $22,000.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 8010 $120,150.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 5340 $80,100.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 4 $2,000.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 2450 $122,500.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 2450 $171,500.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 480 $1,440.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 2300 $69,000.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $30,000.00 1 $30,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 30 $180,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 700 $4,900.00
Surface Improvements - Subtotal $998,590.00
20% Contingencies $199,720.00
Subtotal $1,198,310.00
30% Indirect Cost $359,490.00
Surface Improvements Total $1,557,800.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 5900 $1,180,000.00
19 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
20 2506.601 15 CFS LIFT STATION - SHANNON POND EACH $750,000.00 1 $750,000.00
21 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 100 $50,000.00
Shannon Pond Outlet Improvements - Subtotal $2,145,000.00
20% Contingencies $429,000.00
Subtotal $2,574,000.00
30% Indirect Cost $772,200.00
Shannon Pond Outlet Improvements - Total $3,346,200.00
D. TRUNK STORM SEWER
22 2501.602 18" RC PIPE APRON W/ TRASHGUARD EACH $2,000.00 2 $4,000.00
23 2501.602 24" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $6,000.00 2 $12,000.00
24 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
25 2501.602 48" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $15,000.00 6 $90,000.00
26 2503.503 18" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $55.00 770 $42,350.00
27 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 1960 $137,200.00
28 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
29 2503.503 48" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $175.00 9540 $1,669,500.00
30 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 20 $10,000.00
31 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 80 $52,000.00
32 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 72-4020 LIN FT $1,000.00 600 $600,000.00
33 2506.502 CASTING ASSEMBLY EACH $750.00 60 $45,000.00
34 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 82 $6,560.00
35 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 41 $328.00
Trunk Storm Sewer Improvements - Subtotal $2,872,438.00
20% Contingencies $574,490.00
Subtotal $3,446,928.00
30% Indirect Cost $1,034,080.00
Trunk Storm Sewer Improvements - Total $4,481,008.00
TOTAL ALTERNATIVE 1B $10,818,648.00
Alternative 1b: Boulder Trail Trunk Line
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit
Estimated Unit
Price
Estimated Total
Quantity Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $170,000.00 1 $170,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 350 $3,500.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 7000 $105,000.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 4800 $72,000.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 3.75 $1,875.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 2200 $110,000.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 2200 $154,000.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 425 $1,275.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 350 $10,500.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $12,000.00 1 $12,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 11 $66,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 118 $826.00
Surface Improvements - Subtotal $721,976.00
20% Contingencies $144,400.00
Subtotal $866,376.00
30% Indirect Cost $259,910.00
Surface Improvements Total $1,126,286.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 6000 $1,200,000.00
19 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
20 2506.601 15 CFS LIFT STATION - SHANNON POND EACH $750,000.00 1 $750,000.00
21 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 80 $40,000.00
Shannon Pond Outlet Improvements - Subtotal $2,155,000.00
20% Contingencies $431,000.00
Subtotal $2,586,000.00
30% Indirect Cost $775,800.00
Shannon Pond Outlet Improvements - Total $3,361,800.00
D. TRUNK STORM SEWER
22 2501.602 18" RC PIPE APRON W/ TRASHGUARD EACH $2,000.00 2 $4,000.00
23 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
24 2501.602 36" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $13,000.00 5 $65,000.00
25 2503.503 18" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $55.00 770 $42,350.00
26 2503.503 21" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $60.00 5700 $342,000.00
27 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 3730 $261,100.00
28 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
29 2503.503 36" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $140.00 1140 $159,600.00
30 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 110 $55,000.00
31 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 90 $58,500.00
32 2506.502 CASTING ASSEMBLY EACH $750.00 39 $29,250.00
33 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 40 $3,200.00
34 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 20 $160.00
Trunk Storm Sewer Improvements - Subtotal $1,223,660.00
20% Contingencies $244,730.00
Subtotal $1,468,390.00
30% Indirect Cost $440,520.00
Trunk Storm Sewer Improvements - Total $1,908,910.00
TOTAL ALTERNATIVE 1C $7,830,636.00
Alternative 1c: Connection to MCES Interceptor
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit Estimated Unit
Price
Estimated Total
Quantity
Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $200,000.00 1 $200,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 300 $3,000.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 7500 $112,500.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 5000 $75,000.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 3.75 $1,875.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 2300 $115,000.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 2300 $161,000.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 450 $1,350.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 300 $9,000.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $30,000.00 1 $30,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 30 $180,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 700 $4,900.00
Surface Improvements - Subtotal $908,625.00
20% Contingencies $181,730.00
Subtotal $1,090,355.00
30% Indirect Cost $327,110.00
Surface Improvements Total $1,417,465.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 6000 $1,200,000.00
19 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
20 2506.601 15 CFS LIFT STATION - SHANNON POND EACH $750,000.00 1 $750,000.00
21 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 80 $40,000.00
Shannon Pond Outlet Improvements - Subtotal $2,155,000.00
20% Contingencies $431,000.00
Subtotal $2,586,000.00
30% Indirect Cost $775,800.00
Shannon Pond Outlet Improvements - Total $3,361,800.00
D. TRUNK STORM SEWER
22 2501.602 18" RC PIPE APRON W/ TRASHGUARD EACH $2,000.00 2 $4,000.00
23 2501.602 24" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $6,000.00 2 $12,000.00
24 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
25 2501.602 36" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $13,000.00 6 $78,000.00
26 2503.503 18" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $55.00 770 $42,350.00
27 2503.503 21" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $60.00 5700 $342,000.00
28 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 3730 $261,100.00
29 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
30 2503.503 36" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $140.00 1460 $204,400.00
31 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 130 $65,000.00
32 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 650 $422,500.00
33 2506.502 CASTING ASSEMBLY EACH $750.00 63 $47,250.00
34 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 90 $7,200.00
35 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 45 $360.00
Trunk Storm Sewer Improvements - Subtotal $1,689,660.00
20% Contingencies $337,930.00
Subtotal $2,027,590.00
30% Indirect Cost $608,280.00
Trunk Storm Sewer Improvements - Total $2,635,870.00
TOTAL ALTERNATIVE 2A $8,848,775.00
Alternative 2a: Outfall to the Future UMore Pond
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit
Estimated Unit
Price
Estimated Total
Quantity Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $200,000.00 1 $200,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 350 $3,500.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 7500 $112,500.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 5000 $75,000.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 3.75 $1,875.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 4300 $215,000.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 4300 $301,000.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 450 $1,350.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 350 $10,500.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $15,000.00 1 $15,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 10 $60,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 700 $4,900.00
Surface Improvements - Subtotal $1,015,625.00
20% Contingencies $203,130.00
Subtotal $1,218,755.00
30% Indirect Cost $365,630.00
Surface Improvements Total $1,584,385.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 11100 $2,220,000.00
19 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
20 2506.601 15 CFS LIFT STATION - SHANNON POND EACH $750,000.00 1 $750,000.00
21 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 150 $75,000.00
Shannon Pond Outlet Improvements - Subtotal $3,210,000.00
20% Contingencies $642,000.00
Subtotal $3,852,000.00
30% Indirect Cost $1,155,600.00
Shannon Pond Outlet Improvements - Total $5,007,600.00
D. TRUNK STORM SEWER
22 2501.602 18" RC PIPE APRON W/ TRASHGUARD EACH $2,000.00 2 $4,000.00
23 2501.602 24" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $7,000.00 1 $7,000.00
24 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
25 2501.602 36" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $13,000.00 8 $104,000.00
26 2503.503 18" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $55.00 770 $42,350.00
27 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 480 $33,600.00
28 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
29 2503.503 36" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $140.00 9540 $1,335,600.00
30 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 20 $10,000.00
31 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 650 $422,500.00
32 2506.502 CASTING ASSEMBLY EACH $750.00 72 $54,000.00
33 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 74 $5,920.00
34 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 37 $296.00
Trunk Storm Sewer Improvements - Subtotal $2,222,766.00
20% Contingencies $444,550.00
Subtotal $2,667,316.00
30% Indirect Cost $800,190.00
Trunk Storm Sewer Improvements - Total $3,467,506.00
TOTAL ALTERNATIVE 2B $11,493,131.00
Alternative 2b: Outfall to Vermillion River Tributary through Empire Township
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit
Estimated Unit
Price
Estimated Total
Quantity Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $200,000.00 1 $200,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 500 $5,000.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 11100 $166,500.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 7400 $111,000.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 5.75 $2,875.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 5330 $266,500.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 5330 $373,100.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 670 $2,010.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 500 $15,000.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $15,000.00 1 $15,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 10 $60,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 700 $4,900.00
Surface Improvements - Subtotal $1,236,885.00
20% Contingencies $247,380.00
Subtotal $1,484,265.00
30% Indirect Cost $445,280.00
Surface Improvements Total $1,929,545.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 2000 $400,000.00
19 2506.601 15 CFS LIFT STATION - SHANNON POND EACH $750,000.00 1 $750,000.00
20 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 40 $20,000.00
Shannon Pond Outlet Improvements - Subtotal $1,170,000.00
20% Contingencies $234,000.00
Subtotal $1,404,000.00
30% Indirect Cost $421,200.00
Shannon Pond Outlet Improvements - Total $1,825,200.00
D. TRUNK STORM SEWER
21 2501.602 18" RC PIPE APRON W/ TRASHGUARD EACH $2,000.00 2 $4,000.00
22 2501.602 24" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $70,000.00 1 $70,000.00
23 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
24 2501.602 36" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $13,000.00 8 $104,000.00
25 2503.503 18" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $55.00 770 $42,350.00
26 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 4500 $315,000.00
27 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
28 2503.503 36" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $140.00 9540 $1,335,600.00
29 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 20 $10,000.00
30 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 720 $468,000.00
31 2506.502 CASTING ASSEMBLY EACH $750.00 57 $42,750.00
32 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 74 $5,920.00
33 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 37 $296.00
Trunk Storm Sewer Improvements - Subtotal $2,601,416.00
20% Contingencies $520,280.00
Subtotal $3,121,696.00
30% Indirect Cost $936,510.00
Trunk Storm Sewer Improvements - Total $4,058,206.00
TOTAL ALTERNATIVE 2C $9,246,591.00
Alternative 2c: Discharge to East Lake through City of Lakeville
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit
Estimated Unit
Price
Estimated Total
Quantity
Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $180,000.00 1 $180,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 2250 $22,500.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 11000 $165,000.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 7500 $112,500.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 5.5 $2,750.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 3350 $167,500.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 3350 $234,500.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 660 $1,980.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 2250 $67,500.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $30,000.00 1 $30,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 10 $60,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 700 $4,900.00
Surface Improvements - Subtotal $1,064,130.00
20% Contingencies $212,830.00
Subtotal $1,276,960.00
30% Indirect Cost $383,090.00
Surface Improvements Total $1,660,050.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.603 18" FORCE MAIN DUCTILE IRON PIPE LIN FT $125.00 5900 $737,500.00
19 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
20 2506.601 7 CFS LIFT STATION - SHANNON POND EACH $500,000.00 1 $500,000.00
21 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 100 $50,000.00
Shannon Pond Outlet Improvements - Subtotal $1,452,500.00
20% Contingencies $290,500.00
Subtotal $1,743,000.00
30% Indirect Cost $522,900.00
Shannon Pond Outlet Improvements - Total $2,265,900.00
D. WENSMANN DIVERSION
20 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 2000 $140,000.00
21 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 50 $25,000.00
22 2506.503
CONSTRUCT DRAINAGE SPECIAL STRUCTURE - DIVERSION
STRUCTURE
EACH $30,000.00 1 $30,000.00
Shannon Pond Outlet Improvements - Subtotal $165,000.00
20% Contingencies $33,000.00
Subtotal $198,000.00
30% Indirect Cost $59,400.00
Wensmann Diversion Improvements - Total $257,400.00
E. TRUNK STORM SEWER
22 2501.602 18" RC PIPE APRON W/ TRASHGUARD EACH $2,000.00 2 $4,000.00
23 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
24 2501.602 36" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $13,000.00 8 $104,000.00
25 2503.503 18" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $55.00 2250 $123,750.00
26 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
27 2503.503 36" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $140.00 9540 $1,335,600.00
28 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 200 $100,000.00
29 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 650 $422,500.00
30 2506.502 CASTING ASSEMBLY EACH $750.00 53 $39,750.00
31 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 68 $5,440.00
32 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 34 $272.00
Trunk Storm Sewer Improvements - Subtotal $2,338,812.00
20% Contingencies $467,760.00
Subtotal $2,806,572.00
30% Indirect Cost $841,970.00
Trunk Storm Sewer Improvements - Total $3,648,542.00
TOTAL ALTERNATIVE 3A $9,265,532.00
Alternative 3a: Wensmann Pond Diversion Structure
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:8/14/2020
Item No.
MnDOT
Specification
No.
Description Unit
Estimated Unit
Price
Estimated Total
Quantity
Estimated Total Cost
A. SURFACE IMPROVEMENTS
1 2021.501 MOBILIZATION LUMP SUM $180,000.00 1 $180,000.00
2 2101.501 CLEARING & GRUBBING LUMP SUM $15,000.00 1 $15,000.00
3 2104.503 REMOVE CURB AND GUTTER LIN FT $10.00 300 $3,000.00
4 2104.504 REMOVE BITUMINOUS PAVEMENT SQ YD $15.00 900 $13,500.00
5 2105.522 SELECT GRANULAR BORROW (CV) CU YD $15.00 600 $9,000.00
6 2112.519 SUBGRADE PREPARATION ROAD STA $500.00 0.5 $250.00
7 2211.509 AGGREGATE BASE CLASS 5 (100% CRUSHED) TON $50.00 2250 $112,500.00
8 2360.509 TYPE SP 12.5 NON WEAR COURSE MIX (2:C) TON $70.00 2250 $157,500.00
9 2357.506 BITUMINOUS MATERIAL FOR TACK COAT GALLON $3.00 60 $180.00
10 2531.503 CONCRETE CURB & GUTTER, DESIGN B618 LIN FT $30.00 300 $9,000.00
11 2563.601 TRAFFIC CONTROL LUMP SUM $15,000.00 1 $15,000.00
12 2575.505 SEEDING (INCL TOPSOIL, FERT, MULCH, DISC ANCHOR) ACRE $6,000.00 10 $60,000.00
13 2575.508 SEED MIXTURE 25-141 POUND $7.00 700 $4,900.00
Surface Improvements - Subtotal $579,830.00
20% Contingencies $115,970.00
Subtotal $695,800.00
30% Indirect Cost $208,740.00
Surface Improvements Total $904,540.00
B. WACHTER POND OUTLET
14 2503.603 24" FORCE MAIN DUCTILE IRON PIPE LIN FT $200.00 770 $154,000.00
15 2504.603 36" STEEL CASING PIPE LIN FT $550.00 300 $165,000.00
16 2506.601 10 CFS LIFT STATION - WACHTER POND EACH $600,000.00 1 $600,000.00
17 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 10 $5,000.00
Wachter Pond Outlet Improvements - Subtotal $919,000.00
20% Contingencies $183,800.00
Subtotal $1,102,800.00
30% Indirect Cost $330,840.00
Wachter Pond Outlet Improvements - Total $1,433,640.00
C. SHANNON POND OUTLET
18 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 930 $65,100.00
19 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 20 $10,000.00
Shannon Pond Outlet Improvements - Subtotal $75,100.00
20% Contingencies $15,020.00
Subtotal $90,120.00
30% Indirect Cost $27,040.00
Shannon Pond Outlet Improvements - Total $117,160.00
D. TRUNK STORM SEWER
14 2501.602 18" RC PIPE APRON W/ TRASHGUARD EACH $2,000.00 2 $4,000.00
15 2501.602 24" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $7,000.00 2 $14,000.00
16 2501.602 30" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $10,000.00 1 $10,000.00
17 2501.602 36" RC PIPE APRON W/ TRASHGUARD & SHEET PILE EACH $13,000.00 8 $104,000.00
18 2503.503 18" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $55.00 770 $42,350.00
19 2503.503 24" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $70.00 480 $33,600.00
20 2503.503 30" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $90.00 2150 $193,500.00
21 2503.503 36" RC PIPE SEWER DESIGN 3006 CLASS III LIN FT $140.00 9540 $1,335,600.00
22 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 48-4020 LIN FT $500.00 25 $12,500.00
23 2506.503 CONSTRUCT DRAINAGE STRUCTURE DESIGN 60-4020 LIN FT $650.00 650 $422,500.00
24 2506.502 CASTING ASSEMBLY EACH $750.00 37 $27,750.00
25 2511.507 RANDOM RIPRAP CL IV CU YD $80.00 74 $5,920.00
26 2105.504 GEOTEXTILE FABRIC TYPE IV SQ YD $8.00 37 $296.00
Trunk Storm Sewer Improvements - Subtotal $2,206,016.00
20% Contingencies $441,200.00
Subtotal $2,647,216.00
30% Indirect Cost $794,160.00
Trunk Storm Sewer Improvements - Total $3,441,376.00
TOTAL ALTERNATIVE 3B $5,896,716.00
Alternative 3b: Temporary Pumping
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:10/19/2020
Permanent
Easement (Acres)
Temporary
Easement (Acres)
Total Easement
Acres)
0.9 0.4 1.3
3.0 1.3 4.3
40.9 0 40.9
0.5 0.2 0.7
7.8 0 7.8
0.5 0.3 0.8
0.7 0.0 0.7
54.2 2.3 56.5
20% Contingencies 10.8 0.5 11.3
65.1 2.7 67.8
Permanent
Easement (Acres)
Temporary
Easement (Acres)
Total Easement
Acres)
0.9 0.4 1.3
3.0 1.3 4.3
40.9 0 40.9
0.5 0.2 0.7
7.8 0 7.8
0.5 0.3 0.8
0.7 0.0 0.7
Easement 54.2 2.3 56.5
20% Contingencies 10.8 0.5 11.3
Total Easement 65.1 2.7 67.8
Permanent
Easement (Acres)
Temporary
Easement (Acres)
Total Easement
Acres)
0.0 0.0 0.0
3.0 1.3 4.3
40.9 0 40.9
0.5 0.2 0.7
7.8 0 7.8
0.5 0.3 0.8
0.7 0.0 0.7
0.0 0.0 0.0
Easement 53.4 1.8 55.2
20% Contingencies 10.7 0.4 11.0
Total Easement 64.0 2.2 66.2
Pond 2164 to Pond 2187
Pond 2164 to Pond 2187
East of Hwy 3 to Pond 2274
Estimated Required Easement
Alternative 1c
Location
Pond 2274 to Pond 2164
Pond 2187
Alternative 1a
Pond 2164
Location
Pond 2274 to Pond 2164
Pond 2187
Shannon Pond to West of Hwy 3
Pond 2274
Pond 2274 to Pond 2164
Pond 2164
Pond 2164 to Pond 2187
Pond 2187
East of Hwy 3 to Pond 2274
Pond 2187 to MCES Interceptor
Shannon Pond to MCES Interceptor
East of Hwy 3 to Pond 2274
Pond 2274
Pond 2274
Easement
Total Easement
Pond 2164
Alternative 1b
Location
Shannon Pond to West of Hwy 3
WSB Project:Shannon and Wachter Pond Outlets Feasibility Study Design By:KJF
Project Location:City of Rosemount Checked By:WCA
WSB Project No:015190-000 Date:10/19/2020
Estimated Required Easement
Alternative 1a
Permanent
Easement (Acres)
Temporary
Easement (Acres)
Total Easement
Acres)
0.8 0.4 1.2
3.0 1.3 4.3
40.9 0 40.9
0.5 0.2 0.7
7.8 0 7.8
0.5 0.3 0.8
0.7 0.0 0.7
54.2 2.2 56.4
20% Contingencies 10.8 0.4 11.3
65.0 2.7 67.7
Permanent
Easement (Acres)
Temporary
Easement (Acres)
Total Easement
Acres)
0.0 0.0 0.0
1.6 0.8 2.4
3.0 1.3 4.3
40.9 0 40.9
0.5 0.2 0.7
7.8 0 7.8
0.5 0.3 0.8
0.7 0.0 0.7
Easement 55.0 2.6 57.6
20% Contingencies 11.0 0.5 11.5
Total Easement 65.9 3.2 69.1
Permanent
Easement (Acres)
Temporary
Easement (Acres)
Total Easement
Acres)
0.0 0.0 0.0
3.0 1.3 4.3
40.9 0 40.9
0.5 0.2 0.7
7.8 0 7.8
0.5 0.3 0.8
0.7 0.0 0.7
Easement 53.4 1.8 55.2
20% Contingencies 10.7 0.4 11.0
Total Easement 64.0 2.2 66.2
East of Hwy 3 to Pond 2274
Pond 2164 to Pond 2187
Pond 2187
East of Hwy 3 to Pond 2274
Alternative 2a
Location
Shannon Pond to East Lake
Biscayne Avenue to Vermillion River
Pond 2164 to Pond 2187
Pond 2187
East of Hwy 3 to Pond 2274
Pond 2164 to Pond 2187
Pond 2187
Pond 2274
Pond 2274 to Pond 2164
Pond 2164
Alternative 2c
Location
Easement
Pond 2274
Pond 2274 to Pond 2164
Alternative 2b
Location
Pond 2164
Shannon Pond to Biscayne Avenue
Total Easement
Pond 2164
Pond 2274
Pond 2274 to Pond 2164
Shannon Pond to 2162
Shannon and Wachter Pond Outlets Feasibility Report
City of Rosemount, MN
WSB Project No. 015190-000 Appendix
APPENDIX C
DWSMA AND UMORE RECLAMATION PLANS
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PM Legend Rosemount
Supply Wells Emergency
Response Areas
Rosemount Boundary Wellhead
Protection Areas
DWSMA
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Moderate Low Figure8 - Drinking WaterSupply
Management AreasCityofRosemountSurface Water
Management Plan 04,000Feet¯1 inch = 4,
G:\MEETINGS\UTILITY COMMISSION\UC Items and Packets\2020\20201123\8.a. Project Update.docxG:\MEETINGS\UTILITY
COMMISSION\UC Items and Packets\2020\20201026\8.a. Project Update.docx
E X E C U T I V E S U M M A R Y
Utility Commission Meeting: November 23, 2020
AGENDA ITEM: City Project Update
AGENDA SECTION:
Executive Director’s
Report
PREPARED BY: Brian Erickson, P.E. Director of Public Works
City Engineer AGENDA NO. 8.a.
ATTACHMENTS: None APPROVED BY: BLE
RECOMMENDED ACTION: None, informational only
BACKGROUND
The 2020 construction season is beginning to wrap up for the season and this year has seen
a significant amount of construction throughout the city. The following list is the current and
planned City of Rosemount projects. There are additional developments that are in early
stages of the process and those will be added as appropriate. Changes since the last report
are shown as strike out for deletions and underlined for additions as well as a bar along the
left margin to indicate the changes.
145th Street Sidewalk Improvements – Scope includes constructing sidewalk and
pedestrian ramps along the north side of 145th Street to the east of Brazil Ave. The
final sections of sidewalk have been completed and this area is open for pedestrian
traffic. Some restoration work remains.Restoration work is completed. This project is
in the close out phase and this will be the last report.
2019 Street Improvement Project – Work is nearly complete with boulevard
restoration as the primary remaining item. No further work is anticipated in 2020. The
scope includes mill and overlay or reclamation of:
Chippendale Avenue from 145th Street W to 160th Street W
Dodd Boulevard from Shannon Parkway to Chippendale Avenue
151st Street W from Shannon Parkway to Chippendale Avenue
Crestone Ave, Claret Ave and Cimarron Ave from CSAH 42 to 151st Street W
2021 Street Improvement Project – Scope includes mill and overlay or reclaim of:
Covington Avenue
Colorado Avenue
Upper 149th Street W from Crandall Avenue to Colorado Avenue
Darling Path from Danbury Avenue to the southern curve
156th Street W from Darling Path to Shannon Parkway
Upper 156th Street W from Darling Path to Danville Avenue
156th Court W.
Dapple Court
Dapple Circle
2
157th Court W.
157th Street W.
Danville Avenue from 156th Street W.to 156th Court W.
Cumberland Avenue
Crocus Avenue
Crocus Court
Crystal Path from Danville Avenue to Shannon Parkway
Crystal Court
Initial planning is and a neighborhood meeting is scheduled for October 8.The
feasibility report has been completed and the Improvement Hearing was held on
November 17, 2020. The City Council then ordered the preparation of plans and
specifications. Construction is planned for 2021.
Autumn Path – Scope includes construction of utilities and paving from Bonaire Path
north approximately 2,500 feet. Construction is planned to restartstarted in October
with utility installation complete this year. Road paving will be completed in 2021;
however, there will be gravel to allow access to the Bella Vista 7th subdivision.
Biscayne Ave – Scope includes construction of utilities and paving between Boulder
Trail and 160th Street (CSAH 46). Extension of sanitary sewer will provide service to
the Biscayne Business Park on the southern end of the project. Final grading and
work on stormwater features remains and will be completed prior to winter. Final
bituminous wear course will be done in 2021. No truck traffic will be allowed until the
final bituminous course is place.
Bonaire Path – Scope includes construction of utilities and paving between Akron
Avenue and Anderson Drive. Additionally, the installation of crossing arms at the
Union Pacific Railroad intersection are in the scope of the project and planned for
2020. Ultimately, the city will request that this intersection become a quiet zone (i.e.
no train horns). Wear course and construction is anticipated to be completed in 2021;
however, that will hinge on Union Pacific completing the necessary crossing work.
Final design for rail improvements was approved by City Council at the February 4 ,
2020 meeting. The next step in this process requires that Union Pacific complete an
agreement document so that all costs are documented and then the work can be put
forward for scheduling. Staff received notice that a draft agreement is in process;
however, because of the lengthy delay by UP the cost estimates expired and are being
updated. Once the agreement is received staff will bring to Council for approval.
Actual construction work by UP remains unscheduled at this time. Because of the
significant delays by Union Pacific no work is anticipated in 2020. Additional
communication with both MnDOT and other Union Pacific staff is being done as well.
Staff has been in contact with the Federal Railroad Administration regarding
application for a quiet zone (QZ). Because of the design, the QZ application is
expected to be approved.
Connemara Trail Extension – Scope includes construction of utilities and paving
from Akron Avenue east approximately 1,300 feet. Contract was awarded and work is
being planned for 2021 due to the significant workload. Some additional work is being
coordinated with the parcel to the east to assist with future development.
3
Deepwoods Court – Scope includes pavement reclamation and minor curb repair
from McAndrews Road south approximately 1,900 feet. Final wear course is
completed and restoration is under way. This project will be completed in 2020.
Ribbon curb will be installed and the residents have agree to pay for the additional
cost. This project is in the close out phase and this will be the last report.
Dunmore Storm Lift Station – Scope includes the construction of a stormwater lift
station in the Dunmore subdivision and connection to existing force main.
Construction is completed. Initial startup and control programming has been
performed. Restoration is underway.
Shannon Pond Outlet Feasibility Study – Scope includes reviewing potential routes
for stormwater outlet at Shannon Pond. Because of the land locked location outlet will
be a significant undertaking. Initial study work was received this summer. Information
from this study will be used to establish future improvements necessary to reduce the
potential for structure flooding. Staff plans a future presentation to the Utility
Commission regarding this work.
The following list is the current and planned developer projects.
Bella Vista 6th – Scope includes construction of utilities and paving from Aulden
Avenue to the cul-de-sac approximately 850’ north east as well as 19 single family
residential (SFR) lots of a planned total 158. In addition, there is a temporary sanitary
sewer lift station that will be installed until trunk sewer is extended at a future date.
Utilities and base course are in place and the lift station construction is complete with
minor punch list items to be corrected. Wear course is planned for 2020 with exact
dates to be established.
Bella Vista 7th – Scope will include construction of utilities and paving from a
temporary connection to the Autumn Path extension (see above) west approximately
1500 feet as well as 26 SFR lots of a planned total 158. This is the final phase of this
development. Construction of utilities is complete and the developer has completed
paving of the base course for 2020.is working on roadway construction.
Biscayne Business Park – Scope includes construction of utilities and paving from
Biscayne Avenue to the cul-de-sac approximately 750’ west as well as 8 commercial
lots. One building is under construction. Paving will be done in 2020.
Caramore Crossing 1st – Scope includes construction of utilities and paving from
Akron Avenue and from Bonaire Path as well as 82 SFR lots of a planned total 177.
This project is in the initial construction stage. Developer has installed utilities from
Akron and is currently working on site grading.
Dunmore 2nd – Scope includes construction of utilities and paving from Caffery Court
as well as 25 SFR lots of a planned total 87. Wear course will be installed in 2020 with
exact dates to be established. Contractor will be required to make repairs to the
stormwater ponds due to poor dewatering practices.
4
Emerald Isle 1st – Scope includes construction of utilities and paving as well as 40
SFR lots of a planned total 151. Grading work and initial utility construction is
complete. Contractor has paved the base course for 2020.
Greystone 8th – Scope includes construction of utilities and paving as well as 56 SFR
lots of a planned total 287. This is the final phase of this development. Wear course
will bewas installed in 2020. with exact dates to be established.
Harmony Parkview 2nd – Scope includes construction of utilities and paving as well
as 26 townhomes. Utilities will be city owned and the streets are private. This project
will also fill temporary stormwater ponding on the east side of MN Hwy 3. Filling of the
temporary ponding is complete. Utility construction has been completed and
townhome construction is underway.
Harmony Villas 2nd – Scope includes construction of utilities and paving as well as 26
townhomes. Utilities are city owned and the streets are private. Utility construction is
complete. Site corrections and building construction is underway.
Meadow Ridge 3rd – Scope includes construction of utilities, paving and a temporary
sanitary sewer lift station as well as 28 SFR lots of a planned total 154. This project is
nearly complete for the season. Lift station will be coming on line before home
construction can be started.
Meadow Ridge 4th – Scope includes construction of utilites and paving as well as 63
SFR lots of a planned total 154. This is the final phase of this development.
Construction is planned for 2021.
Morrison (Downtown redevelopment) – Scope includes redevelopment of the area
west of TH 3 in proximity to Shenanigans. Mixed commercial and apartments are
planned for this area. Utility connections and minor corrections completedbeing
performed.
Prestwick 17th – Scope includes construction of utilities and paving, including the
completion of Addison Avenue to a temporary dead end to the east as well as 26
townhomes. Utilities will be city owned and the streets are private. Wear course will
be installed in 2020 with exact dates to be established.
Prestwick 18th – Scope includes construction of utilities and paving as well as 40
townhomes. Utilities will be city owned and the streets are private. Utilities have been
installed. Wear course will be installed in 2020 with exact dates to be established.
Prestwick 20th – Scope includes construction of utilities and paving as well as 27 SFR
lots. This is the final phase of this development on the west side of Akron Avenue.
Construction is underway and planned for completion this year, with wear course
planned for 2021.
Prestwick 21st – Scope includes construction of utilities and paving as well as 24
townhomes. Utilities will be city owned and the streets are private. Construction is
underway and planned for completion this year.
5
Prestwick 22nd – Scope includes construction of utilities and paving as well as 64
townhomes. Utilities will be city owned and the streets are private. Construction is
underway and planned for completion this year.
Rosemount Woods Expansion – Scope includes construction of 39 additional
manufactured home sites as well as construction of private utility extensions for those
sites. This project is currently under construction. Wear course paving on Brazil
Avenue is complete for 2020.Preparation for improving the northern section of Brazil
Avenue is underway.
The following is the list of Dakota County and MnDOT projects.
CR 73 (Akron Ave) – Scope includes the reconstruction of Akron Avenue from
Bonaire Path to the Rosemount city limit. It also includes the construction of a trail
under pass near Flint Hills Soccer Complex. Finally, it includes pavement
rehabilitation for 124th Court and 121st Street. The entire length of Akron has been
paved and restoration and striping are planned to be completed prior to winter.The
southern end of Akron Avenue between Biscayne and 127th St has been paved. Work
has now shifted to the northern end of the project. Final paving on 121st Street and
124th Court was completed. Greenway trail underpass is nearing completion.
Roundabout Connemara Trail/Diamond Path – Scope preliminary engineering for
the construction of a roundabout at this intersection. This project is planned for
construction in 2022. Preliminary design work nearing completion.
CSAH 42/CR 73 (Akron Ave) Signal – Scope calls for installation of a traffic signal at
the intersection of CSAH 42 and CR 73 (Akron Ave) to address the increase in traffic
at this intersection. This project is planned for construction in 2021. Final design work
is nearly complete, and Dakota County has the project out for bids currently.intends to
bid this project by the end of 2020. Design will include an extension of water main
south to service possible future development. City of Rosemount, Dakota County,
Dakota County Technical College and the University of Minnesota continue to work in
partnership to complete this project. Review of possible road and water main
extension is in progress to assist with potential future development.
CSAH 42 Visioning Study – This is a study that will look at nearly the entire length of
CSAS 42 starting at the western county line (Burnsville) and ending at MN Trunk
Highway 52. Future open houses and public engagement opportunities will be
promulgated as they are established. At this time most public engagement will be via
on-line comments and updates.
CSAH 46 Corridor Study and Preliminary Engineering – This is a study that will
look at the section of CSAH 46 from Minnesota Trunk Highway 3 to CSAH 48 in
Coates. The scope of work anticipated is right of way acquisition to support expanding
the highway to a divided four-lane. This is a high priority project for Dakota County
and since a portion of this is within Rosemount city limits a portion of the cost would be
carried by the city. This study will assist with quantifying those costs. Initial survey
work is completedunderway.
6
Mississippi River Greenway – Scope includes the reconstruction of a portion of Pine
Bend Trail to allow for the completion of the Dakota County trail connection from St.
Paul to Hastings. This work will be funded by Dakota County. Additionally, the section
of Pine Bend Trail between TH 55 and the reconstructed section will be reclaimed at
city cost. This work is planned for 2021. Dakota County is in the process of securing
agreements with the rail road to allow for the trail crossing.
TH 55 Safety Improvements – Scope includes improvements along Minnesota Trunk
Highway 55 (TH 55) by adding a left turn lane to Doyle Path and increasing the truck
acceleration lane at the rail road crossing. The Toward Zero Deaths (TZD) program is
leading a working group for this project.
2019 Well 7 Well 8 Well 9 Well 12 Well 14 Well 15 Well 16 Rural 1 Rural 2 2020 Total 2019 Total % Change 2019 2020 DiffJan 8,700 10,600 12,148,300 17,982,600 5,906,400 13,400 19,000 2,470,200 2,817,100 41,376,300 47,443,500 -12.8% 0.45 0.97 0.52Feb 0 6,263,900 1,123,500 2,228,500 18,490,900 298,100 8,132,000 2,280,600 2,308,100 41,125,600 43,128,500 -4.6% 2.57 0.58 -1.99Mar 0 2,238,400 11,390,400 0 11,448,200 3,176,800 8,894,000 2,384,800 2,716,000 42,248,600 37,209,200 13.5% 2.00 2.41 0.41Q1 Total 8,700 8,512,900 24,662,200 20,211,100 35,845,500 3,488,300 17,045,000 7,135,600 7,841,200 124,750,500 127,781,200-2.4%5.02 3.96-1.06Apr 0 24,815,900 0 21,800 0 22,004,400 0 2,692,000 2,919,90052,454,00047,245,000 11.0% 3.91 1.80 -2.11May05,037,000 31,405,400 0 32,666,200 3,694,100 1,261,000 2,369,200 2,633,10079,066,00062,650,200 26.2% 6.68 4.85 -1.83Jun0 8,176,300 2,077,700 49,034,100 2,453,400 39,669,200 14,054,000 2,020,900 2,556,700 120,042,30096,501,900 24.4% 2.72 6.72 4.00Q2 Total 0 38,029,200 33,483,100 49,055,900 35,119,600 65,367,700 15,315,000 7,082,100 8,109,700 251,562,300 206,397,10021.9%13.31 13.370.06Jul12,500 11,846,700 25,731,000 27,445,400 36,012,100 24,489,000 13,224,000 2,169,900 2,211,600 143,142,200111,123,700 28.8% 6.48 3.19 -3.29Aug4,900 5,257,300 6,324,700 39,268,200 28,077,100 36,361,300 21,880,0002,304,100 2,273,600 141,751,200118,502,700 19.6% 6.28 3.98 -2.30Sep0 31,786,200 13,106,400 21,852,500 28,497,300 8,079,800 8,674,000 2,365,300 2,473,000 116,834,50089,200,600 31.0% 3.92 0.88 -3.04Q3 Total 17,400 48,890,200 45,162,100 88,566,100 92,586,500 68,930,100 43,778,000 6,839,300 6,958,200 401,727,900 318,827,00026.0%16.68 8.05-8.63Oct 0 962,900 330,200 18,159,400 986,800 39,200,400 8,560,000 2,455,000815,50071,470,20042,647,000 67.6% 4.05 2.40 -1.65Nov038,993,100 -100.0% 2.28 -2.28Dec045,152,900 -100.0% 1.83 -1.83Q4 Total 0 962,900 330,200 18,159,400 986,800 39,200,400 8,560,000 2,455,000 815,500 71,470,200 126,793,000-43.6%8.16 2.40-5.76Total 26,100 96,395,200 103,637,600 175,992,500 164,538,400 176,986,500 84,698,000 23,512,000 23,724,600 849,510,900 779,798,3008.9%43.17 27.78-15.39Average/Mo2,610 9,639,520 10,363,760 17,599,250 16,453,840 17,698,650 8,469,8002,351,200 2,372,460 84,951,090 64,983,192 30.7%Average/Day86 316,050 339,795 577,025 539,470 580,284 277,698 77,089 77,786 2,785,282 2,136,434 30.4%849,510,900 695,652,300 22.1% 43.17 27.78 -15.392020 Well Pumping RecordYear To-Date
G:\MEETINGS\UTILITY COMMISSION\UC Items and Packets\2020\20201123\8.c. Action Items & Issues List.docx
E X E C U T I V E S U M M A R Y
Utility Commission Meeting: November 23, 2020
AGENDA ITEM: Action Items / Issues List
AGENDA SECTION:
Executive Director’s
Report
PREPARED BY: Brian Erickson, P.E. Director of Public Works
City Engineer AGENDA NO. 8.c.
ATTACHMENTS: None APPROVED BY: BLE
RECOMMENDED ACTION: None, informational only
BACKGROUND
Utility Commissioners requested that staff provide updates on the following items for
meetings going forward.
MET Council Well Assessment – Staff will be reviewing this information over the
winter to establish the need for expanding the current well system.
Smart Meter Update – Staff has been in contact with one neighboring community to
discuss their experiences with moving to a ‘smart meter’ program. Approximately 90%
of the meters have been changed and one of the benefits at this point is a knowledge
of leaks in the system downstream of the meter which allowed the property owner to
be alerted make repairs. In addition, the new technology eliminates moving parts on
the meters. As time permits, staff will work to establish a meter replacement program
that updates existing meters to smart meters.
Tour of a Water Tower – Due to concerns regarding the current pandemic and with
winter storage now at the towers, staff would recommend postponing a water tower
tour until spring of 2021 at the earliest.
Five Year Pond Maintenance Plan – Maintenance plan will be presented to the
Commission at future meeting as a separate agenda item.
Water/Stormwater Rebate Update (quarterly) – Next update will be December 2020.