HomeMy WebLinkAbout6.a. 2017 MS4 Scope of Services
Utility Commission Meeting: April 17, 2017
E X E C U T I V E S U M M A R Y
AGENDA ITEM: 2017 MS4 Scope of Services AGENDA SECTION:
New Business
PREPARED BY: John Morast, PE, Interim Director of
Public Works / City Engineer
AGENDA NO. 6.a.
ATTACHMENTS: 2017 MS4 Scope of Services
APPROVED BY: LJM
RECOMMENDED ACTION: Recommend City Council Approve the 2017 MS4 Scope
of Services
ISSUE
Staff is requesting Utility Commission review of the 2017 MS4 Scope of Services and a recommendation
for City Council approval.
BACKGROUND
Attached for Utility Commission review is the proposed MS4 Scope of Services from WSB &
Associates, Inc. This is the fourth year for which WSB has provided services to assist City staff with
implementation and administration of the MS4 General Permit requirements. The 2017 Scope of
Services includes tasks for general program management, Stormwater Pollution Prevention Plan
(SWPPP) support and implementation, and stormwater quality and elevation monitoring. These
tasks are essential components of our MS4 General Permit.
The estimated fee of $34,800 for the proposed MS4 activities will be funded from the City’s Storm Water
Utility Fund.
SUMMARY
Staff is requesting that the Utility Commission recommend City Council approval of the 2017 MS4
Scope of Services.
G:\MS4 Permit\Council and Commission Items\20170417 UC MS4 Scope of Services.docx
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G:\Group Data\WATER RESOURCES\Proposals\Rosemount\LTR PROP- jmorast -Rosemount Annual MS4 Services_Year 4.docx
April 4, 2017
Mr. John Morast, PE
Interim Director of Public Works / City Engineer
City of Rosemount
2875 145th Street West
Rosemount, MN 55068-4997
Re: Estimate of Professional Services Fee
Program Support and Implementation for the City’s MS4 General Permit – Year 4
Dear Mr. Morast:
Attached for your review and approval is our proposed scope of services, fee, and schedule for program
support and implementation for the City of Rosemount’s Municipal Separate Storm Sewer System (MS4)
General Permit – Year 4. WSB has worked closely with the City staff to update their MS4 program and
bring the required program changes into compliance from 2014 through 2016. Moving forward, we are
proposing to complete the work as detailed in the attached scope to ensure that the City of Rosemount’s
MS4 program remains in compliance in 2017. The estimated total Project Cost, including professional
service fees and direct billing for monitoring line items, is estimated to be $34,800.
If you are in agreement with this proposal, please sign where indicated and return one copy to me.
Please do not hesitate to contact me at 763-231-4845 with any questions.
Sincerely,
WSB & Associates, Inc.
Bill Alms, PE
Water Resource Project Manager
Attachment
Cc: Andy Brotzler, Mitch Hatcher, Meghan Litsey, Linnea Henkels (WSB)
ACCEPTED BY:
City of Rosemount, MN
Name
Title
Date
G:\Group Data\WATER RESOURCES\Proposals\Rosemount\LTR PROP- jmorast -Rosemount Annual MS4 Services_Year 4.docx
SCOPE OF ENGINEERING SERVICES
FOR
PROGRAM SUPPORT AND IMPLEMENTATION
FOR THE CITY’S MS4 GENERAL PERMIT – YEAR 4
CITY OF ROSEMOUNT PUBLIC WORKS
ROSEMOUNT, MN
SCOPE OF ENGINEERING SERVICES
Task 1 – Project Management (Estimated Fee $1,000)
Project management will be performed throughout the course of this project. The following subtasks are
included as part of Project Management:
1.1 Project update forms will be submitted to the City on a monthly basis outlining budget status,
work completed to date, and project tasks remaining.
1.2 Attend project update meeting with City staff. This will include developing agendas, preparing
handouts and graphics, and attending meeting.
Deliverables: Twelve (12) Monthly Project Update forms, One (1) Meeting with City staff and Utility
Commission to discuss final deliverables of Stormwater Pollution Prevention Program and Monitoring
results.
Task 2 – Stormwater Pollution Prevention Plan Support and Implementation – Year 4 (Estimated
Fee $12,700 + $89/hour for Environmental Compliance Inspections)
As part of this task, WSB will work with City staff to implement the annual requirements of the MS4 permit
to ensure the City of Rosemount’s MS4 program remains in compliance in Year 4. The implementation of
these specific requirements has been divided into the following seven subtasks:
2.1 General Program Support
As part of this task, the WSB Environmental Compliance Project Manager will provide staff
time in Rosemount as needed to assist staff with the implementation of the updated
Stormwater Pollution Prevention Program (SWPPP), which was developed in Year 1. The
WSB Environmental Compliance Project Manager will also provide a quarterly written
summary to the City outlining the following items:
Tasks for staff members to complete as part of the program implementation
Any updates from the MPCA, LMC, MCSC, and VRWJPO that may offer benefits or
impacts to the City’s MS4 Permit Activities.
2.2 Annual Report & Annual Meeting:
The MS4 permit requires the City of Rosemount to submit an annual report detailing their
MS4 permit activities by June 30 of each calendar year. WSB will assist City staff with the
completion and submittal of the 2016 Annual Report. In addition, WSB will work with City staff
to facilitate one annual SWPPP meeting. City staff will provide responses to public comments
received.
2.3 Staff Training
The MS4 permit requires annual training of your municipal staff to communicate to all City
staff how their role may be impacting stormwater. Development of a comprehensive training
program is critical to the foundation of a compliant MS4 program. WSB will complete a 30-
Scope of Engineering Services
April 4, 2017
Page 2
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minute training session for Public Works, Engineering, and Building Inspections staff, which
will include information on illicit discharge detection and elimination, construction site best
management practices (BMPs), and good housekeeping practices. In addition, we will
provide materials from the training for make-up sessions or seasonal employees
commensurate with the requirements of the MS4 Permit.
2.4 Visual Pond and Outfall Inspections:
WSB will provide a staff member to conduct visual inspections of 20% of the City-owned
ponds and outfalls during Year 4. This 20% pond and outfall inspection schedule will allow
the City to meet the requirements to inspect all ponds and outfalls by the end of the five-year
permit cycle. Inspections will be documented in accordance with the procedures established
in Year 1 of the SWPPP Development and Implementation Plan.
2.5 GIS Updates
In 2015, the City implemented a Stormwater Asset Management Program (SWAMP) to assist
with scheduling and budgeting inspection and maintenance activities, tracking Total
Suspended Solids (TSS) and Total Phosphorus (TP) pollutant loadings, and to ultimately
meet the City’s MS4 permit requirements. WSB proposes to complete GIS updates and load
additional ponds, outfalls, and structural stormwater BMPs into SWAMP to aid recordkeeping,
utilize SWAMP 2.0 features, and meet the MS4 permit requirements.
2.6 Bathometric Pond Inspections
This task consists of inspecting/surveying eight (8) ponds consistent with the SWAMP
inspection prioritization. The SWAMP application will be updated to reflect the inspection
results. Findings from the inspections will be used to develop maintenance
recommendations. If inspections indicate maintenance is necessary, a pond review memo
may be needed to identify the extent of maintenance. An additional scope can be provided to
generate pond maintenance design memos for those basins identified as requiring
maintenance based on inspection results.
2.7 Environmental Compliance Inspections:
WSB will provide an Environmental Compliance Specialist to complete weekly environmental
compliance inspections for new grading permits issued for development projects within the
City. This Specialist will manage the inspection and forward any results to the project owners,
any pertinent construction professionals, and the City of Rosemount upon request. The
inspection will be visual and documented for NPDES and City Ordinance (Title 10, Chapter 1,
Section 12: Erosion and Sediment Control) compliance purposes. WSB will prepare an
inspection report detailing the inspection results. The compliance deficiencies will be
documented with photographs and site plan map locations to indicate any deficiencies. All
reports will be provided to the owner(s) within 24 hours of inspection completion. WSB will
complete the above tasks for an hourly cost of $89 per hour, including mileage to and from
the project site. The cost associated with this task has traditionally been a pass-through cost
to the development projects.
Deliverables: Four (4) quarterly General Program Support Meetings with City staff, assistance to City
staff with Annual Report, support for one (1) General Permit Annual Meeting, deliver one (1) MS4-related
training for City staff, pond and outfall inspection summary with maintenance recommendations to
achieve 20% inspection schedule, Updated storm sewer and pond Inventory GIS files, eight (8)
bathometric pond survey maps uploaded into SWAMP, and copies of weekly inspection reports from the
environmental compliance inspections for selected developments and projects.
Scope of Engineering Services
April 4, 2017
Page 3
G:\Group Data\WATER RESOURCES\Proposals\Rosemount\LTR PROP- jmorast -Rosemount Annual MS4 Services_Year 4.docx
Task 3 – Additional MS4 Program Services – Water Quality Monitoring Program (Total Estimated
Fee: $17,450, Sample Testing Cost: $3,650)
This water quality monitoring program is included as an additional MS4 program service because it will be
used to fulfill multiple program requirements in minimum control measures (MCMs) 5 and 6 related to
inspection, long-term operation, and maintenance of infiltration BMPs. The water quality monitoring
program provides the City with empirical data that will assist with:
Guiding upcoming Watershed and City Stormwater Plan Updates and discussions with observed
runoff volumes and infiltration and evaporation rates.
Identifying potential areas to receive regional volume reduction credit thought stormwater reuse
applications.
Validating pond treatment efficiencies from the SWAMP program with sampled Total Suspended
Solids and Total Phosphorus concentrations.
Supporting conclusions in the City’s Non-Degradation Study with observed infiltration and
evaporation data.
Creating a baseline for discharge volumes and pollutant loading assumptions of possible future
TMDLs in the Vermillion River and Mississippi River.
Assessing winter pollutant concentration associated with snowmelt runoff.
As part of this task, WSB will evaluate stormwater runoff volume reduction and pollutant removal
performance of selected basins. This water quality monitoring program is intended to align with the MS4
General Permit cycle. The monitoring equipment purchased by the City in 2014 and 2016 will be utilized
throughout the five-year period. Data will be processed annually and a final report will be complied at the
end of Year 5 period.
3.1 Collect Surface Water Elevation and Rainfall Data
The objective of this task is to monitor stormwater runoff volume reduction capabilities
through infiltration and evaporation, within selected basins in the City. WSB will install
continuous surface water level loggers to provide hourly water elevations during the
monitoring period. Water level data will be used to develop evaporation and infiltration rates
and rainfall to runoff ratios. Additionally, WSB will install two (2) continuous rainfall gauges
within the City which will provide the date, duration, and intensity of each rainfall event. The
basins selected to be monitored and rain gauged locations are identified in Figure 1. The
components of this task include:
Install eleven (11) continuous surface level loggers within selected basins and perform
monitoring from April through October.
Install two (2) continuous rainfall gauges.
Monthly maintenance and data downloads to ensure proper operation.
3.2 Collection of Water Quality Samples
The objective of this task is to determine pollutant loading from watersheds with various land
uses within the City.
Pollutant Loading – As part of this task, WSB will collect water samples from ten (10)
selected basins as part of routine data collection activities to determine polluta nt
concentrations. Sampling locations are identified in Figure 1.
Scope of Engineering Services
April 4, 2017
Page 4
G:\Group Data\WATER RESOURCES\Proposals\Rosemount\LTR PROP- jmorast -Rosemount Annual MS4 Services_Year 4.docx
Water samples will be collected monthly, for an estimated nine (9) months. Two (2) sampling
events will be completed during winter months of 2018 to assess snowmelt pollutant
concentrations from the six (6) locations identified on Figure 1. The remaining seven (7 )
samples will be collected from April through October for all ten (10) locations. The samples
will be analyzed for the following parameters for all events:
Total Phosphorus ($12)
Ortho – Phosphate ($10)
Total Suspended Solids ($10)
Chloride ($17)
3.3 Annually Processing Monitored Data
As part of this task, data collected during the monitoring period will be analyzed to determine
interim infiltration and evaporation rates, rainfall to runoff ratios, reuse suitability assessment,
and to identify if there are any changes that need to be made to the monitoring protocol.
3.4 Final Report
A final report will be prepared and presented at the end of the five-year monitoring/permit
cycle that will discuss data analysis, five-year data trends for infiltration and basin water
quality and recommendations for infiltration basin design and life span
Deliverables: One (1) Technical Memo summarizing monitoring results including tables and figures
representing data collect in 2017.
Time Schedule
It is anticipated that the work outlined above will be completed from April 2017 through April 2018.
Scope of Engineering Services
April 4, 2017
Page 5
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Total Estimated Engineering Fee
This proposal outlines the work needed to complete the tasks associated with the City’s MS4 Program.
The total estimated hourly cost for the professional services for program support and implementation of
the City’s MS4 General Permit –Year 4, Task 1-3 described above is $31,150 with a direct billing amount
of $3,650 for monitoring program services. The table below details costs for each task described in this
scope of services.
Task No Description Estimated Fee Direct Billing
Task 1 – Program Management
1.1 Monthly Project Updates $750
1.2 Final Deliverables Meeting $250
Subtotal for Task 1 $1,000
Task 2 – Stormwater Pollution Prevention Plan Support and Implementation – Year 4
2.1 General Program Support $2,200
2.2 Annual Report & Annual Meeting $800
2.3 Staff Training $400
2.4 Visual Pond & Outfall Inspections $3,100
2.5 GIS Updates $2,200
2.6 Bathometric Pond Inspections $4,000
2.7 Environmental Compliance Inspections TBD ($89/hr)
Subtotal for Task 2 $12,700
Task 3 - Additional MS4 Program Services – Water Quality Monitoring Program
3.1 Collect Surface Water Elevation and Rainfall Data $6,750
3.2 Collection of Water Quality Samples $4,200 $3,650
3.3 Annually Processing Monitored Data $6,500
3.4 Final Report Future Scope
Subtotal for Task 3 $17,450 $3,650
Total for Project $31,150 $3,650
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Location #5 (KL-1716)Surface water monitoringWater Quality Sampling
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Location #7 (KL-1865)Surface water monitoringWater Quality Sampling
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Location #5 (KL-1716)Surface water monitoringWater Quality Sampling
Location #6 (EP-578)Surface water monitoringWater Quality Sampling
Location #7 (KL-1865)Surface water monitoringWater Quality Sampling
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2011, 2014-2016 Monitored Ponds (10)Monitored Pond New 2016City Boundary
This Evaporation and Infiltration MonitoringProgram has been developed to furtherestablish evaporation and infiltration thatoccur within the City. In addition, this studyis performed to verify the estimatedstormwater abstractions and runoff volumesthat were developed for the City'sNondegradation Plan.
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Please note that the basins selected for monitorng have beenupdated from past monitoring efforts in order to provide a broaderrepresentation of evaporation and infiltration rates and runoff ratios