HomeMy WebLinkAbout3.b. Comprehensive Stormwater Management PlanCITY OF ROSEMOUNT
EXECUTIVE SUMMARY FOR DISCUSSION
COMMITTEE OF THE WHOLE: November 12, 2003
FAGENDAITEM: Comprehensive Stormwater Management
Plan Update
AGENDA SECTION:
Update
PREPARED BY: Andrew J. Brotzler, P.E., City Engineer
AGENDA NO. 3.130.
ATTACHMENTS: None
APPROVED BY:
In 2000, the City of Rosemount initiated the preparation of an update to the City's 1998
Stormwater Management Plan. The development of an Update to the 1998 Stormwater
Management Plan was initiated to address several items as follows:
1. Stormwater Outlet for the City of Rosemount
Currently, the City of Rosemount does not have a stormwater outlet from the corporate
boundary. Stormwater is managed within the corporate boundary through the use of
stormwater retention ponds and infiltration basins. As part of the City's 1998 Stormwater
Management Plan, a stormwater outlet south to the Vermillion River was proposed to be
constructed.
During the Metropolitan Council Environmental Services (MCES) planning process for
the expansion of their Empire Wastewater Treatment Plant (WWTP) and proposed
increase in discharge to the Vermillion River, it was determined that an increase in
discharge to the Vermillion River by either the WWTP or the City of Rosemount would
not be acceptable due to the sensitivity of the Vermillion River. A significant portion of
the Vermillion River has recently been designated as a protected trout stream by the
Minnesota Department of Natural Resources.
With this knowledge of the sensitivity of the Vermillion River and increasing restrictions
for discharge of treated effluent and also stormwater runoff to the Vermillion River,
alternatives for the construction of a stormwater outlet from the City of Rosemount were
investigated.. The Comprehensive Stormwater Management Plan Update includes the
development of a stormwater outlet from the City of Rosemount, east to the Mississippi
River.
2. Inventory of Land and Water Resources
As part of the Comprehensive Stormwater Management Plan Update, additional
information has been developed and included as part of the Update. In 1999, the City of
Rosemount completed a Wetland Protection and Management Plan which has been
included in the Update.
3. Goals and Policies
A major portion of the Comprehensive Stormwater Management Plan Update is the
development of goals and policies as outlined in Section IV of the Update. These newly
developed goals and policies address the need to effectively manage stormwater runoff
and improve water quality while limiting public capital expenditures to control excessive
volumes and rates of runoff. The major policy change in the Update is the reduction of
allowable discharge limits from newly developed properties.
4. Assessment of Problems and Corrective Actions
Following the "2000 storm" which resulted in a significant amount of localized flooding,
the Update includes an assessment of problem areas and recommended actions to address
these areas. Included in the Update is a capital improvement and prioritization plan for
these areas.
Through the development and completion of the. Comprehensive Stormwater Management Plan
Update in the spring of 2002, a considerable amount of input from the Rosemount Utility
Commission was incorporated into the Update. In July 2002, the Update was distributed for a
60 -day review /approval period. Following this review period, review comments that were;
received were addressed and responded to. As the majority of the comments were received from
Dakota County acting as the Watershed Management Organization, Staff committed a significant
amount of time meeting with Dakota County and addressing their comments.
Following a final meeting with Dakota County Staff in May 2003, final responses were prepared
and the Comprehensive Stormwater Management Plan Update was submitted to the newly
formed Vermillion River Watershed Joint Powers Organization ( VRWJPO). As you are aware,
the VRWJPO was requested to take official action on the City's Comprehensive Stormwater
Management Plan Update in accordance with State Statue. At the October 23 VRWJPO Board
meeting, no action was taken by the board with regards to the City's plan. Based on the City
Attorney's interpretation of State Statute, it is the position of Staff that the City of Rosemount's
Comprehensive Stormwater Management Plan Update has been approved by the Vermillion
River Watershed Joint Powers Organization by virtue of non - action within the constraints of the
sixty (60) day rule.
At this time and with the interpretation that the Comprehensive Stormwater Management Plan
Update has been approved by the Vermillion River Watershed Joint Powers Organization, the
next step in the process is for Council to consider the adoption of the Comprehensive Stormwater
Management Plan Update. Pending adoption of the Update by Council, Staff will work towards
the determination of fee adjustments to reflect capital improvement costs identified in the
Update.
NOTES: For discussion only.