D. Local Water Management Plan UpdateCity of Chanhassen
Local Stormwater Management Plan Update
Planning Commission
April 3, 2018
What is it? A document that sets forth the City's goals, policies, and actions to manage
stormwater and protect and improve water resources in the city.
Your role? The Planning Commission has already reviewed and provided input into the draft
Goals at the October 3, 2017 Meeting. Current role to review and provide input
to the Draft Plan. The Draft Plan can also be found on the front page of the City
website under City News.
http://www.ci.chanhassen.mn.us/CivicAlerts.aspx?AID=402
Why do this? The update is required by State Statute, completed every 10 years or completed
within two years following the update of a watershed management plan. In
addition, it is good and responsible infrastructure and resource management and
stewardship. The current Plan expired in 2016.
What is in it? Contains three major sections: an Inventory, Goals and Policies, and an
Implementation Plan.
if Inventory
• Inventory of physical environment and water resources
• Updated stormwater modeling
• Condition assessment: water quality, stream conditions, pond inventory,
wetland data
• Information from other studies or reports
o TMDLs, Use Attainability Analyses
o Watershed District requirements
o NPDES - stormwater permit requirements
o Wetland inventory
o Bluff Creek Watershed Natural Resources Management Plan
o Wellhead protection plan
o Other agency requirements
2) Goals and Policies
• Holistic water management—stormwater, lakes and streams, wetlands,
groundwater
City of Chanhassen Local Water Management Plan Update
April 3, 2018
3) Implementation Plan
• Programs, including education and outreach program
• Capital projects
• Maintenance actions
• Ordinance revisions
• Assessment of adequacy of funding
What is the timeline?
Feb 1 = Begin 60 day comment period for the four Watershed Management Organizations
(WMO's) and 45 day comment period Met Council and two Counties
March 19 = End 45 day comment period for Met Council
W'e are
here March 15 = Riley Purgatory Bluff Creek Watershed District requests comment period extension
May 4 = End comment period for WMO (extension granted)
???? = Comment response and negotiation period with WMO's. The WMO comment
response/negotiation period is undefined in State statute. It ends when WMO's are willing to
approve LWMP
???? = Begin 120 day adoption and implementation period of LWMP by City. Date dependent on
WMO Plan approval.
???? = Begin 180 day standards and ordinances amendment period. Date dependent on WMO
Plan approval.
City of Chanhassen Local Water Management Plan Update
April 3, 2018