Minnesota's Impaired Waters and TMDLs
TMDL Project: Crystal Lake - Excess Nutrients
Background
Crystal Lake is an 89-acre basin located in the Shingle Creek Watershed. The lake’s drainage area is 1,237 acres of fully developed urban and suburban land almost entirely in the city of Robbinsdale, with some contribution from the city of Minneapolis. The Minnesota Pollution Control Agency placed Crystal Lake on the 2002 impaired waters list for aquatic recreation because it exceeds the water quality standard for nutrients. Excess nutrients such as phosphorus from stormwater runoff create poor water quality conditions causing frequent summer algal blooms, which limit recreational activities.
The goal of the Crystal Lake Total Maximum Daily Load (TMDL) report is to quantify the pollutant reductions needed for Crystal Lake to meet state water quality standards. The MPCA is partnering with the Shingle Creek Watershed Management Commission and their consultant, Wenck Associates, Inc. to complete both the Crystal Lake TMDL report and implementation plan.
Map and location
Crystal Lake is in the city of Robbinsdale in the northwestern Twin Cities metro area, Hennepin County. It lies in the Mississippi River - Twin Cities watershed in the Upper Mississippi River Basin.
TMDL report and implementation plan
Final TMDL Report- EPA Approval Letter (March 25, 2009)
- Factsheet
- TMDL Implementation Plan (approved by MPCA on July 7, 2009)
Other cocuments
- None.
Meetings and events
See the TMDL Meetings, Events and News page for notices of general interest and event-related information on impaired waters/TMDLs.
Links
- Local Sponsor: Shingle Creek Watershed Management Commission
- Consultant: Wenck Associates
- MPCA: Upper Mississippi River Basin
- MPCA: Minnesota’s Impaired Waters and TMDL
Information contact
Barb Peichel
TMDL Project Manager
Minnesota Pollution Control Agency
520 Lafayette Road
St. Paul, MN 55155
651-757-2646
barbara.peichel@state.mn.us