Squaw Lake TMDL

Purpose

This TMDL report is for Squaw Lake, located in the Star Prairie Township, St. Croix County, Wisconsin, in the St. Croix River Basin. The lake is geographically located across portions of Sections 8, 9 and 17 of T31N, R18W of the USGS Somerset North Quadrangle.

Objective

Squaw Lake is listed on the Wisconsin Department of Natural Resources’ (WDNR) 1998 303(d) List of Impaired Waters. The Lake is nutrient(phosphorus (P)) impaired as a result of agriculture, internal loading and local land use, is listed as a medium priority water and external load sources are nonpoint source (NPS)dominated. shoreline. In addition, trophic conditions in the lake li The designated use for Squaw Lake is defined as a full recreation, warm water sport fishery water. Water quality in Squaw Lake is generally poor to very poor, falling in the eutrophic to hypereutrophic category (see “Nonpoint source control Plan for the St. Croix Lakes cluster Priority Watershed Plan” (PWP) report ). Summer lake phosphorus levels are about 270 ug/l. Mats of filamentous algae cover a large portion of the lake bottom and summer algal blooms result in foul odors and an unsightly build-up of algae biomass on the mit rooting depth for emergent vegetation used by the resident fish populations. As a result, these impairments impact the recreational/ aesthetic value of the lake and stress sport fish populations.

QA Measures

Run Project Summary Report

TMDL/303d Projects
Implement TMDL
Squaw Lake TMDL
2006
Active
 
Reports and Documents
Squaw Lake, St. Croix County- Critical Habitat Designation
Squaw Lake, St. Croix County- Critical Habitat Designation
Squaw Lake, St. Croix County- Critical Habitat Designation
Condition Assessment Report
Condition Assessment Report
Squaw Lake TMDL
Final TMDL Report
Final TMDL Report
AIR PHOTO OF SOUTH END OF SQUAW LAKE TAKEN IN OCTOBER 1991
 
Activities & Recommendations
TMDL Implementatoin
This TMDL report is for Squaw Lake, located in the Star Prairie Township, St. Croix County, Wisconsin, in the St. Croix River Basin.
 
Waters