Search for a News Release

Press/Media inquiries:

DNR News Releases

Meeting to discuss Green Valley and Thayer Lake water quality improvement plans

  • 10/26/2017 11:32:00 AM
  • View Count 2955
  • Return

CRESTON – Iowans interested in the results of DNR studies to improve water quality in Green Valley and Thayer lakes in Union County can attend a meeting Nov. 8. Citizens are encouraged to bring their questions and ideas to improve the lakes to the meeting for discussion.

Green Valley Lake is on the state’s list of impaired waters for high levels of algae, low levels of dissolved oxygen, and low water clarity. Thayer Lake is on the impaired waters list for high levels of algae and low water clarity. The studies, or DNR water quality improvement plans, show how these problems are caused by too much phosphorus in the lakes. The problems impact recreation on the lakes and aquatic life.

The plans explore the amounts and sources of phosphorus entering the lakes and offer potential solutions to reduce those levels and work toward fixing the problems. The documents are designed as a guide for local resource agencies, partners, stakeholders and residents to improve the lakes. Staff from the DNR’s Watershed Improvement Program will be on hand to deliver a presentation and answer questions.

The Nov. 8 meeting will be held from 6 to 7:30 p.m. at the Southwestern Community College, 1201 W. Townline St. in Creston in Room 124 of the Performing Arts Center. Those not able to attend the public meeting can receive more information at and can submit comments on the plans by Nov. 27 via:


Mail:  Jeff Berckes, care of Iowa DNR, Wallace State Office Building, 502 E. Ninth St. Des Moines, Iowa 50319

After gathering Iowans’ comments, the DNR will forward the final plans, also called by its technical name of Total Maximum Daily Load (TMDL), to the U.S. Environmental Protection Agency for approval.