GRANT COUNTY, WA — The Grant County Health District (GCHD) has lifted the water quality advisory for the Pelican Horn area of Moses Lake. The advisory was issued on July 10, 2025, following a sewage spill in the area.
Recent lake water testing confirms that E. coli levels have returned to levels considered normal for Moses Lake.
E. coli is a type of fecal coliform bacteria found in the feces of people, livestock, pets, and wildlife. While coliforms are common in lakes and other bodies of water, increased exposure may cause illness.
Incident Overview
On Monday, July 7th at 6:30 a.m., a sewage line was found broken near the lake’s shoreline on the 1300 block of Lakeside Drive. The City of Moses Lake responded quickly, shutting off the wastewater line and activating emergency protocols. The damaged line was successfully repaired within a week. To learn more about the repair efforts, visit https://www.cityofml.com/CivicAlerts.aspx?AID=1420.
Throughout the incident, GCHD and the City of Moses Lake conducted regular water testing. Testing results have shown steady improvement over the past several days, with levels now returning to the baseline typically seen in Moses Lake.
The team at GCHD would like to extend our appreciation to the City of Moses Lake for their prompt action in repairing the wastewater line and their assistance with lake water testing.
Stay Informed
GCHD is committed to delivering timely, accurate information to help our community make informed decisions about their health and safety. Follow Grant County Health District on Facebook to stay informed about future health advisories.
For more information contact Lexi Smith, GCHD Public Information Officer at (509) 770-4194 or lsmith@granthealth.org OR Lynne Lynch, City of Moses Lake Public Information Officer (509) 764-3706 or llynch@cityofml.com
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