
E. coli bacteria can cause serious gastrointestinal illness when water is accidentally swallowed
Clark County Public Health has issued a swim beach warning at Battle Ground Lake after routine testing showed elevated levels of E. coli bacteria, which can cause serious gastrointestinal illness when water is accidentally swallowed.
Test results for one of five water samples collected at Battle Ground Lake on Tuesday, May 28 showed elevated levels of E. coli bacteria. The other samples had bacteria levels within acceptable water quality standards.
Warning signs are being posted at the lake. While the warning is in place, Public Health advises against swimming and wading, especially for young children who are more likely to accidentally swallow water. People who have contact with the water at the swim beach should rinse off after.
Public Health will collect additional water samples Monday, June 3. The results of those tests will determine the next steps, which could include lifting the warning or closing the beach to swimmers.
Park visitors may continue to catch and consume fish caught in the lake but should thoroughly clean all fish and equipment. Fish should be cooked and not eaten raw.
Public Health routinely monitors water quality at three designated swim beaches throughout the summer: Klineline Pond, Vancouver Lake and Battle Ground Lake. Test results and information about current advisories are available on the Public Health website.
Information about E. coli
E. coli is a common kind of bacteria that lives in the intestines of animals and people. The presence of E. coli in Battle Ground Lake water indicates that the water may contain bacteria found in animal or human feces. Some of these bacteria can cause severe gastrointestinal illness.
Depending on the cause, people with gastrointestinal infections may experience fever, abdominal pain, nausea, vomiting and/or diarrhea beginning several hours to several days or longer after exposure. Some infections may cause bloody diarrhea.
People who experience bloody diarrhea or persistent gastrointestinal symptoms should call their health care provider.
Information provided by Clark Co. WA Communications.
Also read:
- Northwest just finished warmest fall on record, scientists reportScientists report the Pacific Northwest experienced its warmest fall on record, with snowpack at the lowest level for this point in winter since tracking began in 2001.
- Opinion: More taxes sadly the Washington wayElizabeth New (Hovde) argues that Washington lawmakers continue to turn to new taxes instead of addressing state spending priorities, particularly in health care policy.
- C-TRAN offering free service, extended hours this New Year’s EveC-TRAN will offer free systemwide service and extended late-night hours on select routes for New Year’s Eve to support safe holiday travel.
- Clark County Public Works is seeking three new live-in volunteer park hosts for the 2026 seasonClark County Public Works is accepting applications for three live-in volunteer park host positions at regional and community parks for the 2026 season.
- Opinion: IBR administrator receives generous Christmas gift on his way out the doorKen Vance argues that IBR leadership avoided accountability on rising project costs as Administrator Greg Johnson announced his departure without providing updated estimates.
- Christmas Ships Parade enters final week with six nights of holiday magic remainingThe Christmas Ships Parade has entered its final week, with six remaining nights of illuminated boats visiting locations along the Columbia and Willamette rivers.
- County Treasurer addresses penny shortage, encourages customers to pay with exact changeThe Clark County Treasurer’s Office is asking customers who pay with cash to use exact change as a nationwide penny shortage affects the ability to obtain coins.








