Health Alert Issued for Silver Creek Due to High Levels of E. Coli  (September 13, 2014, 1:45 am) SILVERTON, Ore. 
	The swimming area at Coolidge-McClaine Park is not affected by the health alert. 
Silverton area citizens are advised to avoid contact with Silver Creek, downstream of the Silverton wastewater treatment plant, due to a high concentration of E. coli bacteria in the water.