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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00939
PWS Name:	WESTFIR, CITY OF

Who Was Contacted and Phone:	Myron Smith (541) 782-3733
Contact Date:	02/03/2009
Contacted By:	HENRY, ROBERT (DWP)
Contact Method/Location:	Field

Assistance Type:	CIRCUIT RIDER ASSISTANCE
Reasons:	N/A N/A

Details:	SUMMARY: Filter Media Evaluation DETAILS: The City owns and operates a Surface Water system. The city supplies treated water to 320 residents through 120 connections. HBH was contacted by Mr Smith to provide assistance with performance issues in one of the City’s slow sand filter basins. The City has had repeated difficulty with one of the two filter basins ever since the media was replaced. Finished water turbidity levels are below the MCL, however-- the second filter takes considerably longer to ripen. In addition, the ultimate turbidity levels in the second filter are significantly higher than in the first filter. I evaluated results of lab analysis, comparing results with typical media gradations for slow sand filters. I corresponded with Myron Smith regarding slow sand filter media sources. ACTION NEEDED: Continue investigation of media quality.