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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00252
PWS Name:	DAYTON, CITY OF

Who Was Contacted and Phone:	Gary Vanderveen
Contact Date:	09/14/2007
Contacted By:	SALIS, KARI (DWP)
Contact Method/Location:	Office

Assistance Type:	BOIL WATER
Reasons:	Coliform N/A

Details:	SUMMARY: boil response DETAILS: Dayton is on a boil alert. Pete handled in on Friday. He asked me about it before I left on Friday and I believe he did the correct thing. Positive EColi followed by a positive TC repeat (at a different site). Anyway Gary at the county called and said they are handling it. He will inspect the sample sites/plan today. Also, try to increase chlorine residual. They are going to add chlorine to the reservoir. Calculated out that 30 gallons of 12.5 % into a 1.5mg res will give them 2.5 ppm. Gary said that city added 15 gallons earlier and only got 0.5 ppm. He will ask them to add 15 gallons of 12.5% again. This will flush through system. They will try to up the chlorine feed system to always keep a 0.5 ppm residual. Normal working residuals in the system are much lower than that. ACTION NEEDED: Gary to keep working with system.