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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00708
PWS Name:	ROCKAWAY BEACH WTR DIST

Who Was Contacted and Phone:	Ken Christensen
Contact Date:	12/22/2011
Contacted By:	KALISH, FRED (REGION 1)
Contact Method/Location:	Office

Assistance Type:	OTHER REGULATORY - REGULATORY ASSISTANCE
Reasons:	Disinfection Byproducts Operations

Details:	SUMMARY: Letter recd describing corrective actions for elevated DBP DETAILS: DWP received a letter from Ken describing the actions the water system was taking to address the elevated TTHM (RAA currently over MCL). The actions include: bi-monthly flushing of water lines in problem areas, daily monitoring of chlorine residuals throughout the City to keep them as low as possible, UV 254 on raw water, and preparations for a pilot study to evaluate membrane filter preformance. ACTION NEEDED: Wait for additional updates.