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OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00717
PWS Name:	GREEN AREA WATER & SANITARY AUTHORITY

Who Was Contacted:	Jeremy Wolford
Contact Phone:	-- (Email address hidden)
Contact Date:	01/27/2021
Contacted By:	TEMPLIN, REBECCA (DWP)
Contact Method/Location:	Email

Assistance Type:	WATER QUALITY ALERT RESPONSE
Reasons:	Disinfection Byproducts

Details:	Roberts Creek Water District recently had two disinfection byproducts results over the MCL (0.060mg/L) for HAA5. The results were 0.0754 and 0.0657 mg/L. The system is already on quarterly monitoring, so no increased monitoring is required. The system stated that the pre-chlorination in the sedimentation basin is probably the culprit for the high results. They system has now removed the pre-chlorination from the treatment process. The system still uses coagulation and settling in pre-treatment.

Associated Alerts:	CHEM9219 - 01/15/2021 - TOTAL HALOACETIC ACIDS (HAA5)