OHA Drinking Water Services
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)