OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00953
Who Was Contacted: Justin Riggs
Contact Phone: -- (Email address hidden)
Contact Date: 07/13/2020
Contact Method/Location: Email
Assistance Type: OTHER WATER QUALITY - pH Control
Reasons: Other
Details: The City of Willamina uses soda ash for corrosion control. Justin reached out to DWS about the use of citric acid to control high pH values (increase chlorine effectiveness = use less chlorine and reduce rising DBPs). Justin was notified OAR 333-061-0060 requires system additions or modification to corrosion control treatment be submitted to and approved by DWS. He was directed to get a professional engineer to evaluate water chemistry and corrosion control options and submit a plan review for any chemical additions. Circuit Riders information was also provided as they might be able to assist him and provide information on managing the pH.

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