OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00789
Who Was Contacted: Mike Walker
Contact Phone: 503-668-5533 (Email address hidden)
Contact Date: 03/31/2020
Contacted By: NUSRALA, JAMES (DWP)
Contact Method/Location: Email
Reasons: Disinfection Byproducts
Details: March 24th HAA5 DBP sample was at 0.063 mg/L at the Pioneer Blvd site, exceeding the 0.060 mg/L HAA5 MCL. This site is City Hall, and there was limited use of water when sample collected due to most staff working from home after the Governor's stay at home order due to the Covid pandemic. This may have lead to some higher water age, which can lead to higher DBPs. The locational running annual averages and operational evaluation levels have not been exceeded at any of the 4 sites, so no notification or action required at this time. City has cleaned storage tank that receives water from Portland, and taken a 1 MG distribution tank out of service in response to high levels of DBPs in December. City will continue on 4 DBP samples a quarter.
Associated Alerts: CHEM8898 - 03/27/2020 - TOTAL HALOACETIC ACIDS (HAA5)

More information for this water system: SDWIS ID 3907
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