OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00055
PWS Name: ASTORIA, CITY OF
 
Who Was Contacted and Phone: Jim Hatcher (503) 325-3524
Contact Date: 11/25/2015
Contacted By: HOFELD, EVAN (REGION 1)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Disinfection Byproducts
DBPs
 
Details: SUMMARY: HAA5 Alert for single result over the MCL - no LRAA or OEL exceedance DETAILS: I received an alert for a single HAA5 result of 0.0699 mg/l from the Merts sample site (2DBP-01) and a single HAA5 result of 0.0675 mg/l from the 1st and D sample site (2DBP-02). I calculated the 4th quarter 2015 Locational Running Annual Average (LRAA) to be 0.0531 mg/l for Merts and 0.0514 mg/l for 1st and D and the Operational Evaluation Level (OEL) to be 0.059825 for Merts and 0.056275 for 1st and D, which were all below the HAA5 MCL of 0.060 mg/l. System has been working to resolve high HAA5 levels. I sent an e-mail to Jim Hatcher and Eric Bufkin with the City making them aware of the results and letting them know that no further action was needed. ACTION NEEDED: System to continue working towards reduced HAA5 levels. No other specific action is needed due to these results, other than to account for them in the annual Consumer Confidence Report.
 
Associated Alerts: CHEM6964 - 11/25/2015 - TOTAL HALOACETIC ACIDS (HAA5)

CHEM6964 - 11/25/2015 - TOTAL HALOACETIC ACIDS (HAA5)



More information for this water system: SDWIS ID 3873
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