OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00554
Who Was Contacted: Brian Moore
Contact Phone: 503-368-5155 (Email address hidden)
Contact Date: 11/16/2021
Contacted By: HOFELD, EVAN (DWP)
Contact Method/Location: Email
Reasons: Disinfection Byproducts
Details: I received an alert on 11/10/21 for the last round of DBP sampling completed 11/2/21 showing levels of 0.0796 mg/l for TTHM and 0.0829 mg/l for HAA5 at the SM-2 - 13405 Thompson Rd site. These results(combined with results from the previous 2 quarters) caused an exceedance of the Operational Evaluation Level (OEL) requiring an Operational Evaluation to be completed and returned to me within 90 days. I called Brian and spoke to him about the alert as well as sent him an e-mail on 11/16/21. A link to a template and instructions on how to complete the Evaluation were provided in the e-mail and the circuit rider (Dan Vaage with Civil West) was ccd the e-mail to see if he could also assist. Information on how to complete the OEL Evaluation and how the OEL is calculated was provided in the email and I provided my cell number (971-200-0288) in case Brian had any further questions.
Associated Alerts: CHEM9532 - 11/10/2021 - TOTAL HALOACETIC ACIDS (HAA5)

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