OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00665 | ||
| PWS Name: | TUALATIN VALLEY WATER DISTRICT | ||
| Who Was Contacted: | Zoe Lowder | ||
| Contact Phone: | (Email address hidden) | ||
| Contact Date: | 03/27/2026 | ||
| Contacted By: | ALFAFARA, NICOLE (DWP) | ||
| Contact Method/Location: | |||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Coliform |
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| Details: | System reported a routine coliform sample collected on March 24, 2026 was total coliform positive (TC+/EC-). The sample site was collected near Godwin Court in the 426 pressure zone. Chlorine residual at the time of sampling was 1.68 mg/L, and all other water quality parameters were within expected ranges. Follow-up residuals on March 25 were approximately 1.73 mg/L. No ASR or groundwater sources were in operation at the time; therefore, only 3repeat samples were collected (no triggered source sample was required). Results of the repeat samples were received on March 26, 2026, and all were TC-/EC-. |
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| Associated Alerts: | TCR-5430 - 03/27/2026 - COLIFORM (TCR) |
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