OHA Drinking Water Services Water Advisory Details |
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| PWS ID: | OR41 00665 |
| PWS Name: | TUALATIN VALLEY WATER DISTRICT |
| Advisory Type: | Boil Water |
| Reason: | Loss of Pressure |
| Area Affected: | Partial - 1 connection near 485 NW 107th Avenue, Portland OR |
| Affected Populations: | All |
| Begin Date: | Nov 13, 2025 |
| Date Lifted: | Nov 14, 2025 |
| Contacted By: | ALFAFARA, NICOLE (DWP) |
| Who Was Contacted: | Tara Vanderwey |
| Contact Phone: | 503-848-3000 |
| Details: | TVWD issued a boil water advisory on 11/13/2025 for a single customer along NW 107th Avenue, Portland (575-pressure zone) due to a mapping error during a planned valve replacement. A hand-delivered notice and door hanger were provided. Coliform samples were collected and results expected on 11/14/2025. Lifted 11/14/2025: Upon subsequent review, it was determined that the customer’s service maintained positive pressure at the meter throughout the event. Following verification of sustained positive pressure, the advisory was lifted on November 14, 2025. |