OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00466 | ||
| PWS Name: | LANGLOIS WATER DISTRICT | ||
| Who Was Contacted: | Jesse Crim | ||
| Contact Phone: | 541-655-0467 | ||
| Contact Date: | 08/14/2025 | ||
| Contacted By: | DOWNS, KENT (DWP) | ||
| Contact Method/Location: | Phone | ||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Coliform |
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| Details: | 08.14.2025 -The system had a TC positive on August 5th. Two repeat samples collected on August 11th tested positive for TC but absent of E. Coli. I clarified to the operator that a boil water advisory is not required at this time since the system did not test E. Coli positive. Next steps: Conduct a Level 1 Coliform Investigation: Since the system had a TC+ routine sample and at least one TC+ repeat sample, a Level 1 Assessment is required under the RTC Rule. This is a mandatory investigation to identify and correct any sanitary defects or conditions that may have caused the contaminations. I clarified to the operator that it is no advisable to shock chlorinate the entire active distribution system. This is generally not an effective method for addressing contamination in a live system and can create potential health and taste-odor issues for customers due to high chlorine levels and disinfection byproducts. Instead, the operator must focus on identifying and repairing any sanitary defects found during your Level 1 Assessment. If a specific section of the distribution system (e.g., a main break repair) is identified as the source of the contamination, that section should be isolated, flushed, and disinfected using OHA-approved procedures before being returned to service. |
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| Associated Alerts: | TCR-4198 - 08/14/2025 - COLIFORM (TCR) TCR-4199 - 08/14/2025 - COLIFORM (TCR) |
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