OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 91556 | ||
| PWS Name: | CASCADE GORGE PROPERTIES | ||
| Who Was Contacted: | Salena Su | ||
| Contact Phone: | 541-287-2197 (Email address hidden) | ||
| Contact Date: | 10/24/2025 | ||
| Contacted By: | TEMPLIN, REBECCA (DWP) | ||
| Contact Method/Location: | |||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Disinfection Byproducts |
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| Details: | Discussed the high TTHM results from 10/9/2025. The results were 0.083 mg/L (MCL is 0.080 mg/L). Informed Salena that the locational running annual average (LRAA) is below the MCL so no further action is required at this time and if the next quarterly results come back above the MCL then we will discuss next steps at this time. The system has had issues with this in the past because the chlorine dosage levels were higher than needed causing high DBP results. The system has now lowered the chlorine dosage to around 1.0 mg/L which has been giving better DBP results. I said the reason the results may be higher now is because of the higher levels of organics in the water, specifically after the first rains of the season. | ||
| Associated Alerts: | DBP-174 - 10/24/2025 - TTHM |
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