OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00171 | ||
| PWS Name: | CARLTON, CITY OF | ||
| Who Was Contacted: | Bryan Burnham | ||
| Contact Phone: | 503-434-2175 | ||
| Contact Date: | 10/10/2023 | ||
| Contacted By: | ALFAFARA, NICOLE (DWP) | ||
| Contact Method/Location: | Phone | ||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Disinfection Byproducts |
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| Details: | System reached out to DWS Staff notifying them the recent HAA5 result was 0.0621 mg/L and inquired about next steps. DWS Staff informed system contact of the following: a HAA5 result >0.060 triggers increased monitoring but the system is already on quarterly monitoring, the HAA5 MCL is calculated as a LRAA from data submitted over four consecutive quarters and if the OEL being greater than 0.06 mg/L than an operational evaluation will be due within 90 days. The system’s HAA5 LRAA is 0.030 mg/L and the OEL is 0.038 mg/L when the recent 0.0621 mg/L is incorporated. | ||
| Associated Alerts: | DBP-28 - 10/12/2023 - TOTAL HALOACETIC ACIDS (HAA5) |
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