OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00055 | ||
| PWS Name: | ASTORIA, CITY OF | ||
| Who Was Contacted: | Eric Bufkin | ||
| Contact Phone: | 503-298-2503 (Email address hidden) | ||
| Contact Date: | 03/12/2020 | ||
| Contacted By: | FARRELLY, PETER (DWP) | ||
| Contact Method/Location: | |||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Disinfection Byproducts |
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| Details: | Eric submitted an OEL report in response to the OEL exceedance. The report concludes: There has been an increased level of tannic acid and TOC in the source water during the testing period. This reduced the pH levels and required additional chlorine, at the treatment plant and at the booster stations, to maintain a safe disinfectant level. Solution proposed: Flushing rates at the end of the distribution system will be increased to reduce water age during times of high TOC/low pH of the source water. |
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| Associated Alerts: | CHEM8872 - 03/09/2020 - TOTAL HALOACETIC ACIDS (HAA5) CHEM8848 - 02/14/2020 - TOTAL HALOACETIC ACIDS (HAA5) |
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