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| Introduction :: Data Search Options :: Water System Search :: DWS Home :: DWS Rules |
OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00882 | ||
| PWS Name: | OCEANSIDE WD - CAPE MEARES | ||
| Who Was Contacted: | David Nordman | ||
| Contact Phone: | 503-842-6462 (Email address hidden) | ||
| Contact Date: | 12/12/2018 | ||
| Contacted By: | BAIRD, GREGG (DWP) | ||
| Contact Method/Location: | |||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Disinfection Byproducts |
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| Details: | I contacted David about the quarterly TTHM disinfection byproduct sample collected in November that exceeded the MCL. Compliance is based on a location running annual average (LRAA) and this quarterly result did not cause the LRAA to exceed the MCL so it is not a violation requiring public notice. However, the operational evaluation level (OEL) which is the same as the MCL was exceeded. That is not a violation, but it requires an operational evaluation be conducted within 90 days. I emailed templates for operational evaluation report to David this date. David has already taken steps to reduce disinfection byproducts levels in the system such as fine tuning coagulant dose, so levels should be coming down in the future. | ||
| Associated Alerts: | CHEM8162 - 12/04/2018 - TTHM |
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