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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 00199 | ||
| PWS Name: | BEAVER WATER DISTRICT | ||
| Who Was Contacted and Phone: | sdwis | ||
| Contact Date: | 12/08/2015 | ||
| Contacted By: | BAIRD, GREGG (REGION 1) | ||
| Contact Method/Location: | Office | ||
| Assistance Type: | WATER QUALITY ALERT RESPONSE | ||
| Reasons: | Disinfection Byproducts N/A |
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| Details: | SUMMARY: Quarterly DBP results over the MCL DETAILS: The routine quarterly sample collected 11/9/15 showed disinfection byproducts (both TTHMs & HAA5s) over the MCL at sample site SM#2. Compliance is based on the locational running annual average (LRAA) of 4 consecutive quarterly samples being under the MCLs for both TTHMs and HAA5s, not individual quarterly results. LRAAs for both TTHMs & HAA5s are currently under the respective MCLs so system is compliance. Operational Evaluation Levels (OELs) are also below both the MCLs at this time. ACTION NEEDED: System needs to pursue methods of lowering DBPs in the distribution system. No regulatory action needed at this time, however if LRAAs exceed the MCL, the system will be in violation and public notice will be required. Also if OELs exceed the MCL, the system must conduct an operational evaluation that includes an examination of the water system and identifies steps they should consider to minimize future exceedances. | ||
| Associated Alerts: | CHEM6976 - 12/04/2015 - TOTAL HALOACETIC ACIDS (HAA5) , TTHM CHEM6976 - 12/04/2015 - TOTAL HALOACETIC ACIDS (HAA5) , TTHM |
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