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OHA Drinking Water Services
Contact Report Details |
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| PWS ID: | OR41 00821 | ||
| PWS Name: | SILETZ, CITY OF | ||
| Who Was Contacted and Phone: | Allen Middaugh (541) 444-2521 | ||
| Contact Date: | 12/31/2007 | ||
| Contacted By: | POTTS, JOHN (DWP) | ||
| Contact Method/Location: | Field | ||
| Assistance Type: | CIRCUIT RIDER ASSISTANCE | ||
| Reasons: | N/A N/A |
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| Details: | SUMMARY: Stage 2 DBPR/LT2 Assistance DETAILS: System requested HBH assistance for preparation of the Standard Monitoring Plan (SMP) for compliance with Stage 2 DBPR, The SMP is due 4-1-08. I met with Allen on 12/19 and briefly reviewed previous DPB results, chlorine residuals records, distribution map and current sampling sites. The SMP requires identification for new DBP sample sites based on a combination of records, piping layouts, previous results ad calculations. The new sites must then be justified in writing and submitted to the USEPA in the SMP. I created a working distribution map, carefully reviewed chlorine results, Stage 1 DBP results, and collection locations and calculated average residence time and average chlorine residual results. I contacted Wendy Marshall, EPA R10 for assistance and clarification. I also reviewed LT2 requirements and sampling plan criteria. ACTION NEEDED: Complete final report. Meet with Allen again to review and verify sites. I will complete and LT2 sampling plan after the Stage 2 DBP SMP is completed. | ||