OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00452
Who Was Contacted and Phone: Jim Anderson (503) 864-3119
Contact Date: 10/30/2014
Contacted By: KALISH, FRED (REGION 1)
Contact Method/Location: Office
Reasons: Disinfection Byproducts
Details: SUMMARY: TTHM MCL Exceedence DETAILS: I spoke with Jim about the latest quarterly Stage 2 DPB monitoring results. The resulting LRAA for TTHM exceeds the MCL. As a result, the City must issue a Tier 2 public notice within 30 days, and address the elevated TTHM. I provided Jim guidance for conducting Operational Evaluation of water system for DBPs issues, and template and instructional guide for public notice. We discussed that they should submit a Correctve Action Plan within 30 - 45 days to describe in detail what they are doing or have done to address the TTHM exceedence. Monitoring will continue quarterly. Public notice will need to be issued quarterly until system returns to compliance. ACTION NEEDED: Wait for correspondence from City.

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DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 4296