OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details
PWS ID: OR41 00802
PWS Name: ARCH CAPE WATER DISTRICT
 
Who Was Contacted and Phone: Thomas Merrell (503) 436-2790
Contact Date: 05/20/2010
Contacted By: HOFELD, EVAN (REGION 1)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Disinfection Byproducts
DBPs
 
Details: SUMMARY: TTHM Alert DETAILS: Received an alert for TTHM results of 0.1014 mg/l from a sample taken 5-20-10. System is under a bilateral compliance agreement to install membrane filtration with ACH coagulation for improved DBP precursor removal. Plans were reviewed and granted approval to proceed with construction on 12-23-09. System completed issued public notice 1st quarter 2010 for TTHM RAA MCL. ACTION NEEDED: System to proceed with membrane installation and continue to issue quarterly public notice as long as the DBP running annual average results exceed the MCL.
 
Associated Alerts: CHEM4105 - 06/03/2010 - TTHM


More information for this water system: SDWIS ID 3909
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