OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00063
Who Was Contacted and Phone: Ron Lake (503) 741-6658
Contact Date: 06/19/2009
Contacted By: HOFELD, EVAN (REGION 1)
Contact Method/Location: Office
Reasons: Lead or Copper
Details: SUMMARY: Sent reminder to complete two 6 month rounds of LCR sampling DETAILS: I called to remind Ron that following the final approval of the corrosion control treatment, two 6 month rounds of 20 tap samples needed to be completed. Treatment was approved November 17, 2008 and the system should have had enough time to stabilize the pH in the system with the treatment. pH should be maintained at a level of 7.2 or higher for optimal treatment (target entry point levels should be around 7.5 or higher to guarantee a minimum 7.2 throughout the distribution system). The first round of 20 tap samples should be taken by the end of June 2009. The second set of 20 samples can be taken between July 1st and Dec 31st of 2009. ACTION NEEDED: System to take the first round of 20 tap samples by the end of June 2009. The second set of 20 samples is to be taken between July 1st and Dec 31st of 2009.

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Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3875