OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00726
Who Was Contacted: Justin Nelson
Contact Phone: 503-410-2792 (Email address hidden)
Contact Date: 02/11/2021
Contact Method/Location: Phone
Assistance Type: OTHER REGULATORY - Radionuclide Monitoring Questions/Coliform Sampling Plan
Reasons: Operations
Details: On Feb 11 2020, Justin Nelson from Warren Water Association called me to let me know the Coliform Sampling Plan is completed, and wanted to know who to forward it to. I told Justin he can forward the CSP to me for review.
Justin also asked about when Gorin Well's quarterly sampling schedule for Radionuclides (Gross Alpha, Radium, Uranium and Gross Beta Particle) could be reduced. I reviewed the rules and emailed Justin back the details of how that will depend on the average of the sample results after four consecutive quarters. The schedule can switch to once every 9 years, if the average of the initial samples shows as "non-detect"; once every 6 years if the samples' average is below one-half the MCL; once every 3 years if the samples' average is less than the MCL but over one-half the MCL.
Justin forwarded me Warren Water Association's updated Coliform Sampling Plan. I have reviewed it, it looks complete to me, and I forwarded their Coliform Sampling Plan to Oregon DWS.

For further information on this public water system, click on the area of interest below:
System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
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: 4305