OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00954
Who Was Contacted: Delora Kerber
Contact Phone: 503-570-1542
Contact Date: 03/07/2023
Contacted By: GENTRY, CARRIE (DWP)
Contact Method/Location: Phone
Reasons: SOCs
Details: Spoke with Delora about the recent alerts for Pentachlorophenol and Xylenes. Suggested she determine first that the samples were from the entry point, then collect confirmation samples.

Discussed Pentachlorophenol result of 0.00043, just above the detection limit. If the average of January result and the confirmation sample are below the detection limit, then it appears that Wilsonville may be able to return to regular sampling.

The Xylenes result was 0.001 and the detection limit is 0.0005. It seems that the result of the confirmation sample would need to be ND in order to avoid increased sampling.

If either confirmation brings the average above the detection limit, the water system will need to sample quarterly for at least 4 quarters. Then if the results are reliably and consistently below the maximum contaminant level, the water system may be eligible to reduce to annually, with no further reductions possible.
Associated Alerts: SOC-3 - 03/06/2023 - PENTACHLOROPHENOL

VOC-12 - 03/06/2023 - XYLENES, TOTAL

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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 :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 4377