OHA Drinking Water Services

OHA Drinking Water Services
Water Advisory Details

PWS ID: OR41 05201
Advisory Type: Boil Water
Reason: E. coli, Confirmed at GW Source Without Treatment
Area Affected: System-wide
Affected Populations: All
Begin Date: Jan 15, 2021
Date Lifted: Mar 05, 2021
Contacted By: DAVIS, ASHLEY ( )
Who Was Contacted: Scott Peterson
Contact Phone: 971-312-7734
Details: Routine monthly sample had come back positive for E coli on Jan 14. Three repeats and a triggered source sample were collected this day. Source sample came back positive for E coli on Jan 15. Operator was instructed to issue a boil water notice for residents and nursery staff. He agreed to generate a written notice with provided template and call all residents to ensure they understand. 5 source samples were collected from spring on Jan 15 and submitted to lab, we await results. Hillsboro Pump will shock chlorinate system for operator and then resampling will be conducted on Jan 18.

Lifted 03/05/2021:  This system has installed 4-log chlorine disinfection and successfully went through plan review for installation with OHA. A routine sample free of E coli and total coliform was taken on Feb 24th and facility has adjusted chlorine injection system to meet appropriate residual at first user. OHA final plan review approval was issued March 5th. Facility has been instructed that they have met all requirements to lift boil water advisory. Operator was instructed to inform residents and nursery staff.

Associated Alerts: COLI20751 - 01/15/2021 - COLIFORM, E. COLI , COLIFORM, TOTAL (TCR)   See also: 01/15/2021

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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
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 4385