OHA Drinking Water Services
Related:  Coliform Schedules

PWS ID: 90872 ---- NORTHWEST ALUMINUM COMPANY ---- Inactive

Chemical Sampling Schedule Status
Facility
ID
Analyte or Group   Sampling
Interval
Monitoring Period Days
Until
End
Samples
Required
Samples
Received
Last
Sample
Date
Start End

7  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/20195Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/202002/03/20215
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  3 Years01/01/202102/03/20211Collect sample in August at WRPB
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/202009/30/20202Sample in August. IDSE in 2020
EP-A  EP FOR WELL #1 & #3ARSENIC  3 Years01/01/200212/31/20101
EP-A  EP FOR WELL #1 & #3ARSENIC  9 Years01/01/201102/03/20211Schedule reflects monitoring reduction granted.
EP-A  EP FOR WELL #1 & #3IOC  9 Years01/01/200202/03/20211Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR WELL #1 & #3NITRATE  Yearly01/01/200202/03/20211
EP-A  EP FOR WELL #1 & #3NITRITE  9 Years01/01/200202/03/20211Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR WELL #1 & #3SOC  3 Years01/01/200202/03/20211
EP-A  EP FOR WELL #1 & #3VOLATILE ORGANICS  3 Years01/01/200202/03/20211
EP-B  EP FOR WELL #3ARSENIC  3 Years01/01/200212/31/20101
EP-B  EP FOR WELL #3ARSENIC  9 Years01/01/201102/06/20201Schedule reflects monitoring reduction granted.
EP-B  EP FOR WELL #3IOC  9 Years01/01/200202/06/20201Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR WELL #3NITRATE  Yearly01/01/200202/06/20201
EP-B  EP FOR WELL #3NITRITE  9 Years01/01/200202/06/20201Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR WELL #3SOC  3 Years01/01/200202/06/20201
EP-B  EP FOR WELL #3VOLATILE ORGANICS  3 Years01/01/200202/06/20201
EP-C  EP FOR WELL #4ARSENIC  3 Years01/01/200212/31/20101
EP-C  EP FOR WELL #4ARSENIC  9 Years01/01/201112/31/20191Schedule reflects monitoring reduction granted.
EP-C  EP FOR WELL #4IOC  9 Years01/01/200212/31/20191Schedule Reflects Monitoring Reduction Granted
EP-C  EP FOR WELL #4NITRATE  Yearly01/01/200212/31/20191
EP-C  EP FOR WELL #4NITRITE  9 Years01/01/200212/31/20191Schedule Reflects Monitoring Reduction Granted
EP-C  EP FOR WELL #4SOC  3 Years01/01/200212/31/20191
EP-C  EP FOR WELL #4VOLATILE ORGANICS  3 Years01/01/200212/31/20191

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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: 799