OHA Drinking Water Services
OR41
PWS ID: 94200 ---- COE DALLES/JD-THE DALLES DAM

See also: Coliform Schedules

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
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   5 07/03/2023
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE) ARSENIC  3 Years01/01/2023 - 12/31/2025 642 1 incomplete01/11/2022
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE) IOC  3 Years01/01/2023 - 12/31/2025 642 1 incomplete01/11/2022
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE) NITRATE  Yearly01/01/2024 - 12/31/2024 277 1 incomplete11/21/2023
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE) NITRITE  3 Years01/01/2023 - 12/31/2025 642 1 incomplete01/11/2022
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE) SOC  3 Years01/01/2023 - 12/31/2025 642 1 incomplete01/11/2022
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE) VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 642 1 incomplete01/11/2022
EP-C  EP for WELL #3 (IN OREGON) ARSENIC notes9 Years01/01/2017 - 12/31/2025 642 1 done 10/18/2022
EP-C  EP for WELL #3 (IN OREGON) IOC  9 Years01/01/2023 - 12/31/2031 2,833 1 incomplete10/18/2022
EP-C  EP for WELL #3 (IN OREGON) NITRATE  Yearly01/01/2024 - 12/31/2024 277 1 incomplete06/07/2023
EP-C  EP for WELL #3 (IN OREGON) NITRITE notes9 Years01/01/2023 - 12/31/2031 2,833 1 incomplete10/18/2022
EP-C  EP for WELL #3 (IN OREGON) SOC  3 Years01/01/2023 - 12/31/2025 642 1 incomplete10/05/2022
EP-C  EP for WELL #3 (IN OREGON) VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 642 1 incomplete10/05/2022

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/200209/07/20045Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/200512/31/20115Sample between June 1 and Sept 30
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)ARSENIC  3 Years01/01/200209/19/20051Out of service per the 09/07/04 SS Deactivated 09/26/05 AH
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)ARSENIC  3 Years01/01/200509/19/20051
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)IOC  3 Years01/01/200209/19/20051Out of service per the 09/07/04 SS Deactivated 09/26/05 AH
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)IOC  3 Years01/01/200509/19/20051
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)NITRATE  Yearly01/01/200209/19/20051Out of service per the 09/07/04 SS Deactivated 09/26/05 AH
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)NITRATE  Yearly01/01/200509/19/20051
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)NITRITE  3 Years01/01/200209/19/20051Out of service per the 09/07/04 SS Deactivated 09/26/05 AH
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)SOC  3 Years01/01/200209/19/20051Out of service per the 09/07/04 SS Deactivated 09/26/05 AH
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)SOC  3 Years01/01/200509/19/20051
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)VOLATILE ORGANICS  3 Years01/01/200209/19/20051
EP-A  EP FOR WELL #1 (IN WASHINGTON STATE)VOLATILE ORGANICS  3 Years01/01/200509/19/20051
EP-C  EP for WELL #3 (IN OREGON)ARSENIC  3 Years01/01/200209/07/20041Out of service per the 09/07/04 SS Deactivated 09/26/05 AH
EP-C  EP for WELL #3 (IN OREGON)ARSENIC  3 Years01/01/200512/31/20161
EP-C  EP for WELL #3 (IN OREGON)IOC  9 Years01/01/200209/07/20041Schedule Reflects Monitoring Reduction Granted
EP-C  EP for WELL #3 (IN OREGON)NITRATE  Yearly01/01/200209/07/20041
EP-C  EP for WELL #3 (IN OREGON)NITRITE  9 Years01/01/200209/07/20041Schedule Reflects Monitoring Reduction Granted
EP-C  EP for WELL #3 (IN OREGON)SOC  3 Years01/01/200209/07/20041
EP-C  EP for WELL #3 (IN OREGON)VOLATILE ORGANICS  3 Years01/01/200209/07/20041

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More information for this water system: SDWIS ID 1640
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