OHA Drinking Water Services
OR41
PWS ID: 00454 ---- ISLAND CITY

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 ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 970 1 incomplete08/06/2018
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   10incomplete09/29/2022
  Seasonal sampling period:   06/01   thru   09/30
EP-D  EP FOR WELL #4 (WALTON RD) ARSENIC  9 Years 01/01/2023 - 12/31/2031 2,065 1 incomplete12/09/2020
EP-D  EP FOR WELL #4 (WALTON RD) IOC notes9 Years01/01/2020 - 12/31/2028 970 1 done 12/09/2020
EP-D  EP FOR WELL #4 (WALTON RD) NITRATE  Yearly 01/01/2026 - 12/31/2026 239 1 incomplete09/10/2025
EP-D  EP FOR WELL #4 (WALTON RD) NITRITE notes9 Years01/01/2020 - 12/31/2028 970 1 done 12/03/2025
EP-D  EP FOR WELL #4 (WALTON RD) PFAS notes6 Months 01/01/2026 - 06/30/2026 55 1 incomplete
  Initial monitoring - 2 samples only
EP-D  EP FOR WELL #4 (WALTON RD) RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,161 1 incomplete01/09/2019
EP-D  EP FOR WELL #4 (WALTON RD) RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,161 1 incomplete12/01/2021
EP-D  EP FOR WELL #4 (WALTON RD) RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,065 1 incomplete12/19/2018
EP-D  EP FOR WELL #4 (WALTON RD) SOC  3 Years 01/01/2026 - 12/31/2028 970 1 incomplete09/12/2023
EP-D  EP FOR WELL #4 (WALTON RD) VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 970 1 incomplete09/12/2023
EP-E  EP FOR WELL #5 (MCALISTER RD) ARSENIC  9 Years 01/01/2023 - 12/31/2031 2,065 1 incomplete09/27/2022
EP-E  EP FOR WELL #5 (MCALISTER RD) IOC  9 Years 01/01/2023 - 12/31/2031 2,065 1 incomplete09/27/2022
EP-E  EP FOR WELL #5 (MCALISTER RD) NITRATE  Yearly 01/01/2026 - 12/31/2026 239 1 incomplete06/04/2025
EP-E  EP FOR WELL #5 (MCALISTER RD) NITRITE  9 Years 01/01/2023 - 12/31/2031 2,065 1 incomplete09/27/2022
EP-E  EP FOR WELL #5 (MCALISTER RD) PFAS notes6 Months 01/01/2026 - 06/30/2026 55 1 incomplete
  Initial monitoring - 2 samples only
EP-E  EP FOR WELL #5 (MCALISTER RD) RAD - GROSS ALPHA  9 Years 01/01/2020 - 12/31/2028 970 1 incomplete03/28/2018
EP-E  EP FOR WELL #5 (MCALISTER RD) RAD - RADIUM 226/228 9 Years 01/01/2020 - 12/31/2028 970 1 incomplete03/28/2018
EP-E  EP FOR WELL #5 (MCALISTER RD) RAD - URANIUM  9 Years 01/01/2020 - 12/31/2028 970 1 incomplete12/05/2018
EP-E  EP FOR WELL #5 (MCALISTER RD) SOC  3 Years 01/01/2026 - 12/31/2028 970 1 incomplete12/03/2025
EP-E  EP FOR WELL #5 (MCALISTER RD) VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 970 1 incomplete12/03/2025

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200212/31/201710Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/201812/31/201920
EP-A  EP FOR WELL #1 ("C" STREET)ARSENIC  3 Years01/01/200206/19/20081
EP-A  EP FOR WELL #1 ("C" STREET)IOC  9 Years01/01/200206/19/20081Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR WELL #1 ("C" STREET)NITRATE  Quarterly01/01/200806/19/20081Schedule Reflects Increased Monitoring
EP-A  EP FOR WELL #1 ("C" STREET)NITRATE  Yearly01/01/200206/19/20081R&C below MCL for NO3 as of 05/01/2002 - Sample in the 4th Quarter
EP-A  EP FOR WELL #1 ("C" STREET)NITRITE  9 Years01/01/200206/19/20081Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR WELL #1 ("C" STREET)SOC  3 Years01/01/200206/19/20081
EP-A  EP FOR WELL #1 ("C" STREET)VOLATILE ORGANICS  3 Years01/01/200206/19/20081
EP-C  EP FOR WELL #3 (MOUNTAIN VIEW)NITRATE  Yearly01/01/200207/25/20021
EP-C  EP FOR WELL #3 (MOUNTAIN VIEW)VOLATILE ORGANICS  3 Years01/01/200207/25/20021
EP-D  EP FOR WELL #4 (WALTON RD)ARSENIC  3 Years01/01/200212/31/20201
EP-D  EP FOR WELL #4 (WALTON RD)RAD - URANIUM  6 Years01/01/200812/31/20131
EP-E  EP FOR WELL #5 (MCALISTER RD)ARSENIC  3 Years01/01/201712/31/20221
EP-E  EP FOR WELL #5 (MCALISTER RD)IOC  3 Years01/01/201712/31/20221
EP-E  EP FOR WELL #5 (MCALISTER RD)NITRITE  3 Years01/01/201701/01/20221
EP-E  EP FOR WELL #5 (MCALISTER RD)RAD - GROSS ALPHA  Quarterly01/01/201803/31/20181
EP-E  EP FOR WELL #5 (MCALISTER RD)RAD - RADIUM 226/228  Quarterly01/01/201803/31/20181
EP-E  EP FOR WELL #5 (MCALISTER RD)RAD - URANIUM  Quarterly01/01/201803/13/20181
EP-E  EP FOR WELL #5 (MCALISTER RD)SOC  Yearly01/01/201812/31/20191
EP-E  EP FOR WELL #5 (MCALISTER RD)VOLATILE ORGANICS  Yearly01/01/201812/31/20191

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