OHA Drinking Water Services
OR41
PWS ID: 01457 ---- HIGH DESERT ESTATES

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   5incomplete08/01/2023
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELL #1 ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,129 1 incomplete03/08/2022
EP-A  EP FOR WELL #1 IOC notes9 Years 01/01/2020 - 12/31/2028 1,034 1 incomplete06/04/2019
EP-A  EP FOR WELL #1 NITRATE  Yearly 01/01/2026 - 12/31/2026 303 1 incomplete01/15/2025
EP-A  EP FOR WELL #1 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,034 1 incomplete06/04/2019
EP-A  EP FOR WELL #1 PFAS notes6 Months 01/01/2026 - 06/30/2026 119 1 incomplete10/15/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL #1 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,225 1 incomplete06/12/2025
EP-A  EP FOR WELL #1 RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,129 1 incomplete06/12/2025
EP-A  EP FOR WELL #1 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,129 1 incomplete03/08/2022
EP-A  EP FOR WELL #1 SOC  3 Years 01/01/2026 - 12/31/2028 1,034 1 incomplete07/24/2025
EP-A  EP FOR WELL #1 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,034 1 incomplete07/24/2025
EP-B  EP FOR WELLS #2, #3, #5 ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,129 1 incomplete03/08/2022
EP-B  EP FOR WELLS #2, #3, #5 IOC notes9 Years 01/01/2020 - 12/31/2028 1,034 1 incomplete03/19/2012
EP-B  EP FOR WELLS #2, #3, #5 NITRATE  Yearly 01/01/2026 - 12/31/2026 303 1 incomplete01/15/2025
EP-B  EP FOR WELLS #2, #3, #5 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,034 1 incomplete03/19/2012
EP-B  EP FOR WELLS #2, #3, #5 PFAS notes6 Months 01/01/2026 - 06/30/2026 119 1 incomplete10/15/2025
  Initial monitoring - 2 samples only
EP-B  EP FOR WELLS #2, #3, #5 RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,225 1 incomplete06/12/2025
EP-B  EP FOR WELLS #2, #3, #5 RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,129 1 incomplete06/12/2025
EP-B  EP FOR WELLS #2, #3, #5 RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,225 1 incomplete06/12/2025
EP-B  EP FOR WELLS #2, #3, #5 SOC  3 Years 01/01/2026 - 12/31/2028 1,034 1 incomplete07/24/2025
EP-B  EP FOR WELLS #2, #3, #5 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,034 1 incomplete07/24/2025
EP-C  EP FOR WELL #4 ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,129 1 incomplete03/08/2022
EP-C  EP FOR WELL #4 IOC notes9 Years 01/01/2020 - 12/31/2028 1,034 1 incomplete06/04/2019
EP-C  EP FOR WELL #4 NITRATE  Yearly 01/01/2026 - 12/31/2026 303 1 incomplete01/15/2025
EP-C  EP FOR WELL #4 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,034 1 incomplete06/04/2019
EP-C  EP FOR WELL #4 PFAS notes6 Months 01/01/2026 - 06/30/2026 119 1 incomplete10/15/2025
  Initial monitoring - 2 samples only
EP-C  EP FOR WELL #4 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,225 1 incomplete06/12/2025
EP-C  EP FOR WELL #4 RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,129 1 incomplete06/12/2025
EP-C  EP FOR WELL #4 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,129 1 incomplete03/08/2022
EP-C  EP FOR WELL #4 SOC  3 Years 01/01/2026 - 12/31/2028 1,034 1 incomplete07/24/2025
EP-C  EP FOR WELL #4 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,034 1 incomplete07/24/2025

5  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
EP-A  EP FOR WELL #1ARSENIC  3 Years01/01/200212/31/20131
EP-A  EP FOR WELL #1RAD - RADIUM 226/228  9 Years01/01/200812/31/20131
EP-A  EP FOR WELL #1RAD - URANIUM  6 Years01/01/200812/31/20131
EP-B  EP FOR WELLS #2, #3, #5ARSENIC  3 Years01/01/200212/31/20131
EP-B  EP FOR WELLS #2, #3, #5IOC  3 Years01/01/200212/31/20101
EP-B  EP FOR WELLS #2, #3, #5NITRITE  3 Years01/01/200212/31/20101
EP-B  EP FOR WELLS #2, #3, #5RAD - RADIUM 226/228  9 Years01/01/200812/31/20131Initial sampling conducted under PWS 41-01481
EP-C  EP FOR WELL #4ARSENIC  3 Years01/01/200212/31/20131
EP-C  EP FOR WELL #4IOC  3 Years01/01/200212/31/20101
EP-C  EP FOR WELL #4NITRITE  3 Years01/01/200212/31/20101
EP-C  EP FOR WELL #4RAD - RADIUM 226/228  9 Years01/01/200812/31/20131
EP-C  EP FOR WELL #4RAD - URANIUM  6 Years01/01/200812/31/20131

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