OHA Drinking Water Services
OR41
PWS ID: 00841 ---- THURSTON OAKS MHP

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   5incomplete07/07/2022
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  Distribution System STAGE 2 DBP notes3 Years01/01/2026 - 12/31/2026   1incomplete08/03/2023
  Seasonal sampling period:   08/01   thru   08/31
EP-A  EP FOR WELL ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,022 1 incomplete07/28/2025
EP-A  EP FOR WELL IOC notes9 Years 01/01/2023 - 12/31/2031 2,117 1 incomplete07/14/2022
EP-A  EP FOR WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 291 1 incomplete07/28/2025
EP-A  EP FOR WELL NITRITE  9 Years 01/01/2023 - 12/31/2031 2,117 1 incomplete07/14/2022
EP-A  EP FOR WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 107 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,213 1 incomplete07/28/2025
EP-A  EP FOR WELL RAD - RADIUM 226/228notes6 Years 01/01/2026 - 12/31/2031 2,117 1 incomplete07/28/2025
EP-A  EP FOR WELL RAD - URANIUM notes6 Years 01/01/2026 - 12/31/2031 2,117 1 incomplete07/28/2025
EP-A  EP FOR WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,022 1 incomplete07/28/2025
EP-A  EP FOR WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,022 1 incomplete07/28/2025

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More information for this water system: SDWIS ID 3450

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