OHA Drinking Water Services
OR41
PWS ID: 01195 ---- HIGHLAND SUBDIVISION WD

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 Years01/01/2028 - 12/31/2028   5 08/01/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR LOWER DAVIS WELL ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,118 1 done 05/12/2025
EP-A  EP FOR LOWER DAVIS WELL IOC notes9 Years01/01/2020 - 12/31/2028 1,023 1 done 05/12/2025
EP-A  EP FOR LOWER DAVIS WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete05/12/2025
EP-A  EP FOR LOWER DAVIS WELL NITRITE notes9 Years01/01/2020 - 12/31/2028 1,023 1 done 05/12/2025
EP-A  EP FOR LOWER DAVIS WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete10/15/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR LOWER DAVIS WELL RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,214 1 incomplete06/24/2021
EP-A  EP FOR LOWER DAVIS WELL RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,214 1 incomplete06/24/2021
EP-A  EP FOR LOWER DAVIS WELL RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,214 1 incomplete06/24/2021
EP-A  EP FOR LOWER DAVIS WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete05/12/2025
EP-A  EP FOR LOWER DAVIS WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete05/12/2025
EP-B  EP FOR UPPER DAVIS WELL ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,118 1 done 02/07/2024
EP-B  EP FOR UPPER DAVIS WELL IOC notes9 Years01/01/2020 - 12/31/2028 1,023 1 done 02/07/2024
EP-B  EP FOR UPPER DAVIS WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete02/07/2024
EP-B  EP FOR UPPER DAVIS WELL NITRITE notes9 Years01/01/2020 - 12/31/2028 1,023 1 done 02/07/2024
EP-B  EP FOR UPPER DAVIS WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete10/15/2025
  Initial monitoring - 2 samples only
EP-B  EP FOR UPPER DAVIS WELL RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,118 1 incomplete06/24/2021
EP-B  EP FOR UPPER DAVIS WELL RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,214 1 incomplete06/24/2021
EP-B  EP FOR UPPER DAVIS WELL RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,214 1 incomplete06/24/2021
EP-B  EP FOR UPPER DAVIS WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete02/07/2024
EP-B  EP FOR UPPER DAVIS WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete02/07/2024
EP-C  EP FOR RIVER WELL ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,118 1 done 02/07/2024
EP-C  EP FOR RIVER WELL IOC notes9 Years01/01/2020 - 12/31/2028 1,023 1 done 02/07/2024
EP-C  EP FOR RIVER WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete02/07/2024
EP-C  EP FOR RIVER WELL NITRITE notes9 Years01/01/2020 - 12/31/2028 1,023 1 done 02/07/2024
EP-C  EP FOR RIVER WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete10/15/2025
  Initial monitoring - 2 samples only
EP-C  EP FOR RIVER WELL RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,118 1 incomplete06/24/2021
EP-C  EP FOR RIVER WELL RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,118 1 incomplete06/24/2021
EP-C  EP FOR RIVER WELL RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,214 1 incomplete06/24/2021
EP-C  EP FOR RIVER WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete02/07/2024
EP-C  EP FOR RIVER WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete02/07/2024

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