OHA Drinking Water Services
OR41
PWS ID: 00912 ---- TYGH VALLEY WATER DISTRICT

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   5incomplete09/11/2022
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELL #1 (MAIN WELL) ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,018 1 incomplete11/17/2025
EP-A  EP FOR WELL #1 (MAIN WELL) IOC notes9 Years 01/01/2020 - 12/31/2028 1,018 1 incomplete12/12/2019
EP-A  EP FOR WELL #1 (MAIN WELL) NITRATE  Yearly 01/01/2026 - 12/31/2026 287 1 incomplete10/02/2025
EP-A  EP FOR WELL #1 (MAIN WELL) NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,018 1 incomplete12/12/2019
EP-A  EP FOR WELL #1 (MAIN WELL) PFAS notes6 Months 01/01/2026 - 06/30/2026 103 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL #1 (MAIN WELL) RAD - GROSS ALPHA  6 Years 01/01/2023 - 12/31/2028 1,018 1 incomplete12/13/2022
EP-A  EP FOR WELL #1 (MAIN WELL) RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,113 1 incomplete12/13/2022
EP-A  EP FOR WELL #1 (MAIN WELL) RAD - URANIUM  6 Years 01/01/2026 - 12/31/2031 2,113 1 incomplete12/13/2022
EP-A  EP FOR WELL #1 (MAIN WELL) SOC  3 Years 01/01/2026 - 12/31/2028 1,018 1 incomplete11/17/2025
EP-A  EP FOR WELL #1 (MAIN WELL) VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,018 1 incomplete11/17/2025

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