OHA Drinking Water Services
OR41
PWS ID: 00695 ---- HIDDEN VALLEY MBL ESTS IMP DIS

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 08/11/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELLS #2 AND #3 ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,001 1 incomplete09/29/2025
EP-A  EP FOR WELLS #2 AND #3 IOC notes9 Years01/01/2020 - 12/31/2028 1,001 1 done 08/30/2022
EP-A  EP FOR WELLS #2 AND #3 NITRATE  Yearly 01/01/2026 - 12/31/2026 270 1 incomplete09/29/2025
EP-A  EP FOR WELLS #2 AND #3 NITRITE notes9 Years01/01/2020 - 12/31/2028 1,001 1 done 08/30/2022
EP-A  EP FOR WELLS #2 AND #3 PFAS notes6 Months 01/01/2026 - 06/30/2026 86 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELLS #2 AND #3 RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,192 1 incomplete08/30/2022
EP-A  EP FOR WELLS #2 AND #3 RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,192 1 incomplete08/30/2022
EP-A  EP FOR WELLS #2 AND #3 RAD - URANIUM  6 Years 01/01/2023 - 12/31/2028 1,001 1 incomplete08/30/2022
EP-A  EP FOR WELLS #2 AND #3 SOC  3 Years 01/01/2026 - 12/31/2028 1,001 1 incomplete09/29/2025
EP-A  EP FOR WELLS #2 AND #3 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,001 1 incomplete09/29/2025

6  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
EP-A  EP FOR WELLS #2 AND #3RAD - URANIUM  9 Years01/01/200812/31/20161Schedule Reflects Monitoring Reduction Granted
SRC-AC  WELL #3RAD - GROSS ALPHA  Quarterly10/01/201612/31/20171Schedule for well #3 for plan review.
SRC-AC  WELL #3RAD - RADIUM 226/228  Quarterly10/01/201612/31/20171Schedule for well #3 for plan review.
SRC-AC  WELL #3RAD - URANIUM  Quarterly10/01/201612/31/20171Schedule for well #3 for plan review.

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