OHA Drinking Water Services
OR41
PWS ID: 00139 ---- RANCHERO PETITE IMPROV DIST

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   5incomplete06/24/2022
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELLS #1 & #2 ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,024 1 incomplete09/23/2019
EP-A  EP FOR WELLS #1 & #2 IOC notes9 Years 01/01/2020 - 12/31/2028 1,024 1 incomplete09/23/2019
EP-A  EP FOR WELLS #1 & #2 NITRATE  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete09/24/2025
EP-A  EP FOR WELLS #1 & #2 NITRITE  9 Years 01/01/2020 - 12/31/2028 1,024 1 incomplete09/23/2019
EP-A  EP FOR WELLS #1 & #2 PFAS notes6 Months 01/01/2026 - 06/30/2026 109 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELLS #1 & #2 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete04/28/2008
EP-A  EP FOR WELLS #1 & #2 RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,119 1 incomplete10/25/2022
EP-A  EP FOR WELLS #1 & #2 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,119 1 incomplete10/25/2022
EP-A  EP FOR WELLS #1 & #2 SOC  3 Years 01/01/2026 - 12/31/2028 1,024 1 incomplete09/24/2025
EP-A  EP FOR WELLS #1 & #2 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,024 1 incomplete09/24/2025

8  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
EP-A  EP FOR WELLS #1 & #2ARSENIC  3 Years01/01/200212/31/20101
EP-A  EP FOR WELLS #1 & #2IOC  3 Years01/01/200212/31/20071
EP-A  EP FOR WELLS #1 & #2NITRITE  3 Years01/01/200212/31/20101
EP-A  EP FOR WELLS #1 & #2RAD - RADIUM 226/228  Quarterly04/01/200812/31/20111
EP-A  EP FOR WELLS #1 & #2RAD - URANIUM  Quarterly04/01/200812/31/20111

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