OHA Drinking Water Services
OR41
PWS ID: 00861 ---- CIRCLE C IMPROVEMENT 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  6 Months 01/01/2026 - 06/30/2026 67 10 incomplete12/18/2025
EP-A  EP FOR WELLFIELD ARSENIC  3 Years 01/01/2026 - 12/31/2028 982 1 incomplete10/23/2025
EP-A  EP FOR WELLFIELD IOC notes9 Years01/01/2020 - 12/31/2028 982 1 done 08/22/2022
EP-A  EP FOR WELLFIELD NITRATE  Yearly 01/01/2026 - 12/31/2026 251 1 incomplete10/23/2025
EP-A  EP FOR WELLFIELD NITRITE notes9 Years01/01/2020 - 12/31/2028 982 1 done 08/22/2022
EP-A  EP FOR WELLFIELD PFAS notes6 Months 01/01/2026 - 06/30/2026 67 1 incomplete10/23/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR WELLFIELD RAD - GROSS ALPHA  6 Years 01/01/2023 - 12/31/2028 982 1 incomplete08/22/2022
EP-A  EP FOR WELLFIELD RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,173 1 incomplete10/23/2025
EP-A  EP FOR WELLFIELD RAD - URANIUM  6 Years 01/01/2026 - 12/31/2031 2,077 1 incomplete10/23/2025
EP-A  EP FOR WELLFIELD SOC  3 Years 01/01/2026 - 12/31/2028 982 1 incomplete10/23/2025
EP-A  EP FOR WELLFIELD VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 982 1 incomplete10/23/2025
EP-B  EP FOR WELL #6TOLUENE  Quarterly04/01/2026 - 06/30/2026 67 1 incomplete 03/09/2026
EP-B  EP FOR WELL #6 ARSENIC  3 Years 01/01/2026 - 12/31/2028 982 1 incomplete
EP-B  EP FOR WELL #6 IOC  3 Years 01/01/2026 - 12/31/2028 982 1 incomplete
EP-B  EP FOR WELL #6 NITRATE  Yearly 01/01/2026 - 12/31/2026 251 1 incomplete07/23/2019
EP-B  EP FOR WELL #6 NITRITE  3 Years 01/01/2026 - 12/31/2028 982 1 incomplete
EP-B  EP FOR WELL #6 PFAS notes6 Months 01/01/2026 - 06/30/2026 67 1 incomplete10/23/2025
  Initial monitoring - 2 samples only
EP-B  EP FOR WELL #6 RAD - GROSS ALPHA  Quarterly 04/01/2026 - 06/30/2026 67 1 incomplete03/09/2026
EP-B  EP FOR WELL #6 RAD - RADIUM 226/228 Quarterly 04/01/2026 - 06/30/2026 67 1 incomplete03/09/2026
EP-B  EP FOR WELL #6 RAD - URANIUM  Quarterly 04/01/2026 - 06/30/2026 67 1 incomplete03/09/2026
EP-B  EP FOR WELL #6 SOC  Yearly 01/01/2026 - 12/31/2026 251 1 incomplete
EP-B  EP FOR WELL #6 VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 251 1 incomplete10/23/2025
EP-C  EP FOR WELL #4 NITRATE  Yearly 01/01/2026 - 12/31/2026 251 1 incomplete10/23/2025
EP-C  EP FOR WELL #4 PFAS notes6 Months 01/01/2026 - 06/30/2026 67 1 incomplete10/23/2025
  Initial monitoring - 2 samples only
EP-D  EP FOR WELL #5 NITRATE  Yearly 01/01/2026 - 12/31/2026 251 1 incomplete10/23/2025
EP-D  EP FOR WELL #5 PFAS notes6 Months 01/01/2026 - 06/30/2026 67 1 incomplete10/23/2025
  Initial monitoring - 2 samples only

6  secs
Show Expired