OHA Drinking Water Services
OR41
PWS ID: 01439 ---- AGATE WATER SYSTEM

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   10 09/02/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR INDIAN SUMMER WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete10/29/2025
EP-A  EP FOR INDIAN SUMMER WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete
  Initial monitoring - 2 samples only
EP-B  EP FOR AGATE WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete10/29/2025
EP-B  EP FOR AGATE WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete
  Initial monitoring - 2 samples only
EP-C  EP FOR CHOCTAW WELLFIELD ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete10/29/2025
EP-C  EP FOR CHOCTAW WELLFIELD IOC notes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-C  EP FOR CHOCTAW WELLFIELD NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete10/29/2025
EP-C  EP FOR CHOCTAW WELLFIELD NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-C  EP FOR CHOCTAW WELLFIELD PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete
  Initial monitoring - 2 samples only
EP-C  EP FOR CHOCTAW WELLFIELD RAD - GROSS ALPHA  6 Years01/01/2023 - 12/31/2028 1,023 1 done 04/11/2023
EP-C  EP FOR CHOCTAW WELLFIELD RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,118 1 incomplete10/29/2025
EP-C  EP FOR CHOCTAW WELLFIELD RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,118 1 incomplete12/15/2022
EP-C  EP FOR CHOCTAW WELLFIELD SOC MINUS SOCR CHEMSnotes9 Years01/01/2020 - 12/31/2028 1,023 1 done 12/15/2022
EP-C  EP FOR CHOCTAW WELLFIELD SOCR  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete04/11/2023
EP-C  EP FOR CHOCTAW WELLFIELD VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete10/29/2025
EP-F  EP FOR HOPI WELLFIELD ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete10/29/2025
EP-F  EP FOR HOPI WELLFIELD IOC notes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-F  EP FOR HOPI WELLFIELD NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete10/29/2025
EP-F  EP FOR HOPI WELLFIELD NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-F  EP FOR HOPI WELLFIELD PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete
  Initial monitoring - 2 samples only
EP-F  EP FOR HOPI WELLFIELD RAD - GROSS ALPHA  9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-F  EP FOR HOPI WELLFIELD RAD - RADIUM 226/228 9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-F  EP FOR HOPI WELLFIELD RAD - URANIUM  9 Years01/01/2020 - 12/31/2028 1,023 1 done 12/15/2022
EP-F  EP FOR HOPI WELLFIELD SOC MINUS SOCR CHEMSnotes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-F  EP FOR HOPI WELLFIELD SOCR  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete04/11/2023
EP-F  EP FOR HOPI WELLFIELD VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete10/29/2025
EP-G  EP FOR APACHE WELLFIELD ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete10/29/2025
EP-G  EP FOR APACHE WELLFIELD IOC notes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-G  EP FOR APACHE WELLFIELD NITRATE  Yearly 01/01/2026 - 12/31/2026 292 1 incomplete10/29/2025
EP-G  EP FOR APACHE WELLFIELD NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-G  EP FOR APACHE WELLFIELD PFAS notes6 Months 01/01/2026 - 06/30/2026 108 1 incomplete
  Initial monitoring - 2 samples only
EP-G  EP FOR APACHE WELLFIELD RAD - GROSS ALPHA  6 Years 01/01/2026 - 12/31/2031 2,118 1 incomplete10/29/2025
EP-G  EP FOR APACHE WELLFIELD RAD - RADIUM 226/228 9 Years01/01/2023 - 12/31/2031 2,118 1 done 04/11/2023
EP-G  EP FOR APACHE WELLFIELD RAD - URANIUM  9 Years01/01/2020 - 12/31/2028 1,023 1 done 12/15/2022
EP-G  EP FOR APACHE WELLFIELD SOC MINUS SOCR CHEMSnotes9 Years 01/01/2020 - 12/31/2028 1,023 1 incomplete12/04/2019
EP-G  EP FOR APACHE WELLFIELD SOCR  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete04/11/2023
EP-G  EP FOR APACHE WELLFIELD VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,023 1 incomplete10/29/2025

7  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
EP-A  EP FOR INDIAN SUMMER WELLARSENIC  3 Years01/01/200212/31/20041Indian Summer Well is part of Choctaw Wellfield (EPC)
EP-A  EP FOR INDIAN SUMMER WELLIOC  9 Years01/01/200212/31/20041Part of Choctaw Wellfield (EPC)
EP-A  EP FOR INDIAN SUMMER WELLNITRITE  9 Years01/01/200212/31/20071Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR INDIAN SUMMER WELLSOC  3 Years01/01/200212/31/20041
EP-A  EP FOR INDIAN SUMMER WELLVOLATILE ORGANICS  3 Years01/01/200212/31/20041Part of Choctaw Wellfield
EP-B  EP FOR AGATE WELLARSENIC  3 Years01/01/200212/31/20041Part of Apache Wellfield (EP-G)
EP-B  EP FOR AGATE WELLIOC  9 Years01/01/200212/31/20041Part of Apache Wellfield (EP-G)
EP-B  EP FOR AGATE WELLNITRITE  9 Years01/01/200212/31/20071Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR AGATE WELLSOC  3 Years01/01/200212/31/20041
EP-B  EP FOR AGATE WELLVOLATILE ORGANICS  3 Years01/01/200212/31/20041Part of Apache Wellfield (EP-G)
EP-C  EP FOR CHOCTAW WELLFIELDRAD - GROSS ALPHA  9 Years01/01/200812/31/20161
EP-C  EP FOR CHOCTAW WELLFIELDRAD - RADIUM 226/228  Quarterly01/01/200806/30/20131
EP-C  EP FOR CHOCTAW WELLFIELDRAD - URANIUM  6 Years01/01/200812/31/20131
EP-C  EP FOR CHOCTAW WELLFIELDSOC  3 Years01/01/200212/31/20041
EP-E  EP FOR SHOSHONE WELLARSENIC  3 Years01/01/200212/31/20041Part of Choctaw Wellfield (EP-C)
EP-E  EP FOR SHOSHONE WELLIOC  9 Years01/01/200212/31/20041Part of Choctaw Wellfield (EP-C)
EP-E  EP FOR SHOSHONE WELLNITRATE  Yearly01/01/200203/01/20141
EP-E  EP FOR SHOSHONE WELLNITRITE  9 Years01/01/200212/31/20071Schedule Reflects Monitoring Reduction Granted.
EP-E  EP FOR SHOSHONE WELLSOC  3 Years01/01/200212/31/20041
EP-E  EP FOR SHOSHONE WELLVOLATILE ORGANICS  3 Years01/01/200212/31/20041Part of Choctaw Wellfield (EP-C)
EP-F  EP FOR HOPI WELLFIELDRAD - GROSS ALPHA  6 Years01/01/201412/31/20191
EP-F  EP FOR HOPI WELLFIELDRAD - GROSS ALPHA  Quarterly01/01/200803/31/20111
EP-F  EP FOR HOPI WELLFIELDRAD - RADIUM 226/228  6 Years01/01/201412/31/20191
EP-F  EP FOR HOPI WELLFIELDRAD - RADIUM 226/228  Quarterly01/01/200812/31/20121
EP-F  EP FOR HOPI WELLFIELDRAD - URANIUM  Quarterly01/01/200812/31/20101
EP-F  EP FOR HOPI WELLFIELDSOC  3 Years01/01/200212/31/20041
EP-G  EP FOR APACHE WELLFIELDRAD - GROSS ALPHA  Quarterly01/01/200803/31/20111
EP-G  EP FOR APACHE WELLFIELDRAD - RADIUM 226/228  Quarterly01/01/200803/31/20111
EP-G  EP FOR APACHE WELLFIELDRAD - URANIUM  Quarterly01/01/200812/31/20101
EP-G  EP FOR APACHE WELLFIELDSOC  3 Years01/01/200212/31/20041

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