OHA Drinking Water Services
OR41
PWS ID: 00837 ---- SPRINGFIELD UTILITY BOARD

See also: Coliform Schedules  ::  LT2 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
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 18 1 incomplete 07/10/2025
CH-A  COMMON HEADER FOR WTP-A CYANOTOXINS  2 Weeks-- -- -- -- --10/20/2025
  Seasonal sampling period:   05/01   thru   10/31
CH-B1  CH FOR THURSTON WELL #2TOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 18 1 incomplete 07/10/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/28/2020
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   30 07/25/2024
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 01/01/2026 - 03/31/2026 18 4 incomplete07/10/2025
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) ARSENIC notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/10/2025
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) IOC notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/23/2020
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) NITRATE  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete07/10/2025
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) NITRITE notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/23/2020
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) PFAS notesQuarterly 01/01/2026 - 03/31/2026 18 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/16/2017
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) RAD - RADIUM 226/228 9 Years01/01/2023 - 12/31/2031 2,119 1 done 06/27/2023
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/16/2017
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) SOC notes3 Years 01/01/2026 - 12/31/2028 1,024 2 incomplete10/24/2023
EP-A  EP FOR WILLAMETTE WELLFLD AND RVR (SSF) VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete07/10/2025
EP-B  EP FOR THURSTON WELLFIELD ARSENIC  9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/16/2025
EP-B  EP FOR THURSTON WELLFIELD IOC  9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/16/2020
EP-B  EP FOR THURSTON WELLFIELD NITRATE  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete07/16/2025
EP-B  EP FOR THURSTON WELLFIELD NITRITE  9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/16/2020
EP-B  EP FOR THURSTON WELLFIELD PFAS notesQuarterly 01/01/2026 - 03/31/2026 18 1 incomplete
  Initial monitoring - 4 quarters only
EP-B  EP FOR THURSTON WELLFIELD RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/02/2017
EP-B  EP FOR THURSTON WELLFIELD RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete07/27/2023
EP-B  EP FOR THURSTON WELLFIELD RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/02/2017
EP-B  EP FOR THURSTON WELLFIELD SOC notes3 Years 01/01/2026 - 12/31/2028 1,024 2 incomplete06/06/2024
EP-B  EP FOR THURSTON WELLFIELD VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete07/16/2025
EP-C  EP FOR WEYERHAUSER WELLFIELDPENTACHLOROPHENOL  Yearly01/01/2026 - 12/31/2026 293 1 incomplete 08/05/2024
EP-C  EP FOR WEYERHAUSER WELLFIELD ARSENIC  9 Years01/01/2023 - 12/31/2031 2,119 1 done 09/10/2025
EP-C  EP FOR WEYERHAUSER WELLFIELD IOC notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/23/2020
EP-C  EP FOR WEYERHAUSER WELLFIELD NITRATE  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete09/10/2025
EP-C  EP FOR WEYERHAUSER WELLFIELD NITRITE notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/23/2020
EP-C  EP FOR WEYERHAUSER WELLFIELD PFAS notesQuarterly 01/01/2026 - 03/31/2026 18 1 incomplete
  Initial monitoring - 4 quarters only
EP-C  EP FOR WEYERHAUSER WELLFIELD RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/16/2017
EP-C  EP FOR WEYERHAUSER WELLFIELD RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete07/27/2023
EP-C  EP FOR WEYERHAUSER WELLFIELD RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/16/2017
EP-C  EP FOR WEYERHAUSER WELLFIELD SOC notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete07/23/2020
EP-C  EP FOR WEYERHAUSER WELLFIELD VOLATILE ORGANICS notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete07/23/2020
EP-D  EP FOR SP/MAIA WELLFIELD ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,024 1 incomplete08/07/2025
EP-D  EP FOR SP/MAIA WELLFIELD IOC notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/28/2020
EP-D  EP FOR SP/MAIA WELLFIELD NITRATE  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete08/07/2025
EP-D  EP FOR SP/MAIA WELLFIELD NITRITE notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 07/28/2020
EP-D  EP FOR SP/MAIA WELLFIELD PFAS notesQuarterly 01/01/2026 - 03/31/2026 18 1 incomplete
  Initial monitoring - 4 quarters only
EP-D  EP FOR SP/MAIA WELLFIELD RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/03/2017
EP-D  EP FOR SP/MAIA WELLFIELD RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete06/27/2023
EP-D  EP FOR SP/MAIA WELLFIELD RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/03/2017
EP-D  EP FOR SP/MAIA WELLFIELD SOC notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete07/28/2020
EP-D  EP FOR SP/MAIA WELLFIELD VOLATILE ORGANICS notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete07/28/2020
EP-E  EP FOR SPORTSWAY AND I5 WELLS ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,024 1 incomplete08/20/2025
EP-E  EP FOR SPORTSWAY AND I5 WELLS IOC notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 09/17/2020
EP-E  EP FOR SPORTSWAY AND I5 WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete08/20/2025
EP-E  EP FOR SPORTSWAY AND I5 WELLS NITRITE notes9 Years01/01/2020 - 12/31/2028 1,024 1 done 09/17/2020
EP-E  EP FOR SPORTSWAY AND I5 WELLS PFAS notesQuarterly 01/01/2026 - 03/31/2026 18 1 incomplete
  Initial monitoring - 4 quarters only
EP-E  EP FOR SPORTSWAY AND I5 WELLS RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/03/2017
EP-E  EP FOR SPORTSWAY AND I5 WELLS RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete06/27/2023
EP-E  EP FOR SPORTSWAY AND I5 WELLS RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete08/03/2017
EP-E  EP FOR SPORTSWAY AND I5 WELLS SOC notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete09/17/2020
EP-E  EP FOR SPORTSWAY AND I5 WELLS VOLATILE ORGANICS notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete09/17/2020
SRC-BB  THURSTON WELL #2 CYANOTOXINS  2 Weeks-- -- -- -- --10/20/2025
  Seasonal sampling period:   05/01   thru   10/31

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