OHA Drinking Water Services
OR41
PWS ID: 00501 ---- DESCHUTES VALLEY WATER 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 Years01/01/2028 - 12/31/2028   30 09/17/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR OPAL SPRING & WELLSTOTAL POLYCHLORINATED BIPHENYLS (PCB) 9 Years01/01/2020 - 12/31/2028 1,024 1 done 08/18/2025
EP-A  EP FOR OPAL SPRING & WELLSGLYPHOSATE  9 Years01/01/2020 - 12/31/2028 1,024 1 done 08/18/2025
EP-A  EP FOR OPAL SPRING & WELLSETHYLENE DIBROMIDE 3 Years01/01/2026 - 12/31/2028 1,024 1 incomplete 08/18/2025
EP-A  EP FOR OPAL SPRING & WELLSENDOTHALL  9 Years01/01/2020 - 12/31/2028 1,024 1 done 08/18/2025
EP-A  EP FOR OPAL SPRING & WELLSDIQUAT  9 Years01/01/2020 - 12/31/2028 1,024 1 done 08/18/2025
EP-A  EP FOR OPAL SPRING & WELLS1,2-DIBROMO-3-CHLOROPROPANE 3 Years01/01/2026 - 12/31/2028 1,024 1 incomplete 08/18/2025
EP-A  EP FOR OPAL SPRING & WELLS ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,024 1 incomplete10/23/2019
EP-A  EP FOR OPAL SPRING & WELLS IOC notes9 Years 01/01/2020 - 12/31/2028 1,024 1 incomplete10/23/2019
EP-A  EP FOR OPAL SPRING & WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 293 1 incomplete08/18/2025
EP-A  EP FOR OPAL SPRING & WELLS NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,024 1 incomplete10/23/2019
EP-A  EP FOR OPAL SPRING & WELLS PFAS notesQuarterly 01/01/2026 - 03/31/2026 18 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR OPAL SPRING & WELLS RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete10/12/2021
EP-A  EP FOR OPAL SPRING & WELLS RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,215 1 incomplete10/12/2021
EP-A  EP FOR OPAL SPRING & WELLS RAD - URANIUM notes9 Years 01/01/2023 - 12/31/2031 2,119 1 incomplete10/12/2021
EP-A  EP FOR OPAL SPRING & WELLS SOC notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete08/18/2025
EP-A  EP FOR OPAL SPRING & WELLS VOLATILE ORGANICS notes6 Years 01/01/2026 - 12/31/2031 2,119 1 incomplete08/18/2025

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
EP-A  EP FOR OPAL SPRING & WELLSARSENIC  3 Years01/01/200212/31/20071
EP-A  EP FOR OPAL SPRING & WELLSRAD - URANIUM  6 Years01/01/200812/31/20131
EP-A  EP FOR OPAL SPRING & WELLSSOC  3 Years01/01/200212/31/200722 Consec. QT Samples
EP-A  EP FOR OPAL SPRING & WELLSVOLATILE ORGANICS  3 Years01/01/200212/31/20071

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