OHA Drinking Water Services
OR41
PWS ID: 90603 ---- DUFUR SCHOOL DIST #29

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   5incomplete08/03/2023
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP for WELL ARSENIC  3 Years 01/01/2026 - 12/31/2028 998 1 incomplete12/03/2025
EP-A  EP for WELL IOC  3 Years 01/01/2026 - 12/31/2028 998 1 incomplete12/03/2025
EP-A  EP for WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 267 1 incomplete12/03/2025
EP-A  EP for WELL NITRITE  3 Years 01/01/2026 - 12/31/2028 998 1 incomplete12/03/2025
EP-A  EP for WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 83 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP for WELL SOC  3 Years 01/01/2026 - 12/31/2028 998 1 incomplete12/03/2025
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 998 1 incomplete12/03/2025

7  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/201608/01/20165
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/201712/31/20185Collect samples between June 1 and September 30.
EP-A  EP for WELLNITRATE  Yearly01/01/200209/01/20021
EP-A  EP for WELLVOLATILE ORGANICS  3 Years01/01/200209/01/20021

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