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 1,003 1 incomplete12/03/2025
EP-A  EP for WELL IOC  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete12/03/2025
EP-A  EP for WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 272 1 incomplete12/03/2025
EP-A  EP for WELL NITRITE  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete12/03/2025
EP-A  EP for WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 88 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP for WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete12/03/2025
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete12/03/2025

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