OHA Drinking Water Services
OR41
PWS ID: 91899 ---- WILLIAMS ELEMENTARY

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 Years01/01/2027 - 12/31/2027   5 07/12/2024
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELL #1 & #2 ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,017 1 incomplete03/03/2025
EP-A  EP FOR WELL #1 & #2 IOC notes9 Years 01/01/2020 - 12/31/2028 1,017 1 incomplete04/24/2019
EP-A  EP FOR WELL #1 & #2 NITRATE  Yearly 01/01/2026 - 12/31/2026 286 1 incomplete03/03/2025
EP-A  EP FOR WELL #1 & #2 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,017 1 incomplete04/24/2019
EP-A  EP FOR WELL #1 & #2 PFAS notes6 Months 01/01/2026 - 06/30/2026 102 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL #1 & #2 SOC  3 Years 01/01/2026 - 12/31/2028 1,017 1 incomplete03/03/2025
EP-A  EP FOR WELL #1 & #2 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,017 1 incomplete03/03/2025

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