OHA Drinking Water Services
OR41
PWS ID: 01180 ---- USACE BONNEVILLE DAM

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 09/17/2024
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  Distribution System STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 255 1 incomplete10/07/2025
  Seasonal sampling period:   10/01   thru   10/31
EP-A  EP FOR DRINKING WATER SYSTEM ARSENIC notes9 Years01/01/2020 - 12/31/2028 986 1 done 11/28/2023
EP-A  EP FOR DRINKING WATER SYSTEM IOC notes9 Years01/01/2020 - 12/31/2028 986 1 done 11/28/2023
EP-A  EP FOR DRINKING WATER SYSTEM NITRATE  Yearly 01/01/2026 - 12/31/2026 255 1 incomplete10/14/2025
EP-A  EP FOR DRINKING WATER SYSTEM NITRITE notes9 Years01/01/2020 - 12/31/2028 986 1 done 11/28/2023
EP-A  EP FOR DRINKING WATER SYSTEM PFAS notes6 Months 01/01/2026 - 06/30/2026 71 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR DRINKING WATER SYSTEM SOC  3 Years 01/01/2026 - 12/31/2028 986 1 incomplete11/29/2022
EP-A  EP FOR DRINKING WATER SYSTEM VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 986 1 incomplete10/21/2025

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