OHA Drinking Water Services
OR41
PWS ID: 01351 ---- AVION WC - TUMALO RIM

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   5 09/10/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELLS ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,188 1 incomplete03/26/2019
EP-A  EP FOR WELLS IOC notes9 Years 01/01/2020 - 12/31/2028 997 1 incomplete03/26/2019
EP-A  EP FOR WELLS NITRATE  Yearly01/01/2026 - 12/31/2026 266 1 done 03/12/2026
EP-A  EP FOR WELLS NITRITE notes9 Years 01/01/2020 - 12/31/2028 997 1 incomplete03/26/2019
EP-A  EP FOR WELLS PFAS notes6 Months 01/01/2026 - 06/30/2026 82 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELLS RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,188 1 incomplete11/06/2024
EP-A  EP FOR WELLS RAD - RADIUM 226/228 9 Years01/01/2020 - 12/31/2028 997 1 done 11/06/2024
EP-A  EP FOR WELLS RAD - URANIUM  9 Years01/01/2023 - 12/31/2031 2,092 1 done 11/06/2024
EP-A  EP FOR WELLS SOC MINUS SOCR CHEMSnotes9 Years01/01/2023 - 12/31/2031 2,092 1 done 06/24/2025
EP-A  EP FOR WELLS SOCR  3 Years 01/01/2026 - 12/31/2028 997 1 incomplete06/24/2025
EP-A  EP FOR WELLS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 997 1 incomplete06/24/2025

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