OHA Drinking Water Services
OR41
PWS ID: 00081 ---- BEAVERTON, CITY OF

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   30 06/17/2024
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2026 - 06/30/2026 88 8 incomplete12/02/2025
EP-B  EP FOR ASR WELLS ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,098 1 done 07/30/2024
EP-B  EP FOR ASR WELLS IOC notes9 Years01/01/2023 - 12/31/2031 2,098 1 done 07/30/2024
EP-B  EP FOR ASR WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 272 1 incomplete05/12/2025
EP-B  EP FOR ASR WELLS NITRITE notes9 Years01/01/2023 - 12/31/2031 2,098 1 done 07/30/2024
EP-B  EP FOR ASR WELLS PFAS notesQuarterly 04/01/2026 - 06/30/2026 88 1 incomplete
  Initial monitoring - 4 quarters only
EP-B  EP FOR ASR WELLS RAD - GROSS ALPHA  6 Years01/01/2023 - 12/31/2028 1,003 1 done 09/12/2023
EP-B  EP FOR ASR WELLS RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,194 1 incomplete09/12/2023
EP-B  EP FOR ASR WELLS RAD - URANIUM  9 Years01/01/2023 - 12/31/2031 2,098 1 done 09/12/2023
EP-B  EP FOR ASR WELLS SOC notes3 Years 01/01/2026 - 12/31/2028 1,003 2 incomplete09/12/2023
EP-B  EP FOR ASR WELLS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete09/12/2023
EP-C  EP FOR ASR WELL #7 ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete05/06/2024
EP-C  EP FOR ASR WELL #7 IOC  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete05/06/2024
EP-C  EP FOR ASR WELL #7 NITRATE  Yearly 01/01/2026 - 12/31/2026 272 1 incomplete05/12/2025
EP-C  EP FOR ASR WELL #7 NITRITE  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete07/30/2024
EP-C  EP FOR ASR WELL #7 PFAS notesQuarterly 04/01/2026 - 06/30/2026 88 1 incomplete
  Initial monitoring - 4 quarters only
EP-C  EP FOR ASR WELL #7 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,194 1 incomplete11/12/2024
EP-C  EP FOR ASR WELL #7 RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,098 1 incomplete05/12/2025
EP-C  EP FOR ASR WELL #7 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,194 1 incomplete11/12/2024
EP-C  EP FOR ASR WELL #7 SOC notes3 Years 01/01/2026 - 12/31/2028 1,003 2 incomplete05/12/2025
EP-C  EP FOR ASR WELL #7 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,003 1 incomplete05/12/2025

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