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 01/01/2026 - 03/31/2026 43 8 incomplete09/15/2025
EP-B  EP FOR ASR WELLS ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,144 1 done 07/30/2024
EP-B  EP FOR ASR WELLS IOC notes9 Years01/01/2023 - 12/31/2031 2,144 1 done 07/30/2024
EP-B  EP FOR ASR WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 318 1 incomplete05/12/2025
EP-B  EP FOR ASR WELLS NITRITE notes9 Years01/01/2023 - 12/31/2031 2,144 1 done 07/30/2024
EP-B  EP FOR ASR WELLS RAD - GROSS ALPHA  6 Years01/01/2023 - 12/31/2028 1,049 1 done 09/12/2023
EP-B  EP FOR ASR WELLS RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,240 1 incomplete09/12/2023
EP-B  EP FOR ASR WELLS RAD - URANIUM  9 Years01/01/2023 - 12/31/2031 2,144 1 done 09/12/2023
EP-B  EP FOR ASR WELLS SOC notes3 Years 01/01/2026 - 12/31/2028 1,049 2 incomplete09/12/2023
EP-B  EP FOR ASR WELLS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,049 1 incomplete09/12/2023
EP-C  EP FOR ASR WELL #7 ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,049 1 incomplete05/06/2024
EP-C  EP FOR ASR WELL #7 IOC  3 Years 01/01/2026 - 12/31/2028 1,049 1 incomplete05/06/2024
EP-C  EP FOR ASR WELL #7 NITRATE  Yearly 01/01/2026 - 12/31/2026 318 1 incomplete05/12/2025
EP-C  EP FOR ASR WELL #7 NITRITE  3 Years 01/01/2026 - 12/31/2028 1,049 1 incomplete07/30/2024
EP-C  EP FOR ASR WELL #7 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,240 1 incomplete11/12/2024
EP-C  EP FOR ASR WELL #7 RAD - RADIUM 226/228 6 Years 01/01/2026 - 12/31/2031 2,144 1 incomplete05/12/2025
EP-C  EP FOR ASR WELL #7 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,240 1 incomplete11/12/2024
EP-C  EP FOR ASR WELL #7 SOC notes3 Years 01/01/2026 - 12/31/2028 1,049 2 incomplete05/12/2025
EP-C  EP FOR ASR WELL #7 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,049 1 incomplete05/12/2025

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  9 Years01/01/200208/20/20201Schedule Reflects Monitoring Reduction Granted
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200203/31/20124Take 8 Samples per Quarter when Sorrento Wells In Use
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/202230Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/202309/30/202460
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly04/01/201203/31/20138Sample in March, June, Sept & Dec
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly04/01/201306/30/20134Sample in March, June, Sept & Dec
EP-B  EP FOR ASR WELLSARSENIC  3 Years01/01/200212/31/20131
EP-B  EP FOR ASR WELLSIOC  3 Years01/01/200212/31/20131
EP-B  EP FOR ASR WELLSNITRITE  3 Years01/01/200212/31/20131
EP-B  EP FOR ASR WELLSRAD - GROSS ALPHA  9 Years01/01/200812/31/20161Schedule Reflects Monitoring Reduction Granted
EP-B  EP FOR ASR WELLSRAD - URANIUM  6 Years01/01/200812/31/20131
EP-C  EP FOR ASR WELL #7RAD - GROSS ALPHA  Quarterly07/01/202306/30/20241
EP-C  EP FOR ASR WELL #7RAD - RADIUM 226/228  Quarterly07/01/202312/31/20241
EP-C  EP FOR ASR WELL #7RAD - URANIUM  Quarterly07/01/202306/30/20241
EP-C  EP FOR ASR WELL #7SOC  Yearly01/01/202312/31/20251
EP-C  EP FOR ASR WELL #7VOLATILE ORGANICS  Yearly01/01/202312/31/20251

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