OHA Drinking Water Services
OR41
PWS ID: 05884 ---- OLAM WEST COAST INC

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 09/02/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notes3 Years01/01/2028 - 12/31/2028   1 08/25/2025
  Seasonal sampling period:   08/01   thru   08/31
EP-A  EP FOR WELL ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,076 1 incomplete08/23/2022
EP-A  EP FOR WELL IOC notes9 Years 01/01/2023 - 12/31/2031 2,076 1 incomplete08/23/2022
EP-A  EP FOR WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 250 1 incomplete12/09/2025
EP-A  EP FOR WELL NITRITE notes9 Years 01/01/2023 - 12/31/2031 2,076 1 incomplete08/23/2022
EP-A  EP FOR WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 66 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL SOC  3 Years 01/01/2026 - 12/31/2028 981 1 incomplete12/16/2025
EP-A  EP FOR WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 981 1 incomplete12/30/2025

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/201309/30/20131
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/200212/31/20025
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  Yearly01/01/200312/31/20055Sample Between June 1st and Sept 30th
EP-A  EP FOR WELLARSENIC  3 Years01/01/200212/31/20131
EP-A  EP FOR WELLIOC  3 Years01/01/200212/31/20131
EP-A  EP FOR WELLNITRITE  3 Years01/01/200212/31/20131

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