OHA Drinking Water Services
OR41
PWS ID: 00792 ---- SCAPPOOSE, CITY OF

See also: Coliform Schedules  ::  LT2 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
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBONnotesQuarterly01/01/2026 - 03/31/2026 9 1 incomplete 05/14/2025
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   20incomplete09/20/2023
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 284 1 incomplete12/29/2025
  Seasonal sampling period:   03/01   thru   03/31
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 284 1 incomplete12/29/2025
  Seasonal sampling period:   12/01   thru   12/31
EP-A  EP FOR WTP-A ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,206 1 incomplete07/16/2025
EP-A  EP FOR WTP-A IOC notes9 Years 01/01/2020 - 12/31/2028 1,015 1 incomplete01/16/2019
EP-A  EP FOR WTP-A NITRATE  Yearly 01/01/2026 - 12/31/2026 284 1 incomplete07/16/2025
EP-A  EP FOR WTP-A NITRITE notes9 Years01/01/2020 - 12/31/2028 1,015 1 done 07/16/2025
EP-A  EP FOR WTP-A PFAS notesQuarterly 01/01/2026 - 03/31/2026 9 1 incomplete11/20/2023
  Initial monitoring - 4 quarters only
EP-A  EP FOR WTP-A RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,206 1 incomplete07/16/2025
EP-A  EP FOR WTP-A RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,206 1 incomplete07/16/2025
EP-A  EP FOR WTP-A RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,206 1 incomplete07/16/2025
EP-A  EP FOR WTP-A SOC notes3 Years 01/01/2026 - 12/31/2028 1,015 2 incomplete07/16/2025
EP-A  EP FOR WTP-A VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 284 1 incomplete07/16/2025
EP-B  EP FOR MILLER ROAD WELLS ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,015 1 incomplete12/03/2025
EP-B  EP FOR MILLER ROAD WELLS IOC  3 Years 01/01/2026 - 12/31/2028 1,015 1 incomplete12/03/2025
EP-B  EP FOR MILLER ROAD WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 284 1 incomplete12/03/2025
EP-B  EP FOR MILLER ROAD WELLS NITRITE  3 Years 01/01/2026 - 12/31/2028 1,015 1 incomplete12/03/2025
EP-B  EP FOR MILLER ROAD WELLS RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,110 1 incomplete12/21/2022
EP-B  EP FOR MILLER ROAD WELLS RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,110 1 incomplete12/21/2022
EP-B  EP FOR MILLER ROAD WELLS RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,110 1 incomplete12/21/2022
EP-B  EP FOR MILLER ROAD WELLS SOC notes3 Years 01/01/2026 - 12/31/2028 1,015 2 incomplete07/16/2025
EP-B  EP FOR MILLER ROAD WELLS VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 284 1 incomplete07/16/2025

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