OHA Drinking Water Services
OR41
PWS ID: 00957 ---- WINSTON-DILLARD WATER DISTRICT

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 ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 1,003 1 incomplete03/19/2019
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   20 06/05/2024
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2026 - 06/30/2026 88 2 incomplete01/13/2026
EP-A  EP FOR SOUTH UMPQUA RIVER ARSENIC notes9 Years01/01/2020 - 12/31/2028 1,003 1 done 05/02/2023
EP-A  EP FOR SOUTH UMPQUA RIVER IOC notes9 Years01/01/2020 - 12/31/2028 1,003 1 done 05/02/2023
EP-A  EP FOR SOUTH UMPQUA RIVER NITRATE  Yearly 01/01/2026 - 12/31/2026 272 1 incomplete04/17/2025
EP-A  EP FOR SOUTH UMPQUA RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 1,003 1 done 05/02/2023
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,194 1 incomplete03/19/2019
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - RADIUM 226/228notes9 Years01/01/2020 - 12/31/2028 1,003 1 done 04/19/2022
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - URANIUM notes9 Years 01/01/2020 - 12/31/2028 1,003 1 incomplete03/19/2019
EP-A  EP FOR SOUTH UMPQUA RIVER SOC notes3 Years 01/01/2026 - 12/31/2028 1,003 2 incomplete04/03/2024
EP-A  EP FOR SOUTH UMPQUA RIVER VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 272 1 incomplete04/17/2025
SRC-AA  SOUTH UMPQUA RIVER CYANOTOXINS  2 Weeks-- -- -- -- --10/20/2025
  Seasonal sampling period:   05/01   thru   10/31

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