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 1,114 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 10/01/2025 - 12/31/2025 18 2 incomplete07/09/2025
EP-A  EP FOR SOUTH UMPQUA RIVER ARSENIC notes9 Years01/01/2020 - 12/31/2028 1,114 1 done 05/02/2023
EP-A  EP FOR SOUTH UMPQUA RIVER IOC notes9 Years01/01/2020 - 12/31/2028 1,114 1 done 05/02/2023
EP-A  EP FOR SOUTH UMPQUA RIVER NITRATE  Yearly01/01/2025 - 12/31/2025 18 1 done 04/17/2025
EP-A  EP FOR SOUTH UMPQUA RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 1,114 1 done 05/02/2023
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 18 1 done 03/19/2019
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - RADIUM 226/228notes9 Years01/01/2020 - 12/31/2028 1,114 1 done 04/19/2022
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - URANIUM notes9 Years 01/01/2020 - 12/31/2028 1,114 1 incomplete03/19/2019
EP-A  EP FOR SOUTH UMPQUA RIVER SOC notes3 Years01/01/2023 - 12/31/2025 18 2 done 04/03/2024
EP-A  EP FOR SOUTH UMPQUA RIVER VOLATILE ORGANICS  Yearly01/01/2025 - 12/31/2025 18 1 done 04/17/2025
SRC-AA  SOUTH UMPQUA RIVER CYANOTOXINS  2 Weeks-- -- -- -- --10/20/2025
 Seasonal sampling period:  05/01  thru  10/31

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More information for this water system: SDWIS ID 4306

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