OHA Drinking Water Services
OR41
PWS ID: 00548 ---- CLARKS BRANCH WATER ASSOC

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-A TOC & ALKALINITY notesQuarterly 04/01/2025 - 06/30/2025 63 1 incomplete02/04/2025
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   5 07/17/2024
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2025 - 06/30/2025 63 1 incomplete02/04/2025
EP-A  EP FOR SOUTH UMPQUA RIVER ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,343 1 incomplete08/31/2016
EP-A  EP FOR SOUTH UMPQUA RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 1,343 1 incomplete08/31/2016
EP-A  EP FOR SOUTH UMPQUA RIVER NITRATE  Yearly 01/01/2025 - 12/31/2025 247 1 incomplete08/06/2024
EP-A  EP FOR SOUTH UMPQUA RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,343 1 incomplete08/31/2016
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - GROSS ALPHA  6 Years01/01/2020 - 12/31/2025 247 1 done 10/04/2023
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - RADIUM 226/228 9 Years 01/01/2020 - 12/31/2028 1,343 1 incomplete08/31/2016
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - URANIUM  9 Years 01/01/2020 - 12/31/2028 1,343 1 incomplete08/31/2016
EP-A  EP FOR SOUTH UMPQUA RIVER SOC  3 Years01/01/2023 - 12/31/2025 247 1 done 08/03/2023
EP-A  EP FOR SOUTH UMPQUA RIVER VOLATILE ORGANICS notesYearly01/01/2025 - 12/31/2025 247 1 done 01/27/2025
 Seasonal sampling period:  07/01  thru  09/30
SRC-AA  SOUTH UMPQUA RIVER CYANOTOXINS  2 Weeks 04/20/2025 - 05/03/2025 5 1 incomplete10/21/2024
 Seasonal sampling period:  05/01  thru  10/31

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More information for this water system: SDWIS ID 3972

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