OHA Drinking Water Services
OR41
PWS ID: 00236 ---- COTTAGE GROVE, 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-B  COMMON HEADER FOR WTP-BTOTAL ORGANIC CARBON Quarterly10/01/2025 - 12/31/2025 20 1 incomplete 07/14/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,116 1 done 04/13/2020
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   30 08/28/2024
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 10/01/2025 - 12/31/2025 20 2 incomplete08/11/2025
EP-B  EP FOR WTP ROW RIVER ARSENIC  9 Years01/01/2020 - 12/31/2028 1,116 1 done 04/13/2020
EP-B  EP FOR WTP ROW RIVER IOC notes9 Years01/01/2020 - 12/31/2028 1,116 1 done 04/13/2020
EP-B  EP FOR WTP ROW RIVER NITRATE  Yearly01/01/2025 - 12/31/2025 20 1 done 04/28/2025
EP-B  EP FOR WTP ROW RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 1,116 1 done 04/13/2020
EP-B  EP FOR WTP ROW RIVER RAD - GROSS ALPHA  9 Years 01/01/2020 - 12/31/2028 1,116 1 incomplete05/14/2018
EP-B  EP FOR WTP ROW RIVER RAD - RADIUM 226/228 9 Years01/01/2017 - 12/31/2025 20 1 done 03/24/2025
EP-B  EP FOR WTP ROW RIVER RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,211 1 incomplete06/08/2015
EP-B  EP FOR WTP ROW RIVER SOC notes3 Years01/01/2023 - 12/31/2025 20 2 done 07/17/2023
EP-B  EP FOR WTP ROW RIVER VOLATILE ORGANICS  Yearly01/01/2025 - 12/31/2025 20 1 done 04/28/2025
SRC-BA  ROW 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 4293

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