OHA Drinking Water Services
OR41
PWS ID: 00187 ---- CLACKAMAS RIVER WATER

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 CARBONnotesMonthly06/01/2025 - 06/30/2025 10 1 incomplete
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   30incomplete01/20/2022
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly04/01/2025 - 06/30/2025 10 4 done 04/16/2025
EP-A  EP FOR WTP ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,385 1 done 01/31/2024
EP-A  EP FOR WTP IOC notes9 Years01/01/2020 - 12/31/2028 1,290 1 done 01/31/2024
EP-A  EP FOR WTP NITRATE  Yearly 01/01/2025 - 12/31/2025 194 1 incomplete01/31/2024
EP-A  EP FOR WTP NITRITE notes9 Years01/01/2020 - 12/31/2028 1,290 1 done 01/31/2024
EP-A  EP FOR WTP RAD - GROSS ALPHA  9 Years 01/01/2020 - 12/31/2028 1,290 1 incomplete10/24/2017
EP-A  EP FOR WTP RAD - RADIUM 226/228 9 Years01/01/2017 - 12/31/2025 194 1 done 10/24/2017
EP-A  EP FOR WTP RAD - URANIUM  9 Years01/01/2017 - 12/31/2025 194 1 done 10/24/2017
EP-A  EP FOR WTP SOC notes3 Years01/01/2023 - 12/31/2025 194 2 done 01/31/2024
EP-A  EP FOR WTP VOLATILE ORGANICS  Yearly 01/01/2025 - 12/31/2025 194 1 incomplete01/31/2024
SRC-AA  CLACKAMAS RIVER CYANOTOXINS  2 Weeks 06/15/2025 - 06/28/2025 8 1 incomplete06/02/2025
 Seasonal sampling period:  05/01  thru  10/31

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More information for this water system: SDWIS ID 4544

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