OHA Drinking Water Services
OR41
PWS ID: 00157 ---- CANBY UTILITY

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
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBONnotesQuarterly01/01/2026 - 03/31/2026 62 1 incomplete 09/02/2025
CH-A  COMMON HEADER FOR WTP-A CYANOTOXINS  2 Weeks-- -- -- -- --10/20/2025
 Seasonal sampling period:  05/01  thru  10/31
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 1,068 1 incomplete10/02/2019
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   30 07/08/2024
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 01/01/2026 - 03/31/2026 62 2 incomplete09/02/2025
EP-A  EP FOR MOLALLA RIVER ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,163 1 done 01/16/2025
EP-A  EP FOR MOLALLA RIVER IOC notes9 Years01/01/2020 - 12/31/2028 1,068 1 done 01/16/2025
EP-A  EP FOR MOLALLA RIVER NITRATE  Yearly 01/01/2026 - 12/31/2026 337 1 incomplete01/16/2025
EP-A  EP FOR MOLALLA RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 1,068 1 done 01/16/2025
EP-A  EP FOR MOLALLA RIVER RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,163 1 incomplete01/03/2022
EP-A  EP FOR MOLALLA RIVER RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,163 1 incomplete01/03/2022
EP-A  EP FOR MOLALLA RIVER RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,163 1 incomplete01/03/2022
EP-A  EP FOR MOLALLA RIVER SOC notes3 Years 01/01/2026 - 12/31/2028 1,068 2 incomplete01/16/2025
EP-A  EP FOR MOLALLA RIVER VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 337 1 incomplete01/16/2025

7  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
CH-A  COMMON HEADER FOR WTP-ATOC & ALKALINITY  Monthly01/01/200203/31/20061Raw and filtered TOC and alkalinity
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200209/30/20131Schedule Reflects Monitoring Reduction Granted
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201312/31/20154Sample in Dec, Mar, June, and Sept
EP-A  EP FOR MOLALLA RIVERARSENIC  Yearly01/01/200212/31/20041
EP-A  EP FOR MOLALLA RIVERATRAZINE   Quarterly07/01/201503/31/20161Evaluate 2015 data after 4th quarter sampling
EP-A  EP FOR MOLALLA RIVERATRAZINE   Yearly01/01/201703/31/20191Sample in the first quarter.
EP-A  EP FOR MOLALLA RIVERRAD - GROSS ALPHA  6 Years01/01/201712/31/20221
EP-A  EP FOR MOLALLA RIVERRAD - GROSS ALPHA  9 Years01/01/200812/31/20161Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR MOLALLA RIVERRAD - RADIUM 226/228  6 Years01/01/200812/31/20131Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR MOLALLA RIVERRAD - URANIUM  6 Years01/01/200812/31/20131Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR MOLALLA RIVERSIMAZINE   Quarterly07/01/201503/31/20161Evaluate 2015 data after 4th quarter sampling
EP-A  EP FOR MOLALLA RIVERSIMAZINE   Yearly01/01/201703/31/20191Sample in the first quarter.
EP-A  EP FOR MOLALLA RIVERSOC  3 Years01/01/200212/31/201922 Consec. QT Samples

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