OHA Drinking Water Services
OR41
PWS ID: 00534 ---- MOLALLA, 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-A  COMMON HEADER FOR WTP-A TOC & ALKALINITY notesQuarterly04/01/2025 - 06/30/2025 11 1 done 05/06/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,291 1 done 11/17/2020
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2027 - 12/31/2027   30 07/10/2024
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly04/01/2025 - 06/30/2025 11 2 done 05/06/2025
EP-A  EP FOR MOLALLA RIVER ARSENIC notes9 Years01/01/2017 - 12/31/2025 195 1 done 05/06/2025
EP-A  EP FOR MOLALLA RIVER IOC notes9 Years01/01/2020 - 12/31/2028 1,291 1 done 05/06/2025
EP-A  EP FOR MOLALLA RIVER NITRATE  Yearly01/01/2025 - 12/31/2025 195 1 done 05/06/2025
EP-A  EP FOR MOLALLA RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 1,291 1 done 05/06/2025
EP-A  EP FOR MOLALLA RIVER RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 195 1 done 11/12/2019
EP-A  EP FOR MOLALLA RIVER RAD - RADIUM 226/228notes9 Years01/01/2017 - 12/31/2025 195 1 done 11/12/2019
EP-A  EP FOR MOLALLA RIVER RAD - URANIUM notes9 Years01/01/2017 - 12/31/2025 195 1 done 11/12/2019
EP-A  EP FOR MOLALLA RIVER SOC notes3 Years01/01/2023 - 12/31/2025 195 2 done 10/08/2024
EP-A  EP FOR MOLALLA RIVER VOLATILE ORGANICS  Yearly 01/01/2025 - 12/31/2025 195 1 incomplete08/13/2024
WTP-A  TP FOR MOLALLA RIVERTOTAL ORGANIC CARBONnotesQuarterly04/01/2025 - 06/30/2025 11 1 done 05/06/2025

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More information for this water system: SDWIS ID 3971

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