OHA Drinking Water Services
OR41
PWS ID: 00953 ---- WILLAMINA, 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  Quarterly 01/01/2025 - 03/31/2025 59 1 incomplete10/07/2024
DIST-A  Distribution System ASBESTOS, DIST  9 Years01/01/2017 - 12/31/2025 334 1 done 10/10/2019
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   10incomplete08/18/2022
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  Distribution System STAGE 2 DBP notesYearly 01/01/2025 - 12/31/2025 334 1 incomplete10/07/2024
 Seasonal sampling period:  10/01  thru  10/31
EP-A  EP FOR WILLAMINA CREEK ARSENIC  9 Years01/01/2020 - 12/31/2028 1,430 1 done 01/28/2020
EP-A  EP FOR WILLAMINA CREEK IOC notes9 Years01/01/2020 - 12/31/2028 1,430 1 done 01/28/2020
EP-A  EP FOR WILLAMINA CREEK NITRATE  Yearly 01/01/2025 - 12/31/2025 334 1 incomplete02/07/2024
EP-A  EP FOR WILLAMINA CREEK NITRITE notes9 Years01/01/2020 - 12/31/2028 1,430 1 done 01/28/2020
EP-A  EP FOR WILLAMINA CREEK RAD - GROSS ALPHA notes9 Years 01/01/2023 - 12/31/2031 2,525 1 incomplete01/28/2020
EP-A  EP FOR WILLAMINA CREEK RAD - RADIUM 226/228notes9 Years 01/01/2017 - 12/31/2025 334 1 incomplete01/28/2014
EP-A  EP FOR WILLAMINA CREEK RAD - URANIUM notes9 Years 01/01/2023 - 12/31/2031 2,525 1 incomplete01/28/2020
EP-A  EP FOR WILLAMINA CREEK SOC  3 Years01/01/2023 - 12/31/2025 334 1 done 01/30/2023
EP-A  EP FOR WILLAMINA CREEK VOLATILE ORGANICS  Yearly 01/01/2025 - 12/31/2025 334 1 incomplete02/07/2024
WTP-A  TP FOR WILLAMINA CREEKTOTAL ORGANIC CARBON Quarterly01/01/2025 - 03/31/2025 59 1 incomplete 10/07/2024

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More information for this water system: SDWIS ID 4690
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