OHA Drinking Water Services
OR41
PWS ID: 00930 ---- WALLOWA, CITY OF

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
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   10 08/22/2023
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP for WELL #1 (BIG WELL) ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,360 1 incomplete05/16/2022
EP-A  EP for WELL #1 (BIG WELL) IOC notes9 Years01/01/2020 - 12/31/2028 1,265 1 done 05/16/2022
EP-A  EP for WELL #1 (BIG WELL) NITRATE  Yearly01/01/2025 - 12/31/2025 169 1 done 05/05/2025
EP-A  EP for WELL #1 (BIG WELL) NITRITE notes9 Years01/01/2020 - 12/31/2028 1,265 1 done 05/16/2022
EP-A  EP for WELL #1 (BIG WELL) RAD - GROSS ALPHA  9 Years01/01/2017 - 12/31/2025 169 1 done 05/16/2022
EP-A  EP for WELL #1 (BIG WELL) RAD - RADIUM 226/228 9 Years01/01/2017 - 12/31/2025 169 1 done 05/16/2022
EP-A  EP for WELL #1 (BIG WELL) RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,360 1 incomplete05/16/2022
EP-A  EP for WELL #1 (BIG WELL) SOC  3 Years01/01/2023 - 12/31/2025 169 1 done 05/05/2025
EP-A  EP for WELL #1 (BIG WELL) VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 169 1 done 05/05/2025
EP-C  EP FOR WELL #2 ARSENIC  9 Years01/01/2020 - 12/31/2028 1,265 1 done 05/05/2025
EP-C  EP FOR WELL #2 IOC  9 Years01/01/2020 - 12/31/2028 1,265 1 done 05/05/2025
EP-C  EP FOR WELL #2 NITRATE  Yearly01/01/2025 - 12/31/2025 169 1 done 05/05/2025
EP-C  EP FOR WELL #2 NITRITE  9 Years01/01/2023 - 12/31/2031 2,360 1 done 05/05/2025
EP-C  EP FOR WELL #2 RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,360 1 incomplete11/17/2022
EP-C  EP FOR WELL #2 RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,360 1 incomplete11/17/2022
EP-C  EP FOR WELL #2 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,360 1 incomplete11/17/2022
EP-C  EP FOR WELL #2 SOC  3 Years01/01/2023 - 12/31/2025 169 1 done 05/05/2025
EP-C  EP FOR WELL #2 VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 169 1 done 05/05/2025

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