OHA Drinking Water Services
OR41
PWS ID: 06118 ---- COLUMBIA HILLS HOA

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  6 Months 01/01/2025 - 06/30/2025 15 5 incomplete08/01/2024
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2025 - 12/31/2025 199 1 incomplete09/23/2024
 Seasonal sampling period:  09/01  thru  09/30
EP-A  EP FOR WELLS ARSENIC  3 Years 01/01/2023 - 12/31/2025 199 1 incomplete10/29/2019
EP-A  EP FOR WELLS IOC  3 Years 01/01/2023 - 12/31/2025 199 1 incomplete10/29/2019
EP-A  EP FOR WELLS NITRATE  Yearly 01/01/2025 - 12/31/2025 199 1 incomplete11/14/2024
EP-A  EP FOR WELLS NITRITE  3 Years 01/01/2023 - 12/31/2025 199 1 incomplete10/29/2019
EP-A  EP FOR WELLS RAD - GROSS ALPHA  9 Years01/01/2026 -   1 future 07/28/2024
EP-A  EP FOR WELLS RAD - RADIUM 226/228 9 Years01/01/2026 -   1 future 07/28/2024
EP-A  EP FOR WELLS RAD - URANIUM  9 Years01/01/2026 -   1 future 07/28/2024
EP-A  EP FOR WELLS SOC  3 Years 01/01/2023 - 12/31/2025 199 1 incomplete12/06/2022
EP-A  EP FOR WELLS VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 199 1 done 07/28/2023

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More information for this water system: SDWIS ID 4836

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