OHA Drinking Water Services
OR41
PWS ID: 90575 ---- HARPER HIGH/ELEMENTARY SD 66

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 Years01/01/2025 - 12/31/2025   5incomplete09/07/2022
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notes3 Years01/01/2026 - 12/31/2026   1  09/20/2023
 Seasonal sampling period:  09/01  thru  09/30
EP-A  EP FOR WELL ARSENIC  Yearly01/01/2026 -   1 future 08/13/2025
EP-A  EP FOR WELL IOC  9 Years 01/01/2017 - 12/31/2025 32 1 incomplete06/15/2016
EP-A  EP FOR WELL NITRATE  Yearly01/01/2025 - 12/31/2025 32 1 done 04/16/2025
EP-A  EP FOR WELL NITRITE  9 Years 01/01/2017 - 12/31/2025 32 1 incomplete06/15/2016
EP-A  EP FOR WELL SOC  3 Years 01/01/2023 - 12/31/2025 32 1 incomplete06/01/2022
EP-A  EP FOR WELL VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 32 1 incomplete06/01/2022

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More information for this water system: SDWIS ID 2540

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