OHA Drinking Water Services
OR41
PWS ID: 91879 ---- TWIN OAKS ELEMENTARY SD 4J

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 Years01/01/2024 - 12/31/2024   5done 07/16/2024
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP for WELL ARSENIC  3 Years 01/01/2023 - 12/31/2025 480 1 incomplete10/10/2022
EP-A  EP for WELL IOC notes9 Years 01/01/2020 - 12/31/2028 1,576 1 incomplete12/27/2012
EP-A  EP for WELL NITRATE  Yearly 01/01/2024 - 12/31/2024 115 1 incomplete08/25/2023
EP-A  EP for WELL NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,576 1 incomplete12/27/2012
EP-A  EP for WELL SOC  3 Years 01/01/2023 - 12/31/2025 480 1 incomplete10/10/2022
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 480 1 incomplete10/10/2022

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More information for this water system: SDWIS ID 1070
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