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  6 Months 01/01/2025 - 06/30/2025 150 10 incomplete07/16/2024
EP-A  EP for WELL ARSENIC  3 Years 01/01/2023 - 12/31/2025 334 1 incomplete10/10/2022
EP-A  EP for WELL IOC notes9 Years 01/01/2020 - 12/31/2028 1,430 1 incomplete12/27/2012
EP-A  EP for WELL NITRATE  Yearly 01/01/2025 - 12/31/2025 334 1 incomplete09/26/2024
EP-A  EP for WELL NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,430 1 incomplete12/27/2012
EP-A  EP for WELL SOC  3 Years 01/01/2023 - 12/31/2025 334 1 incomplete10/10/2022
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 334 1 incomplete10/10/2022

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More information for this water system: SDWIS ID 1070
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