OHA Drinking Water Services
OR41
PWS ID: 00237 ---- HILLTOP IMPROVEMENT DISTRICT

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 Years01/01/2027 - 12/31/2027   5 08/07/2024
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP for WELL IOC notes9 Years01/01/2017 - 12/31/2025 335 1 done 06/24/2019
EP-A  EP for WELL NITRATE  Yearly 01/01/2025 - 12/31/2025 335 1 incomplete06/07/2024
EP-A  EP for WELL NITRITE  9 Years01/01/2017 - 12/31/2025 335 1 done 06/24/2019
EP-A  EP for WELL RAD - GROSS ALPHA  9 Years 01/01/2017 - 12/31/2025 335 1 incomplete07/20/2016
EP-A  EP for WELL RAD - RADIUM 226/228 9 Years 01/01/2017 - 12/31/2025 335 1 incomplete07/20/2016
EP-A  EP for WELL RAD - URANIUM  9 Years 01/01/2017 - 12/31/2025 335 1 incomplete07/20/2016
EP-A  EP for WELL SOC  3 Years 01/01/2023 - 12/31/2025 335 1 incomplete08/16/2022
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 335 1 incomplete08/16/2022
POU-19  POU FOR ARSENIC REMOVAL ARSENIC  Yearly 01/01/2025 - 12/31/2025 335 6 incomplete04/30/2024

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
EP-A  EP for WELLARSENIC  3 Years01/01/200206/30/20071
EP-A  EP for WELLARSENIC  Quarterly07/01/200711/26/20101
EP-A  EP for WELLIOC  3 Years01/01/200212/31/20161
EP-A  EP for WELLNITRITE  3 Years01/01/200212/31/20161
POU-19  POU FOR ARSENIC REMOVALARSENIC  Quarterly04/01/201112/31/20116

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More information for this water system: SDWIS ID 3280
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