OHA Drinking Water Services
OR41
PWS ID: 91894 ---- WILLAMETTANS, THE

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 01/01/2026 - 06/30/2026 163 5 incomplete11/11/2025
EP-A  EP FOR WELLS ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,078 1 incomplete10/16/2023
EP-A  EP FOR WELLS IOC  3 Years 01/01/2026 - 12/31/2028 1,078 1 incomplete10/16/2023
EP-A  EP FOR WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 347 1 incomplete10/14/2025
EP-A  EP FOR WELLS NITRITE  3 Years 01/01/2026 - 12/31/2028 1,078 1 incomplete10/16/2023
EP-A  EP FOR WELLS RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,269 1 incomplete11/07/2024
EP-A  EP FOR WELLS RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,269 1 incomplete11/07/2024
EP-A  EP FOR WELLS RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,269 1 incomplete11/07/2024
EP-A  EP FOR WELLS SOC  Yearly 01/01/2026 - 12/31/2026 347 1 incomplete10/14/2025
EP-A  EP FOR WELLS VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 347 1 incomplete10/14/2025

5  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200809/30/20225Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/200206/30/20025
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/200312/31/20055Sample Between June 1st and Sept 30th
EP-A  EP FOR WELLSARSENIC  3 Years01/01/200212/31/20101
EP-A  EP FOR WELLSARSENIC  9 Years01/01/201112/31/20221
EP-A  EP FOR WELLSDI(2-ETHYLHEXYL) PHTHALATE   Quarterly10/01/201003/31/20111
EP-A  EP FOR WELLSDI(2-ETHYLHEXYL) PHTHALATE   Yearly01/01/201212/31/20221
EP-A  EP FOR WELLSIOC  3 Years01/01/200212/31/20101
EP-A  EP FOR WELLSIOC  9 Years01/01/201112/31/20221
EP-A  EP FOR WELLSNITRITE  3 Years01/01/200212/31/20071
EP-A  EP FOR WELLSNITRITE  9 Years01/01/200812/31/20221
EP-A  EP FOR WELLSRAD - GROSS ALPHA  9 Years01/01/200812/31/20221
EP-A  EP FOR WELLSRAD - GROSS ALPHA  Quarterly01/01/202306/30/20241
EP-A  EP FOR WELLSRAD - RADIUM 226/228  9 Years01/01/200812/31/20221
EP-A  EP FOR WELLSRAD - RADIUM 226/228  Quarterly01/01/202306/30/20241
EP-A  EP FOR WELLSRAD - URANIUM  9 Years01/01/200812/31/20221
EP-A  EP FOR WELLSRAD - URANIUM  Quarterly01/01/202306/30/20241
EP-A  EP FOR WELLSSOC  3 Years01/01/200212/31/20221
EP-A  EP FOR WELLSVOLATILE ORGANICS  3 Years01/01/200212/31/20221

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More information for this water system: SDWIS ID 1079
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