OHA Drinking Water Services
OR41
PWS ID: 00798 ---- SEAL ROCK WATER DISTRICT

See also: Coliform Schedules  ::  LT2 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 ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 995 1 incomplete08/03/2011
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   20 06/18/2024
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  Distribution System STAGE 2 DBP  Quarterly 04/01/2026 - 06/30/2026 80 2 incomplete11/12/2025
EP-C  EP FOR BEAVER CREEK ARSENIC  Yearly 01/01/2026 - 12/31/2026 264 1 incomplete04/02/2025
EP-C  EP FOR BEAVER CREEK IOC  Yearly 01/01/2026 - 12/31/2026 264 1 incomplete04/02/2025
EP-C  EP FOR BEAVER CREEK NITRATE  Yearly 01/01/2026 - 12/31/2026 264 1 incomplete04/02/2025
EP-C  EP FOR BEAVER CREEK NITRITE  Yearly 01/01/2026 - 12/31/2026 264 1 incomplete04/02/2025
EP-C  EP FOR BEAVER CREEK PFAS notesQuarterly 04/01/2026 - 06/30/2026 80 1 incomplete
  Initial monitoring - 4 quarters only
EP-C  EP FOR BEAVER CREEK RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,186 1 incomplete10/09/2024
EP-C  EP FOR BEAVER CREEK RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,186 1 incomplete10/09/2024
EP-C  EP FOR BEAVER CREEK RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,186 1 incomplete10/09/2024
EP-C  EP FOR BEAVER CREEK SOC  Quarterly 04/01/2026 - 06/30/2026 80 1 incomplete01/14/2026
EP-C  EP FOR BEAVER CREEK VOLATILE ORGANICS  Quarterly 04/01/2026 - 06/30/2026 80 1 incomplete01/14/2026

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200412/31/20061Monitoring reduction granted effective 01/01/2007 - BG
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200709/30/20131Sample between June 1 and Sept. 30.
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200212/31/202120Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  6 Months07/01/202212/31/202340Collect samples from cold water, drinking water taps.
DIST-A  Distribution SystemSTAGE 2 DBP  Quarterly10/01/201309/30/20142Sample in Dec, Mar, June, and Sept
DIST-A  Distribution SystemSTAGE 2 DBP  Yearly01/01/201509/30/20222Collect two dual sample sets every September, one at 1801 NW Canal St. and one at 540 SE 123rd St.
EP-A  EP FOR TOLEDO WATER UTILITIESTETRACHLOROETHYLENE   Quarterly10/01/200612/31/20071Qtrly until tank issue resolved; tank relined 9/07
EP-C  EP FOR BEAVER CREEKRAD - GROSS ALPHA  Quarterly04/01/202206/30/20241
EP-C  EP FOR BEAVER CREEKRAD - RADIUM 226/228  Quarterly04/01/202206/30/20241
EP-C  EP FOR BEAVER CREEKRAD - URANIUM  Quarterly04/01/202206/30/20241

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