OHA Drinking Water Services
OR41
PWS ID: 00252 ---- DAYTON, CITY OF

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   10 06/28/2024
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  Distribution System STAGE 2 DBP  Yearly 01/01/2026 - 12/31/2026 274 2 incomplete07/11/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGSXYLENES, TOTAL  Yearly01/01/2026 - 12/31/2026 274 1 incomplete 04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS IOC notes9 Years01/01/2020 - 12/31/2028 1,005 1 done 04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS NITRATE  Yearly 01/01/2026 - 12/31/2026 274 1 incomplete04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS NITRITE notes9 Years01/01/2020 - 12/31/2028 1,005 1 done 04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS PFAS notes6 Months 01/01/2026 - 06/30/2026 90 1 incomplete11/20/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS RAD - URANIUM  9 Years01/01/2023 - 12/31/2031 2,100 1 done 04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS SOC  3 Years 01/01/2026 - 12/31/2028 1,005 1 incomplete04/07/2025
EP-A  EP FOR MCDOUGAL WELLS & SPRINGS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,005 1 incomplete04/07/2025
EP-B  EP FOR WELLS ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/08/2025
EP-B  EP FOR WELLS IOC notes9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/08/2025
EP-B  EP FOR WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 274 1 incomplete04/08/2025
EP-B  EP FOR WELLS NITRITE notes9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/08/2025
EP-B  EP FOR WELLS PFAS notes6 Months 01/01/2026 - 06/30/2026 90 1 incomplete11/20/2025
  Initial monitoring - 2 samples only
EP-B  EP FOR WELLS RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/08/2025
EP-B  EP FOR WELLS RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,196 1 incomplete04/08/2025
EP-B  EP FOR WELLS RAD - URANIUM  9 Years01/01/2023 - 12/31/2031 2,100 1 done 04/08/2025
EP-B  EP FOR WELLS SOC  3 Years 01/01/2026 - 12/31/2028 1,005 1 incomplete04/08/2025
EP-B  EP FOR WELLS VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,005 1 incomplete04/08/2025

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200409/30/20131Sample between June 1 and Sept. 30.
DIST-A  Distribution SystemSTAGE 2 DBP  Quarterly10/01/201309/30/20142Sample in Nov, Feb, May, and Aug
DIST-A  Distribution SystemSTAGE 2 DBP  Quarterly10/01/202409/30/20252
DIST-A  Distribution SystemSTAGE 2 DBP  Yearly01/01/201508/30/20242Sample in Aug
EP-A  EP FOR MCDOUGAL WELLS & SPRINGSARSENIC  3 Years01/01/200212/31/20161
EP-A  EP FOR MCDOUGAL WELLS & SPRINGSRAD - URANIUM  6 Years01/01/200812/31/20131
EP-A  EP FOR MCDOUGAL WELLS & SPRINGSXYLENES, TOTAL   Quarterly01/01/201712/31/20171
EP-B  EP FOR WELLSARSENIC  3 Years01/01/200212/31/20161
EP-B  EP FOR WELLSIOC  3 Years01/01/200212/31/20161
EP-B  EP FOR WELLSNITRITE  3 Years01/01/200212/31/20161
EP-B  EP FOR WELLSRAD - URANIUM  6 Years01/01/200812/31/20131
EP-C  EP FOR PALMER/FLOWER LN WELLSARSENIC  3 Years01/01/200204/27/20051
EP-C  EP FOR PALMER/FLOWER LN WELLSIOC  3 Years01/01/200204/27/20051
EP-C  EP FOR PALMER/FLOWER LN WELLSNITRATE  Yearly01/01/200204/27/20051
EP-C  EP FOR PALMER/FLOWER LN WELLSNITRITE  3 Years01/01/200204/27/20051
EP-C  EP FOR PALMER/FLOWER LN WELLSSOC  3 Years01/01/200204/27/20051
EP-C  EP FOR PALMER/FLOWER LN WELLSVOLATILE ORGANICS  3 Years01/01/200204/27/20051
EP-D  EP FOR POST OFFICE WELL (FERRY ST.)ARSENIC  3 Years01/01/200204/27/20051
EP-D  EP FOR POST OFFICE WELL (FERRY ST.)IOC  3 Years01/01/200204/27/20051
EP-D  EP FOR POST OFFICE WELL (FERRY ST.)NITRATE  Yearly01/01/200204/27/20051
EP-D  EP FOR POST OFFICE WELL (FERRY ST.)NITRITE  3 Years01/01/200204/27/20051
EP-D  EP FOR POST OFFICE WELL (FERRY ST.)SOC  3 Years01/01/200204/27/20051
EP-D  EP FOR POST OFFICE WELL (FERRY ST.)VOLATILE ORGANICS  3 Years01/01/200204/27/20051

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