OHA Drinking Water Services
OR41
PWS ID: 00807 ---- SENECA, 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 ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 1,002 1 incomplete09/24/2019
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   5 07/17/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELL 1 ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,193 1 incomplete08/28/2019
EP-A  EP FOR WELL 1 IOC notes9 Years 01/01/2020 - 12/31/2028 1,002 1 incomplete08/28/2019
EP-A  EP FOR WELL 1 NITRATE  Yearly01/01/2026 - 12/31/2026 271 1 done 01/07/2026
EP-A  EP FOR WELL 1 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,002 1 incomplete09/24/2019
EP-A  EP FOR WELL 1 PFAS notes6 Months 01/01/2026 - 06/30/2026 87 1 incomplete10/15/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL 1 RAD - GROSS ALPHA  9 Years 01/01/2023 - 12/31/2031 2,097 1 incomplete08/28/2019
EP-A  EP FOR WELL 1 RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,193 1 incomplete08/28/2019
EP-A  EP FOR WELL 1 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,193 1 incomplete08/28/2019
EP-A  EP FOR WELL 1 SOC  3 Years 01/01/2026 - 12/31/2028 1,002 1 incomplete03/24/2025
EP-A  EP FOR WELL 1 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,002 1 incomplete03/24/2025

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200512/31/20115Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/200212/31/20025Sample Between June 1st and Sept 30th
EP-A  EP FOR WELL 1ARSENIC  3 Years01/01/200212/31/20161
EP-A  EP FOR WELL 1RAD - GROSS ALPHA  6 Years01/01/201712/31/20221
EP-A  EP FOR WELL 1RAD - GROSS ALPHA  9 Years01/01/200812/31/20161
EP-B  EP FOR WELL 2ARSENIC  3 Years01/01/200208/21/20021
EP-B  EP FOR WELL 2IOC  3 Years01/01/200208/21/20021
EP-B  EP FOR WELL 2NITRATE  Yearly01/01/200208/21/20021
EP-B  EP FOR WELL 2NITRITE  3 Years01/01/200208/21/20021
EP-B  EP FOR WELL 2SOC  3 Years01/01/200208/21/20021
EP-B  EP FOR WELL 2VOLATILE ORGANICS  3 Years01/01/200208/21/20021

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