OHA Drinking Water Services
OR41
PWS ID: 93736 ---- UNION SCHOOL

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 08/06/2024
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP for WELL ARSENIC  9 Years 01/01/2026 - 12/31/2034 3,171 1 incomplete09/09/2025
EP-A  EP for WELL IOC  9 Years 01/01/2026 - 12/31/2034 3,171 1 incomplete09/09/2025
EP-A  EP for WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 249 1 incomplete09/09/2025
EP-A  EP for WELL NITRITE  9 Years 01/01/2026 - 12/31/2034 3,171 1 incomplete09/09/2025
EP-A  EP for WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 65 1 incomplete09/25/2025
  Initial monitoring - 2 samples only
EP-A  EP for WELL SOC  3 Years 01/01/2026 - 12/31/2028 980 1 incomplete09/09/2025
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 980 1 incomplete09/09/2025

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/201012/31/20115Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/200506/30/20095
EP-A  EP for WELLARSENIC  3 Years01/01/200512/31/20161
EP-A  EP for WELLDI(2-ETHYLHEXYL) PHTHALATE   Quarterly01/01/201106/30/20111
EP-A  EP for WELLDI(2-ETHYLHEXYL) PHTHALATE   Yearly01/01/201212/31/20141Annual sample to be collected during the 2nd quarter.
EP-A  EP for WELLIOC  3 Years01/01/200512/31/20161
EP-A  EP for WELLNITRITE  3 Years01/01/200512/31/20161
EP-A  EP for WELLSOC  3 Years01/01/200512/31/20161

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