OHA Drinking Water Services
OR41
PWS ID: 95552 ---- COMBINED TRANSPORT LOGISTICS

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 Years01/01/2028 - 12/31/2028   5 09/02/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR WELL1,1-DICHLOROETHYLENE notesYearly01/01/2026 - 12/31/2026 270 1 incomplete 09/26/2025
 Seasonal sampling period:  04/01  thru  06/30
EP-A  EP FOR WELL1,1,1-TRICHLOROETHANE notesYearly01/01/2026 - 12/31/2026 270 1 incomplete 09/26/2025
 Seasonal sampling period:  07/01  thru  09/30
EP-A  EP FOR WELL ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,001 1 incomplete09/26/2025
EP-A  EP FOR WELL IOC  3 Years 01/01/2026 - 12/31/2028 1,001 1 incomplete09/26/2025
EP-A  EP FOR WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 270 1 incomplete09/26/2025
EP-A  EP FOR WELL NITRITE  3 Years 01/01/2026 - 12/31/2028 1,001 1 incomplete09/26/2025
EP-A  EP FOR WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 86 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,001 1 incomplete09/26/2025
EP-A  EP FOR WELL VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 270 1 incomplete09/26/2025

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