OHA Drinking Water Services
OR41
PWS ID: 91556 ---- CASCADE GORGE PROPERTIES

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 LEAD & COPPER  6 Months 01/01/2026 - 06/30/2026 96 5 incomplete06/04/2025
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 01/01/2026 - 03/31/2026 5 1 incomplete10/09/2025
EP-A  EP FOR WELL AND CREEK ARSENIC notesYearly 01/01/2026 - 12/31/2026 280 1 incomplete04/02/2025
EP-A  EP FOR WELL AND CREEK IOC  Yearly 01/01/2026 - 12/31/2026 280 1 incomplete01/27/2025
EP-A  EP FOR WELL AND CREEK NITRATE  Yearly 01/01/2026 - 12/31/2026 280 1 incomplete01/27/2025
EP-A  EP FOR WELL AND CREEK NITRITE  Yearly 01/01/2026 - 12/31/2026 280 1 incomplete01/27/2025
EP-A  EP FOR WELL AND CREEK PFAS notesQuarterly 01/01/2026 - 03/31/2026 5 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR WELL AND CREEK RAD - GROSS ALPHA  6 Years 01/01/2026 - 12/31/2031 2,106 1 incomplete03/27/2024
EP-A  EP FOR WELL AND CREEK RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,202 1 incomplete02/28/2023
EP-A  EP FOR WELL AND CREEK RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,202 1 incomplete02/28/2023
EP-A  EP FOR WELL AND CREEK SOC notes3 Years 01/01/2026 - 12/31/2028 1,011 1 incomplete01/27/2025
EP-A  EP FOR WELL AND CREEK VOLATILE ORGANICS notes3 Years 01/01/2026 - 12/31/2028 1,011 1 incomplete04/02/2025

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