OHA Drinking Water Services
OR41
PWS ID: 00668 ---- ROCKWOOD PUD

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 notesYearly 01/01/2026 - 12/31/2026 246 30 incomplete07/17/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2026 - 06/30/2026 62 8 incomplete02/19/2026
EP-C  EP FOR CASCADE WELLS ARSENIC  3 Years 01/01/2026 - 12/31/2028 977 1 incomplete07/01/2025
EP-C  EP FOR CASCADE WELLS IOC  3 Years 01/01/2026 - 12/31/2028 977 1 incomplete07/01/2025
EP-C  EP FOR CASCADE WELLS NITRATE  Yearly01/01/2026 - 12/31/2026 246 1 done 03/18/2026
EP-C  EP FOR CASCADE WELLS NITRITE  3 Years 01/01/2026 - 12/31/2028 977 1 incomplete07/01/2025
EP-C  EP FOR CASCADE WELLS PFAS notesQuarterly 04/01/2026 - 06/30/2026 62 1 incomplete03/18/2026
  Initial monitoring - 4 quarters only
EP-C  EP FOR CASCADE WELLS RAD - GROSS ALPHA notes9 Years 01/01/2023 - 12/31/2031 2,072 1 incomplete12/07/2020
EP-C  EP FOR CASCADE WELLS RAD - RADIUM 226/228notes9 Years 01/01/2023 - 12/31/2031 2,072 1 incomplete12/07/2020
EP-C  EP FOR CASCADE WELLS RAD - URANIUM notes9 Years 01/01/2023 - 12/31/2031 2,072 1 incomplete12/07/2020
EP-C  EP FOR CASCADE WELLS SOC notes3 Years 01/01/2026 - 12/31/2028 977 2 incomplete12/04/2025
EP-C  EP FOR CASCADE WELLS VOLATILE ORGANICS notes3 Years 01/01/2026 - 12/31/2028 977 1 incomplete07/01/2025

4  secs
Show Expired