OHA Drinking Water Services
OR41
PWS ID: 95630 ---- COLUMBIA HELICOPTERS

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 notes6 Months 01/01/2026 - 06/30/2026 117 10 incomplete09/11/2025
EP-A  EP FOR WELL #1 ARSENIC  3 Years01/01/2026 - 12/31/2028 1,032 1 done 01/28/2026
EP-A  EP FOR WELL #1 IOC  3 Years01/01/2026 - 12/31/2028 1,032 1 done 01/28/2026
EP-A  EP FOR WELL #1 NITRATE  Yearly01/01/2026 - 12/31/2026 301 1 done 01/28/2026
EP-A  EP FOR WELL #1 NITRITE  3 Years01/01/2026 - 12/31/2028 1,032 1 done 01/28/2026
EP-A  EP FOR WELL #1 PFAS notes6 Months 01/01/2026 - 06/30/2026 117 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL #1 SOC  Yearly01/01/2026 - 12/31/2026 301 1 done 01/20/2026
EP-A  EP FOR WELL #1 VOLATILE ORGANICS  Yearly01/01/2026 - 12/31/2026 301 1 done 01/20/2026
EP-B  EP FOR WELL #2 ARSENIC  3 Years01/01/2026 - 12/31/2028 1,032 1 done 01/28/2026
EP-B  EP FOR WELL #2 IOC  3 Years01/01/2026 - 12/31/2028 1,032 1 done 01/28/2026
EP-B  EP FOR WELL #2 NITRATE  Yearly01/01/2026 - 12/31/2026 301 1 done 01/28/2026
EP-B  EP FOR WELL #2 NITRITE  3 Years01/01/2026 - 12/31/2028 1,032 1 done 01/28/2026
EP-B  EP FOR WELL #2 PFAS notes6 Months 01/01/2026 - 06/30/2026 117 1 incomplete
  Initial monitoring - 2 samples only
EP-B  EP FOR WELL #2 SOC  Yearly01/01/2026 - 12/31/2026 301 1 done 01/20/2026
EP-B  EP FOR WELL #2 VOLATILE ORGANICS  Yearly01/01/2026 - 12/31/2026 301 1 done 01/20/2026

5  secs
Show Expired



More information for this water system: SDWIS ID 5520

Information for all water systems:

Main menu:
Need help? Email Drinking Water Services for assistance.Staff/Partner Login