OHA Drinking Water Services
OR41
PWS ID: 00134 ---- KELSO WATER ASSN

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 06/20/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 281 1 incomplete09/23/2025
  Seasonal sampling period:   09/01   thru   09/30
EP-A  EP FOR WELLS #3 & #4 ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,203 1 incomplete10/14/2014
EP-A  EP FOR WELLS #3 & #4 IOC notes9 Years 01/01/2020 - 12/31/2028 1,012 1 incomplete10/14/2014
EP-A  EP FOR WELLS #3 & #4 NITRATE  Yearly 01/01/2026 - 12/31/2026 281 1 incomplete10/31/2024
EP-A  EP FOR WELLS #3 & #4 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,012 1 incomplete10/14/2014
EP-A  EP FOR WELLS #3 & #4 PFAS notes6 Months 01/01/2026 - 06/30/2026 97 1 incomplete09/09/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR WELLS #3 & #4 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,203 1 incomplete12/29/2010
EP-A  EP FOR WELLS #3 & #4 RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,203 1 incomplete12/29/2010
EP-A  EP FOR WELLS #3 & #4 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,203 1 incomplete12/29/2010
EP-A  EP FOR WELLS #3 & #4 SOC  3 Years 01/01/2026 - 12/31/2028 1,012 1 incomplete11/21/2025
EP-A  EP FOR WELLS #3 & #4 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,012 1 incomplete11/28/2022

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