OHA Drinking Water Services
OR41
PWS ID: 94717 ---- COLUMBIA RIVER 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 notes3 Years01/01/2026 - 12/31/2026   5 07/26/2023
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP for WELL ARSENIC  9 Years01/01/2023 - 12/31/2031 2,812 1 incomplete08/02/2021
EP-A  EP for WELL IOC notes9 Years01/01/2020 - 12/31/2028 1,717 1 done 08/02/2021
EP-A  EP for WELL NITRATE  Yearly01/01/2024 - 12/31/2024 256 1 incomplete04/19/2023
EP-A  EP for WELL NITRITE notes9 Years01/01/2020 - 12/31/2028 1,717 1 done 08/02/2021
EP-A  EP for WELL SOC  3 Years01/01/2023 - 12/31/2025 621 1 incomplete08/02/2021
EP-A  EP for WELL VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 621 1 incomplete08/02/2021

8  secs
Show Only Active

Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200212/31/20045Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200812/31/20135
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/200512/31/20055
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/201412/31/20165
EP-A  EP for WELLARSENIC  3 Years01/01/200212/31/20131
EP-A  EP for WELLNITRATE  Quarterly04/01/200509/30/20121
EP-A  EP for WELLNITRATE  Yearly01/01/200203/31/20051Has NO3 Treatment as of 05/01/2002 - Sample in the 4th Quarter

Show Only Active


More information for this water system: SDWIS ID 1907
System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
Coliform Summary  ::  Coliform Results  ::  Coliform Schedules  ::  LT2  ::  GW/GWUDI Source Details  ::  Plan Review  ::  Annual Fee
Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins  ::  PFAS
Lead & Copper  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA
Corrosion Control has moved to the Lead & Copper page.
Information for all water systems:
Water System Inventory  ::  Water System Surveys  ::  Outstanding Performers  ::  Treatment Plant Inspections  ::  Treatment  ::  Plan Reviews
Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Deficiencies  ::  System Scores  ::  Exceedances  ::  Public Notices  ::  Service Lines
Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Fluoride  ::  Certification List
Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules
Need help? Email Drinking Water Services for assistance.Staff/Partner Login