OHA Drinking Water Services
OR41
PWS ID: 00403 ---- IRRIGON, CITY OF

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 ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,095 1 done 04/09/2024
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   10incomplete07/01/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 364 1 incomplete11/05/2024
 Seasonal sampling period:  11/01  thru  11/30
EP-B  EP FOR WELLS 3 & 4 ARSENIC  9 Years 01/01/2026 - 12/31/2034 3,286 1 incomplete03/01/2018
EP-B  EP FOR WELLS 3 & 4 IOC notes9 Years 01/01/2020 - 12/31/2028 1,095 1 incomplete03/01/2018
EP-B  EP FOR WELLS 3 & 4 NITRATE  Yearly 01/01/2026 - 12/31/2026 364 1 incomplete01/02/2025
EP-B  EP FOR WELLS 3 & 4 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,095 1 incomplete03/01/2018
EP-B  EP FOR WELLS 3 & 4 RAD - GROSS ALPHA  6 Years 01/01/2026 - 12/31/2031 2,190 1 incomplete03/01/2022
EP-B  EP FOR WELLS 3 & 4 RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,190 1 incomplete06/10/2019
EP-B  EP FOR WELLS 3 & 4 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,190 1 incomplete06/10/2019
EP-B  EP FOR WELLS 3 & 4 SOC  3 Years 01/01/2026 - 12/31/2028 1,095 1 incomplete08/04/2025
EP-B  EP FOR WELLS 3 & 4 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,095 1 incomplete08/04/2025

5  secs
Show Only Active

Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  3 Years01/01/200512/31/20131Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200412/31/20041Sample Between June 1st and Sept 30th Each Year
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/201312/31/20142Sample during November
EP-A  EP FOR DEEP & SHALLOW WELLSARSENIC  3 Years01/01/200204/17/20091
EP-A  EP FOR DEEP & SHALLOW WELLSIOC  9 Years01/01/200204/17/20091Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR DEEP & SHALLOW WELLSNITRATE  Yearly01/01/200212/31/20051
EP-A  EP FOR DEEP & SHALLOW WELLSNITRITE  9 Years01/01/200204/17/20091Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR DEEP & SHALLOW WELLSRAD - GROSS ALPHA  3 Years01/01/200804/17/20091Schedule based on 4 qtrs of results in 2007 - BG
EP-A  EP FOR DEEP & SHALLOW WELLSRAD - RADIUM 226/228  9 Years01/01/200804/17/20091Schedule based on 4 qtrs of results in 2007 - BG
EP-A  EP FOR DEEP & SHALLOW WELLSRAD - URANIUM  3 Years01/01/200804/17/20091Schedule based on 4 qtrs of results in 2007 - BG
EP-A  EP FOR DEEP & SHALLOW WELLSRAD - URANIUM  Quarterly04/10/200712/31/20071
EP-A  EP FOR DEEP & SHALLOW WELLSSOC  3 Years01/01/200204/17/20091
EP-A  EP FOR DEEP & SHALLOW WELLSVOLATILE ORGANICS  3 Years01/01/200204/17/20091
EP-B  EP FOR WELLS 3 & 4IOC  3 Years01/01/200912/31/20101
EP-B  EP FOR WELLS 3 & 4NITRITE  3 Years01/01/200912/31/20101
EP-B  EP FOR WELLS 3 & 4RAD - RADIUM 226/228  6 Years01/01/200812/31/20131
EP-B  EP FOR WELLS 3 & 4RAD - URANIUM  6 Years01/01/200812/31/20131

Show Only Active


More information for this water system: SDWIS ID 3740
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
Lead & Copper  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA  ::  DW Source Protection
PFAS data are now located on the Chemical Results 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  ::  DW Source Protection
Main menu:
Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules
Need help? Email Drinking Water Services for assistance.Staff/Partner Login