OHA Drinking Water Services
OR41
PWS ID: 00726 ---- WARREN WATER ASSOCIATION
Coliform Summary History

Note: Samples for a given monitoring period are due 10 days after period end date. Therefore the most recent monitoring periods may show zero samples reported. This does not mean the water system is out of compliance.

Number of Samples Reported
Abbreviations: TC+: Total Coliform Positive, EC+: E. Coli Positive
Include results older than 2022
Period End Date Routines Required Routines Reported Routine TC+ Routine EC+ Repeats Reported Repeat TC+ Repeat EC+ Period Type
May 31, 2025 2 000000MN
Apr 30, 2025 2 200000MN
Mar 31, 2025 2 200000MN
Feb 28, 2025 2 200000MN
Jan 31, 2025 2 200000MN
Dec 31, 2024 2 200000MN
Nov 30, 2024 2 200000MN
Oct 31, 2024 2 200000MN
Sep 30, 2024 2 200000MN
Aug 31, 2024 2 200000MN
Jul 31, 2024 2 200000MN
Jun 30, 2024 2 200000MN
May 31, 2024 2 200000MN
Apr 30, 2024 2 200000MN
Mar 31, 2024 2 200000MN
Feb 29, 2024 2 200000MN
Jan 31, 2024 2 200000MN
Dec 31, 2023 2 200000MN
Nov 30, 2023 2 200000MN
Oct 31, 2023 2 200000MN
Sep 30, 2023 2 200000MN
Aug 31, 2023 2 200000MN
Jul 31, 2023 2 200000MN
Jun 30, 2023 2 200000MN
May 31, 2023 2 200000MN
Apr 30, 2023 2 200000MN
Mar 31, 2023 2 200000MN
Feb 28, 2023 2 200000MN
Jan 31, 2023 2 200000MN
Dec 31, 2022 2 200000MN
Nov 30, 2022 2 200000MN
Oct 31, 2022 2 200000MN
Sep 30, 2022 2 200000MN
Aug 31, 2022 2 400000MN
Jul 31, 2022 2 200000MN
Jun 30, 2022 2 200000MN
May 31, 2022 2 200000MN
Apr 30, 2022 2 200000MN
Mar 31, 2022 2 200000MN
Feb 28, 2022 2 200000MN
Jan 31, 2022 2 200000MN
Include results older than 2022

More information for this water system: SDWIS ID 4305
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  ::  DW Source Protection
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