OHA Drinking Water Services
OR41 00932 WARRENTON, CITY OF Classification: COMMUNITY
Contact: DAVE DAVIS Phone: 503-738-7809 View on Map
PO BOX 250 County: CLATSOP
WARRENTON, OR 97146 Activity Status: Active -- History
Population: 9,100 Number of Connections: 3,737
Operating Period: January 1 to December 31 Regulating Agency: REGION 1
Certified Operator(s) Owner Type: LOCAL GOVERNMENT
Required: Y Licensed By: N/A
Distribution class: 2 Last Survey Date:  Nov 08, 2023
Treatment class: 2
Filtration Endorsement Required: No Source Water Protection Status

Sources
Facility ID Facility Name Activity Status Availability Source Type
EP-A EP FOR WTP (LEWIS & CLARK RIVER/CREEK) A SW
SRC-AA LEWIS & CLARK RIVER A Seasonal SW
SRC-AB BIG SOUTH FORK-LEWIS/CLARK RIV A Permanent SW
SRC-AC LITTLE SO.FORK-LEWIS/CLARK RIV A Permanent SW
SRC-AD CAMP "C" CREEK A Permanent SW
SRC-AE RAW WATER RESERVOIR A Permanent SW
Find Purchasers/Sellers


Treatment
Facility ID Facility Name Filter Type Giardia Removal
Credit		 Treatment Process Treatment Objective
WTP-A TP FOR (LEWIS & CLARK RIVER/CREEK) MEMBRANE FILTRATION 2.5-logFILTRATION, MEMBRANE PARTICULATE REMOVAL
HYPOCHLORINATION, POST DISINFECTION
FLUORIDATION OTHER
COAGULATION PARTICULATE REMOVAL
MICROSCREENING PARTICULATE REMOVAL

Consumer Confidence Reports (Last 5 Years)
For Year Date Received Date Certified
2024 7/17/2025 7/17/2025
2023 6/14/2024 6/14/2024
2022 6/8/2023 6/8/2023
2021 Not received 6/6/2022
2020 5/24/2021 5/24/2021

Cross Connection/Backflow Prevention Information (Last 5 Years)
Enabling Authority Received Annual Summary Report Cross Connection Fee Status
Yes (pdf) 2024 - Received (pdf)
2023 - Received (pdf)
2022 - Received (pdf)
2021 - Received (pdf)
2020 - Received (pdf)
 2025 - Paid
2024 - Paid
2023 - Paid
2022 - Paid
2021 - Paid

More information for this water system: SDWIS ID 3918
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