OHA Drinking Water Services
OR41 00869 THE DALLES, CITY OF Classification: COMMUNITY
Contact: LARRY MCCOLLUM Phone: 541-298-2248 ext. 5010 View on Map
6780 RESERVOIR RD County: WASCO
THE DALLES, OR 97058 Activity Status: ACTIVE -- History
Population: 13,010 Number of Connections: 5,408
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 Approved Drinking Water Protection Plan: No
Treatment class: 4 Source Water Assessment: Yes
Filtration Endorsement Required: NoLast Survey Date:  Jul 19, 2023 - Outstanding Performer!
Sources
Facility ID Facility Name  -  Well Logs Activity Status Availability Source Type
EP-A EP FOR SOUTH FORK MILL CREEK A SW
SRC-AA SOUTH FORK MILL CREEK A Permanent SW
EP-B EP FOR LONE PINE WELL A GW
SRC-BA WELL #1 - LONE PINE - L110535 A Seasonal GW
EP-C EP FOR JORDAN ST WELL A GW
SRC-CA WELL #2 - JORDAN ST - WASC2428 A Seasonal GW
EP-D EP FOR MARKS WELL A GW
SRC-DA WELL #3 - MARKS - WASC2431 A Seasonal GW
Find Purchasers/Sellers


Treatment
Facility ID Facility Name Filter Type Giardia Removal
Credit
Treatment Process Treatment Objective
WTP-A TP FOR SOUTH FORK MILL CREEK Conventional Filtration 2.5-logFILTRATION, RAPID SAND PARTICULATE REMOVAL
HYPOCHLORINATION, POST DISINFECTION
INHIBITOR, POLYPHOSPHATE CORROSION CONTROL
PH ADJ-CAUSTIC SODA CORROSION CONTROL
FLUORIDATION OTHER
COAGULATION PARTICULATE REMOVAL
FLOCCULATION PARTICULATE REMOVAL
RAPID MIX PARTICULATE REMOVAL
SEDIMENTATION PARTICULATE REMOVAL
ACTIVATED CARBON, POWDERED TASTE / ODOR CONTROL
WTP-B TP FOR LONE PINE WELL RESID. MAINT. HYPOCHLORINATION OTHER
INHIBITOR, POLYPHOSPHATE CORROSION CONTROL
FLUORIDATION OTHER
WTP-C TP FOR JORDAN ST WELL RESID. MAINT. HYPOCHLORINATION OTHER
INHIBITOR, POLYPHOSPHATE CORROSION CONTROL
WTP-D TP FOR MARKS WELL RESID. MAINT. HYPOCHLORINATION OTHER
INHIBITOR, POLYPHOSPHATE CORROSION CONTROL

Consumer Confidence Reports (Last 5 Years)
For Year Date Received Date Certified
2023 Due 7/1/2024 Due 10/1/2024
2022 6/8/2023 6/8/2023
2021 7/5/2022 7/5/2022
2020 6/8/2021 6/8/2021
2019 10/2/2020 10/2/2020

Cross Connection/Backflow Prevention Information (Last 3 Records)
Enabling Authority Received Annual Summary
Report Received
Cross Connection
Fee Status
Yes (PDF) 2022 (PDF) 2024 - Paid
2023 - Paid
2022 - Paid
2021 - Paid
  2021 (PDF)
  2020 (PDF)


For further information on this public water system, click on the area of interest below:
System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3916

Need help? Email Drinking Water Services for assistance.