OHA Drinking Water Services
OR41 00869 THE DALLES, CITY OF Classification: COMMUNITY
Contact: LARRY MCCOLLUM Phone: 541-298-2248 ext. 5000
6780 RESERVOIR RD County: WASCO
THE DALLES, OR 97058 Activity Status: ACTIVE -- History
Population: 12,494 Number of Connections: 5,010
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 17, 2018 - 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
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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
2021       Jul 05, 2022 Jul 05, 2022
2020       Jun 08, 2021 Jun 08, 2021
2019       Oct 02, 2020 Oct 02, 2020
2018       Jun 26, 2019 Jun 26, 2019
2017       Jul 05, 2018 Jul 05, 2018

Cross Connection/Backflow Prevention Information (Last 3 Records)
Enabling Authority Received Annual Summary
Report Received
Fee Invoice Paid
Yes (PDF) 2021 (PDF) 2022
  2020 (PDF) 2021
  2019 (PDF) 2020


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