OHA Drinking Water Services
OR41 00869 THE DALLES, CITY OF Classification: COMMUNITY
Contact: TYLER MITCHELL 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 Last Survey Date:  Jul 19, 2023 - Outstanding Performer!
Treatment class: 4
Filtration Endorsement Required: No Source Water Protection Status

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
2023 Due 7/1/2024 Due 10/1/2024
2023 6/17/2024 6/17/2024
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) 2023 (PDF) 2025 - Paid
2024 - Paid
2023 - Paid
2022 - Paid
2021 - Paid
  2022 (PDF)
  2021 (PDF)

More information for this water system: SDWIS ID 3916
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