OHA Drinking Water Services
OR41 01233 DEER ISLAND WATERWORKS Classification: COMMUNITY
Contact: JUSTIN MCMULLEN Phone: 503-396-1193 View on Map
2034 COLUMBIA BLVD PMB 288 County: COLUMBIA
ST HELENS, OR 97051 Activity Status: Active -- History
Population: 90 Number of Connections: 33
Operating Period: January 1 to December 31 Regulating Agency: COLUMBIA COUNTY
Certified Operator(s) Owner Type: PRIVATE
Required: Y Licensed By: N/A
Distribution class: S Last Survey Date:  Dec 12, 2025
Treatment class: None
Filtration Endorsement Required: No Source Water Protection Status

Sources
Facility ID Facility Name  -  Well Logs Activity Status Availability Source Type
EP-A EP for WELL A GW
SRC-AA WELL - L108506 A Permanent GW
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Treatment
Facility ID Facility Name Filter Type Giardia Removal
Credit
Treatment Process Treatment Objective
WTP-A TP FOR WELL RESID. MAINT. HYPOCHLORINATION OTHER
PH ADJ-CAUSTIC SODA CORROSION CONTROL

Consumer Confidence Reports (Last 5 Years)
For Year Date Received Date Certified
2025 Due 7/1/2026 Due 7/11/2026
2024 Not received Not received
2023 Not received Not received
2022 Not received Not received
2021 Not received Not received

Cross Connection/Backflow Prevention Information (Last 5 Years)
Enabling Authority Received Annual Summary Report Cross Connection Fee Status
Yes (pdf) 2025 - Due 3/31/2026
2024 - Received (pdf)
2023 - Not received
2022 - Not received
2021 - Not received
2026 - Paid
2025 - Paid
2024 - Paid Late
2023 - Paid Late
2022 - Paid Late