OHA Drinking Water Services
OR41 06054 BIG OAK MARINA Classification: COMMUNITY
Contact: DOUG PIHLAJA Phone: 503-289-7879 View on Map
250 NE TOMAHAWK ISLAND RD County: MULTNOMAH
PORTLAND, OR 97217 Activity Status: Active Jul 11, 2022 -- History
Population: 30 Number of Connections: 25
Operating Period: January 1 to December 31 Regulating Agency: MULTNOMAH COUNTY
Certified Operator(s) Owner Type: PRIVATE
Required: Y Licensed By: N/A
Distribution class: S Last Survey Date:  May 27, 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 A Permanent GW
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Treatment
Facility ID Facility Name Filter Type Giardia Removal
Credit
Treatment Process Treatment Objective

Consumer Confidence Reports (Last 5 Years)
For Year Date Received Date Certified
2025 Due 7/1/2026 Due 7/11/2026
2024 11/13/2025 11/13/2025
2023 8/1/2024 9/27/2024
2022 Not required Not required
2021 Not required Not required

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 required
2021 - Not required
2026 - Unpaid Late
2025 - Paid
2024 - Paid
2023 - Not required
2022 - Not required