OHA Drinking Water Services
OR41 01139 MIDLAND WATER ASSOCIATION Classification: COMMUNITY
Contact: MELANIE HUDSON Phone: 503-709-7801 View on Map
PO BOX 922 County: COLUMBIA
CLATSKANIE, OR 97016 Activity Status: Active -- History
Population: 160 Number of Connections: 72
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: 1 Last Survey Date:  Nov 27, 2025
Treatment class: 2
Filtration Endorsement Required: Yes Source Water Protection Status

Sources
Facility ID Facility Name Activity Status Availability Source Type
EP-A EP FOR COMBINED CREEK/SPRINGS A SW
SRC-AA GRAHAM CREEK A Permanent SW
SRC-AB SPRING #1 (UPPER) A Permanent SW
SRC-AC SPRING #2 (LOWER) A Permanent SW
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Treatment
Facility ID Facility Name Filter Type Giardia Removal
Credit
Treatment Process Treatment Objective
WTP-A TP FOR COMBINED CREEK/SPRINGS Direct Filtration 2.0-logFILTRATION, RAPID SAND PARTICULATE REMOVAL
HYPOCHLORINATION, POST DISINFECTION
COAGULATION PARTICULATE REMOVAL
FLOCCULATION PARTICULATE REMOVAL

Consumer Confidence Reports (Last 5 Years)
For Year Date Received Date Certified
2025 Due 7/1/2026 Due 7/11/2026
2024 7/19/2025 7/19/2025
2023 7/1/2024 10/1/2024
2022 1/2/2024 1/2/2024
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 - Received (pdf)
2022 - Not received
2021 - Received (pdf)
2026 - Paid
2025 - Paid
2024 - Paid
2023 - Paid Late
2022 - Paid Late