OHA Drinking Water Services
OR41 00370 BLACK MOUNTAIN WATER DISTRICT Classification: COMMUNITY
Contact: NANCY ARNSON OR BRUCE WILCOX Phone: 541-720-0514 View on Map
145 W MOORE AVE County: MORROW
HERMISTON, OR 97838 Activity Status: Active -- History
Population: 43 Number of Connections: 88
Operating Period: January 1 to December 31 Regulating Agency: REGION 1
Certified Operator(s) Owner Type: PRIVATE
Required: Y Licensed By: N/A
Distribution class: S Last Survey Date:  Oct 15, 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 SPRINGS 1 & 2 A GW
SRC-AA SPRING #1 A Permanent GW
SRC-AB SPRING #2 A Permanent GW
EP-B EP FOR SPRING #3 A GW
SRC-BA SPRING #3 A Permanent GW
EP-C EP FOR SPRINGS 4 & 5 A GW
SRC-CA SPRING #4 A Permanent GW
SRC-CB SPRING #5 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 SPRINGS 1 & 2 RESID. MAINT. HYPOCHLORINATION OTHER
WTP-B TP FOR SPRING #3 RESID. MAINT. HYPOCHLORINATION OTHER
WTP-C TP FOR SPRINGS #4 & #5 RESID. MAINT. HYPOCHLORINATION OTHER

Consumer Confidence Reports (Last 5 Years)
For Year Date Received Date Certified
2025 Due 7/1/2026 Due 7/11/2026
2024 5/22/2025 5/22/2025
2023 5/19/2024 5/19/2024
2022 7/21/2023 7/21/2023
2021 7/1/2022 7/1/2022

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 - Received (pdf)
2021 - Received (pdf)
2026 - Paid
2025 - Paid
2024 - Paid
2023 - Paid
2022 - Paid