OHA Drinking Water Services
OR41 00922 VERNONIA, CITY OF Classification: COMMUNITY
Contact: JEFFREY BURCH Phone: 503-429-6921 View on Map
1001 BRIDGE ST County: COLUMBIA
VERNONIA, OR 97064 Activity Status: Active -- History
Population: 2,100 Number of Connections: 975
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:  Sep 27, 2022
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 ROCK CREEK A SW
SRC-AA ROCK CREEK 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 ROCK CREEK Conventional Filtration 2.5-logFILTRATION, RAPID SAND PARTICULATE REMOVAL
GASEOUS CHLORINATION, POST DISINFECTION
PH/ALKA ADJ-SODA ASH CORROSION CONTROL
COAGULATION PARTICULATE REMOVAL
FLOCCULATION PARTICULATE REMOVAL
PH ADJUSTMENT, PRE PARTICULATE REMOVAL
RAPID MIX PARTICULATE REMOVAL
SEDIMENTATION PARTICULATE REMOVAL

Consumer Confidence Reports (Last 5 Years)
For Year Date Received Date Certified
2024 8/22/2025 8/22/2025
2023 8/6/2024 8/6/2024
2022 10/25/2023 8/10/2023
2021 9/20/2022 9/20/2022
2020 7/16/2021 7/16/2021

Cross Connection/Backflow Prevention Information (Last 5 Years)
Enabling Authority Received Annual Summary Report Cross Connection Fee Status
Yes (pdf) 2024 - Received (pdf)
2023 - Received (pdf)
2022 - Received (pdf)
2021 - Received (pdf)
2020 - Received (pdf)
 2025 - Paid
2024 - Paid
2023 - Paid
2022 - Paid
2021 - Paid

More information for this water system: SDWIS ID 3998
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