CAPITAL INVESTMENTS | WATER

Well 6 Cathodic Protection System and Reservoir Interior Painting

Well No. 6.

DESCRIPTION

PROJECT ID: W 12.0, W 13.0
ESTIMATED COST: $282,000*
ACTUAL COST: TBD
  • Install a cathodic protection system in the interior of the reservoir
  • Uses relatively inert anodes connected to a power supply
  • System will be suspended inside the reservoir, protecting reservoir from corrosion
  • Piping will need protective coat to prevent contamination
  • After painting, reservoir will need to be disinfected before refilling

WHY IT’S NEEDED

The Well No. 6, Reservoir No. 1 does not have a cathodic protection system, while the newer Reservoir No. 2 does. Steel naturally reacts with water and oxygen, returning to its more stable chemical state of iron oxide. Cathodic protection extends the life of a steel water reservoir by providing a sacrificial anode within the reservoir.

The reservoir was built in 1991 and the interior hasn’t ever been recoated. Without previous cathodic protection, a new coat is needed.

* Initial projected costs were $62,000 for W 12.0 and $220,000 for W 13.0

PROJECT STATUS:
In Progress
PROJECT MILESTONES

February 2020

Projects W 12.0 and W 13.0 are combined and put out for bid.

March 2020

A contract was awarded to Columbia Industrial Coatings, LLC after receiving 7 bids.

Work begins, with expected completion in May 2020.

LAST UPDATED: 03/04/20

City of Hermiston
180 NE 2nd Street, Hermiston, OR 97838
Phone: (541) 567-5521 | TTY/TDD @ 1-800-735-2900
Email: city@hermiston.or.us

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