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: | $240,423.75** |
- 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.
** This project came in about $42,000 under the original estimate because of a number of very competitive bids from local contractors as well as efficiencies gained by combining the two original projects in to one.
PROJECT STATUS:
Complete
PROJECT MILESTONES
May 2020
Contractors complete most of the work, with minor punchlist items expected in June before project closeout and final costs are known.
March 2020
A contract was awarded to Columbia Industrial Coatings, LLC after receiving 7 bids.
Work begins, with expected completion in May 2020.
February 2020
Projects W 12.0 and W 13.0 are combined and put out for bid.
LAST UPDATED: 04/22/26
