Page 83 - Yucaipa Valley Water District - Board Workshop
P. 83
Workshop Memorandum No. 16-008 Page 3 of 9
Director Memorandum 16-0xx
Date: January 12, 2016
Prepared By: Kevin King, Operations Manager
Subject: Change Order No. 1 WRWRF Digester Cleaning and Cover Replacement
Project for Coating Repair and Coatings Change to Epoxy
Recommendation: That the Board approves Change Order No. 1 for a sum not to exceed
$67,347.
After the completion of cleaning Digester Nos. 1 and 2, Harper and Associates conducted an
inspection of the interior of the digesters. At this time it was determined that the coatings on the
mixing equipment had failed and showing signs of corrosion.
Working with Harper & Associates and Sherwin Williams it was determined that the equipment
needed to be sand basted to white metal and recoated with an epoxy coating at a cost of $37,998.
Also the original specification for the coatings on the interior of the digesters called for a
polyurethane coating system. Harper recommended not using the polyurethane coating on the
interior of the digester domes due to the recent failures they have experienced. Harper’s
recommendation is to use the same epoxy coating system that is being used on the mixing
equipment. The total cost to utilize the epoxy coating system on the interior of the digester domes
is $29,349. District staff agrees with the proposed recommendations.
Therefore, the total cost for completing this additional work as Change Order No. 1 is $67,347.
Percentage Change
Contract Contract from Original Bid
Changes Amount Amount Reference
Original Bid Amount $2,175,000 - - DM 15-041
Change Order No. 1 $67,347 $2,242,347 3.10% increase DM 16-0xx
District staff recommends that the Board approves Change Order No. 1 for an increase of $67,347
changing the current contract amount from $2,175,000 to 2,242,347.
Financial Considerations:
This project is being funded from Sewer Division, Depreciation Reserves, #03-10310.
Yucaipa Valley Water District - January 12, 2016 - Page 79 of 279
Director Memorandum 16-0xx
Date: January 12, 2016
Prepared By: Kevin King, Operations Manager
Subject: Change Order No. 1 WRWRF Digester Cleaning and Cover Replacement
Project for Coating Repair and Coatings Change to Epoxy
Recommendation: That the Board approves Change Order No. 1 for a sum not to exceed
$67,347.
After the completion of cleaning Digester Nos. 1 and 2, Harper and Associates conducted an
inspection of the interior of the digesters. At this time it was determined that the coatings on the
mixing equipment had failed and showing signs of corrosion.
Working with Harper & Associates and Sherwin Williams it was determined that the equipment
needed to be sand basted to white metal and recoated with an epoxy coating at a cost of $37,998.
Also the original specification for the coatings on the interior of the digesters called for a
polyurethane coating system. Harper recommended not using the polyurethane coating on the
interior of the digester domes due to the recent failures they have experienced. Harper’s
recommendation is to use the same epoxy coating system that is being used on the mixing
equipment. The total cost to utilize the epoxy coating system on the interior of the digester domes
is $29,349. District staff agrees with the proposed recommendations.
Therefore, the total cost for completing this additional work as Change Order No. 1 is $67,347.
Percentage Change
Contract Contract from Original Bid
Changes Amount Amount Reference
Original Bid Amount $2,175,000 - - DM 15-041
Change Order No. 1 $67,347 $2,242,347 3.10% increase DM 16-0xx
District staff recommends that the Board approves Change Order No. 1 for an increase of $67,347
changing the current contract amount from $2,175,000 to 2,242,347.
Financial Considerations:
This project is being funded from Sewer Division, Depreciation Reserves, #03-10310.
Yucaipa Valley Water District - January 12, 2016 - Page 79 of 279
