The approved 2020 Capital Projects Budget includes $875,000 for painting and maintenance of the west 6-million gallon water tank located south of the Wilke-Kirchhoff Detention Basin. The project included the replacement of many of the center row roof panels and painting of the interior and exterior. This project is part of our ongoing program to rehabilitate our water tanks for continued use as potable water storage. On March 2nd the Village Board awarded a bid to the lowest bidder, Jetco Ltd. of Lake Zurich, Illinois, in the amount of $824,936 for this project.

The project commenced in early June.  The inside roof was sandblasted to bare metal. Once the work was started and the paint fully removed, an issue was discovered which was not part of the original project scope but had to be addressed. The sandblasting on the roof portion of the water tank exposed multiple failures of several existing purlins. Purlins are required to reinforce structural integrity (in this case to the roof beams). It is not uncommon for additional work related to water tank rehabilitation to be discovered once the paint is fully removed. The original bid quantities were developed based on an inspection of the inside of the tank with existing paint conditions. The bid quantities included some additional repairs, but not to this extent.

It was the consensus of Village Staff and the Village’s Water Tank Consultant, Robinson Engineering that all necessary repairs be made to the roof to ensure water tank integrity. The total additional cost for repairs submitted by Tecorp is $52,960. Robinson Engineering reviewed the charges and found it fair and in accordance with industry standards. This represents an overage in the approved contract of 6.5%.

Funds for this additional cost are available from the Operating Contingency of the Water & Sewer Fund – Account No. 505-9901-591.40-96.

RECOMMENDATION

It is recommended that the Village Board approve Change Order #1 (final ending) to Jetco Ltd. of Lake Zurich, Illinois for the emergency repairs to the West Tank at Station #16 in the amount of $52,960 and authorize Staff to execute the necessary documents.  It is recommended further that the budget be amended using operating contingency funds in the Water & Sewer Fund.