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exterior work on the tanks continued and was completed in late May (following a temporary shutdown due to the County's Shelter-in-Place Order for Covid-19). The punch list work was completed in August; the City received the final invoicing and supporting documents for change orders from the contractor in November. Budget The funding for the project was $3,116,137, provided from the Bi-Annual Tank Corrosion Repairs Project, CIP No. 18127, and Ruby Hills —Additional Water Storage Project, CIP No. 15146. A total of nine change orders, including one balancing change order, were issued for this project for a total of$129,123. The change orders included additional exterior coatings to the tanks as determined necessary by specialty inspection. The change orders also included: 1) Installation of anti-climb devices on the ladders at all three tanks 2) Replacement of two roof vents at Laurel Creek 3) Payment for metal repairs at the upper Ruby Hills and Laurel Creek tanks 4) Application of an additional layer of coating on the exterior of the upper Ruby Hills tank that was determined necessary after blasting 5) The complete removal and replacement of the exterior coating system on the Moller Ranch tank 6) Credit for not installing new anodes to the Moller Ranch tank. The balancing change order deducted the metal repair allowance, as the repairs were paid for under a change order and provided a credit for installation of new cathodic anodes in the Moller Ranch tank as the anodes were not installed and the materials were turned over to the City to be used in the future. The final project funding and expenditures are summarized in Attachment 1. The total project expenditure is $2,218,684, leaving a remaining fund balance of$897,453. Staff recommends returning the remaining amount to their fund balances; $696,137 will be returned to the Water Expansion fund and $201,316 will be returned to the Water Replacement fund. Consultant Services The corrosion-prevention coating which was installed in the potable water tanks not only required installation by a contractor certified by the manufacturer, but also required specialty inspection services to ensure proper surface preparation and humidity control before and during installation of the coatings. The specialty inspection preserves the manufacturer's warranty of the products. CSI Services, Inc. (CSI) performed the inspection services for the project and ensured that all the manufacturer's recommendations were followed. The City added additional work which extended the project duration by 34 days and required additional inspection services from CSI. The City worked with CSI throughout the project to reduce the amount of specialty inspections needed by providing City staff inspections when possible. However, an additional 6 days of specialty inspection services were required to inspect the coating Page 3 of 4