City of Roslyn Transmission Water Main

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Gray & Osborne, Inc., Consulting Engineers PROJECT O&M -4: STORAGE SHED AT SHOP Schedule: 2015 Estimated Cost: $71,300 Water Fund Contribution: $42,800 The existing public works shop does not have adequate storage space for spare piping. To create more storage space, the City plans to construct a storage shed off the existing building to store water and sewer pipes and fittings. The project will be funded from both the water and sewer funds. PROJECT O&M -5: COMPUTER SYSTEM UPGRADE Schedule: 2016 Estimated Cost: $21,400 The City anticipates that the existing computer at the WTP will need to be updated soon. Upgrades will include new hardware and updating the current software. PROJECT O&M -6: TURBIDIMETER REPLACEMENT Schedule: 2016 Estimated Cost: $14,900 By 2018 the treatment plant will have been online for 20 years, which is the typical life span of turbidimeters. As a result the City plans to replace three turbidimeters with newer models. PROJECT O&M -9: CLEAN INTAKE POND Schedule: Beyond 2018 Estimated Cost: $71,300 The City plans to clean and rehabilitate the intake pond in Domerie Creek within the 20 -year planning period to ensure adequate storage and withdrawal capacity. 6 -YEAR CAPITAL IMPROVEMENT PLAN Table 7-1 summarizes the proposed capital improvement projects for the 6 -year planning period. Each project is discussed further in the paragraphs above. Detailed cost estimates for the capital improvement projects are included in Appendix K. The transmission and distribution system project costs in Table 7-1 include 20 percent contingency and 25 percent engineering and administration. O&M costs include 20 percent contingency and 10 percent engineering and administration unless otherwise noted. Project costs are projected forward with 3 percent inflation annually as well. Water System Plan June 2014