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Regular City Council Meeting Monday,December 10,2012 Page 12 Certification process, using a long term soak test for allowable limits for multi- ple materials. Further discussion included video inspections pre- and post-inspection and throughout the application processes to address and be aware of any impacts to individual service lines; better condition of City of Roseville water pipes than those shown in the presentation due to the City's use of surface water and cast iron piping versus well water; and product unavailability for private homeowner application in the market at this time as those projects are too small to be cost- effective at this time; and current use of similar technologies to reline sewer mains in the community that have proven very cost-effective. Councilmember Johnson thanked Mr. Carney for his excellent, professional, succinct presentation; and expressed his excitement about this project, opining that it seemed to open up other applications for rejuvenation of other infrastruc- ture issues in the future. Mr. Carney concurred that the base chemistry provided for many other possi- bilities in the future; however, he noted that this specific application was de- signed for use with water lines, since it needed to be uber clean for BPS certifi- cation. City Civil Engineer Kristine Giga Ms. Giga provided a brief presentation, further expounding on the information included in the RCA dated December 10, 2012; and staff's recommendation to address the City's aging water mains, and to reduce or eliminate the multiple breaks experienced annually. Ms. Giga provided some examples and identified problem segments previously identified in the City's CIP, including two (2) breaks experienced over the last weekend. Ms. Giga revised the options availa- ble in using trenchless technology, including a cured in place pipe (CIPP) lining system currently used for sewer lining, with four (4) manufacturers available for that product, or the spray-in-place lining system by 3M; either of which would be cost-effective. Ms. Giga reviewed the recent bidding based on plans and specifications pre- pared in October of 2012 for water main rehabilitation for two (2) segments; and specifics of the two applications. Ms. Giga advised that three bids had been received: two with the CIPP application, and one with the spray-on liner by 3M. Ms. Giga reviewed the bid results, cost comparisons, and 30-50% lower cost in using the 3M spray application that would result in less disruption to services as well, fewer access pits, and potential for completion with out installing a tempo- rary water system, since the cure time is short and services reinstated the same day as applied. Ms. Giga reviewed the requirements of the MN Department of Health and boil notices to residents impacted until disinfection tests pass (48