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ARDEN HILLS CITY COUNCIL - March 31,2008 5 B. Motion to Approve Change Order #4 in the amount of $6.271.44 and Final Pavment (#8) to Arnt Construction Companv. Inc. in the amount of $38.563.73 for 2006 PMP Proiect. City Engineer Deb Bloom stated that the City of Arden Hills awarded this project to Arnt Construction Company, Inc. on June 12,2006 and change orders #1, #2, and #3 were approved by the Council resulting in a current contract amount of $1,809,791.62. Currently they are asking the City Council to approve a final change order and the final payment. The final change order is for work that resulted in coordination with residents regarding rain garden and drainage issues, and driveway work. The amount of this change order is $6,271.44. The project is complete except for some final landscaping that will be done yet this year. Councilmember Holden asked who would be responsible for the remaining $15,000.00 in landscaping. City Engineer Bloom explained that they would be looking at having this be a separate bid by a landscape contractor and getting new prices. Councilmember Holden stated that because this was a PMP Project she would like to know the total cost of the final project. City Engineer Bloom stated that this information could be found on page two of the report. This amount is $2,279,101.15 including the expected $15,000.00 budget for the landscaping to be done this year. MOTION: Councilmember Holden moved and Councilmember Grant seconded a motion to Approve Change Order #4 in the amount of $6,271.44 and Final Payment (#8) to Arnt Construction Company, Inc. in the amount of $38,563.73 for the 2006 PMP Project. The motion carried unanimously (4-0). C. Presentation of the Final Draft Inflow/Infiltration Report. City Engineer Bloom stated that last year the City had contracted with Bonestroo to complete an infiltration and inflow report. She then presented this report to the City Council using a PowerPoint presentation. The initial steps that the City has taken to identify the problem areas has been to review MCES flow data, install temporary flow meters to subdivide analysis areas, review and evaluate the data collected, and then prepare a plan for the next steps. It was concluded from the data collected that the City had mainly inflow problems and each metershed was showing 1/1 issues. Meter areas M051, M3, M052, and M059 will need to be evaluated for direct inflow sources, as well as possible private sources, and private property sources may be the major contributors in meter areas MI and M051. She then stated that the next steps that should be taken would be additional temporary flow metering (reinstalling meter MI), calibrate lift stations to supplement temporary metering data, and continue to televise pipes to document pipe condition for future rehabilitation planning. Additional steps would be to initiate "direct inflow investigations" (smoke testing, roof leader inspection, and dye testing), initiate private