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of Report Number 10-164 Agenda Section VI-8 the city that works for you Council Meeting Date July 13, 2010 • REQUEST FOR COUNCIL CONSIDERATION ITEM DESCRIPTION: CONSIDERATION TO ORDER CITY PROJECT 10-17, NORTHWEST QUADRANT EAST SIDE INSTALLATION OF GROUNDWATER AND VAPOR MONITORING WELLS. DEPARTMENT HEAD'S APPROVAL: (--xm4J CITY MANAGER'S APPROVAL: No comments to supplement this report 0 Comments attached Recommendation: To order City Project Northwest Quadrant East Side Installation of Groundwater and Vapor Monitoring Wells. Legislative History: 1. Initial Response Action Plan (RAP) for East Side for DSU's mixed use development concept: Nov. 2005. The MPCA approved this RAP, but had significant comments that led to negotiations with MPCA in 2006. MPCA's concerns included, (among other things) 200 foot separation of residential uses from the dump; an area -wide landfill gas collection system; more soil and groundwater testing; request for a field -scale venting system test at Old Miller Dump, etc. 2. Meeting on April 11, 2006 with Council to discuss dump closure and development of eastside, including consequences of MPCA's new requirements. 3. In 2007, portions of the eastern NW Quadrant were cleaned up and developed. The Mengelkoch 1950's dump was remediated with the City's EPA grant, Transoms was developed, the City reconstructed Old Hwy 8 following cleanup of the western edge of Old Miller Dump, and associated stormwater ponds were installed following cleanup of the eastern edge of Old Miller Dump and cleanup of petroleum impacts at Anoka Coop. 4. An updated RAP was prepared for the remaining portions of the Eastern NWQ in Feb. 2008. 5. A worksession with City Council on March 25, 2008 discussed this updated RAP. 6. The MPCA approved the RAP on May 1, 2008 (re -approved with Petroleum Brownfields on May 15, 2008) 7. On May 28, 2008, the City Council ordered this project and approved the plans and specifications, and on July 22, 2008, authorized the advertisement for bids. 8. Bids were opened on August 28, 2008 and the Council awarded a contract to the low bidder, Veit and Company, Inc., on September 8, 2008. 9. On June 22, 2010, the City Council approved Final Payment, to Veit and Company, Inc., for Project 07-5, Old Miller Dump Closure Plan. Financial Impact: The cost to install 6 shall groundwater monitoring wells and 15 vapor monitoring wells is estimated to cost $65,000. Additional costs will be incurred as a result of the future testing and monitoring. These costs are outlined below: Groundwater Monitoring Wells: Four rounds of samples will be collected over the next year from the 6 groundwater monitoring wells. The estimated cost for groundwater sampling, analytical testing, and a report to the MPCA is $35,000. Gas Vapor Monitoring Wells: Over the next several years, periodic samples will be collected as determined by MPCA monitoring requirements. The estimated cost for sampling, analytical testing, and reporting to the MPCA is $15,000.