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ANDERSEN ANDRE CONSULTING ENGINEERS, INC. <br />Geotechnical Engineering <br />Construction Materials Testing <br />Environmental Consulting <br />Geosyntec Consultants, Inc. <br />1200 Riverplace Boulevard, Suite 710 <br />Jacksonville, FL 32207 <br />Attention: Mr. Kwasi Badu-Tweneboah, Ph.D., P.E. <br />PROPOSAL FOR ABANDONMENT OF MONITORING WELLS <br />AND INSTALLATION OF GAS MONITORING WELL <br />INDIAN RIVER COUNTY LANDFILL <br />INDIAN RIVER COUNTY, FLORIDA <br />RACE Proposal No. P22-2487 <br />(November 8, 2022) <br />November 10, 2022 (Rev1) <br />In accordance with your request, we are pleased to submit our proposal to abandon four (4) <br />groundwater monitoring wells at the above referenced project site. The wells vary in depth from <br />approximately 23 feet to 45 feet, for a total of approximately 136LF of well length, with the diameter <br />of each well being 2 inches. Further, 2 -ft by 2 -ft concrete well pads, manholes and bollards will be <br />removed, with these materials being left at the Indian River County Landfill. No earthwork operations <br />to backfill the well pad and bollard areas are included herein. The abandonment will completed by <br />grouting (by tremie method from the bottom up) the wells using a lean cement grout and a truck- <br />mounted drill rig. The well abandonment will be performed by a Water Well Contractor licensed by <br />the South Florida Water Management District (SFWMD). Upon completion of the work, Well <br />Completion Reports will be issued relative to the abandonment. <br />In addition, we understand that an existing 7 -ft deep gas monitoring well (probe) will require <br />abandonment, and a new 7 -ft deep probe (2" diameter schedule 40 PVC) will be installed, including <br />concrete pad, locking manhole and four protective bollards. <br />Our estimate of the cost of our services for this project is $8,100.00, itemized as follows: <br />• Mobilization of Men and Equipment; lump sum ............................. $350.00 <br />• Obtaining Well Abandonment Permits from the Indian River County Health Department; <br />- Permit Cost + 15% .................................................... $250.00 <br />- Project Engineer; 5 hours @ $110.00/hour................................ $550.00 <br />• Monitoring Well Abandonment by a SFWMD Licensed Well Contractor; <br />- Cost + 15%.........................................................$1,200.00 <br />• Issuance of SFWMD Well Completion Report (relative to abandonment) to the FDEP; <br />- Project Engineer; 5 hours @ $110.00/hour................................ $550.00 <br />• Abandonment of gas probe and installation of new gas probe - lump sum........ $5,200.00 <br />Total Project Cost: .................. $8,100.00 <br />Weather conditions permitting, we will start the well abandonment within 7-10 days after receiving your <br />authorization to proceed. The well abandonment report will be issued within 14-21 days subsequent <br />to our field work. <br />834 SW Swan Avenue, Port St. Lucie, Florida 34983 Ph: 772-807-9191 Fx: 772-807-9192 www.aaceinc.com <br />