COMPLIANCE INFO_2008-PRESENT - Laserfiche WebLink

Home Browse Search

Michael Leacox Page b of 1 1 waste management units at a tungsten mine near Bishop, California. Project site is located in a steep alluvium-filled canyon formed by normal faulting along the eastern Sierra mountains. Project included installation of monitoring wells and lysimeters, pumping equipment for sampling, and protective systems to prevent vandalism. Project also included an evaluation of potential impacts from existing ponds to groundwater and surface water at the site. Waste Characterization and Wastewater Pond Closure, Davis, Yolo County, California - Project consultant during turnkey closure of six wastewater ponds located at a former hospital in the Central Valley of California. The six ponds encompassed greater than 2 acres and were used for the disposal of raw sewage from the hospital. He developed a work plan that was approved by the RWQCB to assess the characteristics and volume sludge, waste, and impacted soil within and beneath the ponds. The characteristic assessment included evaluating the soluble concentrations of metals and other contaminants to develop cleanup goals that were protective of groundwater. Based on the field assessment, an approach to closure was developed that included removal of the sludge and upper soil layers, demolition of the pond berms, and placement of engineered fill and regrading of the pond surface such that surface water drains from the surface to minimize infiltration. Pond sludge disposal evaluation for food processor company, Oroville, Butte County, California - Evaluated alternatives for disposal and characterization of processing wastewater, pond sludge, and pond water. Developed cost-effective approach for disposal of sludge and brine. He also evaluated the technical and regulatory feasibility of a variety of alternatives to dispose of pond sludge and water from inactive olive processing ponds. He reviewed analytical results for samples of pond sludge and water, then began to perform preliminary cost evaluations for several alternatives. After internal discussions, it was determined that the most cost-effective approach was to utilize the same approach the company periodically utilized to dispose of sludge and water from their active olive processing ponds. They periodically clean out the active ponds by mixing sludge and water within the ponds and discharging the mixture to the regional wastewater treatment plant. He assisted in selecting this common sense approach to disposal of the sludge and water from the inactive ponds at a very low cost for consulting services. Article 5 Evaluation Monitoring project, Davis, California - Managed, designed and implemented a evaluation monitoring program for the University of California - Davis campus landfill. Project included assessment of the lateral and vertical extent of volatile organic compounds in both soil and groundwater, and the assessment of the lateral and vertical extent of inorganic compounds in groundwater. Project highlights included pre- design of the groundwater extraction system to identify the location of possible remedial action extraction wells. Dual purpose extraction/monitoring wells were installed those locations which significantly reduced the number of monitoring wells required for the program. Each well installation included the design and installation pumping equipment for groundwater sampling. Article 5 evaluation and corrective action program, South Camanche Shores, Calaveras County, California - Managed an evaluation monitoring program and developed a corrective action plan for a landfill located on the south shore of Lake Camanche. Projected included the installation of groundwater monitoring wells within the Riverbank formation, development of a hydrologic water balance for the surface water and groundwater systems in a complex hydrogeologic regime. Project included development of a unique and very cost effective corrective action program for closure of