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ROBERT B. GARDNER, P.E., DEE
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Copyright 2008 – SCS Engineers

 
 
 
  EDUCATION

M.E. - Civil (Environmental) Engineering, University of Virginia
B.S. - Civil Engineering, University of Virginia

  PROFESSIONAL LICENSES

Professional Engineer - Alabama, Arkansas, Florida, Georgia, Louisiana, Maine, Mississippi, New Jersey, New York, South Carolina, Virginia, Washington

  Specialty Certifications

Board Certified Environmental Engineering (BCEE), Solid Waste Management

  PROFESSIONAL AFFILIATIONS

Solid Waste Association of North America
National Society of Professional Engineers
American Academy of Environmental Engineers
American Society of Civil Engineers

  PROFESSIONAL EXPERIENCE

As a Senior Vice President, Mr. Gardner is responsible for overseeing SCS’ nationwide solid waste management practice, which includes landfill engineering, landfill gas management, solid waste studies, landfill environmental systems operation and maintenance, and construction.  Mr. Gardner works closely with SCS’ national and regional clients.  Since joining SCS in 1980, he has completed solid waste, hazardous waste, environmental assessment, facility design, compliance audit, and other environmental study projects. 

Mr. Gardner has participated in or directed solid waste facility design and study projects for numerous municipalities and private companies in Alabama, Arkansas, Arizona, California, Florida, Georgia, Illinois, Louisiana, Maine, Maryland, Michigan, Mississippi, North Carolina, New Jersey, New York, Ohio, Pennsylvania, Puerto Rico, South Carolina, Virginia, Washington, and West Virginia.  Projects typically have involved facility siting, site investigations, environmental studies, permitting, design, and construction services. Facilities have included landfills, landfill gas control facilities, material recovery facilities, transfer stations, wastewater treatment plants, and support facilities (e.g., roadways, buildings, stormwater, utilities). Other projects have included waste composition studies, rate studies, compliance audits, site assessments, and preparation of various procurement documents.

He has participated in or directed numerous environmental site assessments, contamination assessments, remedial action plans, and remedial construction projects throughout the United States. Project sites have included fuel storage facilities, vehicle maintenance facilities, truck stops, chemical processing plants, active and closed landfill sites, abandoned chemical disposal sites, and superfund sites.  Chemical contamination encountered in both soil and groundwater media has included petroleum, heavy metals, dioxin, pesticides, heavy metals, PCBs, and solvents. 

Notable projects that Mr. Gardner has been involved in are described below.

Landfill Engineering

  • Reviewing Principal for the design and permitting of the Salt River Pima-Maricopa Indian Community (Scottsdale, Arizona) Salt River Landfill 35-acre, 100-foot deep, bioreactor cell.  The project was permitted under the U. S. EPA’s Research, Development and Demonstration (RD&D) permit program and was administered by U.S. EPA Region 9.  The design addressed liquids, landfill gas, and stormwater management; monitoring and operational requirements.   
  • Project Director for the assessment of the aerobic bioreactor stabilization project for the City of Tucson, Arizona.  The project involved conducting additional field investigations, laboratory tests, and data evaluations with the goal of establishing criteria for the waste stabilization end point that are consistent with the requirements of the VRP.  The end point waste stabilization criteria was intended to provide parameters for post-closure care monitoring and future development on the landfill. It was understood that the criteria established under this portion of the work for the potential development of the aerobically treated landfill area may or may not be subject to review and approval by Arizona Department of Environmental Quality (ADEQ).  The end point status report documented the field investigations and discussed data evaluations conducted by SCS, and presented conclusions and recommendations regarding the waste stabilization end point, and post-closure care monitoring consistent with the VRP requirements.

  • Project Director and Principal-in-Charge from 1985 to 2005 for a multi-year, continuing services solid waste consulting services contract for Hillsborough County, Florida, Department of Solid Waste.  Mr. Gardner has provided overall landfill and landfill gas engineering, solid waste consulting, and construction assistance for a wide range of projects. Projects completed include a landfill gas migration and odor control system, a new permit for Class I landfill, the development of a new Class I landfill, two landfill closure projects, landfill gas vendor request for proposal, a contamination assessment at one of the County's landfills, the design of a leachate treatment facility, regulatory coordination, assistance with yearly capital and operation and maintenance budgets for the County’s open and closed landfills, and presentations to the County Commissioners.  County landfills involved included Hillsborough Heights, Taylor Road, Northwest, Southeast, Gunn Highway, Barry Road, and Pleasant Grove Landfills.

  • Principal-in-Charge from 1996 to 2001 for a multi-year, continuing services, solid waste management consulting contract with Polk County, Florida.  Projects included design and permitting for partial closure of the North Central Landfill, assistance during construction of the landfill gas recovery system at the North Central landfill, landfill gas investigations at the Northeast and Southeast Landfills, preparation of annual financial assurance documentation, assessment of privatization of portions of the County’s solid waste operations, conduct of budget, rate, solid waste composition studies, Title V permitting for the North Central Landfill, and emergency response repairs to one of the major leachate pump stations at the North Central Landfill, including hauling and disposing of over 500,000 gallons of leachate.

  • Principal-in-Charge from 1991 to 2003 for a multi-year, continuing services, solid waste management consulting contract for Volusia County.  Projects have included design, permitting, construction services, and liner construction quality assurance, and construction certification for a 35-acre Class I landfill, landfill gas recovery and utilization system, new borrow pit to support landfill operations, site assessment, remedial and closure designs for Plymouth Road Landfill groundwater contamination, and preparation of a commercial recycling database management system.

  • Reviewing Principal for a multi-year, continuing services, landfill engineering contract for Citrus County, Florida.  Projects have included landfill gas investigations, preparation of landfill gas remedial action plans, and the design and permitting of the County’s 10-acre landfill expansion project, which will complete the development of the County’s current landfill facility.

  • Reviewing Principal from 2000 to 2003 for a multi-year, continuing services, landfill engineering contract for Flagler County, Florida.  Responsibilities included engineering, permitting, and environmental monitoring for the County’s two closed landfills (Old Kings Road Landfill and Bunnell Landfill) and the active construction and demolition debris landfill.  Mr. Gardner also directed a feasibility study to expand the County’s current C&D landfill to the south, which included an environmental and fatal flaw analysis of the 200+ acre parcel of land immediately south of its current operations. 

  • Project Director from 1993 to 2003 for a continuing services, landfill engineering consulting contract for Escambia County, Florida.  Mr. Gardner has been responsible for directing over $18 million in landfill improvements to the County’s active and closed landfills.  The County’s active landfill is the Perdido Landfill, which includes Class I and Class III disposal areas and other supporting solid waste operations.  Mr. Gardner also assisted on various projects associated with the closed Camp V, Mobile Highway, and Klondike Landfills.  Projects at the Perdido Landfill have included a comprehensive environmental and operational compliance audit of the Perdido Landfill, design and permitting for four successive landfill expansion cells (2B, 3A, 3B, and 3C), landfill gas collection and recovery system, leachate management system improvements, stormwater improvements, cover improvements, roadway improvements, and a citizens convenience center, operational permit renewal applications in 1994 and 1999, Title V and NPDES permitting, and financial assurance and landfill capacity evaluations on an annual basis.   In addition, Mr. Gardner directed the design, permitting, construction services, and liner CQA services associated with the closure of the 135 acre Beulah Landfill. 

  • Project Director since 1999 for a continuing services, landfill engineering consulting contract for Orange County, Florida.  Projects have included evaluation of the County’s solid waste transfer operations, evaluation of landfill gas system improvements at its Class I landfill, design and permitting of a gas collection and control system pursuant to the new source performance standards (NSPS), design of an anvil top surface recoating at the Porter Transfer Station, design of a new coating system to rehabilitate the County’s aboveground, concrete leachate storage tanks, and preparation of a 50-year solid waste master plan.  The master plan study included solid waste projections, assessment of current and future transfer and disposal needs, a preliminary siting study for a new Class I landfill and several new transfer stations, a solid waste disposal optimization study of the County’s existing solid waste management facility, economic analyses, and preparation of the master plan report. 

  • Reviewing Principal since 2000 for a continuing services, landfill engineering consulting contract for Pinellas County, Florida associated with the active Bridgeway Acres Landfill (ashfill) and the closed Tontitown Landfill.  Projects have included preparation of the operations permit renewal application for the Bridgeway Acres Landfill, evaluation of the slurry wall system around the Bridgeway Acres Landfill, evaluation of the stormwater and leachate management system for the Bridgeway Acres Landfill, and miscellaneous engineering tasks on an as needed basis.

  • Project Director for evaluation of landfill privatization proposals for Hardee County, Florida.  Mr. Gardner prepared the financial pro-forma model to allow the County to evaluate various privatization proposals, taking into account the year by year revenues (tip fees, special assessment, and interest income), operational costs, capital project costs, and fund transfers. 

  • Served on the state-appointed, Florida Department of Environmental Protection (FDEP) Technical Advisory Group for the development of Florida’s new landfill regulations (Chapter 62-701, Florida Administrative Code [FAC]) developed in response to the Federal RCRA, Subtitle D regulations. The Technical Advisory Group assisted the FDEP in the drafting of the new landfill rules, with specific focus on liner design, leachate collection systems, landfill gas, closure, groundwater monitoring, and financial assurance. 

  • Project Director for the design of closure plans for the Lady Lake Landfill, Lake County, Florida. The project involved evaluation of previous permitted design for closure of the landfill, modification of the design to provide a more cost-effective and constructible project, landfill gas management, stormwater management, development of construction contract documents, hydrogeologic evaluation of the surrounding area, assistance on development of a contamination assessment plan, regulatory coordination and permitting, and site investigations to support the purchase of adjacent undeveloped land. Estimated closure construction cost for the project was $3.1 million. Closure design included a combination of geomembrane and clay liner final cover design cross sections. 

  • Project Director for the design of a leachate treatment system and landfill liner improvements at the 40‑acre Glades County, Florida landfill. The project involved the development of an evaporation/storage basin to manage the leachate generated from the lined facility, and upgrade of the landfill's leachate collection system. A spray irrigation recirculation system also was included in the system design to handle severe storm events, when leachate production exceeded the storage capacity of the basin.  Construction of the system was completed in April 1991.

  • Project Director for the design of a 240-acre Class I and Class III Northwest Recreational Landfill, Jacksonville, Florida, for Browning-Ferris Industries. The project involved regulatory coordination, preparation of zoning application, public hearings, site investigation survey, and design.

  • Project Director for third party, independent review of a landfill siting study for Alachua County, Florida. The project involved detailed review of studies, field investigations, calculations, basic assumptions, and application of a landfill siting and ranking methodology prepared by the County, a Citizens Advisory Committee, and the County's technical consultant. Findings and recommendations were presented at a public hearing to the Board of County Commissioners.

  • Project Director for the permitting, design, and construction of a 5-acre partial landfill closure for a Allied Waste Services’ Old Dixie Landfill in Jackson, Mississippi.  The project was completed on a design/build basis.  According to Allied Waste Services,” This job posed unique problems and your (SCS’) crew developed unique solutions to these problems”. 

  • Project Director for environmental audit of the City of Jackson, Mississippi's municipal solid waste landfill in support of the prioritization of the City's landfill disposal operations. The assessment included review and assessment of the landfill design, regulatory compliance audit, review of implications of Subtitle D regulations, review of site geology and groundwater data, assessment of landfill gas controls and migration potential, and site reconnaissance. A detailed environmental audit report was prepared.

  • Project Director for the preparation of landfill design and operations plans for disposal of residue from a waste-to-energy plant in Hudson County, NJ. Tasks included site development, liner and leachate calculations, sequential fill, final grading, and closure plans; preparation of an Environmental Health and Impact Statement; groundwater modeling; and development of an operations and maintenance manual for the landfill in accordance with New Jersey Department of Environmental Protection regulations.  The landfill was designed with a double-liner system.

  • Project Director for the design of a closure plan for the 2,300-acre Fresh Kills Landfill, New York City, New York. Project included site investigation, wetlands assessments, closure plans, stormwater management, construction services, and regulatory coordination and permitting.

  • Project Manager in the development of New York City's landfill operational, closure, and end-use plans for the Fountain Avenue, Pennsylvania Avenue, and Edgemere Landfills, including final cover, leachate management, landfill gas controls, and final grades.

  • Project Manager for the siting of a new landfill for Prince William County, Virginia.  Tasks included preparation of screening and ranking criteria, preparation of screening overlay maps, site visits, hydrological investigations, extensive coordination between a citizen’s advisory group and County staff, preparation of report, presentation to County Board of Supervisors, and preparation of permit and construction plans for the new landfill.

  • Technical Advisor in the preparation of landfill development and operations plans for a 50-ton-per-day sanitary landfill for Island County, Washington.

  • Project Director assisting the Florida Department of Environmental Regulations in developing new and updated solid waste rules pursuant to the 1988 Florida Solid Waste Act. Assignments included work on the compost rule, oil spill debris disposal, and the phosphogypsum management rule.

  • Project Director for the development of Master Plan for expansion of an ash residue landfill for Regional Waste System's, Inc., Portland, Maine. Evaluated various vertical and lateral expansion alternatives. Considered implications of state regulations and the Resource Conservation Recovery Act (RCRA), Subtitle D requirements.  Life of site calculation prepared independent, third party review of previous designs conducted, and master plan report prepared.

  • Project Director and Engineer of Record responsible for design of the operational filling sequence and related stormwater controls for the City of Mayagüez Landfill, Puerto Rico.  Requirements included hydraulic modeling of drop inlets, detentions, establishing erosion and sedimentation plans, and detention ponds.

  • Project Director for design of landfill expansion for the Peñuelas Landfill, Puerto Rico.  Project included liner expansion, sludge holding tank, sludge mixing pit, sludge conveyance piping, and access roadways.

  • Project Director for evaluation of economic feasibility of Page County, Virginia taking over the operations of its Battle Creek Landfill.  The Battle Creek Landfill had been operated by National Waste Services, Inc. (NWS) under contract with Page County; however, the Virginia Department of Environmental Quality forced the landfill to shutdown due to operational and environmental deficiencies, and NWS filed for bankruptcy protection.  Prepared an economic model that considered the labor, equipment, personnel, cell expansion, closure, post-closure, site remediation costs, and NWS contract close-out costs.  Page County ultimately decided to take over the operations.

  • Project Director for evaluation of potential earnings (revenues minus costs) from a construction and demolition debris landfill facility in the Tidewater Virginia area for the purposes of determining the economic value of setting aside the permitted disposal area as a conservation easement for tax purposes.  Prepared an economic model that considered the labor, equipment, personnel, cell expansion, closure, and post-closure costs and potential revenues through the remaining life of the permitted landfill area. 

  • Project Director for assessment of the value of a new construction and demolition debris landfill for a private client in south Florida.  Prepared an economic model that considered the labor, equipment, personnel, cell expansion, closure, and post-closure costs and potential revenues through the life of the facility. 

  • Project Director for a waste compaction study at private Class III Landfill located in central Florida.  Approximately 50, 100-cubic yard transfer trailer loads of  residual construction and demolition debris were delivered over a three day period to landfill from several recycling facilities in south Florida.  SCS supervised the field compaction efforts, prepared pre and post-compaction surveys, calculated airspace volume consumed, and prepared a report presenting the findings of the field investigations.  The purpose of the study was to assess the ratio of the in-place compacted volume to the as-delivered truck volume.

  • Project Director for hydrogeological and geotechnical investigation for siting a new 177-acre Class I Rubbish Disposal and Recycling Facility in Stone County, Mississippi.  The work was completed on behalf of Gulf Coast Recycling, LLC.  The purpose of the investigation was to evaluate the geologic and geotechnical characteristics of the site and demonstrate its suitability for use as a Recycling and Class I Rubbish Disposal Site.  This disposal facility siting study was done in response to a December 14, 2005 authorization from the Mississippi Department of Environmental Quality (MDEQ) following Hurricanes Katrina and Rita.  The project included review of background information, coordination with MDEQ, field and laboratory testing, advancement of 11 soil borings, installation of four temporary groundwater monitoring wells/piezometers, measurement of groundwater elevations, and preparation of a geologic demonstration report.  Work was completed in early 2006.

  • Reviewing Principal for new cell design, Potrero Hills Landfill, Solano County, CA.  The site is owned and operated by Republic Services.  SCS prepared complete design plans and specifications for development of a new, 10-acre waste disposal cell per Subtitle D and CCR Title 27 regulations.  The cell design included provisions for a composite liner and leachate collection and removal system (LCRS).  Design elements included the soil excavation/grading plan (850,000 cubic yards excavation), groundwater underdrain system, surface water drainage plan, clay and HDPE liner system details, and use of a traditional soil operations layer. 

  • Project Director for the assessment of landfill gas recovery and leachate generation estimates for the existing Midshore 1 and proposed Midshore 2 landfills for Talbot County, Maryland in support of a broader leachate/septage treatment feasibility study.  

  • Project Director for a construction and demolition debris landfill siting feasibility study for a confidential client in the Southeast.  The project involved assessing the existing construction and demolition debris generation and disposal capacity in a two-county region, identifying the key regulatory and zoning restrictions, and assessing the feasibility of developing a new construction and demolition debris landfill in one of the target communities. 

  • Project Director for the development of a cost and revenue model to evaluate the potential earnings that could be realized, and the corresponding net present value of these earnings, from developing and operating the proposed Part B Expansion area at the Elbow Road Farms Landfill, Chesapeake, Virginia.  The model considered numerous cost factors including labor, equipment, permitting, construction, finance charges, discount factors, inflation, federal and state taxes, maintenance, and other items required to run a construction and demolition debris (CDD) landfill.  The site owner planned to use this analysis to support potentially setting aside the Part B Expansion Area for its proposed Construction/Demolition Debris Landfill (CDD) as a qualified conservation area contribution.  Pursuant to Treasury Regulation Section 1.170A-14, which governs qualified conservation contributions, the valuation of the property can take into account the fair market value of the property based on the projected highest and best use of the property.

  • Project Director for the design and permitting of a 233-acre green field C&D disposal facility located in Glades County, Florida for Glades Landfill, LLC.  The facility has a disposal footprint of approximately 145 acres, with an estimated gross air-space capacity (inclusive of daily, intermediate, and final cover) of approximately 10,000,000 cubic yards. This project included a fatal flaw analysis, conceptual design, geotechnical and hydrogeological site investigations, groundwater monitoring plan development, site stormwater management design, landfill design, and solid waste and environmental resource permitting services.  The proposed site was located within an environmentally sensitive area resulting in increased attention from the regulatory agencies.  The facility became one of the first lined C&D disposal facilities permitted in the State of Florida.

Landfill Gas Management

  • Reviewing Principal for the design, construction, and operation and maintenance of a 3.2 MW Landfill Gas Green Power Facility for DeKalb County, Georgia.  DeKalb County selected SCS Energy to implement this County-initiated project.  The project was completed in less than 9 months, under significant time constraints.  The project was one of the first applications of the Caterpillar 3520 reciprocating engine generators, which were designed for low NOx emissions.  The facility included  a pre-engineered metal building, conference/educational viewing room and offices, two-Caterpillar 3520 generators, gas pre-treatment, and remote control and monitoring capabilities. (Note:  Project is ongoing) 

    Project Director for the independent evaluation of the leachate and landfill gas management systems at the Two Pines Landfill, Little Rock Arkansas, which is owned and operated by Waste Management of Arkansas, Inc.  The project included a detailed site evaluation of the leachate and landfill gas systems, interviews with Waste Management site personnel, engineering, and compliance staff regarding leachate and LFG system design, construction, and operation; interviews with SCS Engineers, SCS Field Services, and other consultant staff involved in design and construction tasks at the site.  In addition, engineering drawings, reports, construction record, and regulatory files associated with leachate and LFG systems were reviewed.  An analysis of leachate and LFG system design, construction, and operation was completed.

    Project Director for Tier 2 emissions test for the Three Corners Landfill, a Waste Management, Inc. facility, in Piedmont, Alabama.

    Project Director for Tier 2 emissions test for the Southeast County Landfill, Hillsborough County, Florida.  Fifty samples were collected from the landfill.  The average concentration of nonmethane organic compounds was 116 ppm.

    Project Director for Tier 2 emissions test for the Solid Waste Disposal Authority for the City of Huntsville, Alabama.  Fifty samples were collected from the landfill.  The average concentration of nonmethane organic compounds was 60 ppm.

    On behalf of Hillsborough County, Florida, evaluated and assisted during negotiations of a landfill gas utilization contract proposed by TORO Energy Corporation for construction of a landfill gas pipeline from the Hillsborough Heights Landfill to a concrete plant boiler.

    Project Director for the preparation of yearly air emissions reports for the Hillsborough Heights, Taylor Road, and Southeast County Landfills, Hillsborough County, Florida.

    Project Director for the monthly inspection, monitoring, and adjustment of the Hillsborough Heights and Taylor Road Landfill gas control systems (separate systems for each landfill).  Tasks include inspection of all facilities associated with the landfill gas system, including wellheads, flares, and blowers; balancing of the landfill gas control systems; trouble-shooting, and review of migration monitoring data.

    Project Director for construction engineering inspection services for a landfill gas control system at the closed section of the Osceola Road Landfill, Seminole County, Florida.  The project involved the installation of landfill gas extraction wells, header piping, and a flare station. 

    Project Director for the design of a landfill gas collection and recovery (electrical generation) system for the North Dugas Landfill in Lafayette, Louisiana. The project was designed to provide research opportunities to assess landfill gas generation characteristics and to establish a long-term data base for landfill gas generation, collection, and recovery.

    Project Director for a landfill gas pump test program for Brevard County, Florida.  Supervised field program and report preparation.

    Project Director providing overall solid waste consulting engineering services to Volusia County, Florida. 

    Project Director for preparation requests for proposals for the recovery of landfill gas for Hillsborough County, Volusia County, and the Solid Waste Authority of Palm Beach County, Florida. Tasks included assessment of landfill gas generation and recovery, market assessment, coordination with vendors, vendor interviews and evaluation, and contract review.  

    Project Director for the design of landfill gas control systems for the Dyer Boulevard and Lantana Landfills, Palm Beach County, Florida.

    Project Director for a landfill gas investigation at the St. Augustine Road Landfill, Jacksonville, Florida. Health and Safety impacts were assessed to determine if the site was useable as an active recreational park (i.e., ballfields).

    Expert witness service dealing with a gas explosion at an apartment in Clearwater, Florida, which killed two people. One of the alleged sources of gas was from buried marsh deposits beneath the apartment complex which exploded. Provided independent engineering assessments and depositions during the case. Represented the defendants in the case.

  • Project Director for the preparation of Title V permits for the Perdido Landfill (Escambia County), Tomoka Farms Road Landfill (Volusia County), and North Central Landfill (Polk County) pursuant to the requirements of the Clean Air Act (CAA) and the New Source Performance Standards/Emission Guidelines for municipal solid waste landfills.  The permit application process included emissions inventories, estimation of non-methane organic compounds (NMOCs) emissions, preparation of Title V application, and coordination with regulatory agencies.

Solid Waste Studies

  • Project Director for preparation of a feasibility study for a County owned and financed and contract operated tire recycling facility in Macon County, Alabama.  The study involved a market evaluation for recycled waste tire products including crumb rubber, steel, and nylon, a waste tire supply assessment, preparation of a financial proforma, and evaluation of financing alternatives.  The study concluded that development of the project was feasible; however, the County ultimately elected to not proceed with the project.

    Project Director for Southern Waste Systems, Inc. to assess the field compaction efficiency of recovered screen materials from its C&D recycling facilities in a landfill setting.  The project involved developing, coordinating, and monitoring a three day compaction test at a Class III landfill in central Florida.  Over 50, 100-yard transfer truck loads of RSM were delivered to the site during the test period.  The waste was spread and compacted.  Topographic survey measurements were taken before and after to calculate the volume of landfill airspace consumed during the test period and the effective density that was achieved. 

    Project Director for preparation of a solid waste master plan for Orange County, Florida.  The master plan included evaluation of the County’s landfill, transfer station, and recycling operations for a 50-year planning horizon.  Conducted review of the County’s existing facilities and operations, prepared a siting study for new transfer station facilities, evaluated the maximum disposal capacity of the existing landfill facility, prepared a preliminary siting study for a new Class I landfill, developed a commercial recycling plan, and prepared a master plan report.

    Project Director for preparation of feasibility study for Macon County, Alabama to to site, design, construct, and operate a tire recycling facility in the County.  The County planned to own the facility, and contract the operations.  The study concluded that the facility could potentially earn sufficient revenue to cover operational costs and debt service, and contribute $250,000 per year to the County’s general fund.  The study was favorably received by the County, but they elected not to proceed with the project.

    Project Director for baseline testing for recovered screened material (RSM) for four construction, demolition, and debris recycling operations for Southern Waste Systems in Broward and Palm Beach County.  The testing was required pursuant to guidelines published from the Florida Department of Environmental Protection.  RSM was tested for heavy metals, semi-volatile and volatile organic compounds, and pesticides, and leachability of these compounds.  The purpose of the baseline testing was to determine appropriate end uses for the RSM such as residential, commercial, or industrial fill.  Projects also included preparation of facility permit modifications to allow for appropriate off-site use of RSM.

    Project Director for development of a solid waste special assessment program for the Broward Solid Waste Disposal District.  The project involved evaluation of alternative special assessment strategies and programs used by other counties and municipalities throughout Florida and elsewhere, field testing to develop generation estimates for commercial properties, preparation of the organization and procedures for implementing a special assessment, and development of the preliminary assessment roles.  The District includes 25 separate municipalities and the unincorporated areas of Broward County.

    Project Director for a multi-year solid waste generation study for Seminole County, Florida.  The County contracts out residential collection services in the unincorporated areas.  The contracts between the County and the haulers requires that the per household generation rate be verified through field testing.  Mr. Gardner was in responsible charge of the route testing, report preparation, and coordination with the County.

    Participated in the development of the Dorchester County, Maryland, 10-year solid waste management plan. Evaluated existing collection systems and landfills; developed conceptual designs and cost estimates for a resource recovery facility (modular incinerator) and an 80-ton-per-day transfer station; supervised a solid waste weighing and characterization program; and recommended modifications to the County's disposal and collection system.

    Prepared analysis for Polk County, Florida, Department of Solid Waste to assess long-term staffing, budgets, and schedules to support County projects.

    Provided expert witness services to evaluate damages resulting from an alleged breach of contract between Penobscot Energy Recovery Corporation and eight municipalities in Maine. Tasks included document review of independent engineering estimates, preparation of engineering report, and expert witness testimony for the eight municipalities.

    Project Director for a two-season solid waste composition study for Polk County, Florida. The study was conducted at the County's three landfills and included 31 waste components. Residential, commercial, and industrial wastes were sampled during the waste characterization events.

    Project Director for a two-season solid waste composition study for Lake County, Florida.

    Project Director for a four-season solid waste composition study for Volusia County, Florida.

    Project Director for an independent evaluation of Hillsborough County, Florida's proposed solid waste collection system modifications. Prepared report presenting findings of program review and presented recommendations for system modifications and procurement approaches.

    Project Director for evaluation of inclusion of municipal solid waste composting into Hillsborough County, Florida's solid waste system. Evaluation involved assessment of a proposed vendor's proposal for composting solid waste with a new proprietary process. Provided letter report to County presenting technical review of process and recommendations.

    Project Director for the Solid Waste Rate Stratification Study for Polk County, Florida, to determine the County's actual cost of disposing each of the six major elements of the solid waste stream in the County.  The results of the study were used in the solid waste planning process to determine whether or not the County should continue with its "single rate program" or begin charging a stratified rate based on the type of solid waste.

    Project Director for projects with Polk County, Lake County, and the City of Lighthouse Point, Florida to determine solid waste generation factors for each of the residential classes.  These factors will then be utilized to determine the appropriate disposal and collection rate to be charged to each residential class.

    Evaluated, on behalf of Polk County, Florida the economic feasibility of an out-of-county transfer and disposal proposal by USA Waste.  The evaluation included preliminary cost allocation modeling, evaluation of current operation, maintenance, and capital costs, review of yearly budgets, and comparison with actual costs, and preparation of final report to the County.

    Project Director for a cost accounting study of the City of Riveria Beach’s, Florida solid waste collection and management system. The purpose of the study was to determine the actual cost of providing solid waste collection services.  The results of this study were used in assessing the feasibility of privatizing the Solid Waste Department.

  • Assisted the Seminole County, Florida, Solid Waste Management Department prepare a “bid” against private vendors to continue to operate the County’s solid waste management system.  Services included detailed assessment of County’s budget and actual solid waste management expenditures, cost allocation modeling, preparation of “bid” proposal package, and assistance during presentation to the Board of County Commissioners.

Solid Waste Facilities

  • Project Director for various permitting and environmental investigations for Southern Waste System’s Sun Recycling Construction Demolition and Debris material recovery facilities located in Palm Beach County and Broward County, Florida.  Projects included solid waste facility permit modifications for the Sun I, II, III, IV, and V Recycling Facilities, updates to financial assurance documentation, requests for increase in throughput capacity, preparation of Environmental Resource Permits, and preparation of recovered screen material baseline sampling and testing reports for these facilities.  Coordinated with the Broward County Department of Planning and Environmental Protection, the Palm Beach County Department of Health Solid Waste Facility permit, Palm Beach County Solid Waste Authority, and the Florida Department of Environmental Protection

    Project Director for the assessment of commercial recycling for the Solid Waste Authority of Palm Beach County, Florida. The project involved an assessment of County's commercial waste stream, collection methods, and costs.

    Project Director for the complete design, permitting, construction oversight, start-up and shakedown testing of a 110 ton per day material recovery facility for Reedy Creek Improvement District (Walt Disney World), Lake Buena Vista, Florida. The system provides semi-automated segregation of paper, cans, plastic and glass containers; climate controlled processing area; storage for processed materials; employee facilities; and public education and viewing areas.

  • Project Director for a solid waste collection rate study and evaluation of yard waste processing facility for the City of Riviera Beach, Florida.

Environmental Investigations

Mr. Gardner has directed numerous environmental site assessments, contamination assessments, remedial action plans, and remedial construction projects.  Project sites have included fuel storage facilities, vehicle maintenance facilities, truck stops, chemical processing plants, active and closed landfill sites, abandoned chemical disposal sites, and superfund sites. Chemical contamination encountered in both soil and groundwater media has included petroleum, heavy metals, dioxin, pesticides, heavy metals, PCB's, and solvents. Several notable projects are listed below: 

  • Project Director for the completion of over 20 Phase II environmental assessments in a four week time frame. Project involved mobilizing multiple field teams to complete the assessment (field work and laboratory analysis) and prepare the reports on a fast-track basis to support a large real estate transaction.

    Project Director for investigations and remedial actions of oil, heavy metal, solvent and fuel contamination at four pre-stressed concrete plants in Florida.

    Project Director for a Phase II contamination assessment at an asphalt storage facility in Port Everglades, Florida. The project involved the installation of over 80 soil borings and 20 groundwater monitoring wells, soil and groundwater samples, and report preparation. Field work was completed in one week under an accelerated schedule and extremely difficult site conditions (e.g., high temperatures from the operational facility, piping galleries, and utilities).

    Project Director for several dozen environmental assessments related to commercial and industrial real estate transactions. These projects involved the review of site history, past disposal practices, current waste handling practices, ongoing operations, regulatory files, and site records as well as the preparation of reports. These investigations were typically performed under tight time restraints due to real estate closing dates.

    Project Director for the contamination assessment, remedial action plan, and remediation of an abandoned pulp and paper residue landfill in Miami, Florida. Site problems included lead, PCB, and dioxin contamination. Supervised the preparation of reports, plans and remedial construction.

    Project Director of a contamination assessment of a chemical production and packaging facility located in west central Florida. The project was conducted under consent order with the Florida Department of Environmental Regulations and involved an extensive assessment of the affects of 30 years of plant operations on the soil, surface water, and shallow and deep groundwater at the site. This involved detailed geochemical, hydrogeological, and electromagnetic studies of the site, including extensive drilling and sampling activities.

    Project Director for the preparation of spill management plans and a construction permit application for a chemical repackaging facility in Tampa, Florida. This project involved design of structural spill containment facilities for large above-ground chemical storage tanks in order to separate stormwater runoff from tank spillage.  The design also included separate stormwater and chemical spill collection sewers, an automated pumping station, and a 6,000-gallon holding tank.

    Project Director for the preparation of a contamination assessment plan and remedial action plan for soil and groundwater contaminated by wash-down water from a heavy equipment facility in Miami, Florida. Project included engineering for the installation of a new zero-discharge washwater recycle/treatment plant, soil removal and a year of groundwater monitoring.

    Project Director for the preparation of a contamination assessment plan and report, and remedial action plan for a shopping center site in Hillsborough County, Florida, contaminated by a perchloroethylene spill. Activities included testing soil, groundwater, and surface water; permitting with the Florida Department of Environmental Regulation; and coordination and oversight of subcontractors performing hazardous soil excavation and disposal.

    Project Director for an environmental and regulatory audit of a major agricultural business in southern Florida. Tasks included site visits, personnel interviews, regulatory compliance audit, and preparation of final audit report. The audit included pesticide handling facilities, food processing and packaging facilities, fuel handling facilities, and personnel safety.

    Project Director for contamination assessment and remedial action plan for closure of an underground storage tank at the Fort Lauderdale Airport.

    Prepared drawings, specifications, and cost estimates for the design of remedial measures (i.e., excavation and removal, backfill, and transportation for final disposal at the RCRA disposal facility) at the Krysowaty Farm Superfund Site, New Jersey.

    Assessed contaminant transport pathways for Sac River and Fulbright Landfill Superfund projects, Missouri.

    Assisted in developing a technical resource document for the EPA to aid permit reviewers in evaluating hazardous waste landfill closure and post-closure plans. 

    Reviewed cost models for closure and post-closure care activities at hazardous waste disposal facilities (landfills and surface impoundments) in accordance with requirements of 40 CFR Parts 264 and 265.

    Developed mathematical model estimating the contaminant releases from hazardous, waste storage piles due to wind erosion, water erosion, runoff, and volatilization.  The model was incorporated into the EPA's Risk-Cost Model for use in preparing Regulatory Impact Analyses.

    Researched and reported to the EPA on the state-of-the-art leak detection methods for underground storage tanks.

    Field investigation and engineering analysis of a petroleum storage lagoon facility in rural Virginia leading to a Part B permit application.

    Project Director for contamination assessment and remedial action plan for a dry cleaner facility located in south Dade County, Florida. Project involved widespread contaminant migration of dry cleaner solvents in the Biscayne Aquifer downgradient of the site. Installed temporary and permanent groundwater recovery and air stripper to control the source of the affected groundwater. Assisted in legal proceedings involving cost recovery.

    Provided expert witness services including background data review, site assessment, and expert testimony in a cost recovery case involving a Superfund landfill site in North Miami Beach, Florida. Testified concerning the presence of hazardous substances commonly found in municipal solid waste.

    Project Director for development of underground storage tank management program for Southern Prestressed, a large precast concrete company located throughout Florida and Georgia, to comply with Florida Department of Environmental Regulation and EPA underground storage tank requirements.

    Project Director for site investigations and preparation of plans and specifications for SPCC improvement to over 230 fuel storage and dispensing facilities at Dahlgren Naval Surface Warfare Center, Dahlgren, Virginia.

  • Project Director for contamination assessment for airline catering service facilities in Orlando and Miami. Facilities included several underground storage tanks with suspected petroleum releases to surface soils and the groundwater. Site investigations conducted to define limits of affected soil and groundwater.  Initial remedial action (IRA) implemented at one facility in Orlando to remove excessively contaminated soils.  A contamination assessment report prepared and estimates for remediation and long-term monitoring developed.

Public Works Engineering

  • Design of a 10,000-bbl JP-4 fuel storage/POL operations facility at the Warfield Air National Guard Base, Baltimore, Maryland. Project included design of above-ground and below-ground tanks (steel and fiberglass), spill protection controls, cathodic protection, and fuel system.

    Senior Project Engineer for the design of a 990,000-gallon fuel/oil storage tank farm at the Marine Corps Development and Education Command, Quantico, Virginia, including a new 5,000-foot water main to service the facility.

  • Design of a 2,500-bbl JP-4 fuel storage/POL operations facility at Yeager Airport, West Virginia Air National Guard, Charleston, West Virginia. Project involved repair and rehabilitation of existing fuel dispensing system; a new 2,500-bbl above-ground storage tank, spill controls, containment and other environmental controls; fire protection; expansion and rehabilitation of existing POL facility; and selection and design of LOX storage facility.

Expert Witness and Legal Support

  • Provided litigation technical support to Holmes County, Florida in defense of a suit brought by City Environmental Services against the County regarding Holmes County Landfill.  Mr. Gardner assisted Mr. Tom Pelham, Esq. during depositions of CES’ expert and factual witnesses.  Mr. Gardner also provided expert testimony concerning damages during trial in February 1998.  Holmes County prevailed in the jury trial.  

    Provided technical support and prepared expert opinion report for Dade County, Florida regarding landfill gas migration and odor problems at its North Dade Landfill.  An adjacent commercial interest filed a complaint opposing the issuance of an operating permit for landfill.  Mr. Gardner assisted the County defend its permit application.  A settlement was reached with the party opposing the permit application in 1995.   

    Provided expert witness services on behalf of Golder Associates, Inc. (Golder) in a suit brought by Anderson Columbia Environmental, Inc. against Golder relating to the design and construction of the closure for the Pickettville Road Landfill.  Mr. Gardner provided written opinions regarding construction issues and costs, design, and standard of care, and was deposed in preparation for trial in August 1998.  Mr. Gardner provided expert testimony during the jury trial in November 1999.   The jury was not able to reach a verdict and the judge declared a mistrial. 

    Provided expert witness services to evaluate damages resulting from an alleged breach of contract between Penobscot Energy Recovery Corporation and eight municipalities in Maine. Tasks included document review of independent engineering estimates, preparation of damage cost estimates, and preparation of an engineering report to support the court case. Mr. Gardner's client won the case. 

    Provided expert opinion and testimony during a CERCLA cost recovery case (Marriott versus Simpkins Paper Company) in Federal District Court, Miami, Florida.  The case was decided in Marriott’s favor in late 1995.  Mr. Gardner testified concerning the various phases of SCS’ contamination, remedial design, remediation, and closure activities.   

    Expert witness services dealing with a gas explosion at an apartment in Clearwater, Florida, which killed two people.  One of the alleged sources of gas was from buried marsh deposits beneath the apartment complex. Provided independent engineering assessments and depositions during the case. Represented the defendants in the case.  The case was settled out of court. 

    Expert witness services to provide engineering evaluation of the feasibility of expanding the Hackensack Meadowland Development Commission's 1-E Landfill.  Tasks included evaluation of hydrogeologic, geotechnical, and engineering documentation; cost evaluations, preparation of engineering report presenting findings of evaluation, depositions, and expert testimony during administrative hearings.

    Expert witness services with respect to the Municiport Landfill, North Miami Beach, Florida. Services included review of previous reports and providing expert opinion with regard to source of groundwater contamination that had been detected on-site. 

    Expert witness services relating to eminent domain proceedings supporting a landfill expansion in Pensacola, Florida. Services have included review of previous engineering reports and formulation of an engineering opinion regarding the reasonableness of Escambia County's solid waste landfill master plan. The case was settled out of court. 

  • Provided landfill gas technical support to the law firm of Fowler White Boggs Banker, who was defending an engineering firm relative to a professional liability insurance claim. The claim was associated with an apartment complex developed over top of an old, closed landfill.  Services included a site visit, review of engineering reports, review of cost estimates, review of depositions, and meetings with legal team to discuss findings.   The matter was settled out of court in 2003.