Environmental Engineering and Sciences

Sustainable solutions…

For your business and the environment

CEC is ranked #98 on Engineering News-Record‘s 2022 list of the Top 200 Environmental Firms. Our coordinated team of experienced engineers, scientists, geologists, hydrogeologists, and technicians helps you manage environmental liabilities, regulatory obligations, risk management, and environmental stewardship. With a focus on protecting human health and the environment, we identify practical remediation technologies for hazard mitigation, negotiate with regulators, and implement remedial plans to obtain site closure certifications. We work with commercial and industrial clients, as well as community and economic development agencies to assess, remediate, and redevelop properties and Superfund sites. Using advanced statistical analysis and computer groundwater modeling, we can provide solutions to contamination problems.

CEC is ranked at #14 in Site Assessment and Compliance and #19 in Chemical and Soil Remediation among the Top 500 Design Firms by Engineering News-Record.

  • Phase I Environmental Site Assessments
  • Property Condition Assessments
  • Environmental Liability Assessments
  • Ecological & Human Risk Assessments & Modeling
  • Risk Screening
  • Litigation Support
  • Natural Resource Assessments
  • Regulated Materials Surveys

  • Phase II Environmental Site Assessments
  • Remedial Investigations
  • Site Characterization
  • Site Rehabilitation
  • Groundwater Condition Characterization
  • Data Acquisition and Analysis
  • Regulatory Interface & Risk Management Assistance
  • Alternatives Analyses, Risk Assessments & Remedial Design
  • Sampling & Characterization of Affected Media
  • Soil & Groundwater Sampling and Investigations
  • Superfund Site Remedial Designs
  • Brownfield Redevelopment Services
  • RCRA/CERCLA Feasibility Studies
  • Grant Application Preparation and Amendment Assistance
  • Asbestos and Lead Abatement
  • Soil & Groundwater Remediation
  • Contaminant Fate & Transport Analysis
  • Spill Containment Design and Construction
  • Waste Treatment, Disposal & Transportation Coordination
  • Site Closure Certification
  • Decommissioning of Storage Tank Facilities

  • Groundwater Monitoring & Assessment
  • Hydrogeologic Investigations, Exploration & Assessment
  • Aquifer Testing & Evaluation
  • Groundwater Studies
  • Groundwater Flow and Solute Transport Modeling
  • Monitoring Well Network Design & Installation
  • Well-field Siting and Expansion Projects
  • Well-field Evaluation Studies
  • Well-head Protection Plans & Studies
  • Pumping Well and Network Design
  • Large-Scale Pumping Tests

  • Auditing & Compliance Plans
  • Permit & Regulatory Compliance Status
  • Environmental Compliance Audits & Hazard Assessments
  • Hazardous Material Surveys
  • RCRA, CERCLA, CWA, CAA, TSCA, SDWA, OSHA, and State/Local Requirement Compliance
  • Stormwater Sampling & Permitting
  • NPDES Permitting Support
  • Environmental Management Systems Development
  • Environmental Policy Development
  • Preparation of Health & Safety Plans
  • Storage Tank Permitting & Closure Documentation
  • Monitoring Plans
  • Spill Contingency Plans
  • Overfill Protection Design
Tom Maher, P.G.

Thomas Maher, P.G.

Environmental Engineering and Sciences Lead

(412) 249-3135 | Read Bio

Tom Maher, P.G.

Mr. Maher is a Vice President and CEC’s corporate Environmental Engineering and Sciences Practice Lead. He has more than 35 years of experience in leading site investigation and remediation projects and performing environmental permitting, Phase I and II environmental site assessments, and compliance support for industrial facilities. These projects have included RCRA Corrective Action facility investigations and corrective measures implementations, CERCLA (Superfund) remedial investigations/feasibility studies and remediations, polychlorinated biphenal investigations and remediations, waste characterization and compliance, residual waster beneficial-use approvals, oil & gas-related investigations and remediations, environmental site assessments, industrial wastewater and stormwater NPDES permitting, underground storage tank (UST) and aboveground storage tank (AST) permitting and installation, detailed environmental regulatory compliance audits, environmental plan preparation (Stormwater Pollution Prevention Plans; Spill Prevention, Control, and Countermeasure Plans; Preparedness, Prevention, and Contingency Plans), and environmental regulatory submittals (Form R and biennial hazardous waste reports) for manufacturing and natural gas exploration and production companies. Mr. Maher’s geotechnical experience includes design and monitoring subsurface investigations for residential, commercial, and industrial developments; and geotechnical report preparation, including conclusions and recommendations for shallow and deep foundations, earthwork, floor slabs, pavement, retaining walls, mine subsidence risk reduction, groundwater and surface water control, cut and fill slopes, infiltration basins, sedimentation basins, cement-bentonite slurry, and other barrier walls.

Who We Serve

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