Management Staff Profiles

At Enviro-Sciences, our multidisciplinary staff offer clients a comprehensive source of environmental consulting, engineering, and construction expertise. We have specialists in numerous scientific, technical, health and safety, and construction disciplines, who are trained, experienced and ready to help with your next project.

Our nimble and flexible corporate structure encourages teamwork, and ensures that the right team members are assigned to meet and exceed your objective. Meet some of our key our team members below.

Irving D. Cohen, CEP, FACFEI

Chief Executive Officer


Direct Tel: 973-810-9001
Direct Fax: 973-810-9031
Cell: 973-615-4488
Main Office: 973-398-8183
Main Fax: 973-398-8037


Doctoral Studies, Occupational Safety and Health, New York University
M.E., Chemical Engineering, New York University
B.E., Chemical Engineering, City College of New York


Academy Board Certified Environmental Professional
Fellow of the American College of Forensic Examiners Institute
NJ Licensed Subsurface Evaluation and Closure

Professional Background

Mr. Cohen has been the Chief Executive Officer and Chairman of the Board of ESI since its inception in 1975. His experience encompasses all aspects of environmental consulting. Mr. Cohen has testified as an expert witness at all levels of the judiciary system.

Project Experience

Engineering and Design
Performed high-polymer, organic, petrochemical and inorganic process design of facilities, including the preparation of process and instrumentation flow diagrams.
Incorporated process modifications and treatment for pollution control, environmental occupational safety and health aspects for chemical facilities producing organic, petrochemical and inorganic compounds.
Conducted numerous industrial waste surveys and managed pollution equipment installations.

Environmental Impact Assessments
Managed numerous environmental impact reports for onshore and offshore natural gas pipelines in the north, northeastern and southeastern U.S.
Managed environmental impact reports for Liquified Natural Gas Terminals, proposed and operating, for the East Coast of the U.S.

Directed the environmental program, leading to the preparation of the environmental impact report and permitting of the Coal Gasification Plant, using the Lurgi Process, constructed in Beulah, North Dakota.
Directed the environmental program for the evaluation of production of fuel oil from tar sands in Kentucky.
Directed the environmental program for permitting and the preparation of the environmental impact report for a VLCC terminal and topping refinery in Eastport, Maine.

Permitting and Licensing
Directed preparation of environmental permit acquisition for the design of PSD-related air quality monitoring and stack testing programs. Assisted clients with obtaining air and wastewater permits for operations.

Property Assessments
Directed numerous environmental liability audits for public and private clients designed to satisfy the full range of needs of all interested parties.
Represented clients in discussions with regulatory agencies, lenders, and other parties in transactions to ensure that programs are technically and financially acceptable.

Site Audits & Environmental Liability Analysis
Conducted many worldwide Environmental, Health and Safety Audits and Environmental Liability Analyses of chemical, petroleum, hotels, commercial high / low rise buildings, refrigerated warehouses and cosmetic operations. Developed ESI’s audit protocols.

Site Remediation
Directed numerous environmental delineations and remedial actions for a wide range of clients, representing both buyer and seller, for regulatory compliance, financial institution requirements or due diligence reviews.
Prepared conceptual designs of groundwater decontamination processes for chromium removal and for treatment of gaseous effluents from processing plants.
Managed initial evaluations, sampling plan design, contaminant delineation, data interpretation and correction of environmental problems.

Site/Route Selection
Managed environmental studies for proposed oil storage facilities, synthetic natural gas and liquefied natural gas plants, oil and gas pipelines, pumped storage facilities, coal gasification operations and coal mining project.

Professional Affiliations

Academy of Board Certified Environmental Professionals
Air & Waste Management Association
American College of Forensic Examiners Institute
American Industrial Hygiene Association
American Institute of Chemical Engineers
International Association for Pollution Control
National Association of Environmental Professionals

John I. Gear, LSRP

Vice President, Hydrogeology


Direct Tel: 973-810-9005
Direct Fax: 973-810-9035
Cell: 201-513-6152
Main Office: 973-398-8183
Main Fax: 973-398-8037


B.A., Geology, State University of New York, College at Buffalo


NJDEP Licensed Site Remediation Professional No. 587819
NJDEP Underground Storage Tanks Certification Subsurface Evaluation – License No. 3095
North Carolina Registered Site Manager
Occupational Safety and Health Administration, Hazardous
Waste Operations and Emergency Response Training:
40-hour basic course
8-hour refresher course
8-hour supervisor course
24-hour initial RCRA training

Professional Background

Mr. Gear has 20 years of hydrogeologic, geologic, remediation and project management experience in performing multi-phase environmental investigations, with emphasis on hydrogeologic investigation of groundwater contamination. Mr. Gear has worked closely with numerous state and federal regulatory agencies at sites throughout the country.

Project Experience

Environmental Assessments
Designed and implemented a Phase II investigation program used for a 20-site nationwide merger and acquisition divestiture. Developed remedial programs and cleanup costs to facilitate transaction of the properties.
Managed the redevelopment of a 40-acre brownfield site into a 200-unit housing complex.

Conducted soil, soil vapor, and groundwater investigations associated with underground storage tank releases, including supervising the installation of monitoring wells and soil borings.

Performed numerous aquifer characterization tests and subsequent data interpretation.

Remediation/Construction Management
Managed the design, installation, construction, operation and maintenance of numerous groundwater and soil vapor treatment and recovery systems. Designed and constructed a high-vacuum, dual phase SVE pilot tests utilizing a liquid ring pump. Data obtained was used to determine vapor and liquid flow rates, vapor concentrations, radius of influence and final withdrawal system configuration. Managed the recovery system optimization for a free product recovery system utilizing horizontal wells at a Pennsylvania refinery. Designed and implemented the insitu treatment of contaminated groundwater using Fenton’s chemistry. Designed and constructed a SVE/AS system for the remediation of a spill from a retail gasoline station.

Managed state and local permits (air, TWA and NJPDES-DSW) related to effluent discharge and prepared standard client and NJDEP correspondence related to the site cleanups.

Hydrogeologic Investigation
Performed geologic and hydrogeologic investigations for natural gas pipelines and NPDES applications, including supervision of monitoring well installation and soil sampling programs, performing soil vapor studies and installing groundwater remedial systems, preparing cost estimates, and writing compliance reports.

Modeled subsurface environments through aquifer characterization studies, contaminant fate and transport modeling, analytical data interpretation, groundwater contour maps, and computer simulations including the use of
Modflow, Model Maker, Tectypl and Surfer.

Conducted and supervised numerous constant rate pumping tests, and designed and operated pumping equipment used during those tests.

Legal Support
Provided legal assistance for two industrial clients to recover costs associated with historic releases. Provided technical data associated with historic site use and contamination. Provided detailed reports summarizing the remedial investigation\actions and associated cost allocation.

Laura M. Clifford, LSRP

Manager, Hydrogeology


Direct: 973-810-9012
Direct Fax: 973-810-9042
Cell: 973-356-9507
Main Office: 973-398-8183
Main Fax: 973-398-8037


B.S., Geoscience, Montclair State University


NJDEP Licensed Site Remediation Professional No. 575230
Occupational Safety and Health Administration, Hazardous
Waste Operations and Emergency Response Training:
40-Hour Basic Course
8-Hour Annual Refresher
8-Hour Supervisor

Professional Background

Ms. Clifford has over 15 years’ experience of hydrogeologic and geological assessment of sites known or suspected to be contaminated by hazardous materials. Ms. Clifford has acquired supervising and managing skills necessary for and provided project management services on multi-phased environmental investigations and remediation at various industrial/commercial sites.

Project Experience

Environmental Assessment/Site Investigation
Characterized the aquifer and assessed the vertical distribution of tetrachloroethene (PCE) from a former waste oil tank at a former knitting mill located in New Jersey. Investigation included the installation of one 300-foot rock-core boring, packer testing and collection of groundwater samples from discrete water-bearing zones observed during the coring of the 300-foot borehole. Interpretation of the geological data enabled additional nested bedrock wells to be installed accurately and efficiently to complete vertical delineation with NJDEP approval.

Field geologist for the Phase I and Phase II assessment of two surfactant-specialty chemical manufacturer plant in Texas and Ohio, and dye manufacturing plant in New Jersey. Investigations were conducted to determine impact of activities prior to sale of property. Investigations included, but not limited to, identification of contaminant sources, soil sampling, sediment sampling, monitoring well installation, groundwater sampling, and slug testing. For the Texas site, she prepared the summary report for all field activities, results and recommendations to be submitted to the regulatory agencies. For the New Jersey site, she prepared a Remedial Investigation Workplan for the next phase of investigation.

Designed and implemented a soil and groundwater investigation at an auto repair shop, former service station. The investigation included the completion of soil borings to determine if residual contamination remains in the soil and the extent of free product in soils. Groundwater monitoring wells were installed along the upgradient property boundary to determine if contamination is migrating onsite from a potential offsite source. Based on field observations, a product sample was collected from on-site and off-site monitoring wells for analysis and fingerprinting to compare composition characteristics. The results of the investigation indicated that no further action is necessary for soil; free product is localized to specific monitoring well location; and identified that a second groundwater plume contaminated with chlorinated solvents exists, not associated with the site’s current or former operations.

Field hydrogeologist for a groundwater-sampling event conducted as part of a groundwater-monitoring program for an oil refinery located in Pennsylvania. The site consisted of over 75 groundwater monitoring wells. A low flow groundwater sampling technique was utilized. All Pennsylvania regulatory agencies requirements were met.

Conducted and managed a soil and groundwater investigation for an electronics manufacturer located in New Jersey. The investigation included the field screening of soils for Dense Non-Aqueous Phase Liquid (DNAPL), the sampling of soils to delineate and confirm existing boundaries for PCE contamination in order to place a Deed Notice, installation of additional bedrock monitoring wells to further delineate groundwater contamination, geophysical surveys for the new and existing wells to characterize geological conditions as well as to identify water-bearing zones, and implementation of a groundwater monitoring program. Fieldwork was completed both onsite and offsite and under supervision of the NJDEP ISRA program.

Implemented a soil boring and monitoring well program to delineate the extent of contamination associated with a surfactant-specialty chemical manufacturer plant located in New York. Work included soil sampling, completion of soil borings to further identify and document a confining layer, monitoring well installation, groundwater sampling, free product sampling, and report preparation. The report preparation entailed merging existing data and the newly generated data, along with the paperwork to enter into the New York State Department of Environmental Conservation (NYSDEC) Voluntary Cleanup Program (VCP).

Designed and managed a soil and groundwater investigation within a Port Authority’s construction project corridor. The project corridor was located in New Jersey and the project was to build a new Intermodal Rail Transfer Facility to support existing and future rail operations. The environmental portion of the projection was part of the Port Authority’s planning stage. The focus of the environmental investigation was to determine/assess whether any environmental issues pertaining to soil or groundwater, including unexploded ordinances, would significantly affect the proposed rail and roadway alignments, as well as worker safety and excavated materials management. A portion of the investigation was to be completed in what appeared to be the northern fringe of the former landfill. A Sanitary Landfill Disruption Permit Application was prepared and submitted to NJDEP and the NJDEP subsequently granted a Sanitary Landfill Disruption Approval. More than one round of investigation/assessment was required to fully understand the nature of the potential impacts and in order to provide the necessary recommendations. All internal deadlines set by the Port Authority were met. Workplans, workplan addendums, and final assessment reports were submitted to the NJDEP.

Assessed the potential for off-site vapor intrusion impacts related to shallow groundwater contamination associated with a defense contractor’s former facility located in New Jersey. This was a phased project based on the progress of the delineation of the shallow groundwater transmitting zone. In total 24 residential properties were evaluated and/or investigated, including the canvassingof basement sumps. Vapor intrusion investigations efforts were conducted with NJDEP approvals.

Assistant project manager and principal hydrogeologist for a former arsenal located in New Jersey. Worked closely with the Untied States Army Corps of Engineers and the NJDEP in conducting remedial investigations, feasibility studies, and remedial designs for the former arsenal. Developed individual groundwater remedial action workplans for eight distinct groundwater areas of concerns including a Phase 1 Groundwater Remedial Action Workplan – Groundwater Treatability Study and a Treatability Study – Vertical Profiling Scope of Work. Field efforts included (a) soil and groundwater investigations: (i) to delineate the groundwater plumes, (ii) to collect site-specific data for bench scale treatability testing and proposed remedial actions, (iii) to identify non-Department of Defense sources of contamination where warranted (iv) to collect enough data to support the proposed remedial action workplans, and (v) to determine if the concentrations of VOCs in groundwater proposed a potential Indoor Air Quality threat, (b) treatability testing, and (c) membrane interface probe (MIP) screening. All workplans and investigation reports were submitted to and approved by the NJDEP.


Project hydrogeologist and field supervisor for remedial actions at a former chemical company located in New Jersey. Involvement included final closure of a sludge lagoon by excavating residual sludge lagoon soils and groundwater by application of in-situ remediation. In-situ remediation consisted of injection Fenton’s reagent into the groundwater. During installation of the temporary points, residual sludge from a former lagoon was identified, excavated, and disposed of offsite. Based on the results of the remedial actions, the results from the post-remedial sampling events were below all NJDEP standards; therefore, the NJDEP issued a no further action approval for the site.

Project Manager and lead hydrogeologist for the investigation and design of the remedial action for a former knitting mill in New Jersey. Remedial actions for soil included the closure of a 10,000-gallon No. 2 fuel oil underground storage tank, abandonment of a former septic system, and soil sampling to complete delineation for the filing of the Deed Notice as approved by the NJDEP and local ordinances. As for groundwater, investigation confirmed and delineated the extent of chlorinated solvent contamination in the overburden and bedrock aquifers at the site. Based on the results of the investigation it was found that an off-site receptor (industrial supply well) had been impacted. Multiple evaluations of remediation scenarios had been completed prior to final selection. The chosen remedial action consisted of in-situ treatment using Fenton’s Reagent. In-situ treatment was implemented and a post-remedial groundwater monitoring program was established. The groundwater analytical results of the groundwater monitoring program indicated the potential for additional source material. It appeared that the in-situ treatment “released” (from tight soils) additional chlorinated solvent contamination. The limited area of remaining source was identified and delineation though a saturated soil investigation. A Remedial Action Workplan Addendum, which included a proposal for a groundwater pump and treat system. The NJDEP approved groundwater Pump and Treat system was designed, installed and operating. Operations and Maintenance (O&M) and groundwater monitoring programs are in place. This case will be seeking NJDEP Soil and Groundwater permits and in turn requesting a Response Action Outcome (RAO) from the Licensed Site Remediation Professional (LSRP).

Conducted enhanced fluid recovery events at a commercial/light industrial complex building in Connecticut and a service station in New Jersey. The events removed approximately 1,000 gallons of product from the site in Connecticut and 200 gallons in New Jersey.

Project manager and lead hydrogeologist for the investigation and design of the remedial action for a former service station in New Jersey. Investigative activities included installation of onsite groundwater monitoring wells, slug testing, a receptor evaluation, decommissioning of a dry well, and implementation of a quarterly groundwater-monitoring program. Results of the investigations indicated that onsite monitoring wells are impacted and no receptors were identified for the area. Based on data collected for the site, the NJDEP agreed to the installation of temporary points in order to establish a clean zone with the implementation of a quarterly groundwater monitoring program for onsite wells for the duration of one-year (decreasing trend needs to be documented). Delineation has been completed and a clean zone established. A CEA was established and the NJDEP issued a Groundwater Remedial Action Permit for Monitored Natural Attenuation. A limited restricted Response Action Outcome (RAO) was issued for the site.

Project manager for limited soil and multiple groundwater investigations and remedial efforts at a former asphalt paving operation in Flushing, New York. The limited soil investigation indicated that soils outside the separate phase product area are not impacted. The groundwater investigations defined/delineated the separate phase product (SPP) and the dissolved Volatile Organic Compound (VOC) plumes, as agreed by the New York State Department of Environmental Conservation (NYSDEC). A NYSDEC-approved groundwater monitoring program was established. Following a pilot test, which included a methane survey, a Remedial Action Plan and Operation, Maintenance, and Monitoring Plan to address the SPP and dissolved VOC plumes was submitted to and approved by the NYSDEC. A Dual Phase, High Vacuum Extraction System was installed and removed up to three feet of SPP, treated approximately 1,500 tons of soil and approximately 1,600,000 gallons of groundwater. In-situ Chemical Oxidation (ISCO) was then used to complete remediation. A Spill Closure Report is being prepared. NYSDEC closure is anticipated in 2017.

Project Manager and Field Supervisor for the offsite remediation of a defense contractor’s former facility located in New Jersey. Remediation activities included the excavation and off-site loading of impacted soil at a public park and a residential property adjacent to the former facility. The predominant compounds of concern were base neutrals and/or selected metals. To protect the public, during excavation activities, a dust monitoring program was established. Additionally, during remediation, close working relationships were maintained with the Township and the residential property owner. Both properties have been restored and the Remedial Action Reports submitted to the NJDEP. A No Further Action determination was issued by the NJDEP for each of these properties

Professional Affiliations

Association of Ground Water Scientists and Engineers

Betty Lou Resotka

Manager, Environmental Sciences


Direct Tel: 973-810-9018
Direct Fax: 973-810-9048
Cell: 973-713-0403
Main Office: 973-398-8183
Main Fax: 973-398-8037


Occupational Safety and Health Administration, Hazardous
Waste Operations and Emergency Response Training:
40-Hour Basic Course
8-hour Refresher Course


B.A., Environmental Science/Minor in Biology, Alfred University

Professional Background

Ms. Resotka has over 30 years of experience in the environmental field specializing in Site Assessments, and Due Diligence, as well as Site Investigation work. She also has a comprehensive understanding of regulatory requirements to assess compliance with environmental standards and regulations.

Project Experience

Site Assessments

Project Manager for numerous Phase I Environmental Site Assessments at commercial and industrial properties in New Jersey and throughout the United States. This includes single property transactions as well as multi-property portfolios. In addition to project management, Ms. Resotka has established report outlines and procedures for conducting surveys, and has kept abreast of the changing issues involved with Phase I Environmental Site Assessments.

Site Investigation/Remediation

Project Manager for Site Investigation/Remediation work at commercial and industrial properties in New Jersey as well as other states. Recent work has included oversight of investigations involving soil, groundwater and vapor intrusion. Case closure has been achieved through a variety of remediation measures, ranging from soil excavations to the establishment of institutional controls.

Environmental Compliance

Project Manager for many cases involved in the New Jersey Department of Environmental Protection (NJDEP) Industrial Site Recovery Act (ISRA), a transaction-based regulation. Recent work in New Jersey has been centered on NJDEP’s implementation of the Site Remediation Reform Act (SRRA) and the introduction of Licensed Site Remediation Professional (LSRP) program. Ms. Resotka has also conducted Environmental Compliance and Due Diligence Assessments for corporations and individual companies, and has assisted clients with other regulatory requirements, including property transaction laws, wastewater discharges, stormwater, hazardous waste, PCBs, Right To Know, etc.

Corporate Environmental Affairs

Project Manager in the Corporate Environmental Affairs department for a large plastics manufacturing corporation, with several plants throughout the United States. Ms. Resotka initiated and administered environmental compliance measures for corporate facilities.

Industrial Pretreatment Program (IPP) Coordinator & Laboratory Manager

IPP Coordinator and Laboratory Manager at a wastewater treatment plant in New Jersey. As IPP Coordinator, Ms. Resotka assisted in the development of the Industrial Pretreatment Program, and was responsible for inspecting and evaluating industrial facilities for inclusion in the program, the development of industrial discharge permits and general program requirements. As Laboratory Manager, Ms. Resotka was responsible for supervising the collection and analysis of samples in accordance with state and federal regulations, and completing the Discharge Monitoring Reports and other reporting requirements.

Professional Affiliations

American Society for Testing and Materials Committee, E-50 Environmental Assessment

James M. Maguire

Manager, Hydrogeology


Direct Tel: 973-810-9020
Direct Fax: 973-810-9050
Cell: 973-997-0400
Main Office: 973-398-8183
Main Fax: 973-398-8037


B.S., Geology, University of Georgia


NJDEP Underground Storage Tank Certification
Subsurface Evaluation and Closure, License No. 0014689
Occupational Safety and Health Administration,
Hazardous Waste Operations and Emergency Response Training:
40- Hour Hazardous Site Worker
8-Hour Supervisor
Confined Space Entry
Competent Persons at Excavations
8- Hour Refresher – Annual
Certified Environmental Inspector
The Princeton Course Certificate, Groundwater Pollution and Hydrology

Professional Background

Mr. Maguire has more than 25 years of experience managing environmental projects with soil and groundwater concerns. He develops and implements hydrogeological investigations and remedial plans, performs technical analysis of data and directs on-site field activities for related services. His experience includes design, installation and operation of groundwater remediation systems for unique client needs.

Project Experience

Commissioned and managed a 4 million gallon per year groundwater-treatment system project at a northern NJ manufacturing facility. Operations effectively maintained hydraulic control under a NJPDES permit and reduced the total chlorinated solvents level by an order of magnitude. Through competitive bidding and negotiations with the NJDEP, reduced the client’s annual operating costs by 40 percent.
A Phase I Environmental Assessment was conducted for a major New York Financial Institution. 10 out-of-service underground storage tanks and 26 hydraulic lifts were identified at the former automobile dealership in Irvington, NJ. A preliminary Geoprobe soil investigation was conducted to determine the scope of work and provide potential cleanup costs. Gross contamination was indicated. In order to meet the time frame specified in a purchase agreement, removal of all hydraulic lifts, USTs and contaminated soil was completed in 90 days.

A Memorandum of Agreement was signed with the NJDEP and a Remedial Action Report submitted within 30 days of completion of field activities. NJDEP approved the No Further Action (NFA) proposal for the soils, which allowed demolition of the existing buildings and permitting for new construction. A groundwater investigation was conducted that included nine monitoring wells, aquifer characterization tests and negotiations for a monitoring program in a condensed time frame. An NFA was issued for groundwater based on fate and transport calculations in a petition for Classification Exception Area. Based on the NFAs, the client was able to secure a 25-year lease with a major retail chain. Total project time from contract to case closure was 15 months.

Provided claims adjustment services within the AIG Homeowners Environmental Liability Protection program for the worlds largest environmental investigations firm.

Provided accelerated groundwater remedial investigation to a New York Developer for a project in Elizabeth NJ. Based on the on-time completion of the work, which proved an off-site contamination source, the client was able to show his lender a successful Urban renewal project in New Jersey, take advantage of favorable lending rates, and refinance $800,000 into his next project.

Wrote requests for proposals, selected subcontractors and provided onsite project team coordination for cleanout, security and disposal of complex waste streams from a closed 450,000 square foot Hospital Medical Center in a suburb of New York City which was purchased by a major hotel chain. The closed facility had been vandalized and required expedited attention for the health and safety of the community, and regulatory compliance for the disposal of medical, hazardous, and recyclable waste. 1,900 rooms were inspected, cleared and secured in 20 days for NYSDEC inspection. Thus secured, inventoried and characterized, all wastes were properly manifested off site in less than five days.

Mr. Maguire has managed projects in Florida, Connecticut, Virginia, New York State, and California.

Mr. Maguire has served as project hydrogeologist on several projects where innovative or highly customized remedial solutions were required.

Professional Affiliations

Association of Ground Water Scientists and Engineers
Environmental Assessment Association
National Eagle Scout Association, Lifetime Member