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Leadership

Jennifer Geran

Jennifer has over 30 years of experience in environmental engineering, including over 21 years of experience as a consultant serving clients primarily through environmental permitting and compliance assistance. She has developed in-depth knowledge of federal and state air pollution regulations, Title V operating permits, New Source Review (NSR) pre-construction permitting, and air dispersion modeling. Prior to beginning her consulting career, she was employed with the Texas Air Control Board and the Texas Natural Resource Conservation Commission (TNRCC) as an air dispersion modeler and as Assistant Division Director for the Air Quality Planning Division for four years. Prior to that, she was a water rights permit engineer at the Texas Water Commission (TWC) for five years. Jennifer prepares and/or supervises the preparation of permit applicability analyses, NSR and Title V air quality permit applications, permit by rule registrations, air dispersion modeling analyses, emissions inventories, spill plans, storm water plans, environmental compliance manuals, environmental recordkeeping systems, and other environmental documents for a variety of industries. She also conducts environmental audits and provides expert witness testimony in contested case hearings.

Taras Lewus

Taras has over 16 years of experience in the environmental field focused on air quality compliance, particularly for petroleum refinery, upstream oil and gas, chemical plant, and pharmaceutical production clients. He has assisted clients with state and federal air quality compliance and permitting issues, identification of emission sources, compliance auditing, quantification of emissions, and conducting Federal and state regulatory applicability analyses. His experience includes Title V permit applications, Colorado, Wyoming, Louisiana, Pennsylvania, Delaware, Texas, and Kansas state air permit applications, emission inventories, RCRA applicability analyses, and PSD & NNSR permitting and applicability analyses. Taras also has Benzene Waste Operations NESHAP (BWON) and MACT experience, including Refinery MACT I & II, OLD, Heater and Boiler, RICE, PHARMA, Halogenated Solvent Cleaner, and MON MACT. Taras has also been involved in the data collection and reporting for numerous different subparts under EPA’s Mandatory GHG Reporting Rule including 40 CFR 98 Subparts C, W, X, Y, P, and MM. Taras also has offshore oil and gas production experience. He was specifically involved with the engineering and supervision of stimulation operations offshore in the Gulf Coast.

Randy D. Parmley, P.E.

Randy has over 35 years of experience in air quality consulting. His experience encompasses almost every aspect of air quality. Randy has worked extensively with the refining, petrochemical, and terminals industries and has a strong reputation preparing and negotiating large and complex Flexible, PAL, PSD, Maintenance Startup and Shutdown (MSS) and Title V permitting Projects as well as providing Consent Decree support. He has conducted regulatory, permitting, and modeling seminars in North America, South America, Europe and Asia. Randy’s expert witness experience includes contested permit hearings, serving as a neutral mediation expert in merger and acquisition disputes, disaster/event modeling evaluations and testimony, and a variety of health-effect related toxic tort support efforts. Randy has testified in court for industrial clients and provided deposition support on multiple occasions. His engineering and air quality background enables him to evaluate and communicate complex emission release and modelling concepts in an understandable and credible manner. As a result, such firms as Winstead, Fulbright & Jaworski, Baker –Botts, Jones-Day, Morgan-Lewis, and numerous other firms for expert witness support have used him.

Randy’s experience in working with capital project design teams to develop environmental analyses, NOx SIP evaluations, air regulatory compliance assessments, toxic risk evaluations, control strategy applications, and a variety of air-related and interdisciplinary environmental consulting applications complete his professional profile. Randy has served as the lead permitting and modelling consultant for over a dozen multi-billion dollar industrial expansions.

Stephen Sexton

Stephen has 17 years of experience in the environmental compliance and permitting field specializing in air quality permitting and compliance throughout the Gulf Coast Region. His consulting background encompasses a wide variety of facilities including refineries, petrochemical plants, cogeneration facilities, and bio-fuel facilities. Stephen has worked BWON compliance issues, TAB and BQ assistance, BWON sampling and sampling plan development. In addition, Stephen has worked multiple permitting projects involving bio-fuel facilities spanning several states from the design phase until permit issuance. Stephen has also worked closely with State Agencies on permitting activities involving large scale capital projects.

Stephen specializes in air quality permitting and has prepared or assisted in preparation of many new source review permit applications in Texas, Louisiana, Georgia and Mississippi and several Title V permit applications, permits-by-rule, standard permits, voluntary emission reduction permits (VERPs) and changes-to-qualified facility (SB 1126) applications.