Quote To Live By: “Don’t go through life, grow through life – What you are will show in what you do”  -Eric Butterworth meets Thomas Edison


  • Environmental Assessments
  • Soil/Groundwater Investigations and Remediation
  • Quantitive Risk Assessment
  • Air Quality

  • Full Profile

    Arlene has 20 years of experience in environmental engineering and site investigation and remediation. Her experience includes development and implementation of environmental site assessments (ESAs) and remedial action programs, quantitative health risk assessment, and regulatory permitting and compliance auditing for sites in the US and Australia. Arlene has expertise in developing and managing RFP and contractor bid programs, and financial assurance estimating.  Arlene has developed FA for remediation and construction/demolition projects in the U.S. and Australia and has developed financial assurance calculators used by clients and adopted by regulatory agencies in Australia.  Arlene has undertaken work for a variety of clients including chemical manufacturers and distributors, petroleum companies, port authorities, municipalities, property owners/developers, lending institutions, and legal counsel. She has worked with multiple state and federal agencies in the US, having successfully brought projects to closure through development and implementation of remedial investigation programs, feasibility/corrective measures studies, remedial actions, and risk assessments for sites under RCRA corrective action, Superfund, and voluntary remedial action programs.


    • B.S., Environmental Engineering, Cal Poly San Luis Obispo, CA, 1995.


    • 40 – Hour OSHA Health & Safety Training
    • Santos Rev 7, 4WD and Heat Stress Training
    • EIT – California

    Key Projects

    Arlene’s project experience includes soil, groundwater, soil gas, and vapour intrusion investigations and remediation at sites impacted with chlorinated solvents (including TCE, PCE, and vinyl chloride), petroleum hydrocarbons, polynuclear aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCBs), and metals.

    Works include development, design, and operation and maintenance of air-sparging, multi-phase vacuum extraction and pump and treat systems utilizing granular activated carbon (GAC), reverse osmosis, ion-exchange, thermal/catalytic oxidation and in-situ chemical oxidation.

    She has completed human health risk assessments to support Preliminary Endangerment Assessments (PEAs) at school sites, and Baseline and Post-Remediation risk assessments for petroleum refineries/terminals, and chemical manufacturing/distribution facilities in the US and Australia. Arlene has also conducted environmental compliance audits at operating hazardous waste treatment, storage and disposal (TSD) facilities, and has conducted air emissions source testing for electric generating stations, hazardous waste management facilities, and paint coating facilities.

    Alrene’s recent project experience includes management of large scale remediation projects for petroleum refineries and bulk storage facilities in the US and Australia utilising a combination of and in-situ and ex-situ bioremediation for soils and multi-phase extraction and treatment for groundwater impacted by LNAPL. Soils remediation works included assessment, management and treatment of potentially acid sulphate soils (PASS).

    Her experience in Australia also includes development of management strategy and monitoring plants, environmental permit applications and financial assurance estimates for coal seem gas exploration and processing facilities.

    Arlene’s experience in the US includes Landfill projects, having successfully achieved closure of former RCRA Surface Impoundments and an inactive Landfill on which warehousing operations were being conducted in Kentucky. She successfully completed RCRA Facility Investigations, Interim Measures and design, and construction of Engineered Caps for each site.  For the former SIs, she successfully demonstrated that locally sourced clays could be used without a geosynthetic liner, and that field-based geotechnical measurements could be used in lieu of core samples and laboratory testing to demonstrate compliance with vertical permeability requirements, resulting in savings of over $1MM in capping costs.  For the historic Landfill, she successfully demonstrated that a combination of low permeability in-situ soils, effective grading, and asphalt pavement would achieve corrective measures objectives, saving approximately $2MM in capping costs. Arlene successfully negotiated closure with wastes and phase separated hydrocarbons (PSH) in-place at both sites with limited post-closure groundwater monitoring saving approximately $10MM in excavation and disposal costs.

    Arlene also managed a RCRA Landfill in post-closure care for which she successfully designed and implemented a cost effective solution involving enhanced aeration and biodegradation for treatment of leachate to meet new ammonia discharge limits in the renewed KPDES permit resulting in approximately $3MM in savings for disposal costs. She also participated in design of an above grade leachate collection system for an operating

    Landfill in California. Her responsibilities included design and materials selection for leachate and compressed air piping systems for 16 recovery wells. Design specifications required the system allow for expansion with changing conditions of the operating Landfill.