Solvents Expert Witnesses

California

Industrial Hygiene, Public Health - mathematical modeling, asbestos, pesticides, carbon composite fibers, reproductive agents, solvents, aerosol movement, exposure reconstruction, dose reconstruction

- Ten years’ experience in counting and identification of asbestos fibers (1987 -1997) - Designed and documented clean-up and sampling procedures of USMC Harrier AV-8B mishap, Havelock, NC. Among the first scientists to collect data on damaged composite fiber materials (1988) - Designed, supervised, and assisted with cleanup of major asbestos removal project, Naval Air Rework Facility, MCAS Cherry Point, NC (1988) - Led team of physicians through Combat Trauma Care Training, Brooks AFB, Texas (1987) - Combat Casualty Care Training - Okinawa, Japan (1990) - Provided industrial hygiene support from Naval Base Subic, Philippines, for asbestos removal and remediation after major steam pipe explosion on board USS MIDWAY (1990) - Survived Mt. Pinatubo volcanic explosion, Subic Bay, Philippines. Provided industrial hygiene services and emergency response throughout Mt. Pinatubo disaster of June 1991, including asbestos identification. Sampled exposures to ash for traf...

San Francisco, California

Environmental, Geology - Hydrogeology, Groundwater, solvents, petroleum hydrocarbons, soil vapor, soil gas, vapor mitigation, dry cleaner, military base, military operations, groundwater modeling, fate & transport, site history , due diligence, cost allocation, cost recovery, CERCLA, NCP, RCRA, PRP identification

Ms. Shipman is a senior director and hydrogeologist. Her previous experience managing U.S. Air Force and Navy base cleanup work transformed to directing environmental work at five military base conversions. Ms. Shipman is experienced in strategy development for environmental compliance and management, regulatory agency negotiation and community and public outreach. She has provided expert testimony in California Superior Court regarding UST cleanup, vapor mitigation, and closure and deposition testimony in US Federal Court cases in California regarding sources and fate and transport of solvent releases to groundwater and environmental compliance of industrial operations. She directs litigation support projects that include groundwater flow and fate and transport modeling, cost allocation apportionment, and 3D GIS modeling of watersheds. Dorinda’s expertise includes site characterization, human and ecological risk evaluation, and remediation and risk management for dry cleaners a...

Coronado, California

Toxicology, Environmental - PFAS, benzene, PCE, ammonia, lead, petroleum hydrocarbons, vinyl chloride, solvents, forever chemicals, chlorinated hydrocarbons, arsenic, nitrates, metals, TCE, fertilizers, carbon monoxide, dioxins, trichloroethylene, pesticides, risk assessment

Dr. Ryer-Powder is the Principal Health Scientist at Environmental Health Decisions. She brings more than 30 years of experience in human health risk assessment, litigation support, and occupational toxicology to human health hazard and evaluation projects. Dr. Ryer-Powder is responsible for strategic preparation, project management, and evaluation of chemical toxicity for risk assessment and product hazard evaluation projects. She is called upon to investigate and analyze legal and regulatory issues and controversial claims regarding chemical causation of diseases in humans. Her solid technical background, coupled with her frequent involvement in risk and hazard evaluation projects, gives her a broad perspective on the technical, economic and regulatory considerations for human health hazard evaluation work. Dr. Ryer-Powder has done extensive work in the development of exposure levels for lead, petroleum fuels, and ammonia. She has comprehensively researched the toxicological iss...

Mill Valley, California

Neurology, Occupational Medicine - Neurotoxicology, Metals, Aluminum, Arsenic, Lead, Mercury, Manganese, Thallium, Tin, Zinc, Solvents, Pesticides, gases/ asphyxiants, Carbon Monoxide, Electromyography, Environmental, Chemical Exposures, Toxic Neuropathy, Mold, Head trauma

Dr. Rutchik is one of very few physicians in the United States board certified both in Neurology and Occupational and Environmental Medicine. He is also an associate professor of Medicine at UCSF where he taught medical students, medical residents and nurses. He is also an experienced California State Qualified Medical Examiner. He is a Fellow of both the American Academy of Neurology (AAN) and the American College of Occupational and Environmental Medicine (ACOEM). He provides clinical evaluations and treatment, including electromyography, of individuals and populations with suspected neurological illness secondary to workplace injuries or chemical exposure; neurological trauma, and neurological fitness for duty in safety sensitive populations. He has five office locations in Northern California; San Francisco, Richmond, Petaluma, Sacramento and Arcata, CA. Other services include independent medical examinations, medical record review, utilization review and consulting to ...

Kailua, Hawaii

Industrial Hygiene, Public Health - mathematical modeling, asbestos, pesticides, carbon composite fibers, reproductive agents, solvents, aerosol movement, exposure reconstruction, dose reconstruction

- Ten years’ experience in counting and identification of asbestos fibers (1987 -1997) - Designed and documented clean-up and sampling procedures of USMC Harrier AV-8B mishap, Havelock, NC. Among the first scientists to collect data on damaged composite fiber materials (1988) - Designed, supervised, and assisted with cleanup of major asbestos removal project, Naval Air Rework Facility, MCAS Cherry Point, NC (1988) - Led team of physicians through Combat Trauma Care Training, Brooks AFB, Texas (1987) - Combat Casualty Care Training - Okinawa, Japan (1990) - Provided industrial hygiene support from Naval Base Subic, Philippines, for asbestos removal and remediation after major steam pipe explosion on board USS MIDWAY (1990) - Survived Mt. Pinatubo volcanic explosion, Subic Bay, Philippines. Provided industrial hygiene services and emergency response throughout Mt. Pinatubo disaster of June 1991, including asbestos identification. Sampled exposures to ash for traf...

Raleigh, North Carolina

Toxicology, Infectious Diseases - Alcohol & drug impairment, Liquor liability & dram shop, Immunology, Allergic reactions, Skin & eye irritation, Inhalation toxicology, Medical devices, Postmortem toxicology, Metals, Air pollutants, Pesticides, Lead poisoning, Carbon monoxide poisoning, Solvents, Volatile organic compounds (VOCs), Toxic torts, Infectious diseases

Dr. Lehmann is an accomplished toxicologist with nearly 20 years of cross-sector experience spanning academia, industry, and government. He brings deep expertise in human and ecological risk assessment, toxicological mechanisms, pharmacology, and drug-related signal transduction pathways. Dr. Lehmann applies his scientific expertise to complex questions involving alcohol, drugs, environmental exposures, consumer products, and medical devices. His work integrates experimental toxicology, exposure assessment, and weight-of-evidence evaluation to assess potential health effects and causation. Drawing on his extensive research background and teaching experience, he is skilled at translating complex toxicological concepts into clear, accessible explanations for attorneys, courts, and other non-scientific audiences. Experience & Expertise: -Alcohol and Drug Toxicology: Expertise in the toxicology and pharmacology of alcohol, opioids, stimulants, cannabinoids, benzodiazepines, and other...