Over the last 30+ years, Mark Henne has project experience with nearly every physical medium (soil, water, groundwater, air, building materials) and contaminant, and has worked on projects for all client groups:
Services
- Phase I and Phase II Environmental Site Assessments
- Site remediation programs
- General hydrogeology environmental studies
- Water supply studies and design of water wells
- Vapor intrusion
- Indoor air quality assessment services
- ISO 14001 studies and assistance in certification
- Environmental risk management
- Workplace environmental studies and remediation
- Litigation Support and Expert Witness Services
Soil, Groundwater, Air and Building Contaminants
- Gasoline, diesel, heating oil and other petroleum products
- Solvents and other chlorinated hydrocarbon compounds
- Heavy metals (including, but not limited to mercury, lead, arsenic and chromium)
- Fertilizers
- Pesticides and herbicides
- PCBs
- Road salt and oil well brine
- Organic waste
- Radionuclides
- Asbestos
- Lead paint
- Mold
Clients
- Government – Federal, state, county and local
- Attorneys and court officials
- Lending institutions
- Retailers – individual proprietors to multi-location big-box retailers
- Manufacturers – Heavy equipment, auto, auto parts, paint, and many others
- Automobile dealers and part suppliers
- Petroleum companies, fuel suppliers, and service station owners
- Dry cleaning establishments
- Real estate brokers and developers, and property managers
- Waste management companies
- Automobile and other waste recycling facilities
- Education providers – public and private
- Healthcare providers and hospitals
- Charitable, service and other non-profit organizations
- Land trust organizations
- Religious institutions
- Farmers and agricultural enterprises
- Recreational service providers
- Individual landowners and purchasers of property
Litigation Support and Expert Witness Experience
- Environmental consultant malpractice
- Defense of potentially responsible parties (PRPs) relating to Superfund site
- Migration of contaminants onto adjoining property
- Contamination attributed to negligence during fuel system maintenance
- Liability of environmental consultant for death of driller during environmental study
- Environmental impact of concentrated animal feeding operation (CAFO)
- Migration of natural gas along a utility corridor and resulting explosion
- Subsidence created by dewatering during utility construction
- Mold attributed to negligent building construction
- Receivership of landfill properties
Posts Regarding Hydrogeology and Environmental Consulting
- A Guide for Attorneys, Hydrogeologists, and Environmental Consultants in Managing the Expert Witness Relationship
- Tips for Environmental Expert Witnesses
- What is the Standard of Care for Environmental Consultants?
- Can “General Conformance with ASTM E 1527” Clauses in Phase I ESA Contracts and Reports Help an Environmental Consultant Avoid Liability?
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