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and the health of other organisms in the environment. He received his doctorate in 1982 form the
Oklahoma State University Department of Physiological Sciences where his research interest was in
the effects of heavy metals and complex organic chemicals on epithelial tissues in several animal
models. In subsequent years he developed a practical expertise in the toxicity of petroleum
hydrocarbons, chlorinated industrial chemicals and heavy metals released into the environment.
Dr. Zinn has investigated potential and actual exposure of human and environmental receptors to
these materials during exploration,production, transportation, refining, and distribution of crude oil
and petroleum products as well as industrial processes. Dr. Zinn is a Certified Industrial
Environmental Toxicologist
sites, environmental releases of crude oil and refined petroleum products where human exposure
was being evaluated. He has provided support in the form of field investigation, courtroom
testimony, State agency hearings, and US EPA settlement proceedings.
interpretation to identify the source of environmental contaminants as well as the approximate
amount of time that contaminants were released. This technique has proven valuable to the
Petroleum Industry, government regulators, and commercial distributors as a tool to establish
responsible parties when multiple contaminant sources exist. Zinn has conducted forensic analyses
for major oil companies, state regulatory agencies, and commercial entities since 2000.
regulations through direct consulting and compliance audits of client facilities. Compliance
consulting clients have included:
Laboratories
Construction Companies
Foundries
Semiconductor Development Facilities
Materials Research and Production Plants
Small to Medium Manufacturing Companies
Retail Petroleum Marketers
Local Government Entities
environmental receptors presented as the potential increase of non-cancer and carcinogenic affects
on an exposed population. Zinn follows the primary protocols and models from the US EPA Risk
Assessment Guidance for Superfund and other agencies to conduct Risk Assessments. Zinn has
performed Risk Assessments since 1997.
Site Assessments (ESA) sufficient to establish an innocent land owner position for purchasers of real
property which may have existing adverse environmental conditions at the time of purchase. Zinn
performs Phase I ESA's (ASTM E1527) and Phase II ESA's (ASTM 1903). Phase I Assessments
review existing environmental information about a property, Phase II Assessments collect new data
from soil and water samples analyzed in the laboratory. This product is not only used in the transfer
of real property, adequately conducted Phase I and Phase II ESA's are a required first step for
Brownfield Site Characterizations and State Voluntary Cleanup Programs. Zinn has performed
Environmental Site Assessment (previously Audits) since the late 1980's for heavy to light industry,
commercial facilities, oil & gas properties, and agricultural tracts.
be evaluated for future use and redevelopment using the Brownfield Site Characterization. Initiated
by the limited findings of Phase I and Phase II ESA's the Brownfield procedure requires the collection
of sufficient new data to complete a Risk Assessment and Remediation Plan for the property. Since
2000 Zinn & Associates has completed Brownfield Projects at a 1920's era Steel Plant and a 1930's
vintage Ferrous and Non-ferrous Metal Foundry. Several potential Brownfield sites were completed
as Voluntary Cleanup Projects during that same time frame.