Mr. Ridosh has more than 30 years of experience in project management,
environmental studies and laboratory analysis work.  He has served as a Certified
Industrial Hygienist on numerous projects including remediation, indoor air quality
assessments, personnel exposure monitoring hazardous waste management, the
handling and disposal of liquid and solid hazardous wastes, and the development
and implementation of OSHA safety training programs. He has served as both
Health and Safety Officer and Quality Control Officer on many government
projects for the Army, Air Force, Navy, EPA and Corps of engineers.  Specific
project experience includes:
My Photo Album
Michael Ridosh, CIH, REA, Senior Engineer
MBA, 1981, California Luthern University, B.S. in Chemistry, California State University Northridge. Mr. Ridosh hold
professional certifications and licenses as Certified Industrial Hygienist (CIH), and Environmental Assessor (REA).
Managing a $1.6 million UST removal and remediation project for the U.S. Air Force at March AFB.  At
this IRP site, twenty UST facilities were removed, abandoned, or remediated.

        Serving as the Safety Manager for the remediation of 30 Army National Guard indoor firing
ranges.  Lead contaminated sand was containerized, disposed, and the structures were HEPA
        Managing a $1.1 million Underground Tank removal and replacement project for the Los Angeles
County Department of Public Works.  Supervised the cleanup and removal of several hundred tons of
metals contaminated soil at Sharpe Army Depot.  Managed a project involving the removal of two
pesticide waste containment vaults at China Lake Naval Weapons Station.  Other US Navy projects
include: fuel pipeline abandonment at Lemoore NAS, contaminated soil removal at Rough and Ready
Island, tank cleaning at Point Molate, slope erosion stabilization at Point Loma.
        Laboratory and Quality Assurance Manager responsible for the development and management of
a California State approved water testing laboratory.  Managed and performed analyses for water,
wastewater, and metal finishing solutions.  Interfaced with federal, state, and local agencies on testing
methods and discharge regulations.  Participated in the development of methods for the removal of
heavy metals from wastewaters.
        Preparing an Injury and Illness Prevention Plan for a major petroleum company.  The plan
included site visits and audits, a Job Hazard Assessment, and development of the Code of Safe
Practices for activities such as forklift, confined space, lockout/tagout, protective clothing, vehicle
operation, and training requirements.
        Managing a $2,000,000 task order contract with the Los Angeles County Transportation
Commission for the investigation, identification, removal and proper disposal of hazardous substances
encountered during the construction of the Los Angeles Metro Rail Project.
        Serving as the Technical Assistance Team Leader for U.S. EPA, Region IX, which involved
managing a team of professionals that supported the U.S. EPA in emergency response, assessment,
and remediation at over 100 hazardous waste sites.  Projects included removal of pesticides and PCB
contamination from 39 sites in the South Pacific, removal of 2,700 drums of heavy metal and acid
solutions, and removal of 1,700 drums of acid sludge.
        Supervising all aspects of the implementation of a new treatment technology for the remediation
of contaminated soils.  Work included permit applications, treatment chemistry, acceptance into the U.
S. EPA SITE program, evaluation of the quality and effectiveness, client and agency relations, and health
and safety issues.  The remedial technology consisted of a mechanical system for the in-situ treatment
of contaminated soil by air and steam stripping or by injection and mixing of treatment reagents into
the soil.
        Serving as project manager for the development and implementation of hazardous waste health
and safety training courses for: Lawrence Livermore National Laboratory, (which engages in work
related to nuclear materials with the Department of Energy); Cass Construction; and a major oil refinery
in Bakersfield.

        Performing oversight for EPA Region 9 during the remediation of the One Market Plaza in San
Francisco.  Monitored the sampling and remedition for quality and effectiveness.  This high-rise building
was contaminated with PCB and dioxins after a fire in a transformer vault.  The cleanup took one year
and cost $27 million.
        Directing remediation of a 2-acre site contaminated with gasoline and diesel fuels.  Innovative in-
situ treatment with chemical oxidation and thermal stripping were utilized.  Site was closed and
developed into an industrial park.
        Presenting or assisting in hazardous materials safety courses that were given to the U.S. Forest
Service, Arizona Highway Patrol, California Water Resources Board, U.C. Davis, U.C. Berkeley, U.S.
Navy, Converse Consultants, Los Angeles School District, Groundwater Technology, Pacific Valve, Lovco
Construction, Toxic Treatments, and many others.
        Laboratory Manager for a major environmental engineering firm with locations in Ventura and
Pasadena, California.  These laboratories performed complete chemical analysis of water and
environmental samples for sanitary districts, and industrial clients, including oil refineries.  Major project
work involved refinery effluent testing, ocean discharge monitoring, hazardous waste evaluation, and
toxicity bioassay testing.  Responsible for all testing quality control, reporting, and client relations.


Environmental Impact on an Oilfield Waste Disposal Facility, 1981.
A Case Study of Land Application of Oilfield Wastes, 1981.
Superfund Removal Actions in Remote Areas of the World, 1984.
In Situ Treatment of Pesticide Contaminated Soils, 1985.
In Situ Treatment Process for Removal of Volatile Hydrocarbons from Soils:  Results of Prototype Test,
In Situ Treatment Process for Removal of Volatile Hydrocarbons from Soil, 1988.
Lime Application to Soil Using the Detoxifier, 1988.
A New Technology for the Characterization of Sites Contaminated by Volatile Organic Compounds, 1988.

Mentor, EPA IAQ “Tools for Schools”, American Lung Association
Instructor, California Compliance School
Instructor, UCLA Extension, Site Investigation and Remediation Certificate Program
Instructor, OSHA 40 hour Hazardous Waste Site Worker 1910.120