Lynn D. Green
C.E.G., R.G., L.E.G., L.G.
Principal Geologist/Engineering Geologist/Project Manager
Lynn has almost thirty years of experience as a Project Manager/Team Leader in the natural resources and environmental areas and is a Principal at EVREN Northwest. He’s responsible for project management, sampling and analytical protocols, analytical and numerical modeling of environmental systems (air, subsurface soil, surface water, soil gas, ground water and cross-media transport), data validation, evaluation and analysis, monitoring and evaluation of environmental systems. He also provides expertise in baseline deterministic and comparative risk assessments and environmental impact statements.
Lynn has worked extensively with diverse types of environmental issues, including:
Environmental assessment, investigation and remediation; storm water assessment, control, mitigation and monitoring
Ground water resource utilization
Risk assessment and Communication
Environmental modeling (including ground water flow, surface water hydrology and hydraulics, pollution dispersion, fate and transport, comparative risk analysis, cross-media transport, and statistical data analysis).
Aggregate resources and geologic reconnaissance
Lynn’s projects include Phase I and Phase II Environmental Site Assessments, Remedial Investigations, remediation and assessment or risk for many types of facilities, including: hospitals, factories, petroleum-distributions facilities, industrial warehouses, airport facilities, industrial metal scrapping operations, hotels and apartment complexes, lumber mills, pulp mills, agricultural properties, dry cleaners, tanning facility, mine facilities, and numerous industrial properties and service stations.
Lynn’s geotechnical and engineering experience includes landslide mitigation and stabilization, various aggregate resource studies, geologic mapping, and characterization of soil and rock mechanical properties in the field and in the laboratory. Lynn is also experienced in the area of slope stability analysis and bio-engineering principles, as well as stream bank stabilization and watershed restoration.
Prior to forming EVREN Northwest, Lynn worked for several consulting engineering firms (Keystone Engineering, Chester Engineering, NCASI) and for the Oregon Department of Environmental Quality (ODEQ). While working for the ODEQ Lynn’s primary responsibilities were in the Cleanup and Water Quality programs, specifically in modeling multi-media risk and surface water flow. Lynn has also served as Program Manager with analytical laboratories, developing and implementing laboratory methods for complex analysis and agricultural constituents. He is experienced in a wide variety of environmental sampling protocol including sampling methodology, sample analysis, data quality assurance and validation, and statistical analysis. He is experienced in various State, EPA, ASTM, FDA and USDA analytical and sampling methodologies and has had extensive experience in field data acquisition.
Relevant Project Experience
Human Health and Ecological Risk Assessments
Galena, Alaska. On behalf of the State of Alaska, reviewed both human health and ecological risk assessment that were prepared to address residual risk at a former air force base. The work products were prepared in accordance with EPA guidance for risk assessments at Superfund Sites, and the reviews were conducted for the State of Alaska Department of Conservation.
Part of a team conducting a risk analysis for a city in Oregon to support development of a recreational city park on a lake. The analysis included review of historical uses of the property, data QA/QC and statistical analysis, a modified risk assessment scenario development, and calculation of potential risks to adjacent residents and park users. The risk analysis was used by the city to support proposed park development. Constituents of concern were dieldrin, chlordane, heptachlor epoxide, endosulfan I, endosulfan II and endosulfan sulfate.
A ranger station located in a National Forest area in Oregon. The scope of work included data QA/QC and statistical analysis, standard four-part risk assessment, hot spot evaluation, uncertainty analysis, and development of preliminary remediation goals. The primary constituents of concern were petroleum hydrocarbons, BTEX, and volatile aromatic hydrocarbons (including TCE and PCE). An ecological risk assessment was provided after supervising and reviewing the ecological data collected for the project.
Human health risk assessment for an industrial plastics manufacturer located in Oregon. The scope of work for this project included data QA/QC and risk analysis referencing Oregon's Risk-Based Decision Making for Petroleum Contaminated Sites guidance document, and in development of site-specific risk-based concentrations. The primary constituents of concern were petroleum hydrocarbons and volatile aromatic petroleum-hydrocarbons (BTEX). Also assisted in conducting an ecological screening assessment as part of project regulatory closure.
Former Frontier Leather Superfund Site and Former Ken Foster Farm facility, Sherwood, Oregon. Risk Assessor and principal field supervisor for preparation of State-approved work plans and assessment of residual risk following remedial activities. Assessment include hexavalent chromium and the potential for propagation to wetland areas, and included development of remediation/mitigation plans to support both regulatory closure of the facility and redevelopment of the property.
Former Construction Debris Landfills in Oregon and Washington. Conducted both Human Health and Ecological Risk Assessments for several facilities in Oregon and Washington. Assessment include methane gas and the potential for propagation and included development of remediation/mitigation plans and long-term monitoring to support regulatory closure.
Designed, oversaw the installation of, and managed the performance monitoring of several sub-slab depressurization systems to mitigate the potential for intrusion of subsurface vapors into indoor air space. These systems were installed at former service station facility, former and current dry-cleaning facilities, and industrial facilities throughout Oregon, Washington and Montana.
Designed, oversaw the installation of, and managed the performance monitoring of several soil vapor extraction systems to remediate subsurface soil contamination. These systems were installed at former service station facility, former and current dry-cleaning facilities, and industrial facilities throughout Oregon.
Assisted with the design, oversaw the implementation and performance monitoring of several ground-water remediation systems using in-situ bioremediation technologies. These technologies included both aerobic (using oxygen) and anerobic (such as reductive dechlorination) processes at former service station facilities, former and current dry-cleaning facilities, and industrial facilities throughout Oregon.
Used a variety of numerical environmental models (such as Modflow, Mocflow, ASM, UAM, Hot Spot) and analytical models for particle fate and transport analysis, assisting in several key environmental projects. Assisted in the development of a computer-based model for Oregon Department of Environmental Quality to be used for identifying the cross media impacts of pollutants and determining relative risks.
Conducted numerous Site Investigations assessing environmental impacts to both soil and groundwater.
Conducted a ground water investigation at a former industrial facility to address the historical release of gasoline, diesel, pentachlorophenol, and polychlorinated biphenyls released from several underground storage tanks abandoned on-site. Supervised all aquifer characterization activities.
Helped conduct on-site investigation into historical releases of petroleum products, heavy metals, and PCBs, and reviewed the human health and ecological assessments of risk for a car-crushing site. Complicating this project were complex historical activities including two periods of anthropogenic fill activities, one by the Municipality, utilizing materials from their former incinerator. A further complication in this investigation was the complex hydrogeologic nature of the area due to anthropogenic surface water controls, tidal influences, and river stages.
Performing numerous phase I environmental site assessments on real property in Oregon, California, Idaho, Nevada, Alaska, and Washington to the standards of ASTM. Certain projects have included litigation support.
Coordinated and performed a large-scale field investigation to address potential impacts to the City of Corvallis’ drinking water source, and mapped the geologic and hydrogeologic features of the study area. Collected numerous water quality samples and performed various field and laboratory analyses. Interpreted results of the investigation in a final report and presented to the City of Corvallis and Oregon State University.
Performed a geologic assessment at an Indian reservation in Washington. The investigation focused on geologic mapping, quarry recommendations, rock specification analysis, geophysical analysis, and site surveying with transit and GPS.
Determined the physical feasibility of a planned development. The investigation included mapping and characterization of geology, soils, erosion characteristics of the area, surface runoff, and slope failures. A geotechnical investigation included exploratory boring and laboratory testing of subsurface materials.
Performed work on a site located in a wellhead protection area in Washington. The proposed site usage was to distribute petroleum products. A risk analysis was required to demonstrate proposed site usage, site controls, management practices, and hydrogeologic characteristics of the localized area within the wellhead-delineated zone would not adversely impact the regional aquifers. Assisted with hydrogeologic characterization and recommended site controls and best management practices for the type of facility and its location in a wellhead-protected area.
Principal investigator and author of a Storm Water Management Plan for a facility with sensitive discharge concerns along the Columbia Slough in Portland, Oregon. This plan was reviewed by both the State of Oregon Department of Environmental Quality and the City of Portland Bureau of Environmental Services and was received with very positive comments.
Project manager responsible for the development of a Storm Water Pollution Prevention Plan for an industrial lumberyard that was both economical and would meet Washington Department of Ecology’s requirements.
Principal author responsible for Best Management Practices to be utilized in a North Portland facility’s Storm Water Pollution Control Plan to improve the quality of water being discharged to a 303D listed stream.
Project manager responsible for the development of numerous Storm Water Injection Management Plans and for registering underground injection control devices (UICs) for storm water disposal for numerous facilities in Oregon, Washington, Idaho and Montana.
Certifications and Licenses
Certified Engineering Geologist, State of Oregon
Registered Geologist, State of Oregon
Certified Water Rights Examiner, Oregon
Licensed Engineering Geologist, State of Washington
Licensed Geologist, State of Washington
Professional Geologist, State of Idaho
Licensed Soil Matrix Supervisor, State of Oregon
Licensed Heating Oil Tank Supervisor, State of Oregon
Licensed Decommissioning Supervisor, States of Oregon and Washington
Licensed Site Assessor, State of Washington
Certified Indoor Environmentalist
Certified for Radon Measurement and Mitigation
State of Washington Certified Low Impact Development Storm Water Designer
State of Washington Certified for Low Impact Development Storm Water Long-Term Operations and Maintenance
Certified Erosion and Sediment Control Lead
Certificate of Training for use of XRF analyzer
Training
Wildland Hydrology, Level IV, River Morphology Assessment, Monitoring and Restoration, 2004
University of Wisconsin-Madison, College of Engineering, Slope Stability and Landslides, 2000
8-Hr HazWopper and Supervisor Refresher (ongoing, yearly)
University of Wisconsin-Madison, College of Engineering, Soil BioEngineering, 2000
Oregon Department of Environmental Quality, LNAPL Assessment, Monitoring and Remediation
Oregon Department of Environmental Quality, Vapor Intrusion, 2008
Oregon Department of Environmental Quality, In-Situ Remediation
ITRC Training for ModFlow.
Northern Illinois University, Accounting for Nondetects and Difficult Results in Environmental Data.
Midwest Geosciences, Ground Water and Environmental Media Sampling
ITRC Training for Ground Water Statistics
Midwest Geosciences, No-Purge Ground Water Sampling
Midwest Geosciences, Hydrology of Aquitards and Low-Permeability Materials
Midwest Geosciences, Principles of Dewatering
Northern Illinois University, Horizontal Well Hydraulics
Northern Illinois University, Successful Slug Testing: Formation of Low Hydraulic Conductivity, High, and Everything in Between
EDUCATION
B.S., Chemistry, Portland State University
M.S., Physical Chemistry, University of Oregon
M.S., Geotechnics, Missouri University of Science and Technology (formerly Missouri School of Mines)
Ph.D., Environmental Engineering, Kennedy Western University
Graduate Studies:
Portland State University
University of Wisconsin - Madison
University of Missouri Science and Technology – Hydrogeology, Geologic Engineering, and Engineering Geology