Academic Credentials
  • B.S., Chemical Engineering, University of Washington, 1992
Licenses & Certifications
  • Professional Engineer, Indiana, #PE12300069
  • Professional Engineer, Montana, #PEL-PE-LIC-19838
  • Professional Engineer Chemical, Oregon, #80309PE
  • Professional Engineer Chemical, Washington, #36171
  • 40-Hour Hazardous Waste Operation and Emergency Response Certification (HAZWOPER)

Ms. Kleven has 30 years of experience with projects involving multi-party site cleanup and cost allocation, natural resource damage assessment (NRDA), complex site investigation and historical research, due diligence, standard of care, treatability study design and implementation, remediation of soil, groundwater and surface water utilizing innovative approaches, and sustainability evaluation of waste treatment and remediation. She has provided expert testimony on handling and management of hazardous waste and other hazardous materials.  

Ms. Kleven's expertise in regulatory compliance makes her a valuable strategic advisor to clients with serious environmental issues, violations, and enforcement proceedings that require timely resolution. She has succeeded in resolving issues arising from unexpected environmental and other conditions for large construction companies on major redevelopment projects involving multiple parties and disciplines. She has also served on confidential expert panels to evaluate and improve investigation and remediation strategies for complex sites across the U.S.

Ms. Kleven is also an accomplished project manager with extensive experience as an owner's representative and managing complex, multi-disciplinary, and high profile projects on time and within budget.

Ms. Kleven has expertise in many regulatory programs, including NPDES, RCRA, CERCLA, MTCA, and state and regional environmental and health programs. Her projects have included Superfund sites with environmental analysis supporting cost allocation for both upland and in-water/nearshore areas (e.g., rivers and waterways). Her focus is complex environmental analysis, including sites situated in complex hydrogeologic areas (e.g., fractured bedrock), residential areas, and ecologically sensitive areas.

Ms. Kleven advises a diverse clientele that has included other environmental engineering companies, construction companies, oil and gas companies, chemical companies, materials manufacturing companies (e.g., cement, aluminum, alloys), coal and sand mines, coal-fired power plants, computer and information technology companies, scientific research and technology companies, analytical laboratories, liquid waste facilities, industrial landfills, municipal solid waste landfills, and other waste management facilities.

Ms. Kleven has worked on projects involving impacts from a variety of contaminants, including petroleum hydrocarbons, PAHs, PCBs, pesticides, herbicides (e.g., dinoseb), insecticides, peroxide, cement kiln dust (CKD), smelter slag (arsenic, lead), resins, aluminum reduction waste (e.g., dross, spent potliner), fly ash, scrubber slurry, radionuclides (e.g., uranium), chlorinated solvents, ethanol, siloxanes, metals, and minerals/nutrients. A focus of her work has been developing baseline conditions for naturally occurring and area-wide contaminants (e.g., arsenic, iron and manganese). Select example project experience is summarized below.