David Lehnus, P.G., L.E.P.

Experience

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  HRP Associates, Inc.

  Jan 1998 - Jan 2001

  Project Geologist

  Completed office and field aspects of conducting Phase I/II/III Environmental Site Assessments that included the installation of soil borings, monitoring wells, conducting soil gas surveys, and conducting groundwater monitoring to EPA and state guidelines. Provided services as an on-site health and safety officer on a State of Connecticut Department of Transportation construction site.

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  Loureiro Engineering Associates, Inc.

  Jan 2001 - Jan 2008

  Senior Project Geologist

  Management of investigation and remediation projects for numerous industrial, commercial, and residential clients. Specialization in aerospace industry. Planned, coordinated, and oversaw environmental and building material sampling plans, including use of TSCA requirements for PCB contamination, for demolition of buildings an industrial facility in order to advise for proper disposal of media in accordance with state and federal regulations. Served as part of an emergency response team to address the release of jet fuel into the Connecticut River at an industrial facility. Generated a groundwater model of the Connecticut River to assess the potential for impact to the river from contamination emanating from a landfill on the river bank.Participated in a taskforce to assess company media sampling standard operating procedures (SOPs) and rewrite as necessary according to prevailing state and federal guidelines. Trained entry-level staff on proper completion of Phase I, Phase II, and Phase III environmental site assessments and proper protocols for completion of field investigation work associated with subsurface investigations. Show less

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  Triton Environmental

  Jan 2003 - Jan 2005

  Project Manager

  Provided oversight and management of a wide range of projects, with coordination of field staff, preparation of proposals, management of budgets, preparation of invoices, preparation of site assessment reports, and regulatory guidance for clients. Investigation/remediation former CERCLA drum reconditioning converted to residentialHigh profile / sensitive receptor soil contamination at school sites

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  Clean Closure, LLC

  Jan 2011 - Aug 2015

  Principal

  Technical support for investigation and remedial action plan for dry cleaner release to be conducted with DTSC oversight (application to Alameda County elevated to DTSC). Geologist/Quality Officer for the installation of a $30M thermal remediation system at a federal Superfund site. Ensured that the treatment system was constructed in accordance with EPA-approved work plans and state and federal regulations. Also ensured the proper collection of environmental samples and the completion of reports. Severed as the geology expert for the site. Licensed Environmental Professional of Record (verifying closure on behalf of the state of Connecticut) for remediation and verification of a former oil manufacturing facility. Project Manager for the completion of environmental assessments for the numerous industrial, commercial, and residential properties and provided guidance for regulatory issues. Show less

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  Partner Engineering & Science, Inc.

  Aug 2015 - now

  Project Manager

  Technical Site Lead / Project Manager for numerous regulatory investigation/clean up projects including projects under the Department of Toxic Substances Control (DTSC), Los Angeles County Fire Authority (LACFA), Los Angeles Regional Water Quality Control Board (LARWQCB), and Santa Ana Regional Water Quality Control Board (SARQCB).Client Contact for at least fifteen active remediation projects with annual value in the $500,000 to $1.5M range; preparing proposals/cost estimates, work plans with applicable sampling and quality assurance plans, and investigation and remediation summary reports. Staff Training for entry and mid-level geologists on the Site Mitigation team in both the Santa Ana and Torrance offices, with oversight on project work. Technical support for the nationwide due diligence team to advise on mitigation steps and create Remedial Cost Estimates based on limited information ranging from hypothetical scenarios to including the evaluation of limited investigation data. Show less