Melissa Asher, P.E.

Melissa Asher is a Principal Environmental Engineer based in Washington State with more than 10 years of professional experience focused on contaminated site assessment, remediation, and regulatory compliance. She specializes in helping her clients perform site assessments and develop closure strategies, as well as design, implement, and optimize soil and groundwater remediation projects at their complex sites.

Melissa's key practice experience includes program management of several challenging groundwater remediation projects where she has served as the engineer of record for numerous remedial design projects, and has supported her clients' environmental due diligence. She is experienced in site strategy development, feasibility study evaluations, engineering design for remediation, site investigation and characterization, vapor intrusion assessments, litigation technical support, engineering cost estimates, cost allocation modeling, and regulatory communication and negotiations. Melissa has assisted clients who are regulated under a variety of frameworks, including CERCLA and state-led voluntary cleanup and consent decree programs across the Western Region, including Alaska, Washington, Oregon, California, and Arizona. Her work has utilized practical approaches that consider both traditional and innovative methods to provide cost-effective solutions for environmental investigations and remediation.

To advance the state of the practice, Melissa continues to research and publish information related to in situ biological reduction of 1,2,3-trichloropropane, an emerging contaminant with part-per-trillion regulatory levels.  She is an active member of the Seattle's Women in Environment and Northwest Environmental Business Council.

Contact Melissa at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1-206-496-1449.

Career Summary: Melissa Asher, P.E.

  • Specialties: Remediation Strategy; Development; Remediation Program Management; Site Assessments; Feasibility Studies; Soil and Groundwater Remediation
  • Practice Areas: Contaminated Site Assessment and Cleanup
  • Disciplines: Civil Engineering, Environmental Engineering
  • Education: M.S., Environmental Engineering, University of California, Berkeley, 2006; B.S., Civil Engineering, University of Notre Dame, Cum Laude, 2005
  • Registration: California Civil Engineer (PE) Number C73604; Washington Civil Engineer (PE) Number 52884; Colorado Civil Engineer (PE) Number 51060; Idaho Civil Engineer (PE) Number 16781

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Geosyntec Consultants
Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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