Meet Our Team

Experienced and professional, our team can handle projects of all sizes. We pride ourselves on conducting business with honesty and integrity.

Tom Corontzos, P.E.

Tom is a professional engineer with more than 20 years of experience in planning, coordinating, and managing civil and environmental engineering projects. He has extensive experience with projects governed by provisions of the Resource Conservation and Recovery Act (RCRA) and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) and has successfully completed several remedial investigations, feasibility studies, and remedial designs. He coordinates the efforts of task managers and technical experts in multiple disciplines to consistently and successfully meet project objectives.


  • Project management for regulatory compliance and closure of RCRA facilities.
  • Regulatory compliance and closure of petroleum- and PCB-contaminated sites.
  • Preliminary investigation, pilot testing, and design of remedial action programs.
  • Plans, specifications, and bidding documents for civil and environmental projects.
  • Construction coordination/oversight for civil and environmental projects.
  • Preparation of operation and maintenance manuals.
  • Stormwater evaluations, erosion control, and grading plans for residential projects


Registered Civil Engineer:  California, Texas, Wyoming

Jeff Morris, P.E.

Jeff has over 30 years of experience specializing in hazardous waste site investigations and remediation and has managed remedial investigations, feasibility studies, and site remediation projects for numerous hazardous waste sites in the Western United States. He has demonstrated his outstanding leadership capabilities directing large, multi-task environmental programs. He has excellent communication skills with clients and regulatory agencies and his responsiveness to short notice requests has been commended. His professional philosophy is to use a streamlined approach whenever possible to create the most effective use of project time and project costs while meeting project goals.


  • Experienced in all phases of site remediation from initial assessment to site closure.
  • Managed complex environmental programs for large multi-site facilities.
  • Experienced in coordinating site cleanup with development, including construction oversight and preparation of specifications for construction projects in contaminated media.
  • Thorough knowledge of federal and state regulations governing the cleanup and re-use of contaminated sites.
  • Preparation of improvement plans, grading plans, erosion control plans, and Stormwater Pollution Prevention Plans for subdivisions.


Registered Civil Engineer:  California

Linda Reckentine P.G., C.HG. 

Linda is a registered professional geologist and certified hydrogeologist with over 28 years of experience in site assessment (including groundwater sampling, analysis, and reporting), regulatory compliance, remediation design, construction management, and environmental geology/groundwater hydrology.  Her environmental consulting background includes over 23 years of project management experience.  She has successfully worked with numerous local, state, and federal regulatory agencies across the country including negotiations of clean-up standards, obtaining permits, and implementing consent orders at various types and sizes of projects.    She has conducted numerous public meetings and dealt with local land owners and impacted third parties.  She has served as the project manager for several refinery demolition/waste stabilization projects at shutdown petroleum refineries and has extensive hands-on experience with numerous soil and groundwater remediation techniques, including hydrocarbon recovery, air sparging, pump and treat, bioremediation, soil vapor extraction, bioventing, and soil stabilization.  Additionally, she is an experienced field geologist, with expertise in a variety of investigative techniques in many diverse and complex subsurface conditions.


  • Groundwater and soil quality assessment, monitoring, pilot testing, and remediation (design, installation, and operations) at a variety of project sites types and sizes.
  • Preparation of Phase I and II Environmental Audits.
  • Design and manage Quality Assurance/Quality Control Programs
  • Regulatory agency coordination, compliance, and negotiations including extensive experience with the DTSC, various Water Boards across the State, and a variety of city and county agencies in California.
  • Evaluation of remedial alternatives, including present worth analyses.
  • Preparation of bid packages and contractor evaluation and selection.
  • Management and supervision of field installations and O&M activities.
  • Emergency Response supervision and implementation.
  • Project management for regulatory compliance and closure of RCRA facilities.
  • Preparation of Spill Prevention Countermeasures and Control (SPCC) Plans.


Registered Professional Geologist:  California, Washington, Arizona, Wyoming
Registered Certified Hydrogeologist:  California

Noël Bush P.G., C.HG. 

Noel is a registered professional geologist and certified hydrogeologist in California.  She has 20 years of experience in the environmental field conducting site assessments, remediation implementation, and regulatory closure of several sites in the North State. She has served as a project manager for several complex projects through assessment, remediation and closure. Ms. Bush has an excellent working relationship with local agencies including the Regional Water Quality Control Board, Central Valley Region and Shasta County Department of Resources, Environmental Health Division.


  • Evaluation of fate and transport of contaminants in the subsurface.
  • Groundwater and soil assessment, monitoring, and remediation.
  • Evaluation of natural attenuation of contaminants for remediation and/or closure purposes.
  • Regulatory agency coordination, compliance, and negotiations.


Registered Professional Geologist: California
Registered Certified Hydrogeologist:  California

Joshua Krohn, B.A., B.S.

Joshua is an Associate Environmental Engineer with 5 years of experience. He has prepared technical reports for a variety of regulatory and governing agencies. Joshua has multidisciplinary experience in project management, permitting, compliance, and reporting. His skills include interpersonal communication and negotiation, proficiency with a variety of essential software programs, technical writing, strategic planning and engineering analysis.


  • Experienced with technical writing.
  • Proficient with programming languages and 3D CAD software.
  • Skilled in scheduling, engineering analysis, and strategic planning.
  • Project management and environmental permit compliance.
  • Air emissions quantification, calculations, recordkeeping, and reporting.
  • Groundwater monitoring, analysis, and reporting.


Sydney Waddell, B.S.

Sydney is an environmental scientist with knowledge gathered primarily from field work in Humboldt County, focused on ecological restoration practices in many environments. She has experience working with the California Native Plant Society on invasive species management and forest restoration, which included soil sampling, leading restoration activities, and generating technical reports.


  • Skilled in a variety of Microsoft and Esri software.
  • Groundwater monitoring, analysis, and reporting.
  • Concentration in ecological restoration and remediation.
  • Experience with technical writing.


Roberta Muck, B.A.

Roberta provides administrative services to projects and clients. She prepares presentations, spreadsheets, tables, and reports in support of project technical documents, marketing, and business development functions. She is responsible for updating corporate documents to be consistent with company policies, and business standards. Roberta supports project teams in the planning, preparation, and execution of field tasks, and the import and management of laboratory analytical data.


  • Proficient in Microsoft Office products.
  • Develops and utilizes tools for tracking project and company related information.
  • Excellent organizational skills and attention to detail.
  • Highly efficient and focused work approaches.
  • Strong communication skills with clients, subcontractors, agencies and the public.


Contact Us

2510 Old Eureka Way Redding, CA 96001