Leach Engineering


36 Eastern Ave Suite 6
St. Johnsbury, Vermont 05819
(802) 748-9009

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Leach Engineering Consultants is a professional services firm providing Civil and Environmental consulting engineering services to clients in the municipal, commercial and private sectors. Our office is located in the Connecticut River Valley and the beautiful Northeast Kingdom of Vermont. Services focus on the planning, design and construction of municipal water, wastewater and stormwater systems and treatment, land development and site engineering. The owner of the firm, Gary A. Leach, P.E., has more than 30 years of professional design and consulting experience, and employs a staff of highly qualified and experienced engineers. Projects are primarily municipal located in Vermont, New Hampshire and Maine.

Leach Engineering offers quality professional engineering with great value. Our design approach utilizes standard practices in strict adherence to most recent Federal and State regulatory requirements, while providing creative and innovative engineering which has proved invaluable to our clients. This firm has developed long term relationships with clients by providing high quality service.

The following list of professional services demonstrates the expertise of the technical staff:


Feasibility Studies & Facility Planning
Infiltration/Inflow Studies
Wastewater Collection Systems
Pumping Stations               
Sewer System Rehabilitation
Municipal Wastewater Treatment Facilities
Land Application of Wastewater & Sludge
Excess Flow Treatment Alternatives
Sludge Treatment, Dewatering & Handling
Combined Sewer Overflow Abatement
State/Local Permit Process Assistance


Feasibility Studies
Pilot Plant Studies
Distribution Design & Analysis
Source Studies & Evaluations
Storage Analysis & Design
Wellhead Protection Plans
Watershed Protection Plans
Water Treatment Facility Design
Corrosion Control Evaluation
Well System Designs
Fire Flow Analysis
State Permit Process


Roadway/Street Systems Design
Roadway Rehabilitation
Storm Water Drainage & Detention Design
Entrance Designs


Earthwork Calculations and Site Design
Site Selection Evaluations
Erosion Control Plans
Residential Subdivision Development
Grading/Utility Designs


Cost Estimating
Bidding Process Assistance
Construction Observation Services
Shop Drawing Review       
Construction Administration Services


Assistance with Planning Board Meetings
Corps of Engineers Permit Applications
Grant/Loan Funding Applications
Comprehensive Plans
Act 250 Applications



An employee of our firm would have potential for professional growth in an informal atmosphere working with experienced staff, and the quality of life only the Northeast Kingdom can offer.  We offer competitive salary and benefits.  Submit letter of interest and resume to:  contact@leachengineeringvt.com.

Project Engineers

Duties include: development of construction plans and specifications, preparation of engineering reports, evaluation of new and existing facilities, development of project scope and both engineering and construction cost estimates, working with other design team members (structural, electrical and mechanical), communication with clients, operators and regulators, and management of multiple projects.

Construction Resident Engineers

Duties include:  observing construction and administering owner’s contract for projects including pipe lines, treatment plants, storage tanks and site development.  Excellent communication and organizational skills necessary.

Entry Level Engineers

A concentration and experience with water and wastewater, site engineering and construction is desired.  Duties include: working under the instruction of the Project Engineer and other team members including developing plan documents, specifications, reports, design basis, etc.