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Founded in 1997, Trinity Engineering & Technical Services, LLC provides Civil Engineering and Environmental Engineering in Vermont, and Massachusetts. We are a full service civil and environmental engineering firm able to handle all your site development and environmental permitting needs.

Our services include wastewater system design, septic system design, water supply design, subdivisions, wetland permits, Act 250 permitting in VT, Title 5 Inspections and Title 5 design in MA, stormwater permitting, including MSGP, CGP and operational stormwater permitting.As the owner, John is directly involved with every project undertaken.
Services
Trinity Engineering provides Civil Engineering design services to a wide array of clients. Whether your project involves Stormwater, Erosion Control, Wastewater, Water Supply, Subdivisions, Retaining Wall or Slope Stability issues, Stream Crossings, Commercial Solar or Floodplain Studies contact Trinity to see what we have to offer.
Water Supply
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A water supply system must be designed to provide water of adequate quantity and quality for the proposed use. A water supply system consists of the water source, pumping systems, water storage tank, the transmission or distribution system, and may also require a disinfection or treatment system. Every potable water supply source has a source protection area surrounding it.
Subdivisions
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A subdivision creates multiple parcels of land from an existing tract of land. Subdivision design is the art of seeing what the land has to offer, working within the applicable laws to design a development that will serve the future owners and the municipality. Designing a subdivision is sometimes very straightforward.
Retaining Walls & Slope Stabilization
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On certain Site Designs, retaining walls are required to provide a safe and stable grade transition. A site design often uses a simple dry laid stone wall to define an area. A simple gravity retaining wall can serve as an attractive way to provide a grade change in a site plan. Improperly designed retaining walls fail by overturning, sliding, settling, or by a global slope failure.
Stream Crossings
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Culvert and bridges must be designed to safely pass the design storm. In addition, they must be designed to comply with stream crossings standards. Proposed crossings must provide for Aquatic Organism Passage, or AOP. As a result, state design standards follow the US Army Corps of Engineers requirements for stream and river continuity.
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