Construction Materials Testing, combines laboratory and field-testing of soil and concrete materials to support construction and geotechnical design projects. Summit maintains laboratories in Augusta and Lewiston, Maine. Our Augusta laboratory is accredited by the AASHTO. Laboratory services include grain size analysis, soil moisture content, Atterberg Limits, soil proctor and concrete strength tests. Our experienced field technicians provide field density testing of native soils or compacted fill with our Troxler nuclear density gauge, and concrete slump, air entrainment and strength testing.

Brownfields and Real Estate Development Support Services, covering a broad array of environmental services, from Federal and State Brownfields projects to site permitting, as well as, contamination assessment, remediation design and management. We also have excellent experience in Maine's Voluntary Remedial Action Program (VRAP).


Underground Storage Tank Site Services, including hydrogeological investigations, monitoring well system design and installation oversight, UST removal/replacement oversight and assessments, contamination assessments, remedial system design/installation, remedial system management, permitting, and Spill Prevention, Control, and Countermeasure (SPCC) plans.

Solid and Hazardous Waste Landfill Services, including closure design, construction management, post-closure management, landfill cap studies, active and passive gas collection system construction oversight, leachate management, storm water management, permitting, hydrogeologic investigations, ground water monitoring system design and installation oversight, RPR services. Summit Professional Engineers also perform landfill compliance inspections and have prepared Landfill Operations Manuals required by Maine DEP Solid Waste Regulations.


Subsurface Wastewater Disposal Systems, including design and system installation. Summit has two licensed Site Evaluators on staff. Staff have designed complete septic systems for commercial and judicial facilities, military sites and private residences.

Construction Materials Testing Services for New Water Storage Reservoirs Lewiston, Maine

Asphalt pavement inspection and testing (Construction Materials Testing)

Brownfields redevelopment, Bates Mill Complex, Lewiston, Maine

Contaminated soils management and construction materials testing for the Combined Sewer Overflow project in Lewiston

Low Flow Ground water sampling (typical)

Landfill Construction Management and Construction Quality Assurance (Inspection, Soils and Geosynthetics) ecomaine Phase I landfill, Expansion, South Portland

Septic system design, inspection and construction materials testing - new Somerset County Jail, Madison, Maine

Landfill Construction Management and Construction Quality Assurance (Inspection, Soils and Geosynthetics) Ecomaine Phase I landfill, Expansion, S. Portland