Business Details
22 Years
experience
Emergency
services
Trusted Environmental and Civil Engineering Solutions in New England
OHI Engineering was founded in 2004 with a clear mission to address client needs through comprehensive environmental and civil engineering solutions. Our team combines over 120 years of collective experience, including licensed site professionals, environmental scientists, and engineers with an average of 25+ years in the field. We specialize in delivering turnkey services that resolve complex engineering and environmental challenges while prioritizing cost-effectiveness, timeliness, and environmental stewardship. Our expertise spans environmental assessments, remediation, construction services, and emergency response across industrial, municipal, and commercial sectors. With offices in Mansfield and Amherst, Massachusetts, we provide rapid access to clients throughout New England and beyond.Our track record includes high-profile projects like the $60 million Brookhaven at Lexington expansion and complex contamination closures within 60 days. We maintain deep familiarity with Massachusetts environmental regulations and hold licenses in multiple states for remediation work. Client testimonials highlight our ability to deliver results-driven solutions, from geotechnical investigations to large-scale infrastructure projects. Our commitment to treating clients and employees with integrity has fostered long-term relationships across diverse industries including energy, banking, and healthcare. This combination of technical expertise, regulatory knowledge, and client-focused service positions us as trusted partners in solving environmental and engineering challenges.
Services
Environmental Assessments
Remediation
Construction Services
LSP Response
Geotechnical Investigations
Stormwater Design
Septic System Design
Emergency Response
Details
- Year established: 2004
Highlights and features
- We have 120+ years combined experience in environmental and civil engineering
- Our team includes licensed site professionals and professional engineers
- We provide rapid response services across New England
- We maintain licenses for remediation in multiple states
- We deliver turnkey solutions for complex contamination cases
What people say
Outstanding partner
Successful role
Very reasonable
Rapid response
Deep knowledge
Services
Environmental Assessments
Our environmental assessments identify contamination risks and regulatory compliance needs for commercial and industrial properties. We conduct Phase I and II assessments using licensed professionals to evaluate historical site usage and current environmental conditions. Our reports help clients make informed decisions about property acquisitions and development projects.
Remediation
We implement customized remediation solutions for soil and groundwater contamination using methods like excavation, soil vapor extraction, and chemical oxidation. Our licensed site professionals manage projects from initial assessment through regulatory closure. We specialize in complex cases involving petroleum products, chlorinated solvents, and industrial chemicals.
Construction Services
Our construction services address engineering challenges during building projects to prevent schedule delays and cost overruns. We provide sediment control planning, concrete testing, and site layout solutions for residential, commercial, and infrastructure developments across New England.
LSP Response
As licensed site professionals, we respond to environmental emergencies including fuel spills and chemical releases. Our team guides clients through Massachusetts Contingency Plan requirements while prioritizing public health and safety. We handle both planned and accidental contamination incidents.
Geotechnical Investigations
We conduct geotechnical investigations to assess soil conditions for residential and commercial developments. Our engineers provide foundation recommendations, slope stability analysis, and earthwork specifications based on comprehensive subsurface testing and laboratory analysis.
People
Josh Hasenfus
Representative
Project manager with The Trustees of Reservations who collaborated with OHI Engineering on 20+ environmental and civil engineering projects across Massachusetts properties.
Mike Brennan
Representative
Project lead at Brookhaven at Lexington who worked with OHI Engineering on a $60 million expansion project involving a 48-unit residential building and infrastructure development.
Sr. Mariann Garrity
Representative
Project manager at Mount St. Mary's Abbey who engaged OHI Engineering to resolve a complex soil contamination case within 60 days through expert regulatory navigation and laboratory coordination.
Questions
What geographic areas do you serve?
We provide services throughout New England with offices in Mansfield and Amherst, Massachusetts, and licensed operations in multiple states.
What industries do you work with?
We serve industrial/commercial clients, municipal governments, banks, developers, energy companies, and healthcare institutions with environmental and engineering solutions.
What emergency response capabilities do you have?
Our Licensed Site Professionals provide emergency response for environmental incidents including fuel spills, chemical releases, and contamination cases across New England.
How experienced is your team?
Our staff has 120+ years combined experience with an average of 25+ years per professional in environmental and civil engineering disciplines.
What remediation methods do you use?
We implement excavation, soil vapor extraction, thermal desorption, bioremediation, and chemical oxidation among other methods tailored to site-specific conditions.
