Business Details
41 Years
experience
Civil Engineering and Surveying Services in Pittsburgh, PA
Lennon Smith Souleret Engineering (LSSE) has been a trusted leader in civil engineering and surveying since 1985. Our firm combines decades of technical expertise with a client-first approach, delivering innovative solutions across municipal, commercial, industrial, residential, and utility markets. With over 580 project quality reviews rated as Excellent or Outstanding, we prioritize client satisfaction through transparent communication and rigorous quality management. Our team of licensed professionals brings specialized knowledge in water and wastewater systems, stormwater management, GIS, and site engineering. Headquartered in Coraopolis, Pennsylvania, we serve clients throughout Pennsylvania and the Tri-State region.Our commitment to continuous improvement is reflected in our ISO-aligned quality protocols and proactive staff development programs. We maintain strong community ties through educational sponsorships, job shadowing initiatives, and charitable partnerships. Our strategic business model ensures technical excellence while supporting long-term client relationships and sustainable growth. LSSE's reputation for reliability is built on 35+ years of delivering complex projects on time and within budget. We remain dedicated to advancing engineering practices through technology integration and environmental stewardship.
Services
Civil Site Engineering
Water Facilities Engineering
Wastewater Facilities Engineering
Stormwater Management
Geographic Information Systems
Surveying Services
GIS Asset Management
MS4 Compliance Programs
Brownfield Redevelopment
Infrastructure Permitting
Details
- Year established: 1985
Highlights and features
- 4.48/5 client satisfaction rating from 737+ project reviews
- 35+ years of regional engineering and surveying expertise
- Full-service civil engineering with specialized technical units
- ISO-aligned quality management and continuous improvement programs
- Active community engagement through educational and charitable initiatives
Services
Civil Site Engineering
We provide comprehensive site engineering solutions from feasibility studies through construction. Our services include master planning, grading design, utility infrastructure, and regulatory permitting. With expertise in both greenfield and brownfield developments, we deliver optimized site layouts for commercial, industrial, and residential projects. Our team ensures compliance with local regulations while maintaining cost-effective solutions for clients.
Stormwater Management
Our stormwater experts design sustainable drainage systems and flood protection measures. Services include hydrologic modeling, BMP implementation, and MS4 compliance programs. We specialize in green infrastructure solutions like porous pavement and rain gardens. Our engineers develop pollutant reduction plans and flood map revisions using advanced GIS tools to meet regulatory requirements while protecting communities from water-related hazards.
Water Facilities Engineering
We design and optimize potable water infrastructure including treatment plants, distribution networks, and storage facilities. Our services cover source development, pipeline rehabilitation, and hydraulic modeling. We implement leak detection programs and asset management systems to minimize water loss. Our engineers deliver comprehensive solutions from initial planning through construction for municipal and industrial clients.
Geographic Information Systems
Our GIS specialists create spatial data solutions for infrastructure management and regulatory compliance. We develop customized mapping systems for asset tracking, stormwater management, and utility operations. Using ArcGIS platforms and TRAISR software, we integrate field data collection with web-based reporting tools. Our GIS services support MS4 compliance, capital planning, and operational efficiency across multiple market sectors.
Wastewater Facilities Engineering
We provide end-to-end wastewater engineering services including collection system design, treatment plant upgrades, and consent decree compliance. Our expertise covers I/I reduction, CSO mitigation, and biosolids management. We implement advanced modeling tools for system optimization and develop long-term control plans. Our engineers have worked on complex regional wastewater programs exceeding $3 billion in total investment.
People
Kevin A. Brett
Managing Principal
With over 25 years of civil engineering experience, Kevin Brett leads LSSE's strategic initiatives. He specializes in municipal infrastructure projects and oversees quality assurance programs that maintain our 4.48/5 client satisfaction rating.
Ned Mitrovich
Managing Principal
Ned Mitrovich directs LSSE's technical operations with expertise in stormwater management and MS4 compliance. He leads training programs for municipal engineers and has implemented GIS-based asset management systems for 20+ municipalities.
Jason E. Stanton
Managing Principal
Jason Stanton specializes in water and wastewater infrastructure. He manages LSSE's largest utility projects including the $63M Center Township water treatment plant. His technical leadership ensures compliance with EPA consent decrees and state regulations.
John R. Heyl
Principal
John Heyl brings 30+ years of experience in site development engineering. He oversees LSSE's commercial and industrial projects, including the 833-acre industrial park development and 50+ big-box retail sites.
Lawrence J. Lennon
Principal
As a founding partner, Lawrence Lennon directs surveying operations and GIS initiatives. He has completed route surveys for 162+ miles of underground utilities and leads LSSE's technology integration efforts.
Questions
What engineering services do you specialize in?
We specialize in civil site engineering, water/wastewater systems, stormwater management, GIS, and surveying services for municipal, commercial, industrial, residential, and utility clients.
Which geographic areas do you serve?
We primarily serve Pennsylvania and the Tri-State region with offices in Coraopolis, Greensburg, Aliquippa, Albion, and Dublin.
How do you ensure project quality?
Our ISO-aligned quality management program includes client performance reviews, technical protocols, and 737+ project quality assessments since 2002.
Can you handle complex regulatory projects?
Yes, we have extensive experience with EPA consent decrees, MS4 compliance, and state permitting requirements for water and wastewater infrastructure.
What community initiatives do you support?
We sponsor STEM education programs, host job shadowing events, and support the Leukemia & Lymphoma Society through annual fundraising activities.
How do you approach brownfield redevelopment?
Our team provides complete brownfield solutions including environmental remediation, site grading, and infrastructure upgrades, as demonstrated in the Bridgewater Crossing project.
