
A D Marble Co Inc
King of Prussia, PAEnvironmental, Cultural, and Water Resources Engineering
Service detail: Environmental Engineering
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Environmental, Cultural, and Water Resources Engineering
Service detail: Environmental Engineering

Celebrating 70 Years of Engineering and Design
Project: Route 1 Improvements

Multidisciplinary engineering and support services in the Baltimore-Washington area
Project: WMATA Bus System Renovations

Your trusted partner for municipal engineering.
Project: Upper Uwchlan Township Municipal Authority Administrator

Professional Civil Engineering and Land Surveying Services
Project: Pre-stressed Concrete Slab Bridge No. 10172 Replacement

Providing comprehensive engineering, construction, and construction management services.
Service detail: Federal Services
Adams Environmental Engineering Group (AEEG) is a full-service environmental engineering and contracting firm based in the Mid-Atlantic region, providing consulting, design, remediation, and site assessment services for commercial, industrial, and residential clients. AEEG holds Professional Engineering licenses in Maryland, the District of Columbia, Virginia, and 11 additional states, bringing more than 20 years of experience to environmental projects throughout the region.
Service detail: Environmental Site Assessments
Transforming Our Environment and Communities, with Integrity and Vibe
Project: Hancock County Marsh Living Shoreline
Shaping a safe, sustainable, and equitable future.
Service detail: Health and Safety

Arthur Engineering Services (AES) is a Laurel, Maryland-based practice specializing in condition assessment of water and sewer infrastructure. AES performs closed-circuit television inspections, sewer system evaluation studies, infiltration and inflow investigations, flow monitoring, hydrant and valve testing, and GIS/GPS asset surveys for municipal clients. Its field teams hold NASSCO PACP/MACP/LACP certifications and deliver large-scale cleaning and inspection contracts for DC Water, the City of Baltimore, and WSSC across hundreds of thousands of linear feet of sanitary sewer and stormwater infrastructure.
Project: DC Water Sewer System Evaluation Study (SSES) - Phase I Nicholson Street Area

Environmental Engineering & Consulting Services
Project: Former Nebraska Ordnance Plant - Remedial Optimization and Pilot Study

Innovative, high quality, and responsive engineering solutions
Project: MD 180 / MD 351 Highway Improvements

Intelligent Solutions for the Life of the Building
Service detail: Building Systems Engineering
Provide the Highest Level of Service to Our Clients While Delivering Value
Project: 540 West Madison

Geotechnical drilling and engineering, led by engineers who know what engineers need.
Service detail: Geotechnical Drilling and Sampling
Land development design, civil engineering, surveying, and environmental planning in Maryland.
Service detail: Land Planning
Building Community. Delivering Results.
Project: Aventura Mall
Resilient solutions for the waters we call home.
Service detail: Program Management

Solutions for Water, Wastewater, and Energy Efficiency
Service detail: Water Infrastructure Engineering

Crafting a Shared Vision of Success
Service detail: Planning and Land Development
Reliable. Innovative.
Project: Dulles Corridor Silver Line Metrorail Project Phase II

Designing. Developing. Delivering.
Project: Honeygo Elementary School

Civil Engineering Consultants with Experience
Service detail: Site Civil Engineering

Collaborative analysis thoughtfully applied.
Service detail: Chemicals and Contaminants of Emerging Concern