Our Services

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• Drainage Designs and Plans
• Hydraulic Analysis and Design
• Erosion Control and Water Quality
• Septic and Wastewater Design
• Storm Water Modeling
• Land Use and Master Planning
• Residential and Commercial Site Development
• Public Infrastructure Design
• Private Development Design
• Construction Management
• Utilities Design

DES provides the full spectrum of civil engineering services from beginning concept design, to construction oversight, to final inspection. DES is known for high quality design, and our ability to obtain rapid permitting. Our deep understanding of relevant regional, state and federal regulations ensures streamlined and economical solutions.

• Environmental Impact Assessments
• Site Investigations
• Remedial Design & Construction
• Green & Sustainable Planning
• Hazardous/Toxic Waste (HTW) Management
• Military Munitions Response Services
• Phase I and Phase II Environmental Assessments /Investigations
• Regulatory Negotiation
• Wetlands Delineation
• "Shovel-Ready" Site Certification
• Spill Prevention, Control, & Countermeasures Plan

 DES is experienced in performing environmental engineering services in accordance with local, state, and federal regulations. Our deep environmental experience includes environmental analysis and full remediation.

DES also has specialized expertise in Military Munitions Response (MMR) services for both active installations and Formerly Used Defense Sites (FUDS).  Our MMR expertise includes the detection, identification, removal, and disposal of Munitions and Explosives of Concern (MEC), discarded military munitions (DMM), Munitions Debris (MD), and Munitions Constituents (MC) to include bulk propellant, and materials potentially presenting an explosive hazard (MPPEH).  

• Legal drain mapping & repair
• Utility & infrastructure mapping
• Parcels, streets, right-of-ways, zoning, water and sewer system mapping

 DES uses GIS mapping and data to support large scale projects for both mapping and analysis of data. Our GIS services supply municipalities with critical infrastructure maps and data, to help guide infrastructure maintenance.