Zest LLC

Assists clients with Chesapeake Bay TMDL program compliance and provides comprehensive design, review, and retrofitting for stormwater management facilities using green infrastructure technologies.

• TMDL Compliance Auditing
• LID and ESD Retrofit
• Green Infrastructure Engineering

Delivers complete erosion prevention and sediment capture solutions for active construction sites to protect local water quality.

• Runoff Capture Planning
• Site Stabilization
• Conveyance System Layout
• Dewatering System Setup
• Pump-Around Flow Operations

Designs functional storm drain systems and surface channels to manage runoff and resolve water accumulation issues.

• Runoff Complaint Investigation
• Stormwater Easement Mapping
• Storm Drain Layout
• Open Channel Surface Construction

Simulates surface water and watershed processes using advanced software tools to support planning and design efforts.

• Surface Water TR20 and TR55 Modeling
• GIS-Based Watershed Analysis
• HEC-HMS Flow Simulation

Analyzes river dynamics, structural water passages, and environmental risks through advanced physical modeling.

• River Dynamics Modeling
• Bridge and Culvert Waterway Analysis
• Scour Susceptibility Analysis

Restores natural waterways and protects underlying infrastructure to prevent erosion and stabilize banks.

• Waterway Channel Stabilization
• In-Stream Utility Crossing Protection

Guides land development projects from initial feasibility and grading through construction sequence management.

• Land Layout and Grading
• Subdivision and Rezoning Representation
• Access Control Planning
• Construction Cost Evaluation
• Structural and MOT Drafting
• Sequence of Construction Planning
• Project Record Documentation

Utilizes multi-phase flow simulations to solve complex fluid behavior challenges in various water systems.

• Multi-Phase Flow Simulation
• Air-Water High Velocity Flow Analysis
• Volume of Fluid Free Surface Modeling
• Three-Dimensional Flow Simulation

Identifies flood risks and guides clients through regulatory mapping and easement processes.

• Inundation Simulation and Study
• Floodway Limit Determination
• FEMA Map Revision Facilitation
• Environmental Buffer Delineation

Evaluates potential dam failure scenarios and creates detailed hazard maps for emergency planning.

• Failure Modeling with CFD
• HEC-RAS Breach Modeling
• Inundation Map Generation

Coordinates and secures critical regulatory approvals from environmental and local municipal authorities.

• NPDES MS4 Compliance
• General Construction Stormwater Licensing
• Joint Environmental Applications
• Storm Drain and SWM Construction Approvals
• Grading Authorization Procurement
• SWM Exemption and Waiver Filings

Provides independent technical evaluations of engineering plans to ensure safety and regulatory compliance.

• SWM Plan Evaluations
• Erosion and Sediment Control Appraisals
• Drainage and H&H Assessments
• Flood Limit Audits