We partner with clients to thoughtfully navigate regulatory complexities and provide integrated and enduring solutions for the supply and conveyance of treated and recycled water, wastewater, watershed management, and flood control.
From concept to completion, we assist with the planning, permitting, and implementation of water projects while minimizing impacts to the environment. This integrated approach saves our clients time and money and advances their strategic resource management and stewardship goals.
Our work has been recognized with awards from the National Association of Environmental Professionals, Association of California Water Agencies, American Society of Landscape Architects, and International Association for Public Participation.
Construction Compliance Monitoring
Desalination & Recycled Water
Environmental Review & Documentation (CEQA/NEPA/SEPA)
Permitting Assistance
Wastewater
Water Quality
ESA’s team of federal permitting and National Environmental Policy Act (NEPA) experts will recap the most...
ESA is proud to be a Gold Sponsor for this event – one we look...
To protect critical ecosystems and water supplies amid growing climate and regulatory pressures, ESA partners...
Coastal habitats like seagrass meadows, salt marshes, and mangrove forests are among our planet’s most...
ESA is pleased to sponsor, present, and attend this year’s 42nd Annual Salmonid Restoration Conference...
Updated June 26, 2025: As announced by the U.S. Army Corps of Engineers on June...
