ESA is pleased to announce that it has merged with Sitka Technology Group, facilitating the...
Protecting precious water resources is more important and challenging than ever for today’s communities.
This single project both maximizes the amount of recycled water available for potable reuse in the City of Ventura and enhances the ecology of the Santa Clara River Estuary for the protection of native, sensitive species that rely on it.
Client: City of Ventura
Oak Harbor Clean Water Facility
This $140 million, award-winning clean water facility replaces the City’s aging facilities with an innovative treatment process that accelerates nature’s normal decomposition process, resulting in clean water effluent into a nearby bay and reusable biosolids that can be used as fertilizer, thereby avoiding a trip to the landfill.
Oak Harbor, WA
Client: City of Oak Harbor
Oroville Spillways Emergency Response
In February 2017, in the wake of severe storms, the California Department of Water Resources’ (DWR) Oroville Dam Main Spillway and Emergency Spillway sustained serious damage, including concrete failure and severe erosion on and adjacent to the Main Spillway and erosion downstream of the Emergency Spillway. Soon after these damages were identified, DWR began a wide range of repairs that also included substantial repairs to roads, power lines, fencing, and other security features, as well as revegetation and recreation-focused work throughout the project site.
Butte County, CA
Client: California Department of Water Resources
Seasons of flood and drought, eroding shorelines, pollution, growing demand, and stringent environmental and security regulations are increasing the pressure at every point in the water cycle.
ESA partners with clients to thoughtfully navigate these complexities. Our team provides integrated, enduring solutions for the supply and conveyance of treated and recycled water, as well as wastewater reuse, watershed management, and flood control.
From concept to completion, we assist with the planning, permitting, and implementation of water projects. Our integrated approach saves time and money; minimizes impacts to the environment; and advances our clients’ strategic resource management and stewardship goals.
We work with clients to address aging dams, reservoirs, and other infrastructure systems to keep up with demand of a growing population’s residential and agricultural needs. Our team makes resilience planning in the face of climate change—including historic weather events, drought conditions, flood control, and sea level rise considerations—a top priority for dependable, long-lasting investments to critical infrastructure improvements.
Our work has been consistently 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.
Los Angeles Department of Water and Power Environmental and Air Quality Services
Various Locations, Los Angeles, CA
News & Ideas
We are happy to announce four new members to ESA's Board of Directors and three...
Meet Michael Gatheru—who just received his undergraduate degree from UCLA in Environmental Science. Michael joined...
The Washington State Legislature passed a two-year $59 billion budget and several major pieces of...
Read a recent article co-authored by ESA's Tom Barnes in a recent issue of UWI's...