Main Menu ESA is a 100% employee-owned environmental consulting firm delivering work that matters. ABOUT US » Employee- Owner Spotlight BARBRA CALANTAS Southern California Biological Resources Director As a certified yoga instructor, Barbra brings her strength and energy from the yoga mat to her work at ESA. MORE >> KARL HEISLER Senior Project Manager Whether it's a San Francisco project history lesson or deep-dive into CEQA, Karl has got you covered. MORE >> Join Us We’re always looking for new talent. At ESA, we believe every employee has a unique combination of knowledge, skills and experience that contributes to our success. CAREERS » Pure Water Soquel Advanced purification of treated municipal wastewater for groundwater basin replenishment. READ MORE » News & Ideas Bureau of Land Management Archaeologist Tony Overly Joins ESA Tony Overly, MA, RPA, has joined the firm as Cultural Resources Practice Lead, bringing nearly 30 years of experience in heritage preservation. Tony has spent the last decade as an archaeologist for the Bureau of Land Management, most recently serving as the State Archaeologist for California and program lead for archaeology, paleontology, and tribal relations. READ MORE » Designed and Delivered: Hamilton Wetlands Restoration Project After more than a decade of planning, design, permitting, and construction, the Hamilton Wetlands outboard levee was breached on April 25, 2014, re-connecting the site to the tidal waters of the Bay, creating a mix of tidal and seasonal wetland, transitional ecotone, and upland habitats. See how the project is performing now. READ MORE » STAY IN TOUCH >> Sign up for our newsletter About Leadership 100% Employee Owned Employee-Owner Spotlight Culture History Join Us Benefits Job Openings Professional Development Culture Services Air Quality Biological Resources Climate Change & Resilience Cultural & Historic Resources Environmental Permitting & Compliance Environmental Review & Documentation Flood & Stormwater Management Landscape Architecture Planning Restoration Technology Water Resources Services A-Z Projects Airports Communities Conservation & Restoration Energy Federal Municipal Ports & Harbors Transportation Water Projects by Client News & Ideas Blog Events News White Papers Offices Atlanta, GA Bend, OR Camarillo, CA Delray Beach, FL Irvine, CA Los Angeles, CA Oakland, CA Orlando, FL Pasadena, CA Pensacola, FL Petaluma, CA Portland, OR Sacramento, CA San Diego, CA San Francisco, CA HQ San Jose, CA Sarasota, FL Seattle, WA Tampa, FL Copyright © 2021 Environmental Science Associates Privacy Policy | Deliverit | Sitemap ESA is a 100% employee-owned environmental consulting firm delivering work that matters.