Carollo Engineers is an environmental engineering firm that specializes in the planning, design, and construction of water and wastewater facilities. Our staff includes civil, structural, electrical, mechanical, environmental, and instrumentation and control engineers as well as scientists, planners, architects and CAD designers. Cities, utilities and special districts count on Carollo to help them navigate through the increasingly complex challenges of protecting public health, meeting local, state and federal regulatory requirements, protecting the water environment, and addressing public expectations.