Since 1933, Carollo Engineers Inc. has been providing planning, design and construction management services for water and water related problems. Located in San Diego, Calif., the company specializes in water engineering which helps to protect public health and water environment. It has expertise in water treatment, wastewater treatment, sustainability, integrated water resource, research/development, infrastructure and asset management. The engineering company caters to municipalities, public agencies, private developers and industrial firms. Carollo Engineers Inc. operates more than 28 locations across 12 states.