DHC Environmental Consulting is a small family owned business specializing in lake management, drinking water compliance and Legionella management. DHC specializes in lake and pond management with over 20 years experience in Arizona. DHC has over 20 years managing water systems throughout most of Arizona. Water systems we operate are as small as seasonal RV parks and as large as schools, power plants, and a hospital. Please contact us about our services. DHC also specializes in Legionella sampling, control and management. DHC is the only private company in Arizona to manage Legionella in a large public water system.