The Septic Tanks industry, classified under SIC Code 1711, involves the installation, maintenance, and repair of septic tanks and related systems. Septic tanks are underground structures that collect and treat wastewater from households and businesses that are not connected to a municipal sewer system. The industry is responsible for ensuring that these systems are functioning properly and in compliance with environmental regulations. The industry is highly specialized and requires a range of skills and knowledge in plumbing, excavation, and environmental regulations. Septic tank professionals must be able to assess the needs of a property and design a system that meets those needs. They must also be able to install and maintain the system, including the tank, pipes, and drain field. In addition, they must be knowledgeable about local and state regulations regarding septic systems and ensure that their work is in compliance with those regulations.