Protect environmental elements within the jurisdiction, such as water, air, and soil. Supervise and manage prevention of exhaust, waste water, and solid waste, toxic and harmful chemicals, dusts, stenches, noise, vibrations, and other pollutants in the district. Investigate, evaluate, and control problems with the environment and water service within the jurisdiction. Supervise and manage protection of drinking water sources and quality thereof as well as comprehensive management of water environment. Conduct field inspection of units that discharge pollutants within the jurisdiction. Accept complaints about environmental pollution and water service, deal with disputes over environmental pollution and water service, investigate and punish violations in regard to environment and water service, and organize supervision of law enforcement in regard to environmental protection and water service.