LOCAL AND MULTI-STATE WATER POLLUTION CONTROL PROGRAMS.
D003140:Communicable Disease Control; D003247:Conservation of Natural Resources; D006801:Humans; D007878:Legislation as Topic; D011634:Public Health; D014481:United States; D014871:Water Microbiology; D014876:Water Pollution
COMMUNICABLE DISEASE CONTROL; LEGISLATION; PUBLIC HEALTH; UNITED STATES; WATER MICROBIOLOGY; WATER POLLUTION