A series of brief reports is presented on the following subjects: Impact of environmental control technologies on the energy crisis; publications - 1973; advanced wastewater treatment plant at Piscataway, Maryland; identifying organic pollutants in water; survival of fecal coliforms and fecal streptococci in a sanitary landfill; sludge incineration and fuel conservation; producing protein while reducing waste; toxicity of wastewater disinfectants; BGM: a new cell line for recovering viruses from water; radiorespirometry: rapid toxicological screening of environmental pollutants; a swirl device for regulating and concentrating combined sewer overflows; recreational water quality criteria; granular media filtration of secondary effluent; and coal refuse disposal in the eastern United States.