/wsww Engineering Mid-Term Exam (10-2s-2017) Each 1 Point) 4. State whether true
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/wsww Engineering Mid-Term Exam (10-2s-2017) Each 1 Point) 4. State whether true or false Statement L 10 mg/L is considered to be equivalent to 1,000 ppm in mass units Addie solutions have generally a pH value greater man 7 . Anthropogenic pollution originates from natural events (hurricane, etc) should not be considered as a pollutant as it will cool down .eght of an object is constant anywhere it the object's mass is constant. Under heavy loads of pollution, the dissolved oxygen in a stream can be negative We can determine it using DO sag curve vil. Point source of pollution example could be an effluent from waste water treatment plant il Groundwater is most likely needs less treatment than surface water. x. As long as septic tanks are located further away from a house or facility. there will not be any environmental issue. x. Plastics are less biodegradable than common metals xi. Excessive groundwater pumping from wells located near an ocean can lead to salt water intrusion. xii. TCEQ and USEPA environmental requirements should be the same by law xii Effluent is the discharge into a wastewater plant. xiv. MSW includes industrial pollutants. xv. Industries are required to treat their discharges before they are allowed into municipality sewer systems 5. Environmental engineers also work at federal and state regulatory agencies. They are responsible for reviewing and permitting of new water and wastewater treatment plants, air-pollution control technologies, cleanup of contaminated land sites, and the siting and operation of sanitary landfills. The federal government agency is US EPA and the State of Texas regulatory agency is a) Texas EPA (TEPA) b) Texas Commission on Environmental Quality (TCEQ c) Texas Commission on Pollution Control (TCPC) d) None of the above Page 2 of 2Explanation / Answer
False (10 ppm) False ( less than 7) False (man made events) False False (weight depends on gravity ) True True True True True True No idea False ( discharge into water body such as lake or river) False (includes household waste) True TCEQ
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