A field using wastewater effluent for irrigation should be separated from a well by at least {Ans: 500 feet}The meter most commonly used for residential customers is the? {Ans: postive displacement meter}The four water quality standards established for drinking water in the Safe Drinking Water Act are chemical, bacteriological,radiological and {Ans: chemical, bacteriological,radiological and physical.}surface load is {Ans: the weight of traffic on the pipe}Taste and odors in ground water are commonly caused by? {Ans: Disinfectant residuals Hydrogen sulfide}A PVB must be installed above all downstream piping and openings a minimum of ? {Ans: 12 inches}