“…The introduction of micropollutants to groundwater systems from septic systems is of concern due to the possibility of downgradient transport to adjacent drinking water supplies, and potential for effects on non-target biologic organisms in surface waters receiving groundwater discharge (Schaider et al, 2014;Standley et al, 2008;Underwood et al, 2011, Writer et al, 2010. Hormones, antidepressants, antimicrobials, and other micropollutants associated with septic discharges have been identified as having multiple effects on aquatic species, including impairing the ability of native bacteria in groundwater discharge zones to reduce nitrogen concentrations (Underwood et al, 2011), and affecting physiological and behavioral aspects of fish Vajda et al, 2008;Hinck et al, 2009;Painter et al, 2009).…”