Section R315-303-2 - Standards for Performance(1) Ground Water. An owner or operator of a disposal facility shall not contaminate the ground water underlying the facility beyond the ground water quality standard set in Section R315-308-4 or, for constituents not set in Section R315-308-4, as established by the Director based on health risk standards.(2) Air Quality and Explosive Gas Emissions. (a) An owner or operator of a disposal facility shall not allow concentrations of explosive gases generated by the facility to exceed: (i) twenty-five percent of the lower explosive limit for explosive gases in facility structures, excluding gas control or recovery system components; and(ii) the lower explosive limit for explosive gases at the property boundary or beyond.(b) An owner or operator of a disposal facility shall not cause a violation of any ambient air quality standard at the property boundary or emission standard from any emission of landfill gases, combustion or any other emission associated with the facility.(3) Surface Waters. An owner or operator of a disposal facility: (a) shall not cause a violation of any Utah Pollution Discharge Elimination System permit or standard from discharges of surface run-off, leachate or any liquid associated with the facility; and(b) shall be in compliance under the Clean Water Act for any discharge as well as in compliance with any area-wide or state-wide plan under Section 208 or 319 of the Clean Water Act.Utah Admin. Code R315-303-2