Both variables are statistically significant. This fit predicts that for properties without lead pipes the average lead non-compliance is 0.18% while for properties with lead pipes the average non-compliance is 4.98 %. Hence, it is about 28 times more likely that an infringement occurs in a property with a lead service pipe than one without. Now there are about four times as many properties without lead service pipes as with. Hence it is estimated that about 87% of infringements occur in properties with lead service pipes (i.e., 1 in 8 infringements are at properties without lead service pipes).