A method for utility monitoring to ascertain unidentified utility consumption, having the steps of: a) providing a utility; b) passing the utility through a primary meter; c) supplying the utility to a plurality of secondary meters after the utility passes through the primary meter; d) measuring a first amount of the utility passing through the primary meter over a first time period; e) measuring the sum of the utility supplied to the plurality of secondary meters over the first time period; and f) determining a difference between the first amount of the utility and the sum of the utility supplied to the plurality of secondary meters over the first time period, wherein the difference is an amount of unidentified utility consumption. Also disclosed is a system for utility monitoring to ascertain unidentified utility consumption. The system has a utility, a primary meter, and a plurality of secondary meters.