To conserve water within the system, the municipal water utility shall:
A. Meter all customer service accounts (does not include fire lines);
B. Meter all withdrawals from the source of water supply (Lake Elwell);
C. Meter all treated water pumped into the municipal water distribution system from the municipal water treatment plant;
D. Maintain "unaccounted for water" at eighteen percent (18%) or less. (2014 Code)