BANGOR WATERWORKS SELF-SUPPORTING. The Bangor, Me., waterworks system is the only municipal department which not only supports itself. but, also, shows a surplus. It has a total of almost forty-four miles of mains laid, 4,546 service pipes in use and 252 fire hydrants set. The city departments have been furnished with water to the value of $14,350 the past year, and the net revenue from the users of water amounted to $73,445.98. Last year there were pumped 1,260,408,785 gals, of water. The balance to apply to the refunding of the bonds issued by the city at the building of the plant amounts to $8,349.54.