Daily Arizona silver belt., 1909-12-12
Daily Capacity of S,O00,000 Gallons When All Are
 Installed
SURPLUS IS USED
 FOR IRRIGATION
Water Flow From Mine This Year Much Less Than
 Past Season

By the beginning of the new year, two of the four new Nordberg pumps which are being installed on the 1900 foot level of the Old Dominion mine will be pumping water. The other two will be in commission within short time after the first of the year. These large pumps will have a capacity for pumping about S,OOO,OO0 gallons of wa ter per twenty-four hours. The only work now necessary to be done to com plete the equipment for the pumps con sists of putting in few minor pipe con neetiOns. When these pumps, which will be the largest yet installed in the com pany's mine, are in running order, the development work will be carried on in a much more rapid and economical man. ner than has been possible heretofore.
 The plan for handling the water of the mine is to pump, by means of cleo tric machinery, to the twelve hundred level, from which point the large steam pumps will lift the water to the surface through the A shaft. That which is not needed at the surface for the company s power plant is allowed to escape into the Miami Flat district, where it is used for irrigating purposes.
 The pumping system at the l,200 foot station is of the shape of a maltese cross. The four pumps send the water into one main pipe, which conducts the water up winze to the eleventh level, where, by means of crosscut, access is had to the pumping compartment lead ing to the surface.
 The daily surplus of water from the mine working at the present time IS con. siderably less than usual The water pumped last year at this time was about 3,20O,000 gallons pe' twenty.four hours, which is practically tue same amount as is now being pumped from the much more extensive workings. Mr. Mein, the mine superintendent, considers this an exceptionally dry season at this prop erty.
 The development work is being vigor- Ously prosecuted on all levels below the tenth, while above this level only one shift is employed.
 The general trend of the work is to the westward, along the general direc- tiOn of the Old Dominion fault ledge. the idea being to strike the intersection of this fault with what is known as the 'west" fault. At this intersection of the two fault planes, the line of division between the sulphide and oxidized ore zones, marked by the "west" fault plane, the ore body being mined is To- cated, and it is toward this fault that the work on the sixteenth level is being carried on at the present time. It is the expectation to strike the sulphide ore body as soon as the "west" fault is reached, which will be within week or ten days. According to Dr. l.. D. Rlcketts theory, which. up to date, has proven correct, the ore body thus far mined along this fault will continue at a greater depth as long as the limestone occurring on the hanging wall remains as the hanging wall
 On the fifteenth level the largest pro. portion of work is being done at present a large part of the ore being mined comes from this level. A rich body has recently been opened up on the eastern part of the fourteenth level and the workSOn the thirteenth level IS ex- pected to enter the west ore body one hundred feet from the present face of the crosscut. As soon as the pumps are running satisfactorily on the twelfth level, drifting will be carried on with larger force here than can now be em ployed, and the ore at this level will be mined. The average daily output of the mine IS being maintained at about seven hundred tons.
 The smelter continues to produce cop per Tor shipment at the usual rate