The border vidette., 1921-12-24
ENGINEER SUBMITS REPORT.
City Fathers Vote to install Electrical
 Pump Unit.

 Kelsey, civil and hydraulic en- gineer, authorized by tbe com mon council of Nogales to pre- sent data relative to the installa tion of new pumping unit at the city plant, recommended to the City Council last Monday night that an electric driven, deep we'll turbine pump be in stalled.
 The pump is to be installed near the present pumping plant with a guaranteed capacity of | 1000 gallons per minute, using 1 the present discharge mains.
 It was moved by Councilman Duffy, seconded by Councilman Fielder, tbat the recommenda. tions of Engineer Kelsey, be adopted.
 The vote stood, Ayes, Coun cilmer, Duffy, Fiedler and Wy lie; Nayes, Councilmen, Herold, Karns and Middleton. Mayor Harrison cast the deciding vote in favor of the recommendations of the engineer. 1 The report of Engineer Kel- | CJ 1 tion, is as follows:
 l Recommend That: | An electric driven, deep we'll turbine pump be installed near the present pumping plant with a guaranteed capacity of 1000 l gallons per minute using the l present discharge mains; A new we'll be dug just below 1 the present we'll said we'll to be about 80 it. deep with tunnel | under the Santa Cruz river to it's deepest point, well to be 6x12 feet and provision made for iu- stalIing duplicate unit of pro- posed installation at some future time; . l Meters be installed in each of the discharge lines at the Sum init between the Pumping Sta | tion and the city. By-such in stallation,: the city can keep check on the amount of water pumped, the efficiency of the pumps, and the loss of water in distribution.
 l That the present pumps and engines be thoroughly overhaul ed and put in first class condi- tion for stand by plant. From the best information ob 1 tainable, it appears that there is no material difference in the cost of operation and it is a matter of which plant is most desirable.
 My opinion is that the cleo trical plant would be the most desirable for the following req sons:
 Ease in starting and operating, j. Lesser initial investment,
 More reliable, { Less care and supervision, Since completing my report. 1 have received from the De La | Vergne engine agents a written confirmation of their verbal pro- | posal but they raised their-price about $3, ,OCO.OO and only; guar. anteed their plant to deliver ,OCO gallons. per minute against l a head of 500 it. instead of 53O ft.- I did not change my estimates, which are based upon the; lower figure of their verbal quotation, since I have recommended that an electrically driven pump be l installed. | PROPOSED OIL ENGINE UNIT
 The proposed oil engine unit would consist of 200 lp. De La Vergne Oil Engine, direct con nected to a Deane Deep We'll Triplex Pump with a capacity of II ,0OO gallons per minute. | The cost of the unit installed, !, EcompIete, would be $64, 96O.OO. [ The cost of operating this plant with depreciation figured at per cent on duty of 2O,OOO, 1000 gallons per month; 9 per cent on duty of P 100000 gal Ions per month; and 10 per cent 1 on duty of 5,OOO,O ,OOO gallons per month, interest at 6 per cent labor, fuel oil, lubricants, and I supplies at the same rate that the present plant has cost for the last 30 months and repairs at the average cost for the past years; would be follows:
 20, 100000 gallons per
 month per thousand
 gallons s............ 5 .1116 ?. 100000 gallons per