I'KKMISSIIU.K IKKICATION ('IIAKill-3% 89 



the 1000-ho»ir liiii- A I'mw m »."• -•ii"«min i" t iinrnii.- for 1(U)() hours 

 IS fvpuvaK'nt to S'J >(') a«Ti* fi'«»t. 



It is intorostinp to noti- that if iUv pumpinfr I'limt is oporatjvl 10(K) 

 hours por niiiitini. \vat«r ran bo lifted alwiut 70 f«'t»t for appntximat«^ly 

 •*•'» per aorefoot, hut if the op«*rafion tijiie is iiH'reased to :{(M)() hojirs 

 .•lK>iit the s.itne cost per aere ftnit «'aii lie iiiaintaiiied with a lift of 160 

 fe^t. Furthermore, if the pumping' lift remains at 70 feet, an inerwise 

 in the annual operation time from 1000 to .'{(MK) hours will result in a 

 ,|, — in the estimate«l eost »»f pumpiiiir (not ineluilinj; an annual 



»■! _ ;or use of the Nxelh of fnuu $.'» to $'J..'>0 pi-r acrt* f"«tt. 



Dia^rrams similar to IMate VI ean he prepared for <Ieep-\vell turbine 

 plants of preater capaeity. I'nder normal eonditions the unit eost of 

 punutiritr d^M'teasi's as the eapneity of the plant increases. 



riate \'1I sliows the annual eharire per aere-foot of water pumped 

 from 12-ineh stove-pipe wells of from 150 to fiOO feet in tb'pth. The 

 total costs set forth on the dia(;ram inelude drillinp. easing?, and per- 

 fnratinir. The noimal life of a w«'ll was tak»ii at 20 years. '\.'M\ per 

 ••ent of the eost beinp set aside annually to provide for n'plaeement 

 from a sinkinj? fund earninjr 4 per eent per annum. Interest was 

 (harped at therate of fi per cent ami an additional 1 per cent was 

 allowed for taxes. 



By eombininp costs piven in both diairrams. an estimate of the total 

 • ost of pumpinp with a deep well turbin(> of 450 pallons per minute 

 '•apacity may be obtaineil. For instance, avsum.inp a lift of 150 feet, an 

 ofieratinp period of 2000 hours, and a well depth of 400 feet: 



Vohnne of water pumped"" ' 166 aere-feet. 



From Plate VI. cost of luimpii.;: pi aiTe-foot, not ineludinp 



••harpes on well . —$6.00 



From PIat»« VII. annual r'harpe on well per acre-foot ■— 1.30 



Total estiinai«'4i cost of pumpinp per aere imii ajiproxi 



n,!.f..tr — .*7 ^n 



