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Rainbow Ranche Collection

Memorandum Re: Rainbow Ranch[e] Pumping Scheme, December 27, 1943 [unknown] Dec 27, 1943

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 *
JZo/3.£7.1,*C*.dS
r^l MEMORANDUM    El
BAXHBOf    RABCH    PUMPXHG Mmmmmm SCHblSK,  under which it  is
proposed tc pump water from ^ooda Lake to height  Of land on East line
of Rainbow Ranch *
Area to be irrigated 300 acres
Static head 260  ft*
Q,uantiry of water per acre 2.00 acre feet
Horespower required 102    H*P.
Cost  of power per H.P.per season of 120  days      ;;,_   1 20.00
Total cost  of pewdr per season #2040*00
.nee ,
Cost  of power per acre per season #      6.80
Length of pipe required ,r    3300*0 ft*
Diameter of pipe  required 12®  inches
Quantity of water required p%r 24 hours 5*00 acre feet
Plow of water required- '2*5 cub.ft.per acre
Friction head in 33000   ft,   of 12*  diam pip* carrying
2.5 c.f.s*   is 4*0  ft*  per 1000ft*  or 13*2 ft*  for 3300  ft.
Cost of 3.300  ft*  of 200ft*h*ad 12* diam wood pipe
at #l*9o  per ft.   laid #6270*00
Cost of pump and motor 2500.Q0
Cost  of plant I. 8770*00
Cost of plant -per  acre  say 3**00
Interest and sinking fund on $8770 at 12$                     1Q52.40
*         *             *           *    per acre 3.51
Power charge per acre  <5«BQ
:
fetal emerge -per acre f    10*31
To which add Tjf% for contingencies 1.54
Making total charge-annuan- per'acre # 11*85
Or asy $    12.00 per acre
Size of pump required   8wx 6M
fo above charges add say f 3*00 P^r acre for
operating charges making total charge
annual* per acre # 15*00
Above capital charges do not include pump house,foot valve pump foundation
valve in raising main,road crossings &e* which would probably bring
the capital cost to #9000*00 and which is covered by the 15$ in
annual charges per acre*
It is assumed that all irrigated lands Berth of the Rainbow Ranch be
served from proposed system ,and possibly some South of the Rainbow
A?-   cg>-*-o-r*^c^ |g ^ j y

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