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<br />Ditch
<br />s stem
<br />Gran V1ew
<br />Crawford Clipper
<br />Needle Rock
<br />A1
<br />A2
<br />Aspen Canal
<br />Aspen Canal
<br />
<br />Hydrosalini ty
<br />
<br />Reclamation's study of the SSA began in February 1985 with initiation of
<br />a monitoring program to define surface inflow and outflow water quality and
<br />quantity. To determine the base flow salt loading, a base flow separation
<br />technique was applied.
<br />
<br />CHAPTER II
<br />
<br />Ditch
<br />system
<br />Grand View
<br />Crawford Clipper
<br />Needle Rock
<br />A1
<br />A2
<br />Aspen Canal
<br />Total
<br />
<br />PIAN FORMULATIOO
<br />
<br />Table 3
<br />Irr~ation system analysis
<br />Wi in SSA
<br />
<br />outside SSA
<br />canal Lateral
<br />length length
<br />(feet) (feet)
<br />48,396
<br />7,734 18,470
<br />
<br />Acres
<br />served
<br />l67.0
<br />237.9
<br />
<br />Canal
<br />length
<br />(feet)
<br />39,357
<br />21,597
<br />31,900
<br />
<br />Lateral
<br />length
<br />(feet)
<br />35,265
<br />222,488
<br />38,425
<br />7,950
<br />4,605
<br />2,640
<br />311,373
<br />
<br />404.9
<br />
<br />Acres
<br />served
<br />l,943.8
<br />3,165.l
<br />1,193.7
<br />218.5
<br />138.9
<br />N/A
<br />6,660.0
<br />
<br />5,900
<br />62,030 l8,470
<br />
<br />30,100
<br />l22,954
<br />
<br />Table 4
<br />Field inventory data
<br />Measured Design
<br />divefsion size
<br />(ft s) (afl30 ac)
<br />
<br />Record
<br />source
<br />Measure
<br />Smi th Fork Report
<br />Water Right
<br />Measured
<br />Measured
<br />Smi th Fork Report
<br />Smi th Fork Report
<br />
<br />
<br />, . .
<br />3,403.0 157.0 2.74
<br />1,l93.7 41.3 2.06
<br /> 2l8.5 22.0 5.99
<br /> 138.9 9.2 3.94
<br />5,974.3 l25.0
<br />1,l93.7 25.0 1.25
<br />
<br />Seepage losses from off-farm delivery systems were determined from
<br />permeability data contained in the smith Fork project Definite plan Report and
<br />winter and summer wetted perimeter estimates.
<br />
<br />This data resulted in a range of estimated seepage rates of 0.27 to
<br />0.41 feet per day, with an average of 0.38 feet per day. Seepage losses from
<br />on-farm delivery systems were estimated using SCS data consisting of a 0.47
<br />foot-per-day seepage rate, head and tailwater ditch wetted perimeters, and
<br />ditch lengths.
<br />
<br />Deep percolation was estimated from SCS data that indicated a possible
<br />range of 0.8 to 1.5 acre-feet per acre per year. Infiltrated precipitation
<br />estimates developed by the SCS ranging from 9.23 to 12.22 inches per year were
<br />
<br />also used to define ground-water inflow. using this data, the maximum
<br />possible ground-water inflow to the SSA was determined to be 33,500 acre-feet
<br />per year.
<br />
<br />12
<br />
<br />00C038
<br />
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