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Table 1
<br />Ready Mixed -Del Camino Pit
<br />Projected Depletion Analysis (March 2008 -February 2009)
<br />~..II ...........
<br />
<br />Surface Area - c cu~cu
<br />Replacement
<br />Number
<br />Out-of-
<br />Required
<br /> of Exposed Gross Total Effective Effective Historical Evaporative Lagged Credits from Remaining of Days Priority Releases Vrain
<br />St
<br /> Ground Water Evaporation Gross Precipitation Precipitation Net Subirrigation Pond Lagging Site Last Chance Replacement Out-of- Replacement from .
<br />Lease
<br /> (acres) Rate (in) Evaporation Rate (in) Credit Evaporation Credit Depletions Factors Evaporation Ditch (0.1 sh) Requirement Priority Requirement Erger's Amount
<br />Month
<br />. 1
<br />"' 2
<br />"
<br />" 3
<br />. 4 5 6 7 8 9 10 11 12 13 14 15 16
<br />"Sep "~ 754' I
<br />'d
<br />2D _ ~,~:~
<br /><
<br />~ ~ 'i. 2 '4"'~ 0b4.-;
<br />M
<br />< `:200 `0'0$x` ~ '<I.92 `' _ 'tl3 /~'x ~2'19~ ~~~1'8Q` ~°x`30 `'D37"°~a ,'0 ,.,.
<br />-
<br />Oct 7~54r
<br />4 r
<br />'2<94~ ';t '185'
<br />,. ~°^, . _
<br />~
<br />'
<br />~'
<br />'- ~ r1.13 ~'
<br />0 ,~0.71"'.'
<br />~; . ~
<br />` 14
<br />T ,,003''"
<br />. ,I ]1 '`
<br />-* ,1 ,32°
<br />0 /. ~: 1 98 ~ .
<br />~.r(:SO 39. Y `t~'1',
<br />,~x ~ 37,v '-, 31 ', -•,~
<br />^,2~ 37 ~ ; 2 6~} ~: sr,
<br />Noy 754 <
<br />
<br />~ ,1
<br />68
<br />~
<br />~ 1 06
<br />~I ~ ';
<br />'SS 0 35-:
<br />~ 0 71 :.
<br />_- 0.00 . 0 7l ` 8.65°0
<br />
<br />~ ` 1 66 'S
<br />~, . "`~ `=x'03 ~ .% ~ .-.
<br />r.3~69, , ~-
<br />.1 :30 t..,r
<br />-:3'69 t
<br />~til9t`
<br />:., r~
<br />Dcc .754,,. 'i= 1264
<br />~ ~ 07Q'., w~ ,0.39 ~ 024
<br />. 0.55 000. 0.55 74i5'o ,,';. '1;43~~. .=1.7L ;, f~p~,3`'14~,;~ ~ IZ
<br />.~ 1 7 ''.,' ~ ,.<
<br />195 ;,:;
<br />
<br />Jan
<br />~
<br />7 54~-:
<br />~
<br />..;, P ~6
<br />w
<br />"
<br />`
<br />'
<br />0 79~;
<br />~ 0r"'9
<br />~
<br />. !>0~18 `"
<br /><
<br />: 0.6 (
<br />~ -
<br />O OUP::
<br />Q 61
<br />6 53%
<br />1 25i ~>
<br />.
<br />-0 91 .
<br />2/23 r ~ '.10 "
<br />~
<br />b 72, .- ,vr
<br />';. ~$2 "~
<br />-
<br /><
<br />F~b , _7,54,;
<br />`• .
<br />:
<br />1:47 `".:
<br />- 092';F., ^5
<br />,.'v_0 ,f2" b, ~ -
<br />Od5 .,,, E
<br />' 0.77 -
<br />OOO : '. °~
<br />,~ ~=
<br />.:
<br />..) 17;,~~ ~ c~'
<br />. .'.-096 .. _ ,-'
<br />2.f3c:yK,
<br />,,29, ~
<br />,2 13 .-
<br />~ 2s4
<br />2A~
<br />` a
<br />y ~ 1 g
<br />,:~~, < 9'69 - -4.24 13:93' "' - l 1 00 ~ 12
<br />19 , ~'~ ''-•
<br />Mar 7.54 2.31 45 0.86 0.54 0.91 0.00 0.91 5.92 1.14 -0.80 1.94 31 1.94 .
<br />2
<br />20 -
<br />Apr 7.54 3.78 2.38 1.39 0.88 1.50 0.03 1.47 6.23% 1.20 -0.07 1.27 30 1.27 .
<br />1
<br />44
<br />May 7.54 5.04 3.17 1.65 1.03 2.14 0.08 2.06 7.13% 1.37 2.57 0.00 31 0.00 .
<br />0
<br />00
<br />Jun 7.54 6.09 3.83 1.20 0.75 3.08 0.12 2.96 8.50% 1.64 3.58 0.00 30 0.00 .
<br />0
<br />00
<br />Jul 7.54 6.30 3.96 0.78 0.49 3.47 0.14 3.33 10.32% 1.98 4.64 0.00 31 0.00 .
<br />0
<br />00
<br />Aug 7.54 5.67 3.56 0.95 0.6 2.96 0.12 2.84 11.54% 2.22 3.49 0.00 31 0.00 .
<br />0
<br />00
<br />Sep 7.54 4.20 2.64 1.02 0.64 2.00 0.08 1.92 11.38% 2.19 1.82 0.37 30 0.37 .
<br />0
<br />00 0
<br />41
<br />Oct 7.54 2.94 1.85 1.13 0.71 1.14 0.03 1.11 10.32% 1.98 -0.39 2.37 31 2.37 .
<br />0.00 .
<br />2
<br />60
<br />Nov 7.54 1.68 1.06 0.55 0.35 0.71 0.00 0.71 8.65% 1.66 -2.03 3.69 30 3.69 0.00 .
<br />4
<br />04
<br />Dec 7.54 1.26 0.79 0.39 0.24 0.55 0.00 0.55 7.43% 1.43 -1.71 3.14 31 3.14 0
<br />00 .
<br />44
<br />3
<br />Jan 7.54 1.26 0.79 0.29 0.18 0.61 0.00 0.61 6.53% 1.26 -0.97 2.23 31 2.23 .
<br />0
<br />00 .
<br />2
<br />44
<br />Feb 7.54 1.47 0.92 0.25 0.15 0.77 0.00 0.77 6.07% 1.17 -0.96 2.13 28 2.13 .
<br />0
<br />00 .
<br />2
<br />33
<br />Annual - 42.00 26.40 10.44 6.56 19.84 0.60 19.24 100% 19.24 9.17 17.14 17.14 .
<br />3.64 .
<br />15.26
<br />The shaded cells give actual depletions and actual required releases.
<br />[1] Exposed ground water surface azea is three acres. Original SWSP approved for 7.54 acres of exposed ground water.
<br />[2] Gross Evaporation Rate equals 42 inches (3.5 feet) per year, based upon NOAA Evaporation Atlas. Monthly distribution based upon SB-120 Guidelines.
<br />[3] Gross Evaporation equals [1] x [2] / 12 inches.
<br />[4] Effective Precipitation Rate equals 70% of total precipitation, based upon Longmont 2ESE weather station and NOAA Colorado Annual Average Precipitation 1951-1980 Map.
<br />[5] Effective Precipitation Credit equals [1) x [4] / 12 inches.
<br />[6] Net Evaporation equals [3) - [5].
<br />[7] Historical subirrigation credit as determined in original SWSP engineering, adjusted for reduced exposed ground water surface azea.
<br />[8] Pond evaporation replacement rquvement equals [6) - [7].
<br />[9] Lagging factors determined by running the Integrated Decision Support Alluvial Water Accounting System (IDS AWAS) using the data from the original SWSP and the depletions in column
<br /> [8].
<br />[ 10] Lagged site evaporation equals the total annual evaporative depletions at the bottom of column [8] x [9].
<br />[1 I] Last chance replacement credits based on original SWSP engineering.
<br />[ 12] Remaining replacement requirements equals [ 10] - [ 11 ] if greater than zero.
<br />[ 13] Number of days there is a call on the St. Vrain River or South Platte River below the Del Camino Pit.
<br />[ 14] Out-of-Priority Replacement Requirement is equal to the fraction of the Remaining Replacement Requirement that occurred when there was a call on the river below the Del Camino
<br /> Pit, equal to [ 12] " ([ 13] / # of days
<br />in month).
<br />[ 15] Required releases from Erger's Pit storage equals [ 14] « 1.135 to account for transit losses of 0.5% per mile over 27 miles (for September 2007 through April 2008). The September
<br /> 2007 through February 2008 required
<br />releases will be made with a slug release of 12.49 acre-feet in March 2008.
<br />[16] The St. Vrain lease volume equals [14] • 1.095 to account for transit losses of 0.5% per mile over 19 miles (for September 2008 through February 2009).
<br />B BA N:ba70 • B°MD°I CaminolDel Camino 1008 S WSP.aI~ Tebk 1
<br />~~ l ~~N'ilCt[CJfIFU1CXf1CJ B15HOP-BROCncn~ /t $.SOCJA7'f ,S, I;v C, 7/112008 S:IO PM lAK
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