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<br />Table 1
<br />Transit Mix - Grisenti Gravel Pits
<br />Actual/Projected Depletions from Mining Operation (2009-2011)
<br /> Production Dust Exposed Water Surface Total
<br /> Phase 1 Net Evap. Total Depletion
<br /> Mined Water Dust Gross Total Effective Net Settling Phase 1 & from Mining
<br /> Material Consumed Control Evaporation Precipitation Precipitation Evaporation Basin Area Settling Basin Operation
<br /> (x 1000 tons) (ac-ft) (ac-ft) (ft) (ft) (ft) (ft) (acres) (ac-ft) (ac-ft)
<br />Month
<br />May-09 1
<br />11.96 2
<br />0.35 131
<br />0.09 1 4
<br />0.45 5
<br />0.13 [61
<br />0.09 f7l
<br />0.36 8
<br />5.00 9
<br />1.80 10
<br />2.24
<br />Jun-09 1.7.50 0.51 0.33 0.55 0.10 0.07 0.49 5.00 2.43 3.28
<br />Jul-09 10.82 0.32 0.26 0.57 0.15 0.11 0.46 5.00 2.31 2.90
<br />Aug-09 10.36 0.30 0.29 0.51 0.16 0.11 0.40 5.00 1.98 2.57
<br />Sep-09 16.89 0.50 0.33 0.38 0.09 0.06 0.32 5.00 1.59 2.42
<br />Oct-09 11.42 0.34 0.18 0.26 0.07 0.05 0.21 5.00 1.06 1.57
<br />Nov-09 7
<br />65 0.23 0.01 0.15 0.06 0.04 0.11 5.00 0.54 0.78
<br />`
<br />Dec
<br />09 .
<br />35.22; 1104, ' 0.42 Q1,1'. 64
<br />0.03
<br />0.08
<br />1Q.Ol)
<br />0.84 .'
<br />2.30
<br />-
<br />Jan=10 21.79 0.64 " 042 0.11 _ 0.09 0:02 0.09' _`- 19.OQ 1.66 ' 2.73 ..
<br />Feb 10'" 17.17 Q.Sl 0 Q0 , 0;1,3 I 0.04 0:03 0'40;- 19.00 19Q; ; ? 2 89
<br />Mar 10 25.32 0:75 0.4? 0 21 0 08... ; 0.06. 1S, ? 19.00 - 2 92 09
<br />A' r-10 195(2 0:57 , t 41. `- 0:34 0:11 .',0:8 . 4.95
<br />_ ;
<br />5.93-,::
<br />09-10 Total 205.60 6.05 3.57 3.78 1.06 0.74 3.03 24.08 33.71
<br />lvlay-l0. 22.02 0 65 _ 0 42 0:45 0;1? 0:09 = 0 36 .? 11.00 • ", ' 6 $6> 7 93
<br />"
<br />10
<br />^'7iIn 21
<br />31 0 63' ' 0.4f . 0155 0.70 ` 0;67,
<br />-
<br />0 49,
<br />19.00
<br />: 9 23
<br />.10 ?
<br />T
<br />10 '
<br />]u1 .
<br />.
<br />?:. 22.02 0 b 642 .ti - 0.57. 0 15 ;; • 011 046,;, 19,.00 $ 7 .`_ 9 87 .'
<br />'
<br />.
<br />pup
<br />10 22
<br />03 0 65 , 0.42, ' ,
<br />0;51 0 16 '.? 041 OrW._ _ 19.Q0 ? 52 ;, 8 S9
<br />-
<br />.
<br />,
<br />Sep,10 .,
<br />.
<br />` 21.31',.
<br />069`
<br />0.41
<br />0.38
<br />0.09
<br />0.06
<br />0.32
<br />19,.Q0
<br />606,.
<br />"
<br />" 710
<br />a
<br />0'at-10 22
<br />02' 0,0: ` s 0'20' 0 ,QT 005 011 ; 19.00 -' 4.01' " 509
<br />Nov-10 .
<br />.
<br />21
<br />31 0.63. 0.41.•. - 0.1_;5 OOb. ? 0.04 Orll" 1900 .
<br />6ec=10 ;
<br />02
<br />22 = 0.65 ?• 0.42 0.11 0.04': ' 0.03 0.08' i. 19.00 1 6U 2 67
<br />t ti Ill .
<br />02
<br />22 .
<br />0165' 0.42,; 0.03. 0,02 0.09 , 19 00
<br />
<br />66 ,
<br />1
<br />i,1,
<br />
<br />
<br />? .
<br />2-7
<br />4
<br />,
<br />Fels-11 .
<br />60
<br />20 0 6
<br />1 0.13 004 ..-: 0;03 0,10' 1900 1 99 ; ; 2 99
<br />at?l l
<br />IVT .
<br />,
<br />22
<br />02 ,
<br />0 65, 0,42 0;21 0 0$ . 0:06 0 15 `• 19 00 292' ' 4 OQ
<br /> .
<br />1f 3'
<br />Al,"
<br />034,
<br />
<br />1
<br />
<br />19.pQ
<br />
<br />4.95 °°
<br />
<br />.
<br />
<br />S.?g••
<br />09-10 Total 26000 7.65 :5). l 3.78 .06 0.74 3.03 57.66 70.33
<br />Notes:
<br />'Actual depletions through November 2009, projected depletions are shaded (December 2009 through Apni 1u11).
<br />[11 Actual production provided by Transit Mix, projections based upon Transit Mix's projected maximum annual production.
<br />[2] Based upon 4 percent water loss by weight.
<br />[3] Actual dust control provided by Transit Mix. Projections based upon the annual total of previous monthly maximums spread out uniformly
<br />over the year.
<br />[4] Based upon NOAA Evaporation Atlas (45.4 inches per year), distributed monthly based upon State's SB-120 guidelines.
<br />[5] Based upon average monthly precipitation data from the NOAA Climate Data (Canon City, 1950 - 2003).
<br />[6] Effective Precipitation equals 70 percent of total precipitation, based upon the States' SB-120 guidelines, [5]' 0.7
<br />[7]- Net Evaporation equals Gross Evaporation less Effective Precipitation, [4] - [6].
<br />[8] Exposed water surface in settling pond is 5 acres or less prior to Dec 2009, and 19 acres or less after Dec 2009.
<br />[9] Equals [7] x [8].
<br />[10] Total Depletion equals [2] + [3] + [9].
<br />The mining area is in hydraulic connection and within 100 feet of the Blue Heron pit, which in turn is within 100 feet of the river. De-watering from the pit
<br />is assumed to be an instantaneous depletion to the river. Water pumped to the settling basin will be immediately returned to Brush Hollow Creek and
<br />allowed to flow naturally back to the River. Based upon this, evaporation losses from the settling basin are assumed to be an instantaneous depletion to the
<br />stream system.
<br />BBA C.%D -umdgmi.p&we6WD kwp%Gd=Li%SWSPram2009CHW.ab I-P.&Vd e
<br />?vater,nnaul?nn[n BISHOP-BROGOEN ASSOCIATES. INC. 1/412010 6:45PM AK
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