2016-09-16_PERMIT FILE - M2016010

• Permit No: M2016010
• IBM Index Class Name: Permit File
• Doc Date: 9/16/2016
• Doc Name Note: Response #5
• Doc Name: Adequacy Review Response #5
• From: Transit Mix Concrete Co.
• To: DRMS
• Media Type: D
• Archive: No

Table A-3
Watershed Travel Time Determination
Hitch Rack Ranch Quarry Project, El Paso County, Colorado
Sub-Basin Initial /Overland Remaining Travel Urban Check
Data Time (UDFCD Eq 6-3) Time (UDFCD Eq 6-4) Total Total Final
Drainage Area C(5) Length Max. Elev. Min. Elev. Slope T; Length Max. Elev. Min. Elev. Slope Coeff. Velocity Tt Time* Length L/180+10 Velocity TC
Basin ac (ft) (ft) (ft) N (min) (ft) (ft) (ft) N Value (fps) (min) min ft(min) ( ) (min) (fps) (min)
Pre-Mine Conditions
N1 83.48 0.16 300 7870 7700 56.67 7.76 3192 7700 6965 23.03 5 2.40 22.17 29.93 3492 29.4 1.98 29.4
L1 37.08 0.16 300 7800 7705 31.67 9.40 2175 7705 7080 28.74 5 2.68 13.52 22.92 2475 23.8 1.74 22.9
B1 51.66 0.16 300 7820 7720 33.33 9.24 3266 7720 6955 23.42 5 2.42 22.49 31.74 3566 29.8 1.99 29.8
C1 51.67 0.16 300 7760 7590 56.67 7.76 2952 7590 6910 23.04 5 2.40 20.50 28.26 3252 28.1 1.93 28.1
01 46.86 0.16 300 7690 7570 40.00 8.70 2923 1 7570 6900 22.92 1 5 2.39 20.35 1 29.05 3223 27.9 1.92 27.9
E2 1 23.23 1 0.16 1 300 7445 1 7330 1 38.33 1 8.82 1689 1 7330 6950 22.50 5 2.37 11.87 20.69 1989 21.1 1.57 20.7
Disturbed Condtions
Phase I
Al 3.38 0.68 200 7140 7120 10.00 5.0 160 7120 7030 56.25 5 3.75 0.7 5.7 360 12.0 0.50 10.0
A2 19.37 0.31 290 7450 7300 51.72 6.6 1496 7300 7140 10.70 5 1.64 15.2 21.9 1786 19.9 1.49 19.9
B1 17.77 0.32 300 7380 7270 36.67 7.4 1530 7270 7000 17.65 5 2.10 12.1 19.6 1830 20.2 1.51 19.6
B2 39.64 1 0.16 235 7820 7710 46.81 7.3 2120 7710 7120 27.83 5 2.64 13.4 20.7 2355 23.1 1.70 20.7
C1 9.25 0.75 125 7100 7020 64.00 1.8 1300 7020 7010 0.77 5 0.44 49.4 51.2 1425 17.9 1.33 17.9
C2 10.62 0.26 250 7330 7240 36.00 7.3 1034 7240 7010 22.24 5 2.36 7.3 14.7 1284 17.1 1.25 14.7
C3 1.43 0.75 200 7015 7012 1.50 7.8 894 7012 7010 0.22 5 0.24 63.0 70.8 1094 16.1 1.13 16.1
C4 0.57 0.75 200 7015 7012 1.50 7.8 524 7012 7010 0.38 5 0.31 28.3 36.1 724 14.0 0.86 14.0
C5 43.27 1 0.20 400 7770 7550 1 55.00 8.7 1900 7550 7020 27.89 5 2.64 12.0 20.7 1 2300 22.8 1.68 20.7
D1 8.94 0.39 450 7250 6980 60.00 7.0 1351 6980 6940 2.96 5 1 0.86 26.2 33.2 1801 20.0 1.50 20.0
D2 1.66 0.56 225 7025 6980 20.00 5.4 521 6980 6940 7.68 5 1.39 6.3 11.7 746 14.1 0.88 11.7
D3 1.81 0.75 40 7015 7013 5.00 2.3 1700 7013 6940 4.29 5 1.04 27.3 29.7 1740 19.7 1.47 19.7
D4 0.45 0.75 40 6982 6980 5.00 2.3 531 6980 6940 7.53 5 1.37 6.4 8.8 571 13.2 0.72 10.0
E1 4.03 1 0.24 480 7200 6980 45.83 9.6 639 6980 6960 3.13 5 0.88 12.0 21.7 1119 16.2 1.15 16.2
E2 22.20 0.17 400 7450 7220 57.50 8.8 1566 7220 6960 16.60 5 2.04 12.8 21.6 1966 20.9 1.57 20.9
F1 5.30 0.40 490 7100 6975 25.51 9.6 2076 6975 6860 5.54 5 1.18 29.4 39.0 2566 24.3 1.76 24.3
F2 1.72 0.75 40 6982 6980 5.00 2.3 2107 6980 6860 5.70 5 1.19 29.4 31.8 2147 21.9 1.63 21.9
G1 6.37 0.34 500 7110 6940 34.00 9.6 705 6940 6900 5.67 5 1 1.19 9.9 19.4 1205 16.7 1.20 16.7
H1 11.01 0.29 180 6870 6850 11.11 8.9 3405 6850 6610 7.05 5 1.33 42.8 51.6 3585 29.9 2.00 29.9
H2 3.29 0.20 200 6720 6690 15.00 9.4 1260 6690 6610 6.35 5 1.26 16.7 26.1 1460 18.1 1.34 18.1
H3 2.80 0.74 40 6862 6860 5.00 2.4 3452 6860 6610 7.24 5 1.35 42.8 45.2 3492 29.4 1.98 29.4
H4 0.53 0.75 40 6630 6628 5.00 2.3 609 6628 6610 2.96 5 0.86 11.8 14.2 649 13.6 0.80 13.6
H5 0.51 0.75 40 6630 6628 5.00 2.3 590 6628 6610 3.05 5 0.87 11.3 13.6 630 13.5 0.78 13.5
11 1.67 0.74 40 6630 6628 5.00 2.4 2049 6628 6600 1.37 5 0.58 58.4 60.8 2089 21.6 1.61 21.6
12 0.89 0.73 40 6640 6638 5.00 2.5 738 6638 6600 5.15 5 1.13 10.8 13.3 778 14.3 0.91 13.3
13 1.67 0.74 40 6630 6628 5.00 2.4 2030 6628 6600 1.38 5 0.59 57.6 60.0 2070 21.5 1.60 21.5
14 0.94 0.73 40 6640 6638 5.00 2.5 738 6638 6600 5.15 5 1.13 10.8 13.3 778 14.3 0.91 13.3
J1 41.43 0.16 400 6810 6760 12.50 14.7 2855 6760 6590 5.95 5 1.22 39.0 53.7 3255 28.1 1.93 28.1
J2 27.20 0.11 400 6730 6710 5.00 21.0 2834 6710 6590 4.23 5 1.03 45.9 66.9 3234 28.0 1.93 28.0
N1 68.29 0.17 300 7870 7700 56.67 7.7 3192 7700 6965 23.03 5 2.40 22.2 29.8 3492 29.4 1.98 29.4
N2 26.36 0.34 300 7570 7434 45.33 6.8 1769 7434 7000 24.53 5 2.48 1 11.9 18.7 1 2069 21.5 1.60 18.7
01 46.86 0.17 300 7690 7570 40.00 8.61 2923 7570 1 6900 22.92 1 5 1 2.39 20.4 29.0 3223 27.9 1 1.92 27.9
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