20230630_ESC_Calcs_80-32

SEDCAD 4 for Windows
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1
Keller Mining-Sand Mine & Recycle
Kannapolis, NC
MGE Proj , 220703.440
10 YR124 HR STORM
RECEIVED
?�(goEEs /0 JUN 3 9 20D
LAND QUALITY
139 3 MINING PROGRAM
• �HGIN�c��' .
Jerry L. Meade
MEADE GUNNELL engineering, PC
P.O. Box 790
Cornelius, NC 28031
Phone: [phone]
Email: [e-mail]
Filename: KellerSanditeRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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General Information
Storm Information:
Storm Type: MRCS Type II
Design Storm: 10 yr-24 hr
Rainfall Depth: 5.070 inches
Particle Size Distribution:
Size(mm) S-2
9.5000 100.000%
4.7500 97.000%
2.0000 64.700%
0.4250 54.000%
0.1500 36.700%
0.0750 29.000%
0.0184 20.700%
0.0056 15.600%
0.0012 14,400%
Filename:KellerSandMineRl.sc4 Printed 05-29-2023

Particle Size Analysis
CD
c c c c = _ 0 00 0 0 fo�pp a v 0
fD P7 N r r � � 1 3t # ,�C
100
I I I I I 11 I I I I I
so
I I I I I I I I I I I I I
80
I I I I I I I I I I I I I I
70
I I I I I l i I I f l l l l
W I I I I I I I I I I
Z so
I I I I I I I I I I I I
u-
Z 50
w I I I I I I I I I I1 I I
w 40 I I I I I I I I I I N I I I
CL I I 1 1 1 I ! I I
30
I I I I I l i
( I I I I I l I I I I I I
20
10 I I I I I 1 1 f I I I I I
I I I I I I f I
a
100 10 1 0.1 0.01 0.001
GRAIN SIZE-mm.
*3„ %Gravel %Sand %Fines
Coarse Fine Coarse Medium Fine Silt Clay
0.0 0.0 3.0 32.1 10.9 25.0 13.6 15.4
SIEVE PERCENT SPEC. PASS? Material Description
SIZE FINER PERCENT (X=NO) Yellowish red,silty clayey SAND
3/8" 100.0
#4 97.0
#10 64.9
#40 4. Atterberg Limits
#100 36.7 PL= LL= P1=
#200 29.0 Coefficients
.0386 mm. 25.2 D90= 3.7810 D85= 3.3288 D60= 0.7451
.0281 mm. 23.2 D50= 0.3094 D30= 0.0854 D15= 0.0023
.0184 mm. 20.7 D10= Cu= Cc=
.0109 mm. 18.8 Classification
.0079 mm. 16.9 USCS= SC-SM AASHTO=
.0056 mm. 15.6
.0028 mm. 15.1 Remarks
.0012 mm. 14.4 Sample delivered to KEG by Mr.Jerry Meade,P.E.with
Meade Gunnell Engineering.
(no specification provided)
Source of Sample:Keller Mining
Sample Number:S-2 Date: 11/18/2022
Kessel Engineering Group Client: Meade Gunnell Engineering
Project: Meade Pit Study
Project No: JM22-4547-01 Figure

SEDCAD 4 for Windows
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Structure Networking:
Type Stru (flows Stru Musk.K Musk.X Description
# into) # (hrs)
Pond #1 #2 0.000 0.000 P-1
Pond #2 =_> #3 0.000 0.000 P-2
Pond #3 =_> End 0.000 0.000 P-3
#1
Pond
4 #2
Pond
#3
Pond
Filename:KellerSandMineR1.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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Structure Summary:
Immediate Total Peak Total I Peak Peak
Contributing Contributing Runoff Sediment Sediment Settleable 24VW
Area Area Discharge Volume (tons) Conc. Conc.
(ac) (ac) ( S) (ac-ft) (mg/1) (ml/1)
#1
In I1.700 11.700 38.23 3.46 80.8 33,768 21.92 11.05
Out 14.44 3.62 13.3 4,062 0.06 0.04
In 17.05 3.85 13.3 3,916 0.05 0.04
#2 0.800 12.500
Out 9.52 3.55 11.9 3,113 0.00 0.00
#3
In 24.900 37.400 75.59 10.68 61.3 9,758 5.09 2.39
Out 6.62 5.08 10.4 1,853 0.00 0.00
Filename:KellerSandMineR1.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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Particle Size Distribution(s) at Each Structure
Structure #1 (P-1).
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 97.021% 100.000%
2.0000 64.714% 100.000%
0.4250 54.012% 100.000%
0.1500 36.708% 100.000%
0.0750 29.006% 100.000%
0.0184 20.705% 100.000%
0.0056 15.603% 95.174%
0.0012 14.403% 87.853%
Structure #2 (P-2):
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 100.000% 100.000%
2.0000 100.000% 100.000%
0.4250 100.000% 100.000%
0.1500 100.000% 100.000%
0.0750 100.000% 100.000%
0.0184 100.000% 100.000%
0.0056 95.182% 100.000%
0.0012 87.873% 97.905%
Structure #3:
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 98.058% 100.000%
2.0000 72.023% 100.000%
0.4250 63.327% 100.000%
0.1500 49.266% 100.000%
0.0750 43.008% 100.000%
Filename:KellerSandMineR1.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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Size(mm) In Out
0.0184 36.262% 100.000%
0.0056 32.117% 100.000%
0.0012 30.735% 100.000%
Filename:KelierS and Mine Rl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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Structure Detail;
Structure #1 (Pondl
P-1
Pond Inputs:
Initial Pool Elev: 769.00 ft
Initial Pool: 0.09 ac-ft
*Sediment Storage: 0.33 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser - Barrel Number of
Diameter Riser Height Diameter Barrel *I Slope Mann ing's n Spillway Elev Hales per
(in) (ft) (In) Length(ft) (/o) (ft) Elev
24.00 3.001 18.00 128.00 0.751 0.0150 770.00 4
Floating Siphon
Crest Elev Inlet Elev Outlet Elev DI(Ime)ter Length(ft) Manning's n
772.00 769.00 767.50 2.00 100.00 0.0140
Pond Results:
Peak Elevation: 771.77 ft
H'graph Detention Time: 3.30 hrs
Pond Model: CSTRS
Dewater Time: 1.07 days
Trap Efficiency: 83.61%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (ds) (hrs)
768.74 0.339 0.000 0.000 Top of Sed.Storage
769.00 0.360 0.090 0.000 Low hole SPW#1
769.50 0.404 0.281 0.363 6.36*
770.00 0.450 0.495 0.495 7.25 Spillway#1
770.50 0.501 0.732 6.970 10.90
Filename:KellerSandMineR1.so4 Printed 05-29-2023

SEDCAD 4 for Windows
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Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (ds) (hrs)
771.00 0.555 0.996 13.430 0.45
771.50 0.611 1.287 14.093 0.40
771.77 0.644 1.463 14.441 0.40 Peak Stage
772.00 0.670 1.607 14.726 Spillway#2
772.50 0.685 1.946 15.334
773.00 0.700 2.292 15.918
Detailed Discharge Table
Combined
Elevation Perf. Riser(ds) Floating Siphon Total
(ft) (cfs) Discharge
(cfs)
768.74 0.000 0.000 0.000
769.00 2.00>0.000 0.000 0.000
769.50 0.297 0.066* 0.363
770.00 0.420 0.075* 0.495
770.50 6.886 0.083* 6.970
771.00 13.339 0.091* 13.430
771.50 13.995 0.098* 14.093
772.00 14.622 0.105 14.726
772.50 15.223 0.111 15.334
773.00 15.801 0.117 15.918
Structure #2 Pond)
P-2
Pond Inputs:
Initial Pool Elev: 766.50 ft
Initial Pool: 0.15 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Riser Height Barrel Barrel Barrel Slope Spillway Elev Number of
Diameter (ft) Diameter Length(ft) (0/0) Manning's n (ft) Holes per
(In) (In) Elev
24.00 5.001 18.00 220.00 0.50 0.0150 770.00 2
Filename:KellerSandMineR1.sc4 Printed 05-29-2023

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SEDCAD 4 for Windows
rnn%t inht 1oaR_,)nin Pamni:% I Crhurah
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Riser Riser Height Barrel Barrel Slope Spillway Barrel S illwa Elev Humber of
Diameter (ft) Diameter Length(ft) (%) Manning s n (ft) Holes per
(in) (in) Elev
24.00 5.00 18.00 220.00 0.501 0.0150 770.00 2
Pond Results:
Peak Elevation: 770.70 ft
H'graph Detention Time: 6.35 hrs
Pond Model: CSTRS
Dewater Time: 2.25 days
Trap Efficiency: 10.25%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.00 0.000 0.000 0.000 Top of Sed.Storage
765.50 0.043 0.007 0.000
766.00 0.170 0.057 0.000
766.50 0.209 0.151 0.000 Low hole SPW#1
767.00 0.252 0.266 0.149 9.37*
767.50 0.299 0.404 0.210 7.92*
768.00 0.350 0.566 0.406 4.83*
768.50 0.369 0.746 0.507 6.05
769.00 0.389 0.935 0.738 5.50
769.50 0.409 1.135 0.871 5.45
770.00 0.430 1.345 0.983 8.40 Spillway#1
770.50 0.449 1.564 6.886 5.95
770.70 0.457 1.656 9.516 0.60 Peak Stage
771.00 0.469 1.794 13.496
771.50 0.489 2.034 13.963
772.00 0.510 2.283 14.415
772.50 0.554 2.549 14.854
773.00 0.600 2.838 15.279
*Designates times)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
Filename:KellerSandMineR1.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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10
Combined
Elevation Total
Pert. Riser(cfs)
(ft) Discharge
(cfs)
765.00 0.000 0.000
765.50 0.000 0.000
766.00 0.000 0.000
766.50 2.00>0.000 0.000
767.00 0.149 0.149
767.50 2.00>0.210 0.210
768.00 0.406 0.406
768.50 2.00>0.507 0.507
769.00 0.738 0.738
769.50 0.871 0.871
770.00 0.983 0.983
770.50 6.BB6 6.886
771.00 13.496 13.496
771.50 13.963 13.963
772.00 14.415 14.415
772.50 14.854 14.854
773.00 15.279 15.279
Structure #3(Pond1
P-3
Pond Inputs:
Initial Pool Elev: 766.00 ft
Initial Pool: 0.51 ac-ft
*Sediment Storage: 0.63 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter Riser Height Diameter Barrel Barren Slope Manning's n Spillway Elev Holes per
(in) (ft) (in) Length(ft) (/o) (ft) Elev
36.00 7.001 18.00 100.00 1.00 0.0150 771.50 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Diameter Length(ft) Manning's n
(In)
772.00 766.00 763.00 2.00 100.00 0.0140
Filename:KellerSandMineRl.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
!`nnrrinhllQQq_9M11 P�mola I Crhurah
11
Pond Results:
Peak Elevation: 771.81 ft
H'graph Detention Time: 7.19 hrs
Pond Model: , CSTRS
Dewater Time: 20.50 days
Trap Efficiency: 83.08%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacitor-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.32 0.630 0.000 0.000 Top of Sed.Storage
765.50 0.688 0.119 0.000
766.00 0.870 0.508 0.000
766.50 0.909 0.952 0.091 59.21*
767.00 0.948 1.417 0.098 57.31*
767.50 0.989 1.901 0.105 55.92*
768.00 1.030 2.405 0.111 54.90* Low hole SPW#1
768.50 1.071 2.931 0.154 41.16*
769.00 1.113 3.477 0.176 37.63*
769.50 1.156 4.044 0.193 35.57*
770.00 1.200 4.633 0.208 34.20*
770.50 1.241 5.244 0.260 28.45*
771.00 1.284 5.875 0.288 26.52*
771.50 1.326 6.527 0.312 25.30* Spillway#1
771.81 1.354 6.945 6.615 35.05 Peak Stage
772.00 1.370 7.201 10.484 Spillway#2
772.50 1.459 7.908 19.326
773.00 1.550 8.660 19.856
*Designates time(s)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Detailed Discharge Table
Combined
Elevation Floating Siphon Total
Perf.Riser(cfs)
(ft) (cfs) Discharge
(cfs)
765.32 0.000 0.000 0.000
765.50 0.000 0.000 0.000
I 766.00 0.000 0.000 0.000
766.50 0.000 0.000 0.091
f
Printed 05-29-2023
Filename:KellerSandMineR1.sc4
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SEDCAD 4 for Windows
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Combined
Elevation Perf.Riser(cfis) Floating Siphon Total
Ut) (cfs) Discharge
(cfs)
767.00 0.000 0.000 0.098
767.50 0.000 0.000 0.105
768.00 1.00>0.000 0.000 0.111
768.50 0.037 0.000 0.154
769.00 0.053 0.000 0.176
769.50 0.064 0.000 0.193
770.00 1.00>0.074 0.000 0.208
770.50 0.120 0.000 0.260
771.00 0.143 0.000 0.288
771.50 0.163 0.000 0.312
772.00 10.330 0.000 10.484
772.50 19.167 0.000 19.326
773.00 19.692 0.000 19.856
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i
Printed 05-29-2023
Filename:KellerSandMineR1.sc4

SEDCAD 4 for Windows
13
Subwatershed Hydrology Detail;
SWS Area Time of Musk K Curve Peak Runoff
Stru SWS Conc Musk UHS Discharge Volume
# # (ac) (hrs) (hrs) Number (cfs) (ac-ft)
#1 1 0.600 0.001 0.096 0.242 91.000 TR55 2.19 0.202
2 7.500 0.115 0.000 0.000 91.000 TR55 27.39 2.529
3 3.600 0.093 0.092 0.267 74.000 TR55 9.30 0.725
71 11.700 38.23 3.456
#2 1 0.800 0.001 0.123 0.231 86.000 TR55 2.71 0.235
E 12.500 17.05 3.853
#3 1 2.100 0.092 0.060 0.307 91.000 TR55 7.67 0.708
2 13.200 0.118 0.000 0.000 91.000 TR55 48.21 4.452
3 9.600 0.163 0.091 0.267 74.000 TR55 22.95 1.966
37,400 75.59 10.679
Subwatershed SedimentologyDetail:
Peak Peak
Sediment Sediment Settleable 24VW
S#u S#S Soil K L(ft) S(%) C P PS# Conc. Conc
(tons) (ml/I)
(mg/1) (ml/I)
#1 1 0.170 50.00 33.00 0.4500 1.0000 1 17.8 115,013 74.65 40.70
2 0.170 100.00 5.00 0.4500 1.0000 1 48.2 25,050 16.26 9.02
3 0.240 100.00 5.00 0.3600 1.0000 1 14.8 28,583 18.55 9.64
E 80.8 33,768 21.92 11.05
#2 1 0.170 50.00 33.00 0.4500 1.0000 1 21.9 120,331 78.10 42.83
E 13.3 3,916 0.05 0.04
#3 1 0.240 100.00 5.00 0.0820 1.0000 1 3.0 5,658 3.67 2.01
2 0.170 100.00 2.00 0.4500 1.0000 1 36.7 10,904 7.08 3.92
3 0.240 100.00 5.00 0.0820 1.0000 1 9.7 6,816 4.38 2.32
1 61.3 9,758 5.09 2.39
Subwatershed Time of Concentration Details;
Stru SWS Land Flow Condition Slope(%) Vert. Dist. Horiz. Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 1 5.Nearly bare and untilled,and 50.00 24.00 48.00 7.070 0.001
alluvial valley fans
#1 1 Time of Concentration: 0.001
Filename:KellerSandMineRt.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
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14
Stru SWS Land Flow Condition Slope(%) Vert.Dist. Horiz.Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 2 5.Nearly bare and untilled,and 2.46 16.00 650.00 1.560 0.115
alluvial valley fans
#1 2 Time of Concentration: 0.115
#1 3 3.Short grass pasture 5.32 33.00 620.00 1.840 0.093
#1 3 Time of Concentration: 0.093
#2 1 5.Nearly bare and untitled,and 5.33 32.00 600.00 2.300 0.072
alluvial valley fans
#2 1 Time of Concentration: 0.001
#3 1 3.Short grass pasture 5.67 36.00 635.00 1.900 0.092
#3 1 Time of Concentration: 0.092
#3 2 S.Nearly bare and untilled,and 2.00 12.00 600.00 1.410 0.118
alluvial valley fans
#3 2 Time of Concentration: 0.118
#3 3 2.Minimum tillage cultivation 4.72 30.00 635.00 1.080 0.163
#3 3 Time of Concentration: 0.163
subwatershed Muskingum Routing Details:
Stru SWS Land Flow Condition Slope(%) Vert.Dist. Horiz.Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 1 5.Nearly bare and untilled,and 2.55 14.00 550.00 1.590 0.096
alluvial valley fans
#1 1 Muskingum K: 0.096
#1 3 5.Nearly bare and untitled,and 32.73 18.00 55.00 5.720 0.002
alluvial valley fans
5.Nearly bare and untilled,and 2.40 12.00 500.00 1.540 0.090
alluvial valley fans
#1 3 Muskingum K: 0.092
#2 1 S.Nearly bare and untilled,and 2.33 14.00 600.00 1.520 0.109
alluvial valley fans
#2 1 Muskingum K: 0.123
#3 1 S.Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5.Nearly bare and untilled,and 5.86 30.00 510.00 2.420 0.058
alluvial valley fans
#3 1 Muskingum K: 0.060
#3 3 5.Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
S.Nearly bare and untilled,and 2.55 13.00 510.00 1.590 0.089
alluvial valley fans
#3 3 Muskingum K: 0.091
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Filename:KellerSandMineR1.sc4 Printed 05-29-2023

P-1
773
772 : . . . : . . . : . . . : . . . : . . . . . . . : . . . . . . : . . . . : . .
� 771 . . . . . . . . . .
770 T rL� i
.769 C D:. . . . . . . .768 . .:. . . .:. . . . . . . . . .767
0.0 0.2 0.4 0.6 0.8 1 .0 1 .2 1 .4 1 .6 1 .8 2.0 2.2 2.4 2.6 2.8
Capacity (ac-ft)
i

P-21
773
772 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
771 . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .
770 of �isf2
0
= 769 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-2 768 .. . . . . . . . . . . . . . . . . . . . . . . * . . . . . . . . . . . . .
ui
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
767 . . . . . . . .
766 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .
765
0.0 1 .0 2.0 3.0
Capacity (ac-ft)

P-3
774
772 . . . . . . . . . . . .o . -lsEQ . . . . . . . . . . . . . . . . . . . . . :. . . . . . : . . . . . .
.
770 . . . . . . . . . . . ... . . . . . . . . . . . .. . . . . . . ..
o
768 . . . . . ... . . . . .:. . . . . . . . . . . . . . . . . . . . . . . .:. . . . . . :. . . . . . . . . . . .
W
766 ;G1 . : . . . . . . . . . . . . . . . ; . . . . . ... . . . . . . . . . . . ; . . . . . .
p
764 . . . . . . . . . ... . . . . . . . . . . . .. . . . . ... . . . . . . . . . . . . . . . . . . . . . . . .
0 1 2 3 4 5 6 7 8 9 10
Capacity (ac-ft)

SEDCAD 4 for Windows
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Keller MiningmSand
Mine & Recvcle
Kannapolis, Nc
MGE Pro '. 220703.440
25 YR124 HR STORM
Jerry L. Meade
MEADE GUNNELL engineering, PC
P.O. Box 790
Cornelius, NC 28031
Phone: [phone]
Email: [e-mail]
Filename:KellerSandMine25yr=4 Printed 05-29-2023

SEDCAD 4 for Windows
f:nn%trinhf 10QA_,>mn Pamola l Cnh%AlMh 2
General Information
Storm Information:
Storm Type: MRCS Type II
Design Storm: 25 yr-24 hr
Rainfall Depth: 6.010 inches
Particle Size Distribution:
Size(mm) S-2
9.5000 100.000%
4.7500 97.000%
2.0000 64.700%
0.4250 54.000%
0.1500 36.700%
0.0750 29.000%
0.0184 20.700%
0.0056 15.600%
0.0012 14.400%
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
r:nrnirinh4 1OOR-,;nin Pamoln I CrhlAlQh
3
Structure Networking;
Type Stru (flows Stru Musk.K Musk.X Description
# Into) # (hrs)
Pond #1 =_> #2 0.000 0.000 P-1
Pond #2 =_> #3 0.000 0.000 P-2
Pond #3 =_> End 0.000 0.000 P-3
1�f #x
Pond
#2
Pond
#3
Pond
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
r.nrwrinht i aan-7ni n Pamela I Crh%Amh A
Structure Summary:
Immediate Total Peak Total Peak Peak
Contributing Contributing Discharge Runoff Sediment Sediment Settleable 24VW
Area Area Volume (tons) Conc. Conc. (mijl)
(ac) (ac) (cfs) (ac-ft) (mg/1) (ml/l)
In 46.89 4.31 102.0 33,942 22.03 11.19
#1 11.700 11.700
Out 16.47 4.26 16.8 4,193 0.06 0.05
In 19.64 4.55 16.8 4,023 0.06 0.04
#2 Out 0.800 12.500
13.02 4.26 15.3 3,309 0.00 0.00
In 93.82 13.19 77.8 10,006 5.21 2.45
#3 Out 24.900 37.400
15.74 7.17 15.9 1,938 0.00 0.00
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

• T
SEDCAD 4 for Windows
r:nmosinhi 9QQR_9M/1 Parnmin I Cf-himah
5
Particle Size Distribution(s) at Each Structure
Structure #Y (P-1):
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 97.022% 100.000%
2.0000 64.715% 100.000%
0.4250 54.012% 100.000%
0.1500 36.708% 100.000%
0.0750 29.007% 100.000%
0.0184 20.705% 100.000%
0.0056 15.604% 94.932%
0.0012 14.403% 87.630%
Structure #2 (P-2):
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 100.000% 100.000%
2.0000 100.000% 100.000%
0.4250 100.000% 100.000%
0.1500 100.000% 100.000%
0.0750 100.000% 100.000%
0.0184 100.000% 100.000%
0.0056 94.941% 100.000%
0.0012 87.650% 96.248%
Structure #3:
Size(mm) In Out
9.5000 100.000% 100.000%
I
4.7500 98.098% 100.000%
i
2.0000 72.030% 100.000%
0.4250 63.369% 100.000%
I
0.1500 49.366% 100.000%
E
0.0750 43.133% 100.000%
i
Printed 05-29-2023
Filename:KellerSandMine25yr.sc4
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SEDCAD 4 for Windows
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7
Structure Detail;
Structure #1 (Pond)
P-1
Pond Inputs:
Initial Pool Elev: 769.00 ft
Initial Pool: 0.09 ac-ft
*Sediment Storage: 0.33 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter Riser Height Diameter Barrel Barrel Slope Manning's n Spillway Elev Holes per
(in) (ft) (in) Length(ft) (%) (ft) Elev
24.00 3.00 18.00 128.00 0.75 0.0150 770.00 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Di(me)ter Length(ft) Manning's n
772.00 769.00 767.50 2.00 100.00 0.0140
Emergency Soillwav
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
772.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 772.32 ft
H'graph Detention Time: 2.67 hrs
Pond Model: CSTRS
Dewater Time: 1.39 days
Trap Efficiency: 83.56%
Dewatenng time is calculated from peak stage to lowest spillway
Elevation-Capad!)LDischarge Table
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
en,w.u,n�+oan_omnoomd� i s�M.on
8
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
768.74 0.339 0.000 0.000 Top of Sed.Storage
769.00 0.360 0.090 0.000 Law hole SPW#1
769.50 0.404 0.281 0.215 10.75*
770.00 0.450 0.495 0.285 10.35 Spillway#1
770.50 0.501 0.732 6.970 10.70
771.00 0.555 0.996 13.430 0.45
771.50 0.611 1.287 14.093 0.35
772.00 0.670 1.607 14.726 0.45 Spillway#2
Spillway#3
772.32 0.672 1.825 16.470 0.40 Peak Stage
772.50 0.685 1.946 17.440
773.00 0.700 2.292 46.011
Detailed Discharge Table
Combined
Elevation Perf. Riser(cfs) Floating Siphon Emergency Total
(ft) (cfs) Spillway(cfs) Discharge
(cfs)
768.74 0.000 0.000 0.000 0.000
769.00 2.00>0.000 0.000 0.000 0.000
769.50 0.149 0.066* 0.000 0.215
770.00 0.210 0.075* 0.000 0.285
770.50 6.886 0.083* 0.000 6.970
771.00 13.339 0.091* 0.000 13.430
771.50 13.995 0.098* 0.000 14.093
772.00 14.622 0.105 0.000 14.726
772.50 15.223 0.111 2.106 17.440
773.00 15.801 0.117 30.093 46.011
Structure #2(Ponds
P-2
Pond Inputs:
Initial Pool Elev: 766.50 ft
Initial Pool: 0.15 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00%
*5ed1ment capacity was entered by user
Perforated Riser
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
f`nnurinht 1 QGR-9nI n Pomo17 I CrhMroh
9
Riser g Barrel Number of
Riser Height Barrel Barrel Slope Ss n (p }Spillway Elev
Diameter (ft) Diameter Length(ft) (7o Mannin ft Holes per
(in) (in) o ) Elev
24.00 5.00 18.00 220.00 0.50 0.0150 770.00 2
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
771.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 770.96 ft
Kgraph Detention Time: 5.23 hrs
Pond Model: CSTRS
Dewater Time: 2.20 days
Trap Efficiency: 8.93%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (dfs) (hrs)
765.00 0.000 0.000 0.000 Top of Sed.Storage
765.50 0.043 0.007 0.000
766.00 0.170 0.057 0.000
766.50 0.209 0.151 0.000 Low hole SPW#1
767.00 0.252 0.266 0.149 9.37*
767.50 0.299 0.404 0.210 7.92*
768.00 0.350 0.566 0.406 4.83*
768.50 0.369 0.746 0.507 6.60
769.00 0.389 0.935 0.738 5.60
769.50 0.409 1.135 0.871 4.35
770.00 0.430 1.345 0.983 7.00 Spillway#1
770.50 0.449 1.564 6.886 6.20
770.96 0.468 1.778 13.024 0.90 Peak Stage
771.00 0.469 1.794 13.496 Spillway#2
771.50 0.489 2.034 16.069
772.00 0.510 2.283 44.508
772.50 0.554 2.549 80.830
773.00 0.600 2.838 128.194
*Designates time(s)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Filename:KellerS and Mine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
rn-Hnh,toes_onln P-tu 1 R,6umh
10
Detailed Discharge Table
Combined
Elevation Emergency Total
(ft) Perf.Riser(cfs) Spillway(cis) Discharge
(cis)
765.00 0.000 0.000 0.000
765.50 0.000 0.000 0.000
766.00 0.000 0.000 0.000
766.50 2.00>0.000 0.000 0.000
767.00 0.149 0.000 0.149
767.50 2.00>0.210 0.000 0.210
768.00 0.406 0.000 0.406
768.50 2.00>0.507 0.000 0.507
769.00 0.738 0.000 0.738
769.50 0.871 0.000 0.871
770.00 0.983 0.000 0.983
770.50 6.886 0.000 6.886
771.00 13.496 0.000 13.496
771.50 13.963 2.106 16.069
772.00 14.415 30.093 44.508
772.50 14.854 65.976 80.830
773.00 15.279 112.915 128.194
Structure #3(Pond)
P-3
Pond Inputs:
Initial Pool Elev: 766.00 ft
Initial Pool: 0.51 ac-ft
*Sediment Storage: 0.63 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter Riser(ft)
Diameter Baelft Barre�l*Slope Manning's n Spillway Elev Holes per
(In) ( ) (In) Length( ) ( ) ( ) Elev
36.00 7.001 18.00 100.00 1.00 0.0150 771.50 2
Floating Siphon
Crest Elev Inlet Elev Outlet Elev Diameter Length(ft) Manning's n
(in)
772.00 766.00 763.00 2.00 100.00 0.0140
Filename:KelierSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
(tnnutinhl 1 QOR_OfN n Pomcin i QPhuroh
11
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
772.00 10.00 3.00:1 3.00:1 20.00
Pond Results:
Peak Elevation: 772.20 ft
H'graph Detention Time: 4.21 hrs
Pond Model: CSTRS
Dewater Time: 20.44 days
Trap Efficiency: 79.58%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) ffs) (hrs)
765.32 0.630 0.000 0.000 Top of Sed.Storage
765.50 0.688 0.119 0.000
766.00 0.870 0.508 0.000
766.50 0.909 0.952 0.091 59.21*
767.00 0.948 1.417 0.098 57.31*
767.50 0.989 1.901 0.105 55.92*
768.00 1.030 2.405 0.111 54.90* Low hole SPW#1
768.S0 1.071 2.931 0.154 41.16*
769.00 1.113 3.477 0.176 37.63*
769.50 1.156 4.044 0.193 35.57*
770.00 1.200 4.633 0.208 34.20*
770.50 1.241 5.244 0.260 28.45*
771.00 1.284 5.875 0.288 26.52*
771.50 1.326 6.527 0.312 25.30* Spillway#1
772.00 1.370 7.201 10.484 33.05 Spillway#2
Spillway#3
772.20 1.419 7.487 15.735 1.30 Peak Stage
772.50 1.459 7.908 23.471
773.00 1.550 8.660 75.399
*Designates time(s)to dewater have been extrapolated beyond the 50 hour hydrograph limit:
Detailed Discharge Table
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
r:nroninht 1 PQR_*mi n Pomola I Crrh%At*h
12
Combined
Elevation Floating Siphon Emergency Total
ft Perf.Riser(cfs) Spillway( ) (cfs) (cfs) Discharge
(cfs)
765.32 0.000 0.000 0.000 0.000
765.50 0.000 0.000 0.000 0.000
766.00 0.000 0.000 0.000 0.000
766.50 0.000 0.091* 0.000 0.091
767.00 0.000 0.098* 0.000 0.098
767.50 0.000 0.105* 0.000 0.105
768.00 1.00>0.000 0.111* 0.000 0.111
768.50 0.037 0.117* 0.000 0.154
769.00 0.053 0.123* 0.000 0.176
769.50 0.064 0.129* 0.000 0.193
770.00 1.00>0.074 0.134* 0.000 0.208
770.50 0.120 0.139* 0.000 0.260
771.00 0.143 0.144* 0.000 0.288
771.50 0.163 0.149* 0.000 0.312
772.00 10.330 0.154 0.000 10.484
772.50 19.167 0.159 4.145 23.471
773.00 19.692 0.164 55.544 75.399
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
13
Subwatershed Hydrology Detail;
SWS Area Time of Musk K Curve Peak Runoff
#S SWS Conc Musk X UHS Discharge Volume
# # (ac) (hrs) (hrs) Number (cfs) (ac-ft)
#1 1 0.600 0.001 0.096 0.242 91.000 TR55 2.64 0.248
2 7.500 0.115 0.000 0.000 91.000 TP55 32.97 3.102
3 3.600 0.093 0.092 0.267 74.000 TR55 11.99 0.957
E 11.700 46.89 4.307
#2 1 0.800 0.001 0.123 0.231 86.000 TR55 3.32 0.294
E 12.500 19.64 4.554
#3 1 2.100 0.092 0.060 0.307 91.000 TR55 9.23 0.868
2 13.200 0.118 0.000 0.000 91.000 TR55 58.03 5.460
3 9.600 0.163 0.091 0.267 74.000 TR55 30.06 2.594
37.400 93.82 13.186
Subwatershed Sedimentology Detail.-
Peak Peak
Stru SWS Soil K L(ft) S(%) C P PS# Sediment Sediment Settleable 24VW
# # (tons) Conc. Conc (ml/I)
(mg/1) (ml/l)
#1 1 0.170 50.00 33.00 0.4500 1.0000 1 22.2 116,831 75.83 41.22
2 0.170 100.00 5.00 0.4500 1.0000 1 60.0 25,422 16.50 9.15
3 0.240 100.00 5.00 0.3600 1.0000 1 19.9 28,780 18.68 9.84
102.0 33,942 22.03 11.19
#2 1 0.170 50.00 33.00 0.4500 1.0000 1 27.8 122,038 79.21 43.37
1 16.8 4,023 0.06 0.04
#3 1 0.240 100.00 5.00 0.0820 1.0000 1 3.7 5,748 3.73 2.03
2 0.170 100.00 2.00 0.4500 1.0000 1 45.7 11,067 7.18 3.98
3 0.240 100.00 5.00 0.0820 1.0000 1 13.1 6,965 4.48 2.39
77.8 10,006 5.21 2.45
Subwatershed Time of Concentration Details:
Stru SWS Vert.Dist. Horiz.Dist. Velocity Time(hrs)
# # Land Flaw Condition Slope(Mo) (ft) (ft) (fps)
#1 1 5.Nearly bare and untilled,and 50.00 24.00 48.00 7.070 0.001
alluvial valley fans
#1 1 Time of Concentration: 0.001
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for Windows
r`nrrnirinhl loon_inin oamnla I Crhumh
14
Stru SWS Land Flow Condition Slope(%) Vert.Dist. Horiz.Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 2 5.Nearly bare and untilled,and 2.46 16.00 650.00 1.560 0.115
alluvial valley fans
#1 2 Time of Concentration: 0.115
#1 3 3.Short grass pasture 5.32 33.00 620.00 1.840 0.093
#1 3 Time of Concentration: 0.093
#2 1 S.Nearly bare and untilled,and 5.33 32.00 600.00 2.300 0.072
alluvial valley fans
#2 1 Time of Concentration: 0.001
#3 1 3.Short grass pasture 5.67 36.00 635.00 1.900 0.092
#3 1 Time of Concentration: 0.092
#3 2 S.Nearly bare and untilled,and 2.00 12.00 600.00 1.410 0.118
alluvial valley fans
#3 2 Time of Concentration: 0.118
#3 3 2.Minimum tillage cultivation 4.72 30.00 635.00 1.080 0.163
#3 3 Time of Concentration: 0.163
Subwatershed Muskingum Routing Details.
Stru SWS Vert.Dist. Horiz.Dist. Velocity
# # Land Flow Condition Slope{%) (ft) (ft) (fps) Time(hrs)
#1 1 5.Nearly bare and untilled,and 2.55 14.00 550.00 1.590 0.096
alluvial valley fans
#1 1 Muskingum K: 0.096
#1 3 S.Nearly bare and untilled,and 32.73 18.00 55.00 5.720 0.002
alluvial valley fans
5.Nearly bare and untilled,and 2.40 12.00 500.00 1.540 0.090
alluvial valley fans
#1 3 Muskingum K: 0.092
#2 1 5.Nearly bare and untilled,and 2.33 14.00 600.00 1.520 0.109
alluvial valley fans
#2 1 Muskingum K: 0.123
#3 1 5.Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
S.Nearly bare and untilled,and 5.88 30.00 510.00 2.420 0.058
alluvial valley fans
#3 1 Muskingum K: 0.060
#3 3 5. Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5.Nearly bare and untilled,and 2.55 13.00 510.00 1.590' 0.089
alluvial valley fans
#3 3 Muskingum K: 0.091
Filename:KellerSandMine25yr.sc4 Printed 05-29-2023

SEDCAD 4 for windows
f:ntt«rinhf 404A_7f11A P�mcl� 1 Crhuofi
Keller MininqmSand Mine & Recvcle
Kannapolis, Nc
MGE Pro '. 220703.440
50 YR124 HR STORM
Jerry L. Meade
MEADE GUNNELL engineering, PC
P.O. Box 790
Cornelius, NC 28031
Phone: [phone]
Email: [e-mail]
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
f nrnsrinh4 1 QQR-,)nl n Pamnfa 1
2
General.Information
Storm .Information:
Storm Type: NRCS Type II
Design Storm: 50 yr-24 hr
Rainfall Depth: 6.770 inches
Particle Size Distribution:
Size(mm) S-2
9.5000 100.000%
4.7500 97.000%
2.0000 64.700%
0.4250 54.000%
0.1500 36.700%
0.0750 29.000%
0.0184 20.700%
0.0056 15.600%
0.0012 14.400%
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
remwinfi4-taaR-,)nin Pamela I CrhiArah
3
Structure Networking:
Type Stru (flows Stru Musk.K Musk.X Description
# into) # (hrs)
Pond #1 =_> #2 0.000 0.000 P-1
Pond #2 =_> #3 0.000 0.000 P-2
Pond #3 =_> End 0.000 0.000 P-3
#1
Pond
#2
Pond
#3
Pond
Filename:KellerSandMine25yr.se4 Printed 05-30-2023

SEDCAD 4 for Windows
r.nnvrinhf 1QQii_'7n1n Pamcla I Crhti►iah
4
Structure Summary:
Immediate Total Peak Total Peak Peak
Contributing Contributing Runoff Sediment Sediment Settleable 24VW
Area Area Discharge Volume (tons) Conc. Conc. (MI/1)
(ac) (ac) ( S) (ac-it) (mg/0 (ml/I)
In 53.91 5.00 119.6 341104 22.13 11.30
#1 11.700 11.700
Out 26.61 4.96 19.8 4,392 0.07 0.05
In 30.30 5.30 19.9 4,182 0.07 0.05
#2 0.800 12.500
Out 13.90 5.00 18.3 3,441 0.00 0.00
In 108.69 15.40 90.8 10,039 5.18 2.42
#3 24.900 37.400
Out 21.49 9.38 21.4 21014 0.00 0.00
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
r`.nn%mnht 1 QQA-7nl n Pamcla I C,-h%AlMh
5
Particle Size Distributions) at Each Structure
Structure #1 (P-1):
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 97.022% 100.000%
2.0000 64.715% 100.000%
0.4250 54.012% 100.000%
0.1500 36.708% 100.000%
0.0750 29.007% 100.000%
0.0184 20.705% 100.000%
0.0056 15.604% 94.202%
0.0012 14.403% 86.956%
Structure #2 (P-2):
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 100.000% 100.000%
2.0000 100.000% 100.000%
0.4250 100.000% 100.000%
0.1500 100.000% 100.000%
0.0750 100.000% 100.000%
0.0184 100.000% 100.000%
0.0056 94.212% 100.000%
0.0012 86.977% 94.592%
Structure #3:
Size(mm) In Out
9.5000 100.000% 100.000%
4.7500 98.247% 100.000%
2.0000 72.803% 100.000%
0.4250 64.088% 100.000%
0.1500 49.998% 100.000%
0.0750 43.727% 100.000%
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

I a
SEDCAD 4 for Windows
f.nnu inhf 4QOR_gnln Pammia 1 Crh%AmK
6
Size(mm) In Out
0.0184 36.967% 100.000%
0.0056 32.813% 100.000%
0.0012 30.749% 100.000%
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
n,.mm�e��oon_omn a�mei= i c�m.pe
Structure Detail.
Structure #1 (Pond)
P-1
Pond Inputs:
Initial Pool Elev: 769.00 ft
Initial Pool: 0.09 ac-ft
*Sediment Storage: 0.33 ac-ft
Dead Space: 20.00%
*Sediment opacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter Riser Height Diameter Barrel Barrel Slope Manning's n Spillway Elev Holes per
(in) (ft) (in) Length(ft) (%) (ft) Elev
24.00 3.00 18.00 128.00 0.75 0.0150 770.00 2
Floating Siphon
Crest Elev Inlet Elev, Outlet Elev DI`mle)ter Length(ft) Manning's n
772.00 769.00 767.50 2.00 100.00 0.0140
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
772.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 772.66 ft
H'graph Detention Time: 2.45 hrs
Pond Model: CSTRS
Dewater Time: 1.40 days
Trap Efficiency: 83.44%
Dewatering time is calculated from peak stage to lowest splllway
Elevation-Capacity-Discharge Table
Filename:KellerSandMine25yr.so4 Printed 05-30-2023

SEDCAD 4 for Windows
r.-mhl iooa-omn c-1. I Q,h-h
8
Area Capacity Discharge D Timeer
Elevation me
(ac) (ac-ft) (ds) (hrs)
768.74 0.339 0.000 0.D00 Top of Sed.Storage
769.00 0.360 0.090 0.000 Low hole SPW#1
769.50 0.404 0.281 0.215 10.75*
770.00 0.450 0.495 0.285 10.40 Spillway#1
770.50 0.501 0.732 6.970 10.50
771.00 0.555 0.996 13.430 0.50
771.50 0.611 1.287 14.093 0.35
772.00 0.670 1.607 14.726 0.40 Spillway#2
Spillway#3
772.50 0.685 1.946 17.440 0.55
772.66 0.690 2.057 26.614 0.15 Peak Stage
773.00 0.700 2.292 46.011
Detailed Discharge Table
Combined
Elevation Perf. Riser(cfs) Floating Siphon Emergency Total
Spillway O (cfs) (cfs) Discharge
(cfs)
768.74 0.000 0.000 0.000 0.000
769.00 2.00>0.000 0.000 0.000 0.000
769.50 0.149 0.066* 0.000 0.215
770.00 0.210 0.075* 0.000 0.285
770.50 6.886 0.083* 0.000 6.970
771.00 13.339 0.091* 0.000 13.430
771.50 13.995 0.098* 0.000 14.093
772.00 14.622 0.105 0.000 14.726
772.50 15.223 0.111 2.106 17.440
773.00 15.801 0.117 30.093 46.011
Structure #2(Pond)
P-2
Pond Inputs:
Initial Pool Elev: 766.50 ft
Initial Pool: 0.15 ac-ft
*Sediment Storage: 0.00 ac-ft
Dead Space: 20.00%
*Sed%?lent capacty was entered by user
Perforated Riser
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
rnmirinh}1QQfi_7nin Pamola I Crhumh
9
Riser Barrel Number of
Riser Height Barrel Barrel Slope Spillway Elev
Diameter (ft} Diameter Length(ft) (%} Manning s n (ft) Holes per
(in) (in) Elev
24.00 5.001 18.00 220.00 0.501 0.0150 770.00 2
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
771.00 10.00 3.00:1 3.00:1 10.00
Pond Results:
Peak Elevation: 771.08 ft
H'graph Detention Time: 4.61 hrs
Pond Model: CSiRS
Dewater Time: 2.21 days
Trap Efficiency: 8.05
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.00 0.000 0.000 0.000 Top of Sed.Storage
765.50 0.043 0.007 0.000
766.00 0.170 0.057 0.000
766.50 0.209 0.151 0.000 Low hole SPW#1
767.00 0.252 0.266 0.149 9.37*
767.50 0.299 0.404 0.210 7.92*
768.00 0.350 0.566 0.406 4.83*
768.50 0.369 0.746 0.507 6.50
769.00 0.389 0.935 0.738 5.55
769.50 0.409 1.135 0.871 4.35
770.00 0.430 1.345 0.983 6.20 Spillway#1
770.50 0.449 1.564 6.886 7.30
771.00 0.469 1.794 13.496 0.75 Spillway#2
771.08 0.472 1.832 13.900 0.30 Peak Stage
771.50 0.489 2.034 16.069
772.00 0.510 2.283 44.508
772.50 0.554 2.549 80.830
773.00 0.600 2.838 128.194
*Designates times)to dewater have been extrapolated beyond the 50 hour hydrograph limit.
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
r. m h,4Q.R-9OID P-1. I RQ,h-F
10
Detailed Discharge Table
Combined
Elevation Emergency Total
(ft) Perf. Riser(ds) Spillway(cfs) Discharge
(cfs)
765.00 0.000 0.000 0.000
765.50 0.000 0.000 0.000
766.00 0.000 0.000 0.000
766.50 2.00>0.000 0.000 0.000
767.00 0.149 0.000 0.149
767.50. 2.00>0.210 0.000 0.210
768.00 0.406 0.000 0.406
768.50 2.00>0.507 0.000 0.507
769.00 0.738 0.000 0.738
769.50 O.B71 0.000 0.871
770.00 0.983 0.000 0.983
770.50 6.886 0.000 6.886
771.00 13,496 0.000 13.496
771.50 13.963 2.106 16.069
772.00 14.415 30.093 44.508
772.50 14.854 65.976 80.830
773.00 15.279 112.915 128.194
Structure #3(Pondl
P-3
Pond Inputs:
Initial Pool Elev: 766.00 ft
Initial Pool: 0.51 ac-ft
*Sediment Storage: 0.63 ac-ft
Dead Space: 20.00%
*Sediment capacity was entered by user
Perforated Riser
Riser Barrel Number of
Diameter RiserftHelc Diameter Length(ft) Barrel lope Manning's n Spillwafty Elev Holes per
(in) ( ) (in) ( ) ( ) ( ) Elev
36.00 7.001 18.00 100.00 1.00 0.0150 771.50 2
Floating_Siphon
Crest Elev Inlet Elev Outlet Elev Diameter Length(ft) Manning's n
772.00 766.00 763.00 2.00 100.00 0.0140
Filename:KellerSand1V1rne25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
r.nrnrrinh41aaA_9Mlt Domain I Qf-h%A#Oh
11
Emergency Spillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width(ft)
772.00 10.00 3.00:1 3.00:1 20.00
Pond Results:
Peak Elevation: 772.42 ft
H'graph Detention Time: 3.31 hrs
Pond Model: CSTRS
Dewater Time: 20.47 days
Trap Efficiency: 76.43%
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Ca pacity-Dischar eq Table
Area Capacity Discharge Dewater
Elevation Time
(ac) (ac-ft) (cfs) (hrs)
765.32 0.630 0.000 0.000 Top of Sed.Storage
765.50 0.688 0.119 0.000
766.00 0.870 0.508 0.000
766.50 0.909 0.952 0.091 59.21*
767.00 0.948 1.417 0.098 57.31*
767.50 0.989 1.901 0.105 55.92*
768.00 1.030 2.405 0.111 54.90* Low hole SPW#1
768.50 1.071 2.931 0.154 41.16*
769.00 1.113 3.477 0.176 37.63*
769.50 1.156 4.044 0.193 35.57*
770.00 1.200 4.633 0.208 34.20*
770.50 1.241 5.244 0.260 28.45*
771.00 1.284 5.875 0.288 26.52*
771.50 1.326 6.527 0.312 25.30* Spillway#1
Spillway#2
772.00 1.370 7.201 10.484 33.05 Spillway#3
772.42 1.449 7.800 21.487 2.00 Peak Stage
772.50 1.459 7.908 23.471
773.00 1.550 8.660 75.399
*Designates times)to dewater have been extrapolated beyond the 50 hour hydrograph limit
Detailed Dischar a Table
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

J •
SEDCAD 4 for Windows
(:nnvrinht 1GCR_inin Damnia I Crhutah
12
Combined
Elevation Perf.Riser(cfs) Floating Siphon Emergency Total
(ft) (cfs) Spillway(cfs) Discharge
(cfs)
765.32 0.000 0.000 0.000 0.000
765.50 0.000 0.000 0.000 0.000
766.00 0.000 0.000 0.000 0.000
766.50 0.000 0.091* 0.000 0.091
767.00 0.000 0.098* 0.000 0.098
767.50 0.000 0.105* 0.000 0.105
768.00 1.00>0.000 0.111* 0.000 0.111
768.50 0.037 0.117* 0.000 0.154
769.00 0.053 0.123* 0.000 0.176
769.50 0.064 0.129* 0.000 0.193
770.00 1.00>0.074 0.134* 0.000 0.208
770.50 0.120 0.139* 0.000 0.260
771.00 0.143 0.144* 0.000 0.288
771.50 0.163 0.149* 0.000 0.312
772.00 10.330 0.154 0.000 10.484
772.50 19.167 0.159 4.145 23.471
773.00 19.692 0.164 55.544 75.399
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

SEDCAD 4 for Windows
13
Subwatershed Hydrology Detail,
SWS Area Time of Musk K Curve Peak Runoff
# #
S SWS Conc Musk UHS Discharge Volume
#
(ac) (hrs) (hrs) Number (cfs) (ac-ft)
#1 1 0.600 0.001 0.096 0.242 91.000 TR55 3.00 0.285
2 7.500 0.115 0.000 0.000 91.000 TR55 37.46 3.568
3 3.600 0.093 0.092 0.267 74.000 TR55 14.19 1.152
E 11.700 53.91 5.004
#2 1 0.800 0.001 0.123 0.231 86.000 TR55 3.81 0.342
E 12.500 30.30 5.300
#3 1 2-100 0.092 0.060 0.307 91.000 7R55 10.49 0.999
2 13.200 0.118 0.000 0.000 91.000 TRSS 65.93 6.279
3 9.600 0.163 0.091 0.267 74.000 TR55 35.93 3.122
1 37.400 108.69 15.403
Subwatershed Sedimentology Detail.,
Peak Peak
Stru SWS Sediment Sediment Settleable 24VW
# # Soil K L(ft) S(%) C P PS# Conc. Conc
(tons) (ml/I)
(mg/1) (ml/1)
#1 1 0.170 50.00 33.00 0.4500 1.0000 1 25.8 118,172 76.70 41.58
2 0.170 100.00 5.00 0.4500 1.0000 1 69.6 25,704 16.68 9.24
3 0.240 100.00 5.00 0.3600 1.0000 1 24.2 28,941 18.78 9.96
119.6 34,104 22.13 11.30
#2 1 0.170 50.00 33.00 0.4500 1.0000 1 32.6 123,303 80.03 43.77
E 19.9 4,182 0.07 0.05
#3 1 0.240 100.00 5.00 0.0820 1.0000 1 4.3 S,816 3.77 2.05
2 0.170 100.00 2.00 0.4500 1.0000 1 53.1 11,190 7.26 4.02
3 0.240 100.00 5.00 0.0820 1.0000 1 16.1 7,066 4.55 2.44
71 90.8 10,039 5.18 2.42
Subwatershed Time of Concentration Details;
Stru SWS Land Flow Condition Slope(%) Vert. Dist. Horiz. Dist. Velocity Time(hrs)
# # (R) (ft) (fps)
#1 1 S.Nearly bare and unfilled,and 50.00 24.00 48.00 7.070 0.001
alluvial valley fans
#1 1 Time of Concentration: 0.001
Filename:KellerSandMine25yr.so4 Printed 05-30-2023

i
SEDCAD 4 for Windows
(:nnvrinhf'Iawt_7fnin Pamaia i Crhurah
14
Stru SWS Vert.Dist. Horiz.Dist. Velocity
# # Land Flow Condition Slope(%) (ft) (ft) (fps) Time(hrs)
#1 2 5.Nearly bare and unfilled,and 2.46 16.00 650.00 1.560 0.115
alluvial valley fans
#1 2 Time of Concentration: 0.115
#1 3 3.Short grass pasture 5.32 33.00 620.00 1.840 0.093
#1 3 Time of Concentration: 0.093
#2 1 5.Nearly bare and untilled,and 5.33 32.00 600.00 2.300 0.072
alluvial valley fans
#2 1 Time of Concentration: 0.001
#3 1 3.Short grass pasture 5.67 36.00 635.00 1.900 0.092
#3 1 Time of Concentration: 0.092
#3 2 5.Nearly bare and untilled,and 2.00 12.00 600.00 1.410 0.118
alluvial valley fans
#3 2 Time of Concentration: 0.118
#3 3 2.Minimum tillage cultivation 4.72 30.00 635.00 1.080 0.163
#3 3 Time of Concentration: 0.163
su�bwatershed Muskingum Routing Details:
Stru SWS Land Flow Condition Slope(%) Vert.Dist. Horiz. Dist. Velocity Time(hrs)
# # (ft) (ft) (fps)
#1 1 5.Nearly bare and untilled,and 2.55 14.00 550.00 1.590 0.096
alluvial valley fans
#1. 1 Muskingum K: 0.096
#1 3 S.Nearly bare and unfilled,and 32.73 18.00 55.00 5.720 0.002
alluvial valley fans
5.Nearly bare and unfilled,and 2.40 12.00 500.00 1.540 0.090
alluvial valley fans
#1 3 Muskingum K: 0.092
#2 1 5.Nearly bare and untilled,and 2.33 14.00 600.00 1.520 0.109
alluvial valley fans
#2 1 Muskingum K: 0.123
#3 1 S.Nearly bare and untilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
S.Nearly bare and untitled,and 5.88 30.00 510.00 2.420 0.058
alluvial valley fans
#3 1 Muskingum K: 0.060
#3 3 5.Nearly bare and unfilled,and 32.00 16.00 50.00 5.650 0.002
alluvial valley fans
5.Nearly bare and untilled,and 2.55 13.00 510.00 1.590 0.089
alluvial valley fans
#3 3 Muskingum K: 0.091
Filename:KellerSandMine25yr.sc4 Printed 05-30-2023

4 0
SEDCAD 4.0
(`nnrrinht'1 QQA_7f19(1 Pnmolo I Crh+unh
1
D-1 Diversion Ditch
Material: Coarse gravel noncolloidal
Trapezoidal Channel
Left Right Freeboard Freeboard Freeboard Limiting
Bottom Width(ft) Sideslo a Sideslo a Slope Mannin 's n Depth(ft) of Depth Mult.x Velocit
y
Ratio Ratio
(VxD) (fps)
20.00 3.0:1 3.0:1 2.0 0.0250 0.50 1 6.0
w/o Freeboard w/Freeboard
Design Discharge: 75.00 cfs
Depth: 0.60 ft 1.10 ft
Top Width: 23.63 ft 26.63 ft
Velocity: 5.68 fps
X-Section Area: 13.19 sq ft
Hydraulic Radius: 0.554 ft
Froude Number: 1.34
SEDCAD Utility Run Printed 05-30-2023