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Test number: 22 Influent Samples : Date = 9/3/94 Sample Time, min TSS, ∆T TSS*∆T Starting Time = 15:15 1 2 2616 240 627840 Filling Time = 1620 sec 2 6 2416 240 579840 Silt Fence: 3 10 2420 240 580800 Amoco 2125 4 14 1816 240 435840 AOS = # 20 5 18 2104 240 504960 Ψ = 0.2 sec -1 6 22 2116 240 507840 Bulk flow: 7 26 2328 180 419040 Head over weir = 0.133 m Slurry tank: Start = 1.850 m Σ = 1620 3656160 End = 1.317 m MIC = 2257 mg/L Total Inflow: Q total = 2.80 Lps Flume & Pond: V in = 4.53 m 3 Area of pond = 6.12 m 2 Soil Added: Width of Fence= 0.711 m Wt of wet solids = 31.7 kg Undrained Vol of Tank = 0.127 m 3 Hydraulic Data & Effluent Samples: Time, min Level, m Sample TSS, mg/L ∆V, m 3 TSS*∆V, g T avg , min T avg *∆V 0 0.000 5 0.118 1 680 -0.010 -7 3 0 10 0.209 2 788 0.282 222 8 2 15 0.266 3 920 0.490 451 13 6 20 0.310 4 1000 0.569 569 18 10 25 0.338 5 1054 0.667 703 23 15 27 0.350 0.262 309 26 7 30 0.305 6 1180 0.275 325 29 8 60 0.157 7 536 0.906 485 45 41 90 0.104 8 48 0.324 16 75 24 120 0.082 9 140 0.135 19 105 14 150 0.071 10 92 0.067 6 135 9 180 0.062 11 48 0.055 3 165 9 240 0.050 12 32 0.073 2 210 15 300 0.042 13 32 0.049 2 270 13 360 0.035 14 24 0.043 1 330 14 420 0.027 15 16 0.049 1 390 19 480 0.019 16 20 0.049 1 450 22 600 0.000 17 4 0.116 0 540 63 Σ= 4.40 3108 292 MEC = 706 mg/L ζ = 70 % T d = 66 min 122
Test number: 23 Influent Samples : Date = 9/6/94 Sample Time, min TSS, ∆T TSS*∆T Starting Time = 14:20 1 2 2268 240 544320 Filling Time = 1140 sec 2 6 2128 240 510720 Silt Fence: 3 10 1940 240 465600 Amoco 2125 4 14 2196 240 527040 AOS = # 20 5 18 1960 180 352800 Ψ = 0.2 sec -1 Bulk flow: Head over weir = 0.133 m Slurry tank: Start = 1.850 m Σ = 1140 2400480 End = 1.465 m MIC = 2106 mg/L Total Inflow: Q total = 2.80 Lps Flume & Pond: V in = 3.19 m 3 Area of pond = 6.12 m 2 Soil Added: Width of Fence= 0.711 m Wt of wet solids = 31.7 kg Undrained Vol of Tank = 0.127 m 3 Hydraulic Data & Effluent Samples: Time, min Level, m Sample TSS, mg/L ∆V, m 3 TSS*∆V, g T avg , min T avg *∆V 0 0.000 5 0.117 1 1060 -0.004 -4 3 0 10 0.222 2 960 0.197 189 8 1 15 0.306 3 1088 0.325 354 13 4 19 0.353 0.384 419 17 7 20 0.341 4 1092 0.073 80 20 1 25 0.292 5 1012 0.300 303 23 7 30 0.261 6 852 0.190 162 28 5 60 0.183 7 396 0.477 189 45 21 90 0.145 8 400 0.233 93 75 17 120 0.124 9 208 0.129 27 105 13 150 0.111 10 48 0.080 4 135 11 180 0.102 11 28 0.055 2 165 9 240 0.088 12 104 0.086 9 210 18 300 0.076 13 72 0.073 5 270 20 360 0.066 14 28 0.061 2 330 20 420 0.058 15 28 0.049 1 390 19 480 0.050 16 28 0.049 1 450 22 600 0.036 17 8 0.086 1 540 46 720 0.023 18 32 0.080 3 660 53 840 0.000 19 20 0.141 3 780 110 Σ= 3.06 1842 405 MEC = 602 mg/L ζ = 73 % T d = 132 min 123
Page 1:
CRWR Online Report 95-6 AN EVALUATI
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ACKNOWLEDGMENTS This research was s
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4.2.3 TSS Reduction Efficiency of S
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LIST OF TABLES Table Title Page 2.1
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and reduce construction duration (G
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2. LITERATURE REVIEW 2.1 Introducti
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are characterized by lower permeabi
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size and is the estimated largest p
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corrected to a viscosity at 20 o C
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Influent samples from each of the t
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emaining 10% ranged from 15 to 50
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Much less research has been directe
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Figure 3.1 Location of Inventoried
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Table 3.2 Costs of Temporary Contro
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The inventory data indicate that si
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nature of construction activities r
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the discharge was 1542 mg/L, with a
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emained in suspension and were able
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Effluent Sampling Location Rock Ber
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5. LABORATORY TESTS OF SILT FENCES
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along with runoff from the flume. T
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Table 5.3 Grain sizes, Gradation, R
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phenomenon is similar to sediment-l
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w A S h 1 Silt Fence Figure 5.4 Vol
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Many of the tests ended after 48 ho
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observation demonstrates that field
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The permeameter initially was set u
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Flow per Area, cm/s 40 30 20 10 0 y
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6. CONCLUSIONS AND RECOMMENDATIONS
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topping. Knowledge of the performan
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Das, B. M., 1985, “Principles of
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Soil Conservation Service (SCS), 19
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Sample Descriptions Samples T1-T30
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Samples T109-T122 Although samples
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individual analyses of samples T1-T
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2 6 7 4 1 Fort McGrude Bannister Ln
Page 79 and 80: N T6 W W W W W W W W W W W T7 T5 T8
Page 81 and 82: LEGEND: -W- -NW- T18 Water Boundary
Page 83 and 84: T34 T38 NW NW NW NW T39 NW NW NW NW
Page 85 and 86: T49 T50 T53 T54 T58 W T55 W W W W T
Page 87 and 88: T75 W W W LEGEND: -W- -NW- T18 Wate
Page 89 and 90: N T105 T106 T107 T108 T97 T98 T101
Page 91 and 92: T117 N LEGEND: T118 -W- -NW- T18 Wa
Page 93: APPENDIX B - RESULTS OF SAMPLE ANAL
Page 96 and 97: SAMPLE DATE TIME DESCRIPTOR SITE TS
Page 98 and 99: T64 4/7/93 10:55AM UPSTREAM C 6 NIA
Page 100 and 101: Table B2. Results of Particle Size
Page 102 and 103: Table B4. Silt Fence Turbidity Redu
Page 105 and 106: Total Suspended Solids The analysis
Page 107 and 108: APPENDIX D - CATALOG OF FLUME TESTS
Page 109 and 110: Test number: 1 Influent Samples : D
Page 119 and 120: Test number: 11 Influent Samples :
Page 129: Test number: 21 Influent Samples :
Page 139 and 140: 132
Page 141 and 142: Amoco woven d = #20 sieve d = 8.50E
Page 143 and 144: 70 60 Flow per Area, cm/s 50 40 30
Page 145 and 146: APPENDIX F - BASE EFFICIENCY TEST 1
Page 147 and 148: Date = 9/17/94 Influent Samples: St
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