1988-04-18_PERMIT FILE - C1981008A

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* * * * * * * * * * * * * * * * * * * * * * * JUNCTION 1, BRANCH 1, STRUCTURE 1 * * * * * * * * * * * * * * * * * * * * * * * *** HYDRAULIC INPUT VALUES FOR SUBWATERSHEDS *** WATER AREA CURVE TC TT ROUTING COEFFICIENTS UNIT SHED ACRES NUMBER HR HR K-HRS X HYDRO ------------------------------------------------------------------------ 1 96.00 74.00 0.220 0.000 0.000 0.00 2.0 *** SEDIMENT INPUT VALUES FOR SUBWATERSHEDS *** WATER SEG SOIL LENGTH SLOPE CP PART SURF SHED NUM K FEET PCT VALUE OPT COND ---------------------------------------------------------------------------- 1 1 0.22 800.0 5.56 1.000 1.0 0.0 * * * COMPUTED VALUES FOR INDIVIDUAL WATERSHEDS * * * WATERSHED PEAK FLOW RUNOFF SEDIMENT DIAM DELIVERY DELIVERY (CFS) ( INCHES) TONS (MM) RATIO 1 RATIO 2 ---------------------------------------------------------------------- 1 9.00 0.18 152.13 0.004 0.654 1.000 NOTE: SEDIMENT DOES NOT INCLUDE POSSIBLE DEPOSITION BY DELIVERY RATIO 2 ***** SUMMARY TABLE FOR TOTAL WATERSHED ***** --------------------------------------------- RUNOFF VOLUME = 1.4603 ACRE-FT PEAK DISCHARGE = 8.9995 CFS AREA = 96.0000 ACRES TIME OF PEAK DISCHARGE = 12.20 HRS BETA = 1.0000 RAINFALL_ EROSITIVITY FACTOR = 13.39 El UNIT PEAK CONCENTRATION = 141519.75 MG/L PEAK SETTLEABLE CONCENTRATION = 35.16 ML/L PEAK SETTLEABLE CONCENTRATION = 48869.11 MG/L TOTAL SEDIMENT YIELD = 152.1337 TONS REPRESENTATIVE PARTICLE SIZE = 0.0049 MM TIME OF PEAK CONCENTRATION = 12.20 HRS PERIOD OF SIGNIFICANT CONCENTRATION = 13. 10 HRS VOLUME WEIGHTED AVERAGE SETTLEABLE CONCENTRATION DURING PERIOD OF SIGNIFICANT CONCENTRATION = 18.24 ML/L VOLUME WEIGHTED AVERAGE SETTLEABLE CONCENTRATION DURING PEAK 24 HOUR PERIOD = 18.24 ML/L ARITHMETIC AVERAGE SETTLEABLE CONCENTRATION DURING PERIOD OF SIGNIFICANT CONCENTRATION = 0.00 ML/L ARITHMETIC AVERAGE SETTLEABLE CONCENTRATION DURING PEAK 24 HOUR PERIOD = 7. 10 ML/L *** PARTICLE SIZE DISTRIBUTION OF SEDIMENT ***