1988-04-18_PERMIT FILE - C1981008A (2)

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* * * * * * * * * * * * * * * * * * * * * * * JUNCTION 1, BRANCH 1, STRUCTURE 1 * * * * * * * * * * * * * * * * * * * * * * * *** HYDRAULIC INPUT VALUES FOR SUBWATERSHEDS *** 0 WATER AREA CURVE TC -T-r ROUTING COEFFICIENTS UNIT SITED ACRES NUMBER HR HR K-HRS X HYDRO ------------------------------------------------------------------------ 1 7.69 82.00 0.078 0.000 0.000 0.00 0.0 *** SEDIMENT INPUT VALUES FOR SUBWATERSHEDS *** WATER SEG SOIL LENGTH SLOPE CP PART SURF SHED NUM K FEET PCT VALUE OPT COND ---------------------------------------------------------------------------- 1 1 0.25 0.0 2.09 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 4.45 0.52 61.94 0.010 1.000 1.000 NOTE: SEDIMENT DOES NOT INCLUDE POSSIBLE DEPOSITION BY DELIVERY RATIO 2 ***** SUMMARY TABLE FOR TOTAL WATERSHED *"*** --------------------------------------------- RUNOFF VOLUME = 0.3339 ACRE-FT PEAK DISCHARGE = 4.4471 CFS AREA = 7.6930 ACRES TIME OF PEAK DISCHARGE = 12.00 I-IRS BETA = 1.0006 RAINFALL EROSITIVITY FACTOR = 17.31 El UNIT PEAK CONCENTRATION = 253183.56 MG/L PEAK SETTLEABLE CONCENTRATION = 100.36 ML/L PEAK SETTLEABLE CONCENTRATION = 125452.25 MG/L TOTAL SEDIMENT YIELD = 61.9401 TONS REPRESENTATIVE PARTICLE SIZE = 0.0100 MM TIME OF PEAK CONCENTRATION = 12.00 HRS PERIOD OF SIGNIFICANT CONCENTRATION = 12.60 HRS VOLUME WEIGHTED AVERAGE SETTLEABLE CONCENTRATION DURING PERIOD OF SIGNIFICANT CONCENTRATION = 50.49 ML/L VOLUME WEIGHTED AVERAGE SETTLEABLE CONCENTRATION DURING PEAK 24 HOUR PERIOD = 50.49 ML/L ARITHMETIC AVERAGE SETTLEABLE CONCENTRATION DURING PERIOD OF SIGNIFICANT CONCENTRATION = 0.00 ML/L ARITHMETIC AVERAGE SETTLEABLE CONCENTRATION DURING PEAK 24 HOUR PERIOD = 12.94 ML/L