1988-04-18_PERMIT FILE - C1981008A

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JUNCTION 3, BRANCH 1, STRUCTURE 1 * * * * * * * * * * * * * * * * * * * * * * * *** HYDRAULIC 114PUT VALUES FOR SUBWATERSHEDS *** WATER AREA CURVE TC TT ROUTING COEFFICIENTS UNIT SHLD ACRES NUMBER IIR HR K-HRS X HYDRO ------------------------------------------------------------------------ 1 114.00 80.00 0. 130 0.000 0.000 0.00 1.0 *** SEDIMENT INPUT VALUES FOR SUBWATERSHEDS *** WATER SEG SOIL LENGTH SLOPE CP PART SURF SHED NUM K FEET PCT VALUE OPT COND ---------------------------------------------------------------------------- 1 1 0.25 350.0 12.00 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 4.31 0.34 126.53 0.007 0.874 1.000 NOTE: SEDIMENT DOES NOT INCLUDE POSSIBLE DEPOSITION BY DELIVERY RATIO 2 ***** SUMMARY TABLE FOR TOTAL WATERSHED ***** --------------------------------------------- RUNOFF VOLUME = 0.3921 ACRE-FT PEAK DISCHARGE = 4.3079 CFS AREA = 14.0006 ACRES TIME OF PEAK DISCHARGE = 12.10 HRS BETA = 1.0000 RAINFALL EROSITIVITY FACTOR = 13.39 El UNIT PEAK CONCENTRATION = 410389.75 MG/L PEAK SETTLEABLE CONCENTRATION = 125.73 ML/L PEAK SETTLEABLE CONCENTRATION = 174766.00 MG/L TOTAL SEDIMENT YIELD = 126.5286 TONS REPRESENTATIVE PARTICLE SIZE = 0.0071 MM TIME OF PEAK CONCENTRATION = 12.10 HRS PERIOD OF SIGNIFICANT CONCENTRATION = 12.70 HRS VOLUME WEIGHTED AVERAGE SETTLEABLE CONCENTRATION DURING PERIOD OF SIGNIFICANT CONCENTRATION = 63.37 ML/L VOLUME WEIGHTED AVERAGE SETTLEABLE CONCENTRATION DURING PEAK 24 HOUR PERIOD = 63.37 ML/L ARITHMETIC AVERAGE SETTLEABLE CONCENTRATION DURING PERIOD OF SIGNIFICANT CONCENTRATION = 0.00 ML/L ARITHMETIC AVERAGE SETTLEABLE CONCLNTRATION DURING PEAK 24 HOUR PERIOD = 19.66 ML/L *** PARTICLE SIZE DISTRIBUTION OF SEDIMENT ***