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<br />. Chicago Creek just upstream of confluence with Spring Gulch <br /> Recurrence Mean <br /> Interval Regression D.A. Slope Peak Flow <br /> (years) Equation (sq. mi.) (Mt) (cfs) <br /> 2 Q=11.0(A)^.663*(S+ 1 )^3.465 46.1 0.357 402 <br /> 5 Q=17.9(A)^.677*(S+ 1 )^2. 739 46.1 0.357 552 <br /> 10 Q=23.0(A)^.685*(S+ 1 )^2.364 46.1 0.357 653 <br /> 50 Q=34.5(A)^.700*(S+ 1 )^1.768 46.1 0.357 865 <br /> 100 Q=39,5(A)^.706*(S+ 1 )^1.577 46,1 0,357 956 <br /> 500 Q=51,5(A)^.715*(S+1 )^1,209 46.1 0.357 1153 <br /> <br />. <br /> <br />. <br />