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<br />TABLE G-4 <br />ROARING FORK RESOURCES <br />MAMM CREEK SAND & GRAVEL PIT <br />ESTIMATE OF COLORADO RIVER FLUCTUATION <br />Source: USGS <br />Station: 9085100 <br />Location: Below Glenwood Springs <br /> <br /> <br />Year Peak Flow <br />Gage <br />Hei ht Low Flow~ <br />Gage <br />Hei ht ~ <br /> <br />Difference <br />1967 <br />1968 7.03 <br />7.89 3.60 3.43 <br />4.291 <br />1969 7.13 3.53 <br />1 <br />1970 9.17 5.57 <br />1971 8.70 5.10 <br />1972 7.73 4.13 <br />1973 9.48 5.88 <br />1974 7.96 4.36 <br />1975 7.84 4.24 <br />1976 6.54 2.94 <br />1977 4.67 1.07 <br />1978 9.10 5.50 <br />1979 8.95 5.35 <br />1980 8.78 5.18 <br />1981 6.48 2.88 <br />1982 7.37 ~ 3.77 <br />1983 11.74 8.14 <br />1984 12.49 8.89 <br />198 <br />1986 5 10.35 <br />9.74 ~ 6.75 <br />6.14 <br />1987 <br />1988 7.54 <br />7.50 3.94 <br />3.90 <br />1989 6.44 2.841 <br />1990 7.17 3.57 <br />1991 7.82 4.22 <br />1992 6.08 2.48 <br />1993 9.37 5.77 <br />1994 6.96 3.36 <br />1995 10.90 7.30 <br />1996 9.65 6.05 <br />1997 10.42 6.82 <br />_ <br />1998 8.06 4.46 <br />1999 8.11 4.51 <br /> Average 4.741 <br /> Minimum 1.07 <br />~ Maximum 889 <br /> <br />