Laserfiche WebLink
1999 = 0.483 cfs (weekly measurements) <br />1998 = 1.209 cfs " <br />1997 = 1.242 cfs " <br />1996 = 1.400 cfs " <br />1995 = 0.386 cfs If <br />1994 = 0.114 cfs " <br />1993 = 0.602 cfs <br />1992 = 0.072 cfs " <br />1991 = 0.072 cfs " <br />1990 = 0.076 cfs " <br />1989 = 0.181 cfs " <br />1988 = 0.055 cfs " <br />1987 = 0.070 cfs " <br />1986 = 0.568 cfs 71 <br />'1985CY (Calendar Year) = 1.172 cfs " <br />1984CY = 1.439 cfs " <br />1983CY = 0.531 cfs " <br />1982CY = 0.547 cfs " <br />1981CY = 0.098 cfs " <br />1980CY = 0.990 cfs " <br />This year's average flow value, 0.434 cfs, is 45% below the historic <br />(1980 -2011) average flow value, 0.790 cfs. The timing of when flow <br />values are collected affects these averages. Flow values at this site <br />were affected by the pumping of water from this pond for the truck wash <br />system and for water trucks (dust control). Pumping for the truck wash <br />system began on September 18, 1984. The upper end of this pond was <br />regraded in 2002. The truck wash was last used in 2007. These pump <br />lines, which were siphoning water out of Pond 002, were capped off on <br />July 7, 2010. Additional ponds (the Upper and Lower Sumps) were <br />constructed above this pond in 2011. Review of the TDS plot indicates a <br />recent stable trend (SF 0.2), with the peak value occurring in August <br />2012. <br />Grassy Creek Drainage. Five required monitoring sites lie within the <br />Grassy Creek drainage. They are (from upstream to downstream): YSGF5, <br />12 <br />