Sedimentation of Williams Reservoir, Santa Clara County, California

Fifty-two acre-feet of sediment was ·deposited in Williams Reservoir
between 1913 and 1971. From calculations of the sediment yields in
other nearby drainage basins in Santa Clara County, it was determined
that 24 to 38 acre-feet of sediment would have been transported to
Williams Reservoir between 1961 and 1971 under natural conditions. The
difference (14 to 28 acre-ft) is probably a consequence of increased
sediment yield due to a fire that destroyed much of the vegetation in
the drainage basin in 1961.