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The Capay Diversion Dam and an Off-Channel Mining Plan

1994
The Capay Diversion Dam is modified with the addition of an inflatable top section to increase efficiency.   Because the dam diverts most of the flow from Cache Creek, the fish species above and below the dam are sharply different, with more native fish above the dam (Source: Moyle). In June the Board of Supervisors adopts a policy emphasizing that the creek must be viewed as a “total system” rather than as an appendage to mining (Source: Pollock).  The County begins work on an Off-Channel Mining Plan to regulate gravel excavation on land next to the creek and a Cache Creek Resource Management Plan to govern all activities within the stream channel. 
Source: 
Moyle, Pollock
Image Source: 
Yolo County Flood Control and Water Conservation District
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