Lake Davis Northern Pike Eradication EIS/EIR
Client: California Department of Fish and Game
Location: Sacramento, CA
Summary: Cardno ENTRIX was the prime contractor for an EIS and EIR conducted for the California Department of Fish and Game to assess the proposed eradication of northern pike from Lake Davis. The pike, introduced in the early-mid 1990s, severely depressed the trout and other fisheries in the Lake, reducing the tourism and recreational activity and spending that are critical to this area. A previous eradication project using the chemical rotenone was apparently successful, but it is believed that the pikes were reintroduced by anglers. As prime contractor, Cardno ENTRIX was responsible for many sections of the report, including the biology, toxicology, geology, economic, and social justice sections. A draft report was released to the public in August 2006 and the final report was completed in early-mid 2007. Lake water levels were reduced and the pike was eradicated in 2009 by a combination of reduced Lake levels and piscicide treatment.
The economics section of the EIS/EIR analyzes the impacts of various treatment options as well as a No-Treatment option. Under the No-Treatment option, escape of the pike from Lake Davis increases, and the report analyzes the potential statewide impacts of escapement on recreational and commercial fishing and water availability for agricultural and municipal and industrial contractors for State Water Project and Central Valley Project.