To authorize the Secretary of the Interior to construct and rehabilitate Federal water supply lines associated with Folsom Dam in California, and for other purposes.

Authorizes the Secretary of the Interior to carry out separate projects to: (1) design and construct a parallel water supply line connecting the Folsom Dam pumping facility to the Hinkle Wye in California serving the City of Roseville and the San Juan Water District in California; and (2) rehabilitate the existing water supply line connecting such facilities.