A low-interest loan program that supports California water projects has seen three times more requests for money than it has funds available, partly because of surging interest in water recycling.The Clean Water State Revolving Fund exists to help local agencies pay for wastewater treatment plant upgrades, stormwater capture and wildlife habitat projects that improve water quality. Eighty percent of the money in the fund comes from federal appropriations via the U.S. Environmental Protection Agency, and the remainder from state appropriations. A separate Drinking Water State Revolving Fund provides grants and loans for drinking water treatment and supply projects.