Even after better practices and new sources of water through federal projects, groundwater pumping continues at a tremendous rate. The San Joaquin Valley aquifer lost about from 1961 to 2003, which despite being a dramatic reduction from the 1960s, still amounts to nearly per year. The subsidence caused by groundwater withdrawal has threatened infrastructure in the San Joaquin Valley, including the California Aqueduct, a State Water Project facility that conveys water from the delta region to coastal-central and southern California. Subsidence has also damaged highways and power lines as well as causing some areas to be more susceptible to flooding.