California Air Resources Board 2004 Almanac (web) Table 5-52 Chapter 5 San Joaquin Valley Perchloroethylene Emissions San Joaquin Valley - Perchloroethylene Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 309 61% 5% Area-wide Sources 195 39% 3% On-Road Mobile 0 0% 0% Gasoline Vehicles 0 0% 0% Diesel Vehicles 0 0% 0% Other Mobile 0 0% 0% Natural Sources 0 0% 0% Total 504 100% 8% Total Statewide 6078