California Air Resources Board 2007 Almanac (web) Chapter 5 Sacramento Valley Table 5-71 Sacramento Valley - Chromium (Hexavalent) Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 0.01 31% 1% Area-wide Sources < .01 3% 0% On-Road Mobile 0.01 29% 1% Gasoline Vehicles 0.01 27% 1% Diesel Vehicles < .01 2% 0% Other Mobile 0.01 37% 1% Gasoline Fuel < .01 0% 0% Diesel Fuel < .01 0% 0% Other Fuel 0.01 36% 1% Natural Sources 0 0% 0% Total 0.04 100% 3% Total Statewide 1.17