Sacramento Valley - Chromium (Hexavalent) Emissions Source tons/year Percent Air Basin Percent State Stationary Sources 0.1021 79% 4% Area-wide Sources 0.0079 6% 0% On-Road Mobile 0 0% 0% Gasoline Vehicles 0 0% 0% Diesel Vehicles 0 0% 0% Other Mobile 0.0187 15% 1% Natural Sources <.0001 0% 0% Total 0.1288 100% 5% Total Statewide 2.4651