b'TABLE 1. Inbound/Outbound Shipments in Idaho per year (provided by Idaho DOT)10Commodity Inbound Outbound Intra-State Total % TotalCereal grains 9,386 4,540 25,345 39,271 34.1%Other ag. products 891 2,303 7,033 10,227 8.9%Gravel 1,323 931 6,775 9,029 7.8%Wood products 4,831 2,045 2,065 8,941 7.8%Logs 21 12 7,443 7,476 6.5%Nonmetal min.1,293 344 4,236 5,873 5.1%productsWaste/scrap 267 800 3,960 5,027 4.4%Animal feed 382 221 2,856 3,460 3.0%Fertilizers 441 996 1,886 3,322 2.9%Other foodstu\x1ds 601 1,557 1,034 3,193 2.8%Mixed freight 1,471 444 325 2,240 1.9%Natural sands 88 1,131 931 2,150 1.9%Live animals/\x1fsh 876 294 844 2,013 1.7%Coal-n.e.c. 516 199 662 1,377 1.2%Fuel oils 241 23 897 1,161 1.0%Other 4.140 1,765 4,471 10,377 9.0%Total 26,768 17,605 70,763 115,136 100.0%MAJOR FACILITIES RELATED TOmust be notied within 24 hours of a petroleum or HAZARDOUS CHEMICAL STORAGE,hazardous substance release. However, that rule only STOCKPILE, UTILIZATIONS, ANDapplies for the petroleum ASTs. Hazardous waste ASTs DISTRIBUTION and ASTs utilized for used oil are regulated by Idahos Storage Tanks Hazardous Waste Program. ASTs containing hazardous materials, but not considered waste, are regulated The storage of petroleum and hazardous liquids isby other agencies. Local re districts, cities, and regulated. These regulated liquids can be stored incounties may have additional AST ordinances or best aboveground storage tanks (AST) (see Figure 3) ormanagement practices. 12underground storage tanks (UST) (see Figure 4). The UST Program helps protect against releases from UST systems. Any leak can pose a serious environmental threat if the stored hazardous substance seeps into the soil and contaminates the drinking water. The Idaho Department of Environmental Quality (DEQ) has approval from the Environmental Protection Agency (EPA) to operate the UST program in the state. States with an approved UST program only require one set of statutes and regulations and their programs must be at least as stringent as EPAs regulations.As for the ASTs, the EPA regulates those that store petroleum in Idaho under the federal Spill Prevention, Control, and Countermeasure rule. The DEQ stillFIGURE 3. Aboveground Storage Tanks 1274 I D A H O I N F R A S T R U C T U R E G U I D E B O O K'