In some cases, we can actually put specific measurements in our “facility siting” analysis. Take, for example, an old but often missed distance between the tank truck/railcar and the closest aboveground tank.
(emphasis by me)
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1910.106(e)(4) Tank vehicle and tank car loading and unloading.
1910.106(e)(4)(i) Tank vehicle and tank car loading or unloading facilities shall be separated from aboveground tanks, warehouses, other plant buildings or nearest line of adjoining property which may be built upon by a distance of 25 feet for Category 1 or 2 flammable liquids, or Category 3 flammable liquids with a flashpoint below 100 °F, and 15 feet for Category 3 flammable liquids with a flashpoint at or above 100 °F and Category 4 flammable liquids, measured from the nearest position of any fill stem. Buildings for pumps or shelters for personnel may be a part of the facility. Operations of the facility shall comply with the appropriate portions of paragraph (f)(3) of this section.
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Here is what this looks like:
SAFTENG Members can download the full image without watermark and the analysis of NFPA 30 as it applies to these requirements…