oil storage tanks chemical storage tanks holding tanks OIL STORAGE TANKS Controlling Water Pollution From Oil Storage Tanks. Thousands of oil storage tanks dot the landscape of oil-rich counties in southern and central California. Oil storage tanks occasionally leak. The risk of leakage increases as the oil tank ages. If the oil storage tank is underground, a small oil leak may go undetected for a long period of time. Because underground fuel oil storage tanks are buried, it is difficult to tell whether the tank is leaking or not. This circular concerns explosions in fuel oil storage tanks caused by overheating of their contents. Manufacturer of liquid level indicators, bolted water and oil storage tanks and welded water and oil storage tanks. There are two types of fuel oil storage tanks. Underground fuel oil storage tanks are often even more problematic because a leaking tank may not be noticed for years. All piping associated with oil storage tanks is visually inspected for leaks by maintenance personnel. Oil storage tanks contain a heating tube. Operators are allowed to upgrade existing waste oil storage tanks provided the tank was manufactured for the purpose of storing waste oil or petroleum products and was built according to applicable standards at the time of manufacture. Above ground waste oil storage tanks should be designed and constructed to comply with one of the following construction standards. In the United States, oil storage tanks are regulated to try to prevent future leaks. Construction of bunds for oil storage tanks as a generic term to describe the vast range.