Underground-storage-tank-life-expectancy, generally, an underground fuel tank lasts more than twenty years, but this depends on the construction process, material, installation system, maintenance and soil condition. after every 20 years, keep checking the condition of your underground tank.. Life expectancy of buried oil storage tanks - residential in new england for a two year period [1984-5] among customers who had buried heating oil tanks (16% of total customers) surveyors found an average of 1.7 tank leaks per thousand customers. they also found 2.5 fuel line leaks per 1000 customers. t, the life expectancy of the average underground storage tank made of steel is about 10-15 years, but many factors may affect this prediction. the variables may include, but are not limited to: the quality and thickness of the steel, stray electrical current, elevated water table, ph of the soil and so on..

The department of energy and environmental protection (deep) recently issued an "approval of an alternative life expectancy for certain underground storage tanks" that extends the life expectancy of some tanks to 40 years from the date of installation. prior to this approval most usts had a life expectancy of 30 years., fiberglass underground storage tanks for gasoline storage are expected to last 30-years. after this amount of time regulations require their replacement..

A white paper from assmann average life expectancy of a polyethylene tank is 15-20 years or even longer depending upon a variety of factors. listed below are some of the major factors that help determine the life expectancy. chemical stored: the first and most obvious factor is the chemical being stored and the operating parameters of the tank., sullivan d. curran p.e., former executive director 50+ year history: for more than 50 years, fiberglass underground petroleum storage tanks and piping have established an outstanding reputation for corrosion resistant, product compatible storage and distribution of motor fuels, including today’s generation of biofuels, chemicals, and various petroleum products. 30 year limited ….

Notes to the table above. buried oil storage tank life data is given separately at buried oil tank life expectancy. fiberglass oil tanks refers to tanks constructed of 100% fiberglass and epoxy resin. some fiberglass tanks are double-walled., removal most usts have a life expectancy of 30 years, after which they must be closed by removal (preferred) or abandonment in place.