This question is referred to an article providing several facts about Methyl tertiary-butyl ether (MTBE); however, it is required to identify and describe the author’s purpose for writing the article.
In such a case, it is possible for us to identify that both the environmental and economical affectations due to the leak of MTBE-containing gasoline to the soil and water in Santa Monica is the author's purpose for writing the article.
Thus, we can see how the author describes the problems the population had due to the aforementioned leak and how they pretended to make oil companies (ExxonMobil, Chevron Corporation, and Shell) to account for the disaster and pay for it, both economically and environmentally, and provide drinking water to the affected population.
Moreover, it describes the removed amount of this pollutant from the soil and groundwater, some of the available methods to do so, and why it was banned as a fuel additive, not only in California, but also in other States in order to diminish its environmental and health impacts, even when there is a threshold of 20-40 parts per million in drinking water.
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