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Ban MTBE

What's New

In a victory for clean water, Rhode Island has adopted a new law, signed by Gov. Carcieri, that bans MTBE-infused gasoline from being sold in pumps across the state. Safer additives like ethanol will now be used statewide.

MTBE is bad news for our drinking water because it moves quickly through soil and into groundwater. MTBE is listed by the Environmental Protection Agency (EPA) as a possible carcinogen. It also leaves water tasting like turpentine. MTBE has been found in groundwater in 23 of Rhode Island's 29 cities and towns.

Background

MTBE is not a new threat to our drinking water supply. In recent years thousands of pages of internal industry documents and sworn depositions have shown that the MTBE industry was well aware of the hazards of MTBE by the early 1980s. Despite this knowledge, MTBE has been widely used in gasoline across the country.

Due to its chemical composition, MTBE dissolves easily in water and does not "cling" well to soil, allowing it to migrate faster and farther in the ground than other gasoline components.

This makes MTBE more likely to contaminate public water systems and private wells than most other gasoline components. MTBE can render water undrinkable because of its harsh, turpentine-like taste.

In 2001, Pascoag residents were told not to use their tap water for drinking, food preparation or bathing for four months because MTBE had contaminated their water supply.

As is common with many chemicals in widespread use, very few studies have examined the effects of MTBE on human health. There have been reports of nausea, vomiting, dizziness, headaches, and eye, nose and throat irritation following exposure to MTBE.

Long-term exposure to MTBE causes cancer in laboratory animals, among other effects. In the absence of additional data, EPA has concluded, "MTBE poses a potential for human carcinogenicity at high doses."

In a victory for clean water, Rhode Island has adopted a new law, signed by Gov. Carcieri, that bans MTBE-infused gasoline from being sold in pumps across the state. Safer additives like ethanol will now be used statewide.