Leaking underground fuel tanks threaten to contaminate drinking water, lakes, streams and homes across Iowa as environmental officials change rules to speed up detection and cleanup.

There are about 6,200 leaking underground storage tanks in the state - and more than 1,500 are considered ongoing contamination risks. Some of the leaking tanks have been problems for more than 15 years. Almost 820 are labeled high-risk.

State officials say they are trying to devise new rules so that the most hazardous sites, which often take years to clean up because of bureaucratic red tape and legal wrangling, can be addressed faster.
The state's backlog is down about 30 percent from five years ago, according to statistics from the Environmental Protection Agency, but about 20 leaking tanks deemed in need of action are on school property.

"We are taking enforcement action against those who don't fix (leaks)," said Elaine Douskey, who supervises the underground storage tank program with the Iowa Department of Natural Resources. "We are staying after them." Left undetected, leaking tanks can cause big problems, as residents in Climbing Hill, an unincorporated town of less than 150 people in Woodbury County in northwest Iowa, discovered.

They learned almost 18 years ago that two underground tanks, including one that belonged to a school, contaminated five residential drinking water wells and one public supply well that belonged to a restaurant. State officials provided bottled water for almost nine years and then switched the town to filtration systems before homeowners received new wells around 2004, said Rochelle Cardinale, an environmental coordinator with the DNR.

Routine tests show the new wells are safe, but some residents still question whether lingering contamination will someday taint that water supply, too.

"I'm worried about where that contamination might go," said Gary Little, who works and lives with his family in the Barn, a local cafe.

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