EPA: More sampling needed due to vapor intrusion

RIVERSIDE, Ohio (WDTN) — A representative of the U.S. Environmental Protection Agency who is overseeing the sampling of homes in the area of Hypathia and Bushnell Avenues told Riverside City Council members Thursday night that 180 homes have been tested for vapor intrusion so far, but more need to be.

The EPA has shown that cancer-causing chemicals have been released into indoor air from the groundwater, though the public water supply is not contaminated.  2 NEWS Investigates first exposed the public health threat in November of 2013.

Steve Renninger of the U.S. EPA said as of now 70 of the homes tested require a mitigation system that costs about $5,000. The EPA pays for the systems but homeowners need to be prepared to pay about $75 more a year for electricity.

Renninger said funding for this first phase of critical response will run out in December, so a private party will need to carry on the costs.  He told 2 NEWS Investigates the source of the contamination has not yet been determined.

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