Rhode Island’s Department of Environmental Management has formally approved a plan to remove contaminated soil on about 100 residential properties in North Tiverton to a depth of two feet.
Homeowners have agreed to accept environmental land-use restrictions to guard against disturbing contaminants below that depth.
Terry Gray, the department’s associate director for air, waste, and compliance, says the agency must still sign off on a work plan that specifies exactly how each pocket of contamination will be addressed.
Residents will get $11.5 million from the Texas-based utility Southern Union to finance the remedial work, expected to take about 12 weeks.
A state investigation found the pollution was a byproduct created when a utility converted coal into gas decades ago.
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