Views on the cleanup needs at a 144-acre riverside waste site near Millsboro will clash at a public hearing May 29, putting NRG’s aging Indian River power plant once again under a microscope. The Department of Natural Resources and Environmental Control hearing was scheduled to allow community comments on a plan for “remedial action” at the Burton Island Old Ash Landfill, on the east side of the plant. Delmarva Power & Light, the plant’s previous owner, piled coal ash and dredge spoils to a depth of 10 to 20 feet on unlined (without geomembranes) ground and sediments at Burton Island between 1957 and 1979. In 2005, after NRG had purchased the plant, DNREC employees noticed that the ash was washing directly into the river and an adjoining tributary, releasing toxic metals into the water. Subsequent studies found a slightly increased cancer risk to people who consume fish or shellfish from the immediate area, along with some dangers to wildlife and aquatic life. The hearing is about the adequacy of NRG’s proposal to install nearly two miles of stony or fibrous materials to stabilize the shoreline, as well as improvements to some adjacent wetland areas.
Some residents are unhappy with the plan. “It doesn’t address sediment contamination that has occurred near the island, where the ash has eroded into the water, and it doesn’t address the groundwater contamination on the island that’s migrating into the creek,” said John Austin, a Lewes-area resident and former Environmental Protection Agency scientist. One well test found groundwater with contamination far in excess of state cancer risk limits, Austin said. NRG has been under increasing pressure from local and state citizens groups to curb emissions from its coal- and oil-fired boilers and to better control pollution from unlined ash piles. Robert Newsome, a DNREC spokesman, said that the agency wants to hear from the public about Burton Island, and said that the plan could change. “If comments go a certain way, that could result in some additional things taking place,” Newsome said. “Work could start reasonably quickly after that, but we don’t have an exact date” because of the potential for amendments after the hearing.
“It’s not something that we’re trying to put off for an extended period of time,” Newsome said. DNREC already has ordered NRG to commission additional studies for the landfill itself, noting risk to wildlife from consuming ash or water from pools atop the pile. Pollutants at the site include arsenic, barium, cadmium, chromium, copper, lead, mercury, nickel, selenium vanadium and zinc. Cost estimates for the current proposal are unavailable, but DNREC has said that the plant owners would finance the work.
Separate work is continuing under a $6.8 million Delmarva Power cleanup agreement targeting a major, long-undiscovered fuel oil leak that contaminated ground adjacent to the river.
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