Displaying items by tag: tva carbon

TVA service area and power generation assets.  Tennessee Valley Authority (TVA) | GAO-23-105375

GAO report concludes TVA is flat-footed on climate-change risks to infrastructure

This story was originally published by Tennessee Lookout.

WASHINGTON — Extreme weather patterns have sparked several improvements to the climate resiliency of Tennessee Valley Authority electrical infrastructure over the past two decades. 

A report from a government watchdog, however, found the huge utility still has work to do in mitigating climate hazards to the regional power grid. (Bitter cold around Christmas led TVA to implement rolling blackouts).

“TVA has taken several steps to manage climate-related risks,” the Jan. 30 report from the Government Accountability Office said. “However, TVA has not conducted an inventory of assets and operations vulnerable to climate change, or developed a resilience plan that identifies and prioritizes resilience measures to address specific risks.” 

One issue: The Southeast has experienced a period of accelerated warming since the 1960s. Among cities in the region, 61 percent are experiencing worsening heat waves, a percentage greater than anywhere else in the country, according to the GAO. 

The report came in response to a five-part joint request for information on the climate resiliency of U.S. infrastructure, from U.S. Senate Energy and Natural Resources Committee Chair Joe Manchin III of West Virginia and Environment and Public Works Committee Chair Tom Carper of Delaware. The two Democrats sent their request to the GAO on May 13, 2019. 

The Tennessee Valley Authority’s Cumberland Fossil Plant in Stewart County, Tennessee is leaking boron at 22 times safe levels, as well as unsafe levels of arsenic, cobalt, lithium and molybdenum, according to a recent report prepared by environmental groups using TVA’s own data. Tennessee Valley Authority

Report: TVA’s Allen Fossil Plant in Memphis ranks No. 10 in most contaminated U.S. sites

This story was originally published by Tennessee Lookout.

The Tennessee Valley Authority’s coal ash dumps in Memphis rank among the worst in the nation for contamination of groundwater with cancer-causing toxins, according to a new report that relied on the power provider’s own records.

TVA’s coal ash dumps at the now-defunct Allen Fossil Plant rank as the 10^th worst contaminated sites in the country in a report released earlier this month that examined groundwater monitoring data from coal-fired plant operators, including TVA.

TVA’s own monitoring data shows its Memphis dumps are leaking arsenic at levels nearly 300 times safe drinking water limits. Unsafe levels of boron, lead and molybdenum are also being recorded there.

The report, prepared and published by the Environmental Integrity Project (EIP) and Earthjustice, shows that coal ash dumps at every TVA coal-fired facility across Tennessee are leaking dangerous contaminants at unsafe levels, including arsenic, cobalt, lithium, molybedenum, boron, lead and sulfate, into groundwater.

A TVA ash pond at Watts Bar ruptured with disastrous consequences in December 2008.  Wikipedia 

Report contends coal plant operators are shirking responsibilities on ash cleanup

This story was originally published by Tennessee Lookout. 

NASHVILLE — In the wake of major coal ash spills from power plant containment ponds in Tennessee and into the Dan River along the North Carolina and Virginia border, the federal Environmental Protection Agency in 2015 laid out the first federal rules for managing the ash, one of the nation’s largest waste streams, and the toxins it contains.