DENR Releases Groundwater Reconnaissance Well Water Sampling Summary

Monday, August 17, 2015 - 12:00am

The N.C. Department of Environment and Natural Resources today posted a summary of results from a reconnaissance sampling of groundwater quality in the vicinity of Duke Energy’s Allen Steam Station, Buck Steam Station and Marshall Steam Station coal-fired power plants.

The study provides a limited evaluation of the distribution of metals and other parameters that may be naturally occurring in the groundwater, and that may also be associated with coal burning activities. 
This study was managed by the DENR Division of Water Resources Mooresville Regional Office and involved the collection of samples from twenty-four (24) water supply wells near the above mentioned coal–fired steam stations. In accordance with the Coal Ash Management Act, the groundwater samples collected were analyzed for the same constituents and parameters as the private and public wells tested near coal ash facilities under the well water testing program, and in support of the comprehensive site assessments. Test well locations were chosen for this study based on the following criteria:

• Located in areas that are not hydraulically connected to groundwater beneath Duke Energy’s coal-fired power plant facilities
• Positioned across surface water and groundwater divides from the facilities
• Situated in the same geologic units as the coal ash impoundments and private wells already being tested near coal ash facilities
• Targeting “newer” water supply wells to minimize the influence of older, potentially poorly constructed wells or aging well maintenance issues that could affect the samples. The tested reconnaissance water supply wells were installed between from 1996 and 2013.

For full information and results visit the Coal Ash Blog.