WS-2669_6146_CA_HRE_20140813_David_Sheets

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North Carolina Department of Environment and Natural Resources
Pat McCrory Governor John E. Skvarla, III Secretary August 13, 2014 TO: Herb Berger NC UST Section

RE: Health Risk Evaluation Incident #6142 Moore’s Exxon David Sheets Well Sampling Results
107 Trading Post Road
Glendale Springs, NC During this sampling event, one contaminant was detected in the well water. The standards used to determine if the water is suitable for drinking and cooking are the United States
Environmental Protection Agency’s Maximum Contaminant Levels (MCLs) or, if no MCLs exist,
North Carolina Groundwater Standards (2L). If the contaminant concentration exceeds the applicable standard for using the water for drinking and cooking, the contaminant concentration is further analyzed to determine if the water is
suitable for other household uses, such as showering, bathing, washing dishes, flushing toilets, and
hand washing. The chart below compares the detected contaminant concentration with the applicable standard: Sample ID Contaminant Concentration (ug/l)* MCL (ug/l) 2L (ug/l)
14G0490-07 Methyl tert-Butyl Ether 0.37 20
* The abbreviation ug/l stands for micrograms of contaminant per liter of water and is roughly equivalent to parts per billion. RECOMMENDATION: The detected contaminant did not exceed the applicable water standard. Therefore, no restrictions on the use of this water are recommended at this time.

David Lilley, Environmental Toxicologist Division of Waste Management, NCDENR