RA-2805_18206_CA_HRE_20230823_Determinations wsw 3

August 23, 2023 TO: Mark Petermann
NC UST Section RE: Health Risk Evaluation Incident # 18206 Myrtle Pearce Well Sampling Results
1200 West Academy Street Fuquay-Varina, NC During this sampling event, two contaminants were 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 any contaminant concentrations exceed applicable standards for using the water for drinking and cooking, those contaminant concentrations are 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 concentrations with the applicable standards: Sample ID Contaminant Concentration (µg/L) MCL (µg/L) 2L (µg/L)
92675210013 Toluene 0.95 1,000
Total Xylenes 0.81 10,000
µg/L – Stands for micrograms of contaminant per liter of water and is roughly equivalent to parts per
billion.
RECOMMENDATION: None of the contaminants detected exceeded the applicable water standards. Therefore, no restrictions on the use of this water are recommended at this time.

David Lilley, Environmental Toxicologist Division of Waste Management, NCDEQ