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HomeMy WebLinkAboutMO-6637_27368_CA_HRE_20230720 July 20, 2023 TO: Ryan Mills Mooresville Regional Office NC UST Section RE: Health Risk Evaluation Incident # 27368 Larry N. Price Well Sampling Results 31 Price Court Stony Point, NC During this sampling event, three 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) µg/L – Stands for micrograms of contaminant per liter of water and is roughly equivalent to parts per billion. * As total trihalomethanes. RECOMMENDATION: None of the contaminants detected exceed the applicable water standards. Therefore, no restrictions on the use of this water are recommended at this time. Although none of the contaminant levels exceed the applicable regulatory values, the level of bromodichloromethane in this well exceeds 0.5 µg/L, the value recommended by the North Carolina Department of Health and Human Services (DHHS). The well user may want to contact the Private Well and Health program at (919) 707- 5900 for more information. David Lilley, Environmental Toxicologist Division of Waste Management, NCDEQ July 20, 2023 TO: Ryan Mills Mooresville Regional Office NC UST Section RE: Health Risk Evaluation Incident # 27368 Gary G. Glawtney Well Sampling Results 174 Gwaltney Road Stony Point, NC During this sampling event, four 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) µg/L – Micrograms of contaminant per liter of water, roughly equivalent to parts per billion. RECOMMENDATION: None of the contaminants detected exceed the applicable water standards. Therefore, no restrictions on the use of this water are recommended at this time. Although none of the contaminant levels exceed the applicable regulatory values, the level of 1,2-dichloroethane in this well exceeds 0.5 µg/L, the value recommended by the North Carolina Department of Health and Human Services (DHHS). The well user may want to contact the Private Well and Health program at (919) 707- 5900 for more information. David Lilley, Environmental Toxicologist Division of Waste Management, NCDEQ July 20, 2023 TO: Ryan Mills Mooresville Regional Office NC UST Section RE: Health Risk Evaluation Incident # 27368 Jimmy R. & Dora R. Glawtney Well Sampling Results 177 Gwaltney Road Stony Point, 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 (µg/L) MCL (µg/L) 2L (µg/L) µg/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, NCDEQ