WS-8622_37884_CA_HRE_20230110_SW4

January 10, 2023
TO: Ashley Dinkins
Guilford County Department of Health and Human Services for
Winston-Salem Regional Office
NC UST Section
RE: Health Risk Evaluation
Incident # 37884
Charles Pendleton Well Sampling Results
809 NC Highway 62 West
Greensboro, 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)
95182 Chloroform 0.466 80*
Methyl tert-butyl ether 0.680 20
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 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