WS-3891_12913_CA_HRE_20160516_2773

PAT MCCRORY
Governor

DONALD R. VAN DER VAART
Secretary

MICHAEL SCOTT
Director

State of North Carolina | Environmental Quality | Waste Management
1646 Mail Service Center | 217 West Jones Street | Raleigh, NC 27699-1646
919 707 8200 Telephone

May 16, 2016

TO: Michael Rogers
Winston-Salem Regional Office
NC UST Section

RE: Health Risk Evaluation
Tracking ID: 12913
Arlene Lassiter Well Sampling Results
2773 Union Ridge Road
Burlington, 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)
92294913001 1,2-Dichloroethane 1.2 5
Diisopropyl ether 8.2 70
Methyl-tert-butyl ether 5.9 20
* The abbreviation 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