WS-6093_22446_CA_HRE_20130306

1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: [phone] \ Internet: http://portal.ncdenr.org/web/wm
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North Carolina Department of Environment and Natural Resources
Division of Waste Management Pat McCrory Dexter R. Matthews Governor Director
John E. Skvarla, III Secretary March 6, 2013 TO: Herb Berger
NC UST Section
FROM: David Lilley Environmental Toxicologist NC Division of Waste Management
RE: Health Risk Evaluation
Incident # 22446 Moody’s Grocery Don Moody Well Sampling Results 1020 Old Hwy 21
State Road, NC
During this sampling event, six 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:

Herb Berger March 6, 2013
Page 2 of 2
Sample ID Contaminant Concentration (ug/l)* MCL (ug/l) 2L (ug/l)
92146489005 Diisopropyl ether 7.2 70
1,2-Dichloroethane 1.4 5
Ethylbenzene 0.60 700
Isopropylbenzene 0.79 70**
n-Propylbenzene 0.54 70
1,2,4-Trimethylbenzene 1.2 400
* The abbreviation ug/l stands for micrograms of contaminant per liter of water and is roughly equivalent to parts per billion.
** This value is based on odor, the health based value is 700 ug/L. 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. /dl