HomeMy WebLinkAboutWS-3891_12913_CA_HRE_20170505
May 5, 2017
TO: Mindy Lepard
Winston-Salem Regional Office
NC UST Section
RE: Health Risk Evaluation
Tracking ID: 12913
McMillan Well Sampling Results
2765 Union Ridge Road
Burlington, NC
During this sampling event, three contaminants were detected in the well water. Two of the
contaminants, methyl-tert-butyl ether and 1,2-dichloroethane, were detected at concentrations that exceeded the
applicable standards. 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 contaminant concentrations exceed the applicable standards for using the water for drinking and
cooking, the contaminant concentrations are further analyzed to determine if the water is suitable for other non-
ingestive uses, such as showering, bathing, washing dishes, flushing toilets, and hand washing. The chart below
compares the detected contaminant concentrations with the applicable standards:
Shaded boxes indicate a standard has been exceeded.
* The abbreviation µg/l stands for micrograms of contaminant per liter of water and is roughly equivalent to
parts per billion.
RECOMMENDATION: The methyl-tert-butyl ether and 1,2-dichloroethane concentrations in this well
exceed the applicable standards. Therefore, this water is not recommended for drinking or cooking at this time.
No restrictions are recommended for using the water for other non-ingestive uses, such as showering, bathing,
washing dishes, flushing toilets, and hand washing.
David Lilley, Environmental Toxicologist
Division of Waste Management, NCDEQ
May 5, 2017
TO: Mindy Lepard
Winston-Salem Regional Office
NC UST Section
RE: Health Risk Evaluation
Tracking ID: 12913
McMillan Well Sampling Results (Eff)
2765 Union Ridge Road
Burlington, 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:
* The abbreviation 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
May 5, 2017
TO: Mindy Lepard
Winston-Salem Regional Office
NC UST Section
RE: Health Risk Evaluation
Tracking ID: 12913
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:
* 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