M. Alex Mcgilvary
P.O. Box 99
Boonville, NC 27011
Ph. (336) 367-4145
Fax (336) 367-4772
Residential heating oil USTs.
CSM Environmental, PLLC offers soil testing, site assessment and consulting
services to address the environmental concerns regarding residential UST that are
associated with property transactions. CSM Environmental is registered with the
State of NC as a “Geologic Corporation.”
- Many older homes in the Piedmont Triad area of North Carolina were
constructed with underground storage tanks (USTs) used to store fuel oil
for the heating of residence. Generally, the buried fuel oil tanks at homes
in the Winston Salem and Western Piedmont area are 270 to 550 gallons in
size. Larger homes and those located in the mountains been found to have
1,000 gallon USTs. As these houses have been remodeled and updated,
these buried tanks were often taken out of service and the oil-fired furnace
replaced by another type of heating systems. These inactive or abandoned
USTs often become an environmental concern associated with the sale of
residential property or other types of property transfers.
- Residential heating oil USTs, less than 1,100 gallons, are not subject to NC
Department of Environment and Natural Resources (NCDEQ) regulations
unless they are found to have leaked or are confirmed to be leaking. The
NCDEQ – Underground Storage Tank (UST) Section has set an “Initial
Action Level” of 10 parts per million (ppm) for petroleum constituents in
soil. Soil sample analytical results indicating the presence of heating oil
concentrations greater than 10 ppm are currently considered impacted by
the NCDEQ and require remediation.
- A residential heating oil UST investigation requires a visit to property to
locate the buried tank and collect samples from the immediate tank area.
Typically, the site visit, soil sampling and data collection can be performed
in about 4 hours, depending on the accessibility of the tank area and depth
of the tank burial. The collected sample(s) are evaluated on-site by the
CSM geologist and submitted to a NC Certified laboratory for analytical
testing to detect the presence of heating oil constituents. Generally, the
results of soil sample laboratory testing are available in about 1 week of the
site visit. Should your project have a shorter time deadline, expedited lab
analyses are available at additional cost.
- Upon receipt of the report of laboratory analyses, CSM will review the
field data and laboratory report and make recommendations to the client
regarding the investigative findings. As required by the client or their
lender, CSM Environmental will prepare a letter of findings summarizing
the soil sample laboratory results compared the State Initial Action levels.