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The
criteria that we have to meet for soil analysis varies from state to
state. In NY the Dept. of Environmental Conservation (DEC)
 has set fourth
the standard in which we have to meet for soil and water analysis. On the
most basic of petroleum tank removals usually one soil sample will be
taken.
In NY in order to meet clean up standards for contaminated soil
removal, methods EPA 8021 & EPA 8270 are enforced. This analysis will
show volatile and semi-volatile compounds that are found in most petroleum
based fuels. The DEC has set standards in which we must meet for each of
these compounds in order to either show that there is no contamination on
site, or that the release has been cleaned up to these standards.
In CT. The Dept. of Environmental Protection (DEP) has set fourth
the standard in which we have to meet certain criteria for soil and water
analysis. CT. uses a soil sampling method known as a TPH (total petroleum
hydrocarbons ). A TPH is measured in PPM (parts per million) which in the
state of CT. allows a level of 500 ppm before remediation is necessary for
a residential tank. A more accurate analysis which is referred to as a
CT-ETPH can be used when a TPH sample is border line to the required
remediation standard. This method extracts any "false" petroleum
hydrocarbon in the soil, such as any natural decaying material in the
soil.
These sampling protocols can be a great deal of help when you are
unsure of the status of your tank. We can refer you to a lab in your area
that will make you aware of the condition of the soil around your tank, so
there are no suprises once the tank is removed. With the aid of probing
and soil analysis, you will have a very good idea of what you're in for.
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