Method 3 relies upon detailed information about the site, the
oil and/or hazardous material, and potential exposures to Human and
Environmental Receptors under all current and reasonably foreseeable Site
Activities and Uses to characterize the risk of harm. The scope and level of
effort of the Method 3 Risk Characterization shall reflect the site-specific
nature of this Method, and the information used to characterize the risk shall
be sufficiently documented to demonstrate that the Response Action Performance
Standard, described in
310
CMR 40.0191, has been met.
(1) The Method 3 Risk Characterization shall
be performed in a manner consistent with scientifically acceptable risk
assessment practices, and consider guidance published by the Department and
EPA.
(2) In performing a Method 3
Risk Characterization, the objective shall be to provide a conservative
estimate of the impact that the oil and/or hazardous material may have on the
Human and Environmental Receptors at the disposal site and in the surrounding
environment.
(3) This Risk
Characterization process makes use of existing standards, Method 3 Ceiling
Limits in Groundwater and Soil, quantitative estimates of cancer and non-cancer
health risks, and both quantitative and qualitative evaluations of risk to
public welfare and the environment to determine the need for a remedial action
or to demonstrate that a condition of No Significant Risk exists or has been
achieved.
(a) The Method 3 characterization of
the risk of harm to human health is described in
310
CMR
40.0993.
(b) The Method 3 characterization of the risk
of harm to public welfare is described in
310
CMR
40.0994.
(c) The Method 3 characterization of the risk
of harm to the environment is described in
310
CMR
40.0995.
(d) The list of Method 3 Ceiling Limits in
Groundwater and Soil is in
310
CMR
40.0996(7).
(4) The risk of harm to safety
shall also be characterized, as described in
310
CMR
40.0960.
Notes
Amended by
Mass
Register Issue 1407, eff.
12/27/2019.
Amended by
Mass
Register Issue 1503, eff.
3/1/2024.
Amended by
Mass
Register Issue S1516, eff.
3/1/2024.
