APRIL 30, 2015
Document Description:
This Technical Guidance provides tools and strategies to
aid the investigator in developing lines of evidence to support the
determination that one or more contaminants are migrating onto a site from an
off-site property.
It describes the
regulatory requirements outlined in N.J.A.C. 7:26E-3.9 for investigating and
documenting the presence of an off-site source of contamination, and presents
the administrative approach for notifying the Department and issuing a Remedial
Action Outcome (RAO) to address the contamination.
This Technical Guidance was developed with stakeholder
input by the NJDEP Off-site Source Investigation Technical Guidance
Committee. The Department would like to
thank Committee Chairs George Nicholas and Christina Page, and all Committee Members
for their time and effort in developing this Guidance document.
The Technical
Guidance and associated Response to Comments document are available for viewing
and downloading on the SRP's Guidance Library webpage at www.nj.gov/dep/srp/guidance.
Technical guidance may be used immediately upon issuance.
However, the Department recognizes the challenge of using newly issued
technical guidance when a remediation affected by the guidance may have already
been conducted or is currently in progress.
To provide for the reasonable
implementation of new technical guidance, the Department will allow a 6-month
“phase-in” period between the date the technical guidance is issued final (or
revised) and the time it should be used.