35 Ill. Adm. Code 734.330
Site Investigation Completion Report
Section 734.330 Site Investigation Completion Report
Within 30 days after completing the site investigation,
the owner or operator shall submit to the Agency for approval a site
investigation completion report
[415 ILCS 5/57.7(a)(5)]. At a minimum, a
site investigation completion report must contain the following:
a) A history of the site
with respect to the release;
b) A description of the
site, including but not limited to the following:
1) General
site information, including but not limited to the site's and surrounding area's
regional location; geography, hydrology, geology, hydrogeology, and topography;
existing and potential migration pathways and exposure routes; and current and
projected post-remediation uses;
2) One
or more maps meeting the requirements of Section 734.440 that show the
locations of all borings and groundwater monitoring wells completed as part of
site investigation, and the groundwater flow direction;
3) One
or more maps showing the horizontal extent of soil and groundwater
contamination exceeding the most stringent Tier 1 remediation objectives of 35
Ill. Adm. Code 742 for the applicable indicator contaminants;
4) One
or more map cross-sections showing the horizontal and vertical extent of soil
and groundwater contamination exceeding the most stringent Tier 1 remediation
objectives of 35 Ill. Adm. Code 742 for the applicable indicator contaminants;
5) Soil
boring logs and monitoring well construction diagrams meeting the requirements
of Sections 734.425 and 734.430 of this Part for all borings drilled and all
groundwater monitoring wells installed as part of site investigation;
6) Analytical
results, chain of custody forms, and laboratory certifications for all samples
analyzed for the applicable indicator contaminants as part of site
investigation;
7) A
table comparing the analytical results of samples collected as part of site
investigation to the most stringent Tier 1 remediation objectives of 35 Ill.
Adm. Code 742 for the applicable indicator contaminants; and
8) The
water supply well survey documentation required pursuant to Section 734.445(d)
of this Part for water supply well survey activities conducted as part of site
investigation; and
c) A
conclusion that includes, but is not limited to, an assessment of the
sufficiency of the data in the report.