Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 620 - GROUNDWATER QUALITY
Subpart B - GROUNDWATER CLASSIFICATION
Section 620.230 - Class III: Special Resource Groundwater
Universal Citation: 35 IL Admin Code ยง 620.230
Current through Register Vol. 48, No. 38, September 20, 2024
Except as provided in Section 620.250, Special Resource Groundwater is:
a) Groundwater that is determined by the Board, pursuant to the procedures set forth in Section 620.260, to be:
1) Demonstrably unique (e.g.,
irreplaceable sources of groundwater) and suitable for application of a water
quality standard more stringent than the otherwise applicable water quality
standard specified in Subpart D; or
2) Vital for a particularly sensitive
ecological system.
b) Groundwater that contributes to a dedicated nature preserve that is listed by the Agency as set forth below:
1) A written
request to list a dedicated nature preserve under this subsection must contain,
at a minimum, the following information:
A) A
general description of the site and the surrounding land use;
B) A topographic map or other map of suitable
scale denoting the location of the dedicated nature preserve;
C) A general description of the existing
groundwater quality at and surrounding the dedicated nature preserve;
D) A general geologic profile of the
dedicated nature preserve based upon the most reasonably available information,
including but not limited to geologic maps and subsurface groundwater flow
directions; and
E) A description of
the interrelationship between groundwater and the nature of the site.
2) Upon confirmation by the Agency
of the technical adequacy of a written request, the Agency shall publish the
proposed listing of the dedicated nature preserve in the Environmental Register
for a 45-day public comment period. Within 60 days after the close of the
public comment period, the Agency shall either publish a final listing of the
dedicated nature preserve in the Environmental Register or provide a written
response to the requestor specifying the reasons for not listing the dedicated
nature preserve.
3) At least once
annually, the Agency shall publish in the Environmental Register a complete
listing of all dedicated nature preserves listed under this subsection
(b).
4) For purposes of this
Section the term "dedicated nature preserve" means a nature preserve that is
dedicated pursuant to the Illinois Natural Areas Preservation Act [525 ILCS 30
].
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