Upon affirmative demonstration by an applicant or
installation owner that a ground water discharge will not impair the designated
uses of contiguous waters outside a zone of discharge, the Department shall
establish a zone of discharge for Class G-II ground water in one of the
following ways:
(1) Existing
installations shall have the zone of discharge specified in the permit or
extending to the owner's property line if no zone of discharge is defined in
the permit, until such time as the permit is renewed or modified as provided in
Rule
62-522.500, F.A.C.
(2) A zone of discharge for any installation
that is not an existing installation shall be established in accordance with
paragraph (a) or (b), below, and (c), if applicable, at the applicant's option,
but the zone of discharge shall not extend beyond the property boundary:
(a) Any applicant seeking a zone of discharge
and not electing to use the procedure below shall have a zone of discharge
established by the Department. The boundary of the zone of discharge shall be
100 feet from the site boundary or to the installation's property boundary,
whichever is less, unless a smaller zone of discharge is necessary to protect
the designated use of contiguous waters.
(b) The Department shall establish a zone of
discharge larger than that provided in paragraph (a) above upon an affirmative
demonstration by the applicant that:
1. The
requested zone of discharge will not cause violations of applicable ground
water standards in present and future potable water supplies; and,
2. The requested zone of discharge will not
interfere with existing or designated uses of contiguous waters, or cause a
violation of applicable surface water quality criteria of contiguous waters
outside a permitted mixing zone; and,
3. The economic and social benefits of a zone
of discharge of larger dimensions than those in paragraph (a), above, outweigh
the economic, environmental, and social costs resulting from the larger zone of
discharge.
(c) Where
multiple sites occur within close proximity, a single zone of discharge for the
sites may be established in the same manner as either paragraph (a) or (b),
above.
(3) Unless
otherwise required by Department rule, the following installations shall not be
required to obtain a permit establishing a zone of discharge. These
installations shall have a zone of discharge of 100 feet from the site or to
the installation's property boundary, whichever is less, unless a different
zone is specified in any appropriate Department permit. If the discharge from
the installation threatens to violate ground water standards at the boundary of
the zone of discharge, violates minimum criteria, or otherwise threatens to
impair the designated use of contiguous waters, the Department shall require
the installation owner to obtain a permit that addresses the ground water
discharge if the installation has none, define an appropriate zone of discharge
or modify it if a permit exists, and institute appropriate monitoring plans
pursuant to Rule
62-520.600, F.A.C.
(a) Agricultural fields, ditches and
canals;
(b) Waste management
systems for animal feeding operations exempted from permitting under Chapter
62-670, F.A.C.; and,
(c) Stormwater
facilities.
