Current through all regulations passed and filed through December 16, 2024
(A) All class I
hazardous waste injection wells shall be sited such that they inject into a
formation that is beneath the lowermost formation containing, within one
quarter mile of the well bore, an underground source of drinking
water.
(B) Upon a finding by the
director, the siting of class I hazardous waste injection wells shall be
limited to areas that are geologically suitable. The director shall determine
geologic suitability based upon information submitted by the applicant
including the following:
(1) An analysis of the structural and
stratigraphic geology, the hydrogeology, and the seismicity of the
region.
(2) An
analysis of the local geology and hydrogeology of the well site, including, at
a minimum, detailed information regarding stratigraphy, structure and rock
properties, aquifer hydrodynamics and mineral resources.
(3) A determination that the geology of the
area can be described confidently and that limits of waste fate and transport
can be accurately predicted through the use of models.
(C) Class I hazardous waste injection wells
shall be sited such as follows:
(1) The
injection zone has sufficient permeability, porosity, thickness and areal
extent to prevent migration of fluids into USDWs.
(2) The confining zone:
(a) Is laterally continuous and free of
transecting, transmissive faults or fractures over an area sufficient to
prevent the movement of fluids into USDW.
(b) Contains at least one formation of
sufficient thickness and with lithologic and stress characteristics capable of
preventing vertical propagation of fractures.
(D) The owner or operator shall submit
information to the director adequate to demonstrate one of the
following:
(1) The confining zone is
separated from the base of the lowermost USDW by at least one sequence of
permeable and less permeable strata that will provide an added layer of
protection for the USDW in the event of fluid movement in an unlocated bore
hole or transmissive fault.
(2)
Within the area of review, the piezometric surface of the fluid in the
injection zone is less than the piezometric surface of the lowermost USDW,
considering density effects, injection pressures and any significant pumping in
the overlying USDW.
(3)
There is no USDW present.
(E)
All new class I
injection wells and wells converted to a class I injection well permitted after
the effective date of rules in this chapter shall comply with the location
restrictions in paragraph (F) of this rule unless the new class I injection
well is located at a commercial complex, or industrial complex, or site, or
location, or tract of land with an existing class I injection well initially
permitted prior to the effective date of this rule. Existing class I injection
wells initially permitted prior to the effective date of this rule are not
required to meet the location restrictions in paragraph (F) of this
rule.
(F)
On and after the effective date of this rule, all of
the following apply to a new class I injection well, and a well proposed to be
converted to a class I injection well. A new class I injection well, and a well
proposed to be converted to a class I injection well shall not be
located:
(1)
Within the boundary of a flood hazard area as delineated on
the "National Flood Insurance Rate Map."
(2)
Nearer than five
hundred feet from the boundary of the facility or property the Class I well is
to be located on. This requirement does not apply if the class I injection well
is proposed to be on a site that is zoned industrial.
(3)
Within one
thousand feet of and within any of the following:
(a)
The five-year
time of travel associated with a public drinking water supply, as delineated or
endorsed under the "Source Water Assessment and Protection Program";
and
(b)
The emergency management zone of a public water system
intake.
(4)
Within seven hundred fifty feet of an occupied private
dwelling or a public building that may be used as a place of assembly,
education, entertainment, lodging, or occupancy by the public. However, the
owner or the person with legal authority for the private dwelling or public
building may consent in writing to a location of the class I injection well to
a distance less than seven hundred fifty feet if the applicant for the class I
injection well submits the written consent with the
application.
(5)
In or within one hundred feet of a wetland or any
surface waters that are waters of the state as defined in section
6111.01 of the Revised
Code.
(6)
Within one hundred feet of ponds, developed springs,
and water wells. However, the owner or the person with legal authority for the
ponds, developed springs, and water wells may consent in writing to a location
of the class I injection well to a distance less than one hundred feet if the
applicant for the class I injection well submits the written consent with the
application.