Ohio Admin. Code 3745-400-10 - Ground water monitoring
(A)
Ground water monitoring well system. The owner or operator of any facility
disposing of debris on or after September 30, 1996, shall have a ground water
monitoring well system unless the limits of debris placement meet the criteria
in paragraph (B) of rule
3745-400-09
of the Administrative Code. Ground water monitoring shall be implemented
no
not later
than required by paragraph (R) of rule
3745-400-11
of the Administrative Code. The number, spacing, and depth of ground water
monitoring wells included in the monitoring well system shall be capable of
determining the quality of the ground water under the facility and be based on
site-specific hydrogeologic information contained in the site characterization
report required in paragraph (C) of rule
3745-400-09
of the Administrative Code. The monitoring well system is not required to be
capable of determining the impact of the facility on the quality of the ground
water beneath the facility.
The owner or operator shall describe the ground water monitoring well system in a plan as part of the facility design plan required by rule 3745-400-07 of the Administrative Code. The ground water monitoring well system plan shall be certified by a qualified ground water scientist that the system meets the requirements of paragraph (A) of this rule. If the ground water monitoring well system is constructed in phases, each phase shall be described by a qualified ground water scientist in the license application submitted prior to the placement of debris in the fill area relevant to that phase. The configuration of the ground water monitoring well system at all stages of the facility development shall be described using maps and a narrative.
(1) The ground water monitoring well system
shall include a sufficient number of background and downgradient monitoring
wells, installed at appropriate locations and depths, to yield ground water
samples from the first continuous significant zone of saturation underlying the
facility.
(2) All monitoring wells
shall be designed, installed, and developed in a manner that allows the
collection of ground water samples that are representative of ground water
quality in the geologic unit being monitored. The ground water monitoring well
system plan shall contain a drawing with specifications of the typical
construction of any wells not yet constructed. At a minimum, the ground water monitoring well system plan shall
include the following:
(a) Monitoring wells
shall be cased in a manner that maintains the integrity of the monitoring well
boreholes.
(b) The annular space,
i.e., the space between the borehole and the well casing, above the sampling
depth shall be sealed to prevent the contamination of the samples and the
ground water.
(c) The casing shall
be screened or perforated and surrounded by sand or gravel in such a way that
allows for the minimization of the passage of formation materials into the
well.
(3) Upon the
installation of ground water monitoring wells, a construction certification
report shall be submitted in accordance with rule
3745-400-08
of the Administrative Code.
(B)
Reporting
Sampling and
reporting . Annually, at least by
not later than September thirtieth of each year,
the owner or operator of a licensed facility shall determine the quality of
ground water from wells that are part of the ground water monitoring well
system required in paragraph (A) of this rule and
certain constituents in the leachate from the leachate collection system
required in paragraph (F) of rule
3745-400-07
of the Administrative Code. The leachate quality data shall be used to
supplement ground water monitoring data to determine if the leachate could be
causing any changes in the quality of the ground water. These determinations
shall be submitted at least annually to the licensing authority in a report
signed by a qualified ground water scientist. The ground water monitoring
determinations and report do not have to determine the impact of the facility
on the quality of the ground water beneath the facility. The report shall
provide the following:
(1) The ground water
quality data required by paragraph (C) of this rule displayed using tables,
tri-linear diagrams, stiff diagrams, time vs. concentration plots or any other
format deemed appropriate by the qualified ground water scientist. The report
shall describe any significant ground water quality changes over time and
differences between up-gradient and down-gradient wells
(2) A narrative of the sampling and analysis
procedures used. After the initial report submittal, only amendments to the
already submitted sampling and analysis procedures need to be submitted with
each subsequent report. The sampling and analysis procedures shall be
protective of human health and the environment and shall be designed to ensure
monitoring results that provide an accurate representation of ground water
quality. The narrative of the sampling and analysis procedures shall include a
detailed description of the equipment, procedures, and techniques used for the
following:
(a) Measurement of ground water
elevations.
(b) Collection of
ground water samples, including the following:
(i) Well evacuation.
(ii) Sample withdrawal.
(iii) Sample containers and
handling.
(iv) Sample
preservation.
(c)
Performance of field analysis, including the following:
(i) Procedures and forms for recording raw
data and the exact location, time, and facility-specific conditions associated
with the data acquisition.
(ii)
Calibration of field devices.
(d) Decontamination of equipment.
(e) Analysis of ground water
samples.
(f) Chain of custody
control, including the following:
(i)
Standardized field tracking reporting forms to record sample custody in the
field prior to and during shipment.
(ii) Sample labels containing all information
necessary for effective sample tracking.
(g) Field and laboratory quality assurance
and quality control, including the following:
(i) Collection of replicate
samples.
(ii) Submission of
field-bias blanks.
(iii) Potential
interferences.
(3) The ground water elevation for the first
continuous significant zone of saturation underlying the facility documented on
a potentiometric map(s)
maps .
(4) Documentation that the ground water
monitoring well system at the facility continues to meet the requirements of
rule
3745-400-09
of the Administrative Code.
(5)
Documentation that the design, and methods of installation, and development, or
abandonment of any monitoring wells, piezometers, and other measurement,
sampling, and analytical devices that have been installed or abandoned since
the last report.
(6) Documentation
of the qualifications of the certifying qualified ground water
scientist.
(C) Ground
water monitoring. The owner or operator shall determine the concentration or
value of the parameters listed in the appendix of
this rule 3745-400-21 of the Administrative
Code in ground water and those additional
leachate parameters required to be monitored in ground
water pursuant to paragraph (B) of rule
3745-400-20
of the Administrative Code. The concentration or value of the parameters shall
be determined in accordance with the following schedule:
(1) The owner or operator shall, whenever
ground water samples are drawn from a monitoring well, field analyze the
samples for parameters 1, 2, and 3 listed in the
appendix of this rule
temperature, pH, specific
conductance, and turbidity .
(2)
During the
initial year of ground water monitoring, the
The owner or operator of a
facility with a leachate monitoring system as defined in paragraph (A)(1) of
rule
3745-400-20
of the Administrative Code shall do the following:
(a) At least quarterly
during the initial year of ground water
monitoring , determine the initial background concentration or value in
ground water samples from all monitoring wells for parameters
1 to 19
16-28
listed in the appendix of this rule
3745-400-21 of the Administrative Code .
(b) During the first quarterly analysis
in the initial year of ground water
quality
monitoring , also determine the concentration or value
for parameters 20 to 64
29-74 listed in the
appendix of this rule 3745-400-21 of the
Administrative Code .
(c)
At least once, determine the concentrations or
values in the leachate for parameters 1 to 19 listed in the appendix of this
rule.
After the initial year, the owner or
operator shall at least annually sample all monitoring wells and analyze the
samples for the parameters 16-28 listed in rule
3745-400-21
of the Administrative Code and those additional leachate parameters required to
be monitored in ground water by paragraph (B) of rule
3745-400-20
of the Administrative Code.
(3)
After the
initial year, the owner or operator shall at least annually sample all
monitoring wells and the leachate collection system and analyze the samples for
the parameters 1 to 19 listed in the appendix of this rule.
The owner or operator of a facility without a leachate
monitoring system as defined in paragraph (A)(1) of rule
3745-400-20
of the Administrative Code shall do the following:
(a)
At least
quarterly during the initial year of ground water monitoring, determine the
initial background concentration or value in ground water samples from all
monitoring wells for parameters 1-74 listed in rule
3745-400-21
of the Administrative Code.
(b)
After the initial
year, at least annually sample all monitoring wells and analyze the samples for
the parameters required to be monitored in ground water by paragraph (B) of
rule
3745-400-20
of the Administrative Code.
(D) Ground water assessment. The licensing
authority or director may order the owner or operator to conduct a ground water
assessment to determine the concentration of possible contaminants, and their
extent and rate of migration within the ground water if the licensing authority
or director determines that the facility may be affecting ground water quality.
Such a determination shall be supported by leachate quality reports, if required by paragraph (B) of this
rule
sampling data and the following:
(1) The ground water quality reports from a
qualified ground water scientist.
(2) Water quality data from documented
leachate releases to seeps, springs, streams or other receptors.
(E) Ground water assessment plan
and implementation. The ground water assessment shall include the submittal and
implementation of a ground water assessment plan prepared by a qualified ground
water scientist to the licensing authority or as required by the orders issued
by the licensing authority or director.
(1)
The ground water assessment plan shall include the following sampling and
analysis:
(a) Sampling of the affected
well(s)
wells
and background well(s)
wells and analysis of those samples for all leachate
or leachate-derived constituents including those constituents listed in
the appendix of this rule
3745-400-21 of the Administrative Code .
(b)
Within
Not later than
ninety days of
after sampling the affected well(s)
wells and
background well(s)
wells as required by this paragraph, sampling of all
other monitoring wells and analysis of those samples for those leachate or
leachate-derived constituents found to be above background levels in the
affected monitoring wells.
(c)
Sampling at least annually all monitoring wells included in the ground water
assessment and analysis of those samples for all the parameters listed in
the appendix
rule
3745-400-21
of the Administrative Code . A monitoring well shall be considered part of
the ground water assessment if it is needed to determine the concentration of
any contaminants, and their extent and rate of migration within the ground
water.
(2) The ground
water assessment plan also shall include the following information:
(a) A summary of the hydrogeologic conditions
at the facility.
(b) A description
of the detection monitoring program implemented by the facility, including the
following:
(i) The number, location, depth,
and construction of detection monitoring wells with documentation
(ii) A summary of detection monitoring ground
water analytical data
(iii) A
summary of statistical analyses previously applied to the data, if
any.
(c) A detailed
description of the investigatory approach to be followed during the assessment,
including but not limited to the following:
(i) The proposed number, location, depth,
installation method, and construction of additional monitoring wells for
assessment purposes.
(ii) The
proposed method(s)
methods for gathering additional hydrogeologic
information.
(iii) The planned use
of supporting methodology, e.g., soil, gas, or geophysical surveys.
(d) A detailed description of the
techniques, procedures, and analytical equipment to be used for ground water
sampling during the assessment, including, but not limited to the items listed
in paragraph (B)(2) of this rule.
(e) A detailed description of the data
evaluation procedures to be used, including but not limited to the following:
(i) Planned use of statistical data
evaluation.
(ii) Planned use of
computer programs and/or
or models.
(iii) Planned use of previously gathered
information
(iv) Criteria which
will be utilized to determine if additional assessment activities are
warranted.
(f) A
schedule of implementation.
(3) All ground water monitoring wells not
included in the ground water assessment shall continue to be monitored in
accordance with paragraph (C) of this rule.
(4) The owner or operator shall make a
determination of the concentration of any contaminants, and their extent and
rate of migration within the ground water within the time frame specified in
the submitted ground water assessment plan or within the orders issued by the
licensing authority or director. The owner or operator shall submit to the
licensing authority or as required by the orders issued by the licensing
authority or director, not later than fifteen days after making this
determination, a written ground water assessment report prepared by a qualified
ground water scientist containing an assessment of the ground water quality
including all data generated as part of the implementation of the ground water
assessment plan. If the qualified ground water scientist certifies that the
facility has not impacted the quality of ground water beneath the facility,
then the owner or operator may resume monitoring in accordance with paragraph
(B) of this rule unless ordered by the licensing authority or director to
continue ground water assessment.
Notes
Promulgated Under: 119.03
Statutory Authority: 3714.02
Rule Amplifies: 3714.02
Prior Effective Dates: 9/30/1996, 8/31/2002
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