Current through Register Vol. 56, No. 18, September 16, 2024
(a) Each discharge to
ground water permit, except those identified in
7:14A-7.3(c), (d) and
(e), and those permitted by rule pursuant to
7:14A-7.5, shall include an approved
Ground Water Protection Program to ensure that the discharge does not contravene the
ground water quality standards at N.J.A.C. 7:9C and meets the monitoring
requirements of this section and
7:14A-7.7.
(b) Unless an alternate program is approved in
advance as indicated in (f) below, each Ground Water Protection Program shall
include the following components:
1. A monitoring
well system, consisting of monitoring wells located in each aquifer that may be
impacted by the discharge. Unless the permittee demonstrates otherwise to the
satisfaction of the Department, the monitoring well system shall consist of a
minimum of one hydraulically upgradient well, and at least three hydraulically
downgradient wells. The permittee shall demonstrate the adequacy of the monitoring
well system by:
i. Submission of results of a
physical or mathematical ground water flow and/or contaminant transport model
demonstrating that the monitoring well system is capable of intercepting contaminant
plumes emanating from each pollutant source;
ii. Submission of results of geophysical methods
of analysis such as resistivity/conductivity methods that confirm wells are placed
such that they are capable of intercepting contaminant plumes emanating from each
pollution source; or
iii. Submission of
results of an alternative method of adequacy testing, approved by the Department in
writing;
2. Effluent quality
monitoring;
3. A schedule of mechanical
and structural testing to determine that the berms, dikes, liners, and wells, and
any other engineered devices used as part of a treatment works will function as
designed;
4. A list of ground water
contaminants for which to monitor, analyze, and report, including the contaminants
identified during the pollutant characterization performed in accordance with
7:14A-7.9(d)2;
and
5. A schedule, including procedures
and techniques for:
i. Sample
collection;
ii. Sample preservation and
shipment;
iii. Analytical procedures;
and
iv. Chain of custody
control.
(c) In
addition to the requirements of (b) above, a Ground Water Protection Program shall
contain additional treatment works, materials management, best management plans,
discharge sampling, flow limitations, effluent limitations, monitoring wells,
lysimeters, piezometers, alarms, hydraulic control devices and inspections as
required to prevent contravention of the ground water quality standards in N.J.A.C.
7:9C.
(d) In each Ground Water
Protection Program, the Department shall require one or more of the following
monitoring programs:
1. A leak detection
monitoring program, capable of detecting all discharges from any pollution source
not designed to discharge pollutants but from which a discharge could occur as a
result of a leak or other structural failure. The leak detection monitoring program
shall include:
i. A monitoring well system that
includes the components described at (b)1 above or leak detection devices such as
piezometers, alarms, electrical leak detection or leak location systems, or leachate
collection systems; and
ii. A
statistical analysis of the monitoring well data collected in accordance with
7:14A-7.7, in order to determine whether
or not there is statistically significant evidence of a leak from the pollutant
source when monitoring is conducted pursuant to (b)1 above.
2. An attenuation monitoring program if any
pollution source is known or expected to discharge pollutants. The attenuation
monitoring program shall include:
i. The
components described at (b) above; and
ii. A statistical analysis of the monitoring well
data collected in accordance with
7:14A-7.7, in order to determine whether
or not there is statistically significant evidence of a contravention of the ground
water quality standards in N.J.A.C. 7:9C.
3. A non-point source monitoring program if there
are an indeterminate number of pollution sources, or more than one discharge source.
The non-point source monitoring program shall consist of:
i. The components described at (b) above;
and
ii. A monitoring approach capable of
evaluating whether ground water quality standards are contravened at the property
boundary, or at another point of compliance as identified in the permit.
(e) When comparing data from
monitoring wells, the data collected shall be subjected to the appropriate
statistical analyses as described in
7:14A-7.7.
(f) If approved by the Department in writing, a
permittee may implement an alternate Ground Water Protection Program that ensures
compliance with the ground water quality standards of N.J.A.C. 7:9C and that meets
the monitoring requirements of this section and
7:14A-7.7.
