Current through September 21, 2024
(a) The monitoring
program shall be adequate to ensure knowledge of migration and behavior of the
discharge in the receiver.
(i) Monitoring may
be required for any circumstance where groundwaters of the state could be
affected by a Class V facility.
(ii) The extent and design of a monitoring
system shall be sufficient to deal with the pollution potential of the proposed
discharge.
(iii) Before
construction or installation of a Class V facility, a monitoring program, when
required, shall be adequate to establish baseline conditions of the
receiver.
(b) The
monitoring program shall consist of any or all of the following:
(i) Pre-discharge or pre-operational
monitoring;
(ii) Operational
monitoring;
(iii) Post-discharge or
post-operational monitoring;
(iv)
Record keeping and reporting;
(v)
Such additional requirements established by the administrator to meet the
purposes of the Environmental Quality Act and these regulations.
(c) Each monitoring program shall
include maps and cross-sections, where appropriate, showing the location,
lithology, and screening interval of each monitoring site.
(d) The operator is responsible for properly
installing, operating, maintaining and removing all necessary monitoring
equipment.
(e) The operator shall
develop and follow a written waste analysis plan that describes the procedures
to be carried out to obtain detailed chemical and physical analyses of a
representative samples of the waste, including quality assurance procedures to
be used. Once approved by the department, the operator shall not deviate from
the plan without filing an amended plan and obtaining department approval for
that amended plan. At a minimum, any plan shall include:
(i) The parameters for which the waste will
be analyzed, the rationale for the selection of these parameters, and the test
methods to be used to test for these parameters; and
(ii) The sampling method that will be used to
obtain a representative sample of the waste.
(iii) The operator shall repeat the analysis
of the injected wastes in the manner and on the schedule described in the waste
analysis plan or when operating changes occur that may significantly alter the
characteristics of the waste stream.
(f) All Class V permits shall contain a point
of compliance. The point of compliance shall be the point of injection or
specific monitor wells located down gradient of the injection facilities.
(i) For facilities where the point of
compliance is the point of injection, the fluid to be injected shall be limited
to the class of use standards for the receiver as found in Chapter 8 of these
regulations or any primary drinking water standard found in 40 CFR 141, (as of
June 6, 2001) whichever is more stringent. The permittee may be required to
maintain monitor wells in the vicinity of the discharge for the purpose of
monitoring flow direction and monitoring groundwater quality in the event of
non-compliance with the permit.
(ii) For facilities where the point of
compliance is at one or more down gradient monitor wells, the department shall
establish permit limitations at the monitor well(s) consistent with the class
of use of the receiver or any secondarily affected aquifer or surface water.
Where necessary to protect existing or future uses, permit limitations may be
established at the point of compliance which are more stringent than the class
of use standard.
(iii) Facilities
where subsurface treatment is anticipated may be required to monitor the
injected fluid at the point of injection. Permit limits may be established at
the point of injection which exceed the class of use standard for the affected
aquifer, provided that a demonstration is made showing that a class of use
standards violation will not occur at a point of compliance downgradient from
the point of injection. Permit limits of this nature are intended to provide
early warning of possible non-compliance at the point of compliance.
(g) Procedures and methods for
sample collection and analyses shall be implemented by the permittee to ensure
that the samples are representative of the groundwater, water, or wastes being
sampled.
(h) Sample collection of
groundwater shall be of such frequency and of such variety (season, time,
location, depth, etc.) to properly describe the groundwater, and shall be
accomplished by the methods and procedures described in the U.S. Environmental
Protection Agency manual RCRA Groundwater Monitoring Technical
Enforcement Guidance Document, September, 1986, unless alternate
methods and procedures are approved by the administrator.
(i) Analysis of all samples shall be
accomplished pursuant to Chapter 8, Water Quality Rules and Regulations,
Sections 7 and 8.
