New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM
Subchapter 13 - EFFLUENT LIMITATIONS FOR DSW PERMITS
Section 7:14A-13.14 - Expression of effluent limitations
Universal Citation: NJ Admin Code 7:14A-13.14
Current through Register Vol. 56, No. 24, December 18, 2024
(a) Effluent limitations shall be expressed as described below:
1. Water quality based effluent limitations
shall be expressed as both concentration and mass loading, except as listed in
(a)1i through iv below:
i. For parameters
such as pH, temperature, radiation, or other pollutants, which cannot be
appropriately expressed in terms of concentration and mass, the effluent
limitations shall be expressed in units appropriate to the parameter;
ii. Water quality based limitations for whole
effluent toxicity shall be expressed as the LC[50] or No Observed Adverse
Effect Concentration, as appropriate, and equivalent acute toxic units for
acute whole effluent toxicity limitations and as the IC[25] and equivalent
chronic toxic units for chronic whole effluent toxicity limitations;
iii. If the ratio of the receiving stream
flow within the mixing zone to the total effluent flow is greater than 100:1,
the effluent limitations shall be expressed only as mass loading without an
effluent limitation for concentration, provided that no specific regulatory
requirement is applicable which would require limitations on effluent
concentration;
iv. Water quality
based limitations determined from a TMDL/WLA may be expressed as either
concentration or mass loading if:
(1) The
TMDL has been adopted in accordance with N.J.A.C. 7:15-7; and
(2) The TMDL specifically states that the
associated water quality based effluent limitations shall be expressed only as
either concentration or mass loading.
2. Limitations which are based on
N.J.A.C.
7:14A-13.2(a)1 or (a)5 shall
be expressed as concentration and mass loading for DTWs and as mass loading for
all other dischargers, except as provided below:
i. For parameters such as pH, temperature,
radiation, or other pollutants, which cannot be appropriately expressed in
terms of concentration and mass, in which case the effluent limitations shall
be expressed in units appropriate to the parameter;
ii. When applicable standards and limitations
are expressed in terms of other units of measurement. For example, limitations
for whole effluent toxicity shall be expressed as the LC[50] or No Observed
Adverse Effect Concentration, as appropriate, and equivalent acute toxic units
for acute whole effluent toxicity limitations and as the IC[25] and equivalent
chronic toxic units for chronic whole effluent toxicity limitations;
iii. When limitations are developed on a
case-by-case basis and expression of the limitation as mass is infeasible
because the mass of the pollutant discharged cannot be related to a measure of
operation;
3.
(Reserved)
4. Limitations based on the effluent
standards for site remediation projects at N.J.A.C. 7:14A-12 Appendix B shall
be expressed as concentration;
5.
Limitations based on the effluent standards for new source and expanded
discharges at N.J.A.C. 7:14A-12 Appendix C shall be expressed as mass and
concentration, unless the discharge meets the qualifications at (a)1iii above;
and
6. Limitations may be expressed
as concentration or mass, or as concentration and mass, when such expression is
required by authority or rules adopted by another regulatory agency. Other
regulatory agencies include the Pinelands Commission, the Delaware River Basin
Commission, or the Interstate Environmental Commission.
(b) All permit effluent limitations, effluent standards, or prohibitions for a metal shall be expressed in terms of total recoverable metal unless:
1. An applicable
effluent standard or limitation has been promulgated under the Federal Act and
specifies the limitation for the metal in the dissolved, valent or total
form;
2. In establishing permit
limitations on a case-by-case basis under
N.J.A.C.
7:14A-13.4, it is necessary to express the
limitation on the metal in the dissolved, valent, or total form to carry out
the provisions of the Federal Act; or
3. Approved analytical methods for the metal
inherently measure only its dissolved form (for example, hexavalent
chromium).
Disclaimer: These regulations may not be the most recent version. New Jersey may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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