a. A person may be entitled to an affirmative defense to liability for a mandatory assessment of a civil administrative penalty pursuant to section 6 of P.L.1990, c.28 (C. 58:10A-10.1) for a violation of an effluent limitation occurring as a result of an upset, an anticipated or unanticipated bypass, or a testing or laboratory error. A person shall be entitled to an affirmative defense only if, in the determination of the department or delegated local agency, the person satisfies the provisions of subsection b., c., e. or f., as applicable, of this section.

b. A person asserting an upset as an affirmative defense pursuant to this section, except in the case of an approved maintenance operation, shall notify the department or the local agency of an upset within 24 hours of the occurrence, or of becoming aware of the occurrence, and, within five days thereof, shall submit written documentation, including properly signed, contemporaneous operating logs, or other relevant evidence, on the circumstances of the violation, and demonstrating, as applicable, that:

(1) the upset occurred, including the cause of the upset and, as necessary, the identity of the person causing the upset, except that, in the case of a treatment works, the local agency may certify that despite a good faith effort it is unable to identify the cause of the upset, or the person causing the upset;

(2) the permitted facility was at the time being properly operated;

(3) the person submitted notice of the upset as required pursuant to this section, or, in the case of an upset resulting from the performance by the permittee of maintenance operations, the permittee provided prior notice and received an approval therefor from the department or the delegated local agency; and

(4) the person complied with any remedial measures required by the department or delegated local agency.

c. A person asserting an unanticipated bypass as an affirmative defense pursuant to this section shall notify the department or the local agency of the unanticipated bypass within 24 hours of its occurrence, and, within five days thereof, shall submit written documentation, including properly signed, contemporaneous operating logs, or other relevant evidence, on the circumstances of the violation, and demonstrating that:

(1) the unanticipated bypass occurred, including the circumstances leading to the bypass;

(2) the permitted facility was at the time being properly operated;

(3) the person submitted notice of the upset as required pursuant to this section; and

(4) the person complied with any remedial measures required by the department or delegated local agency;

(5) the bypass was unavoidable to prevent loss of life, personal injury, or severe property damage; and

(6) there was no feasible alternative to the bypass such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of downtime, except that the provisions of this paragraph shall not apply to a bypass occurring during normal periods of equipment downtime or preventive maintenance if, on the basis of the reasonable engineering judgment of the department or delegated local agency, back-up equipment should have been installed to avoid the need for a bypass.

d. Nothing contained in subsection b. or c. of this section shall be construed to limit the requirement to comply with the provisions of paragraph (8) of subsection f. of section 6 of P.L.1977, c.74 (C. 58:10A-6).

e. A person may assert an anticipated bypass as an affirmative defense pursuant to this section only if the person provided prior notice to the department or delegated local agency, if possible, at least 10 days prior to the date of the bypass, and the department or delegated local agency approved the bypass, and if the person is able to demonstrate that:

(1) the bypass was unavoidable to prevent loss of life, personal injury, or severe property damage; and

(2) there was no feasible alternative to the bypass such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of downtime, except that the provisions of this paragraph shall not apply to a bypass occurring during normal periods of equipment downtime or preventive maintenance if, on the basis of the reasonable engineering judgment of the department or delegated local agency, back-up equipment should have been installed to avoid the need for a bypass.

f. A person asserting a testing or laboratory error as an affirmative defense pursuant to this section shall have the burden to demonstrate, to the satisfaction of the department, that a serious violation involving the exceedance of an effluent limitation was the result of unanticipated test interferences, sample contamination, analytical defects, or procedural deficiencies in sampling or other similar circumstances beyond the control of the permittee.

g. A determination by the department on a claim that a violation of an effluent limitation was caused by an upset, a bypass or a testing or laboratory error shall be considered final agency action on the matter for the purposes of the “Administrative Procedure Act,” P.L.1968, c.410 (C. 52:14B-1 et seq.), and shall be subject only to review by a court of competent jurisdiction.

h. An assertion of an upset, a bypass or a testing or laboratory error as an affirmative defense pursuant to this section may not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.

i. If the department determines, pursuant to the provisions of this section, that a violation of an effluent limitation was caused by an upset, a bypass or a testing or laboratory error, the commissioner shall waive any mandatory civil administrative penalty required to be assessed pursuant to section 6 of P.L.1990, c.28 (C. 58:10A-10.1), and the violation shall not be considered a serious violation or violation causing a person to be designated a significant noncomplier.

j. The affirmative defense for an upset, a bypass or a testing or laboratory error provided in this section shall only apply to the imposition of mandatory penalties pursuant to section 6 of P.L.1990, c.28 (C. 58:10A-10.1) for serious violations and for determining a significant noncomplier. Nothing in this act shall be construed to limit the authority of the department, or a delegated local agency, to adopt regulations or permit conditions that include or do not include an upset, a bypass or a testing or laboratory error, using different standards, as a defense for any other exceedance of an effluent limitation.

L.1990,c.28,s.7.