4. If, for any of the reasons set forth in subsection c. of section 57 of P.L.1975, c.291 (C. 40:55D-70), a variance is required under that subsection c. for the siting of a structure or equipment to be used in a groundwater remedial action subject to section 3 of P.L.1993, c.351 (C. 40:55D-66.8), a variance for the remedial action shall be deemed necessary to avoid exceptional and undue hardship on an owner, lessee or developer of a property for which a variance application is made; however, a zoning ordinance may authorize the zoning board of adjustment or planning board, as appropriate, to establish reasonable terms and conditions for issuance of a subsection c. variance. The zoning board of adjustment or planning board, as appropriate, shall review and take final action on an application for a subsection c. variance for a groundwater corrective action at the next meeting of the zoning board of adjustment or planning board, as appropriate, occurring not less than 20 days following the filing of an application therefor, unless the zoning board of adjustment or planning board, as appropriate, determines that the application lacks information indicated on a checklist adopted by ordinance and made available to the applicant, and the applicant has been notified, in writing, of the specific deficiencies prior to expiration of the 20-day period.

L.1993,c.351,s.4.