§ 12-09 Perc-Contaminated Wastewater Management.
RCNY § 12-09
Perc-contaminated wastewater generated by all new and existing facilities subject to this Rule must be managed as follows: (a) Perc-contaminated wastewater discharges.
(1)Perc-contaminated wastewater that is discharged to the public sewer system must be treated by physical separation (water separator) and double carbon filtration, or an equivalent control which has been approved by the Department, which has been properly designed to assure an effluent quality that: (i) is less than or equal to 20 ppb perc without perc evaporation; and (ii) complies in all other respects to the requirements of 15 RCNY Chapter 19 regulating the use of the public sewer system.
(2)Except as provided for by subparagraph (a)(1)(i) of this section, no person may discharge into the public sewer system any perc-contaminated wastewater or wastes resulting from dry cleaning processes including, but not limited to, still bottom or sludge residues, dirt, lint, soils, or any other deposits or residues extracted as a result of dry cleaning processes. The discharge into the public sewer system of filters or other filter media used in dry cleaning processes is prohibited.
(3)No person may discharge perc-contaminated wastewater to the surface or groundwaters within New York City except in compliance with the terms and conditions of a valid State Pollution Discharge Elimination Permit.
(b)Evaporation of perc-contaminated wastewater. Perc-contaminated wastewater that is evaporated must be treated by physical separation (water separator) and double carbon filtration prior to evaporation.
