A person discharging industrial wastes into public sewers prior to the effective date of this subchapter may continue without penalty so long as he or she:
(A) Does not increase the quantity or quality of discharge, without permission of the approving authority;
(B) Has discharged the industrial waste at least 12 months prior to the effective date of this subchapter; and
(C) Applies for and is granted a permit no later than 150 days after the effective date of this subchapter.
(1985 Code, § 11-818)