Every wastewater discharge permit which does not currently specify effluent limitations for any of the hazardous metals covered by this subchapter is hereby amended to incorporate the terms of this subchapter. In all wastewater discharge permits which the commission may issue, renew, or amend, the quality levels specified in this subchapter shall apply where the commission does not establish specific effluent limitations regarding a particular hazardous metal.
30 Tex. Admin. Code § 319.28