(a) Domestic wastewater. The permittee shall comply with the effluent limitations in §309.3 and §309.4 of this title (relating to Application of Effluent Sets and Table 1, Effluent Limitations for Domestic Wastewater Treatment Plants) and any specific effluent limitations placed in the permit by the executive director.(b) Industrial wastewater.(1) The permittee is prohibited from introducing the following wastes into a subsurface area drip dispersal system:(A) characteristically hazardous wastes as determined in 40 Code of Federal Regulations (CFR) Part 261, Subpart C;(B) listed hazardous wastes as defined in 40 CFR Part 261, Subpart D;(C) wastes specifically prohibited for land disposal in 40 CFR Part 268, Subpart C; and(D) wastes containing radioactive materials unless the permittee is authorized to store, process, and dispose of these wastes in compliance with the Atomic Energy Act of 1954 (as amended) or in compliance with the Texas Radiation Control Act.(2) Effluent limitations.(A) The permittee shall comply with the effluent limitations established by the executive director in an individual permit.(B) The permittee shall demonstrate compliance with technology-based effluent limitations by monitoring the effluent prior to introduction into the subsurface area drip dispersal system.(C) If the soil pH is less than 6.5 standard units at a subsurface area drip dispersal system site, the permittee shall monitor certain trace elements, including phosphorus, fluoride, and heavy metals as specified by the executive director in the individual permit.(D) Prior to disposal, the permittee shall ensure that the effluent from a treatment system meets Effluent Set 5, established in §309.4 of this title.