Implementation of criteria to protect the Aesthetics beneficial use

(a) Limitations and monitoring requirements for pollutants from previous permits are retained. (b) Limitations and monitoring requirements may be established on a case-by-case basis to protect the aesthetics beneficial use of the receiving water established in OAC 252:730. (c) For effluents containing lignins, tannins, dyes, and other organic or inorganic chemicals that cause true color, the narrative water quality criterion for color shall be implemented by limiting the instream concentration after mixing to 70 Platinum-cobalt true color units based on a simple mass balance calculation. The following regulatory effluent flows apply for the implementation of the color criterion to protect the Aesthetics beneficial use: (1) for industrial facilities, Qe(30); and (2) for municipal facilities, Qe(D).