Effluent data submitted to the control authority under this chapter shall be a public record within the meaning of s. 19.21, Stats. All other information submitted to the control authority under this chapter shall be a public record unless the information is entitled to confidential treatment under s. 283.55(2), Stats., and s. NR 2.19 asatradesecret. POTWs operating a pretreatment program must enact ordinances or rules giving them the authority to treat as confidential information which is a trade secret.
Wis. Admin. Code Department of Natural Resources NR 211.26