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PA~T I Page 5 of 18 Permit No: MN 0060259 C. SPECIAL REOUIREMER~S Pretreatment Requirements No pollutant shall be discharged from this facility to a publicly owned treatment works except in accordance with pretreatment standards established in accordance with the Act or Minnesota Statutes or any such local standards or requirements. No pollutant shall be discharged into any publicly owned disposal system which interferes with, passes through inadequately treated or otherwise is incompatible with such disposal system. The Permittee shall not make modifications to divert any discharge of pollutants authorized by this permit to a publicly owned treatment works without having first notified and received the approval of the Commissioner. Water Treatment and Chemical Additives The Permittee shall not use nor increase the use of water treatment or chemical additives at this facility other than those additives and in the amounts reported prior to issuance Of this permit and approved by the Commissioner, without the prior approval of the Commissioner. The Permittee shall request approval from the Commissioner in writing at least 30 days in advance of the proposed new use or increase in use of a water treatment or chemical additive at this facility. This written request shall include at least the following information for the proposed additive: .._ a. The commercial and chemical names; b. Aquatic toxicity and human health or mammalian toxicity data; c. Environmental fate information (including, but not limited to, persistence, half-life and bioaccumulation data); d. Whether the chemical is a suspected carcindgen, mutagen or teratogen; and e. The proposed methods, and average and maximum rates and frequencies of chemical addition. This permit may be modified to water treatment or chemical monitoring. restrict the use or discharge of a additive, or to require additional Reopenin~ Clause This permit shall be modified, or, alternatively, revoked and reissued, to comply with any applicable effluent standard or limitation issued or approved under sections 301 (b)(2)(C), and (D), 304 (b)(2), and 307 (a)(2) of the Act, if the effluent standard or limitation so issued or approved: (!) Contains different conditions or is otherwise more than an>' effluent limitation in the permit; or (2) Controls any pollutant not limited in the permit. stringent The permit as modified or reissued under this paragraph shall also contain any other requirements of the Act then applicable.