(A) Where a treated regulated process wastestream is combined prior to treatment with wastewaters other than generated by the regulated process, the industrial user may monitor either the segregated process wastestream or the combined wastestream for the purpose of determining compliance with applicable standards. If the industrial user chooses to monitor the segregated process wastestream, it shall apply the applicable categorical pretreatment standard. If the user chooses to monitor the combined wastestream, it shall apply an alternative discharge limit calculated using the combined wastestream formula as provided in 40 CFR § 403.7.
(B) The industrial user may change monitoring points only after receiving approval from the Control Authority. Any change in an industrial user’s monitoring points shall not allow user to substitute dilution for adequate treatment to achieve compliance with applicable standards.
(Ord. 95-08, passed 3-7-95; Am. Ord. 11-30, passed 12-13-11; Am. Ord. 13-25, passed 11-12-13)