The deadline for compliance with national categorical pretreatment standards is the compliance date contained in the applicable regulation listed in part 7049.0310, but not later than three years after the effective date of the applicable regulation. A new source shall install, have in operating condition, and start up all pollution control equipment required to meet applicable categorical pretreatment standards before beginning to discharge. Within the shortest feasible time, not to exceed 90 days, a new source must meet all applicable categorical pretreatment standards. Existing sources that become industrial users subsequent to adoption of an applicable categorical pretreatment standard shall be considered existing industrial users, except when the sources meet the definition of a new source.
Except when expressly authorized to do so by an applicable pretreatment standard or requirement, an industrial user shall not increase the use of process water or in any way attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with a pretreatment standard or requirement. The control authority may impose mass limitations on industrial users that have used or are using dilution to meet applicable pretreatment standards or in other cases where the imposition of mass limitations is appropriate.
Minn. R. Part 7049.0300
Statutory Authority: MS s 115.03