The categorical pretreatment standards found
at 40 CFR Chapter I, Subchapter N, Parts 405-471 are hereby incorporated.
A. Where a categorical pretreatment standard is expressed
in terms of either the mass or the concentration of a pollutant in
wastewater, the Manager may impose equivalent concentration or mass
limits in accordance with 40 CFR 403.6(c).
B. When wastewater subject to a categorical pretreatment
standard is mixed with wastewater not regulated by the same standard,
the Manager shall impose an alternate limit using the combined wastestream
formula in 40 CFR 403.6(e).
C. A user may obtain a variance from a categorical pretreatment
standard if the user can prove, pursuant to the procedural and substantive
provisions in 40 CFR 403.13, that factors relating to its discharge
are fundamentally different from the factors considered by the EPA
when developing the categorical pretreatment standard.
D. A user may obtain a net gross adjustment to a categorical
standard in accordance with 40 CFR 403.15.
The Township reserves the right to establish
by ordinance, and Greater Greensburg Sewage Authority reserves the
right to establish by wastewater discharge permits, more stringent
standards or requirements on discharges to the POTW.
No user shall ever 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 discharge limitation unless expressly authorized by an applicable
pretreatment standard or requirement. The Manager may impose mass
limitations on users who are using dilution to meet applicable pretreatment
standards or requirements or in other cases when the imposition of
mass limitations is appropriate.