[Ord. No. 2020-498, 9/24/2020]
1.
General Prohibitions. No user shall introduce or cause to be introduced
any pollutant or wastewater which causes pass-through or interference
of the POTW.
2.
Specific Prohibitions. The following pollutants, substances, or wastewaters
are prohibited from entering the POTW:
A.
Pollutants that create a fire or explosive hazard in the POTW, including,
waste streams with a closed-cup flashpoint of less than 140° F.
(60° C.) using the test methods specified in 40 CFR 261.21;
B.
Wastewater having a pH less than 5.0 or more than 9.0, or otherwise
creating a significant risk of causing corrosive structural damage
to the POTW or equipment;
C.
Solid or viscous substances causing obstruction of flow in the POTW
resulting in interference;
D.
Solid or viscous substances greater than 1/2 inch in any dimension;
E.
BOD in concentrations > 300 mg/L. Pollutants,
including oxygen demanding pollutants including BOD or COD, released
in a discharge at a flow rate and/or pollution concentration which,
either singly or by interaction with other pollutants, cause interference;
F.
TSS in concentrations > 350 mg/L;
G.
Wastewater having a temperature greater than 120° F. at the point
of source discharge, or which will inhibit biological activity in
the treatment plant resulting in interference;
H.
Wastewater causing the temperature to exceed 104° F. measured
at the headworks of the treatment plant;
I.
Pollutants including petroleum oil, nonbiodegradable cutting oil,
ashes, cinders, sand, mud, metal, glass, rags, tar, plastics, wood,
or products of mineral oil origin, in amounts causing interference
or pass-through;
J.
Volatile pollutants including gasoline, benzene, naphtha, or fuel
that results in the presence of toxic gases, vapors, or fumes within
the POTW;
L.
Noxious or malodorous liquids, gases, solids, or other wastewater
which, either singly or by interaction with other wastes, are sufficient
to create a public nuisance, a hazard to life, or to prevent entry
into the sewers for maintenance or repair;
M.
Wastewater which imparts color that cannot be removed by the treatment
process, including, dye wastes and vegetable tanning solutions;
N.
Radioactive wastes or isotopes or wastewater containing radioactive
wastes or isotopes, except in compliance with commonwealth or federal
regulations;
O.
Stormwater, including surface water, roof runoff, and area drains;
P.
Groundwater, including artesian well water, and subsurface drainage;
Q.
Sludge, screenings, or other residues from the pretreatment of industrial
wastes;
R.
Medical wastes, except as specifically authorized by the Township;
S.
Wastewater causing, alone or in conjunction with other sources, the
treatment plant's effluent to fail a toxicity test;
T.
Detergents, surface active agents, or other substances which may
cause excessive foaming in the POTW;
U.
Fats, oils or greases of animal, vegetable or petroleum origin in
concentrations > 100 mg/L as defined by EPA
Test Method 1664A or amounts which will cause obstruction interference
in the POTW;
V.
Wastewater causing two successive readings on an explosion hazard
meter at the point of discharge into the POTW, or at any point in
the POTW, of more than 5% for any single reading over 10% of the lower
explosive limit of the meter;
W.
Yard waste to include grass clippings, leaves, mulch, dirt, gravel
and tree trimmings;
X.
Chemicals, enzymes, or biological additives for the purpose of fats,
oils, and grease metabolism or alteration that are introduced to pretreatment
devices and the sewer collection system are prohibited unless approved
by the Township;
Y.
Animal waste of any type or concentration unless approved by the
Township.
3.
Food grinders are prohibited at new or remodeled food service facilities
after the adoption date of this chapter. When notified by the Township,
existing food service establishments shall remove food grinders within
180 days of the Township notification.
4.
Discharge of waste or wastewater directly into a manhole or other
non-permitted user connection to the POTW is prohibited unless approved
by the Township.
[Ord. No. 2020-498, 9/24/2020]
1.
User(s), determined by the Township, must comply with the categorical pretreatment standards found at 40 CFR Chapter 1, Subchapter N, Parts 405 through 471. The Township, at its discretion, may:
A.
Impose equivalent concentration or mass limits in accordance with
Parts 4 and 5 of this chapter, where a categorical pretreatment standard
is expressed only in terms of either the mass or the concentration
of a pollutant in wastewater.
B.
Convert the limits to equivalent limitations expressed either as
mass of pollutant discharged per day or effluent concentration for
purposes of calculating effluent limitations applicable to individual
industrial user(s), when the limits in a categorical pretreatment
standard are expressed only in terms of mass of pollutant per unit
of production.
C.
Impose an alternate limit in accordance with 40 CFR 403.6(e), when
wastewater subject to a categorical pretreatment standard is mixed
with wastewater not regulated by the same standard.
D.
Convert the mass limits of the categorical pretreatment standards
of 40 CFR Parts 414, 419, and 455 to concentration limits for purposes
of calculating limitations applicable to individual industrial user(s).
2.
Industrial user(s) may request that the Township convert the categorical
pretreatment standard limits from a concentration to equivalent mass
limits when an industrial user meets each of the following conditions:
A.
Demonstrates that it employs water conservation methods and technologies
that substantially reduce water use during the term of its individual
wastewater discharge permit;
B.
Uses control and treatment technologies adequate to achieve compliance
with the applicable categorical pretreatment standard;
C.
Provides evidence that dilution is not utilized as a substitute for
treatment;
D.
Provide sufficient information to establish the facility's actual
average daily flow rate for all waste streams, based on data from
a continuous effluent flow monitoring device, as well as the facility's
long-term average production rate. Both the actual average daily flow
rate and the long-term average production rate must be representative
of current operating conditions;
E.
Provides evidence of minor variance of daily flow rates, production
levels, or pollutant levels so that equivalent mass limits are appropriate
to control the discharge;
F.
Consistently complied with applicable categorical pretreatment standards
during the period prior to the industrial user's request for
equivalent mass limits.
3.
An industrial user subject to equivalent mass limits must comply
with the following requirements:
A.
Maintain and effectively operate control and treatment technologies
adequate to achieve compliance with the equivalent mass limits;
B.
Record the facility's flow rates using a continuous effluent
flow-monitoring device;
C.
Record the facility's production rates and notify the Township
whenever production rates are expected to vary by more than 20% from
its baseline production rates. Upon notification of a revised production
rate, the Township will reassess the equivalent mass limit and revise
the limit as necessary to reflect changed conditions at the facility;
4.
When developing equivalent mass limits, the Township:
A.
Calculates the equivalent mass limit by multiplying the actual average
daily flow rate of the regulated process(es) of the Industrial User
by the concentration-based daily maximum and monthly average standard
for the applicable categorical pretreatment standard and the appropriate
unit conversion factor.
B.
May retain the same equivalent mass limit in subsequent individual wastewater discharge permit terms based on if the industrial user's actual average daily flow rate was reduced solely as a result of the implementation of water conservation methods and technologies, and the actual average daily flow rates used in the original calculation of the equivalent mass limit were not based on the use of dilution as a substitute for treatment pursuant to § 19-204.
5.
Cranberry Township may convert the mass limits of the categorical
pretreatment standards of 40 CFR Parts 414, 419, and 455 to concentration
limits for purposes of calculating limitations applicable to individual
industrial user(s). The conversion is at the discretion of the Township.
6.
The industrial user must comply with revised permitted equivalent limitations developed in § 19-202 in lieu of the promulgated categorical standards from which the equivalent limitations were derived.
7.
Pretreatment standards specifying one limit for calculating maximum
daily discharge limitations and a second limit for calculating maximum
monthly average, or four-day average, limitations, the same production
or flow figure shall be used in calculating both the average and the
maximum equivalent limitation.
8.
An industrial user operating under a permit incorporating equivalent
mass or concentration limits calculated from a production-based standard
shall notify the Township within two business days after the user
has knowledge that the production level will significantly change
within the next calendar month. Current permitted limits remain in
effect regardless of changes made to the production level until the
user receives from the Township approved revised permitted limits.
9.
If a CIU applied for and was granted a fundamentally different factors
variance (FDF) from the EPA based on 40 CFR 403.13, the Township reserves
the right to determine replacement of the current CIU's standards
with the revised FDF variance standard.
[Ord. No. 2020-498, 9/24/2020]
1.
The Township is authorized to establish local limits pursuant to
40 CFR 403.5(c).
2.
For pollutants of concern, the Township sets maximum allowable headworks
loadings (MAHLs) to protect against pass-through and interference.
MAHLs are set by using both data acquired through a headworks analysis
of the POTW and EPA software. The MAHLs are established by Township
resolution and modified as deemed necessary.
3.
To ensure that aggregate amounts of pollutants discharged into the
system do not exceed the MAHLs or local limits, the Township may issue
a discharge permit to user(s) stating the mass and/or concentration
limits for pollutants of concern.
4.
No user shall discharge any one of the MAHL pollutants listed in
the Township resolution at or above the concentration based or mass-based
values at any time.
5.
Local limits apply at the point where the wastewater is discharged
to the POTW.
6.
The Township, at its discretion, has the right to modify permitted
mass or concentration limits.
[Ord. No. 2020-498, 9/24/2020]
The increase use of process water, or the dilution of a discharge,
is not permitted 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 Township reserves the right to impose mass limitations on user(s)
who are using dilution to meet applicable pretreatment standards or
requirements, or in other cases when the imposition of mass limitations
is appropriate.
[Ord. No. 2020-498, 9/24/2020]
The Township reserves the right to establish, by ordinance or
in individual wastewater discharge permits, more stringent standards
or requirements on discharges to the POTW consistent with the purpose
of this chapter.
