[Adopted 10-12-2010 by Ord. No. 2010-15, approved 10-12-2010]
[1]
Editor's Note: Former Art. VIII, User Charges and Connection
Fees, adopted 8-8-1989 by Ord. No. 399, approved 8-8-1989, as amended,
which immediately followed this section, was repealed 6-14-2005 by
Ord. No. 05-04, approved 6-14-2005.
This article sets forth uniform requirements for users of the
publicly owned treatment works to capture and dispose of fats, oils
and greases ("FOG") and enables the Borough or its designee to comply
with all applicable state and federal laws, including the Clean Water
Act, 33 U.S.C., § 1251 et seq., and the General Pretreatment
Regulations, Title 40 CFR Part 403. The objectives of this article
are:
A.
To prevent the introduction of FOG into the publicly owned treatment
works that will interfere with its operation;
B.
To prevent the introduction of FOG into the publicly owned treatment
works that could pass through the publicly owned treatment works,
inadequately treated, into receiving waters, or otherwise be incompatible
with the publicly owned treatment works;
C.
To prevent sanitary sewer overflow (SSO) where sewer water flows
out of a manhole cover and along the ground. These overflows can then
contaminate the ground, local water bodies and any property that the
sewerage comes into contact with.
D.
To promote reuse and recycling of waste grease (FOG) from the publicly
owned treatment works.
A.
This article shall apply to all nondomestic users of the publicly owned treatment works (POTW), as defined in § 93-56 of this article.
B.
Grease interceptors shall not be required for residential users.
C.
This article shall apply to both new and existing facilities generating fats, oils, or greases as a result of food manufacturing, processing, preparation, or food service shall install, use, and maintain appropriate grease interceptors as required in § 93-57 of this article. These facilities include but are not limited to restaurants, food manufacturers, food processors, hospitals, hotels and motels, prisons, nursing homes, and any other facility preparing, serving, or otherwise making any foodstuff available for consumption.
D.
No user may intentionally or unintentionally allow the direct or
indirect discharge of any fats, oils, or greases of animal or vegetable
origin into the POTW system in such amounts as to cause interference
with the collection and treatment system, or as to cause pollutants
to pass through the treatment works into the environment.
As used in this article, the following terms shall have the
meanings indicated:
Federal Water Pollution Control Act, also known as the "Clean
Water Act," as amended, 33 U.S.C. § 1251 et seq.
The West Conshohocken Municipal Authority.
The value of the five-day test for biochemical oxygen demand,
as described in the latest edition of "Standard Methods for the Examination
of Water & Wastewater."
The Borough of West Conshohocken.
The value of the test for chemical oxygen demand, as described
in the latest edition of "Standard Methods for the Examination of
Water & Wastewater."
The United States Environmental Protection Agency.
Organic polar compounds derived from animal and/or plant
sources that contain multiple carbon chain triglyceride molecules.
These substances are detectable and measurable using analytical test
procedures established in 40 CFR 136, as may be amended from time
to time. All are sometimes referred to herein as "grease" or "greases."
Any person who owns or operates a grease trap/grease interceptor,
or whose act or process produces a grease trap waste.
An appurtenance or appliance that is installed in a sanitary
drainage system to intercept nonpetroleum fats, oils and grease (FOG)
from a wastewater.
Any hydromechanical grease interceptor that automatically,
mechanically removes nonpetroleum fats, oils and grease (FOG) from
the interceptor, the control of which are either automatic or manually
initiated.
Material collected in and from a grease interceptor in the
sanitary sewer service line of a commercial, institutional, or industrial
food service or processing establishment, including the solids resulting
from dewatering processes.
A grease interceptor that reduces nonpetroleum fats, oils,
and grease (FOG) in effluent by separation, and mass and volume reduction.
The introduction of pollutants into a POTW from any nondomestic
source.
A discharge which alone or in conjunction with a discharge
or discharges from other sources inhibits or disrupts the POTW, its
treatment processes or operations or its sludge processes, use or
disposal, or is a cause of a violation of the Authority's NPDES
permit.
The measure of the relative acidity or alkalinity of water
and is defined as the negative logarithm (base 10) of the hydrogen
ion concentration.
A treatment works which is owned by the Authority as defined
by section 502(4) of the Clean Water Act. This definition includes
any devices and systems used in the storage, treatment, recycling
and reclamation of municipal sewage or industrial wastes of a liquid
nature. It also includes all sewers, pipes and other conveyances that
convey wastewater to a POTW treatment plant. For purposes of this
article, the terms "sanitary sewer system" and "POTW" may be used
interchangeably.
A person who is registered with and authorized by the Department
of Environmental Protection to transport sewage sludge, water treatment
sludge, domestic septage, chemical toilet waste, grit trap waste,
or grease trap waste in accordance with current regulations.
The value of the test for total suspended solids, as described
in the latest edition of "Standard Methods for the Examination of
Water & Wastewater."
Any person, including those located outside the jurisdictional
limits of the Borough, who contributes, causes or permits the contribution
or discharge of wastewater into the POTW, including persons who contribute
such wastewater from mobile sources.
A.
Installations.
(1)
New facilities. Food processing or food service facilities which
are newly proposed or constructed, or existing facilities which will
be expanded or renovated to include a food service facility, where
such facility did not previously exist, shall be required to design,
install, operate and maintain a grease interceptor in accordance with
the Borough's adopted plumbing codes or other applicable codes
and ordinances. Grease interceptors shall be installed and inspected
prior to issuance of a certificate of occupancy.
(2)
Existing facilities. Existing grease interceptors must be operated
and maintained in accordance with the manufacturer's recommendations
and in accordance with these model standards, unless specified in
writing and approved by the Borough or its designee. In the event
an existing facility does not have a grease interceptor, the owner
shall be required to install a grease interceptor in accordance with
the Borough's adopted plumbing codes or other applicable codes
and ordinances.
(3)
All grease interceptor waste shall be properly disposed of at a facility
in accordance with all federal, state, or local regulations.
C.
Cleaning schedules.
(1)
Grease interceptors shall be cleaned as often as necessary to ensure
that sediment and floating materials do not accumulate to impair the
efficiency of the grease interceptor; to ensure the discharge is in
compliance with local discharge limits; and to ensure no visible grease
is observed in discharge.
(2)
Grease interceptors shall be completely evacuated a minimum of every
30 days, or more frequently when:
(a)
Twenty-five percent or more of the wetted height of the grease
trap or grease interceptor, as measured from the bottom of the device
to the invert of the outlet pipe, contains floating materials, sediment,
oils or greases; or
(b)
The discharge exceeds BOD, COD, TSS, FOG, pH, or other pollutant
levels established by the Authority; or
(c)
If there is a history of noncompliance.
(3)
Any person who owns or operates a grease interceptor may submit to
the Borough or its designee a request in writing for an exception
to the thirty-day cleaning frequency of their grease interceptor.
The Borough or its designee may grant an extension for required cleaning
frequency on a case-by-case basis when:
(a)
The grease interceptor owner/operator has demonstrated the specific
interceptor will produce an effluent, based on defensible analytical
results, in consistent compliance with established discharge limits
such as BOD, TSS, FOG, or other parameters as determined by the Borough
or its designee; or
(b)
Less than 25% of the wetted height of the grease interceptor,
as measured from the bottom of the device to the invert of the outlet
pipe, contains floating materials, sediment, oils or greases.
(4)
In any event, a grease interceptor shall be fully evacuated, cleaned,
and inspected at least once every 90 days.
D.
Self-cleaning: hydromechanical grease interceptors only.
(1)
Grease interceptor self-cleaning operators must receive approval
from the Borough or its designee to remove grease from their own grease
hydromechanical grease interceptors. The following conditions shall
apply:
(a)
The grease interceptor is no more than 100 GPM size.
(b)
Proper on-site material disposal methods are implemented (e.g.,
absorb liquid into solid form and dispose into trash);
(c)
Grease waste is placed in a leakproof, sealable container(s)
located on the premises and in an area for the transporter to pump-out;
and
(d)
Detailed records on these activities are maintained.
(2)
Grease interceptor self-cleaning operators must submit a completed
self-cleaning request to the Borough or its designee for approval.
The written request shall include the following information:
(a)
Business name and street address;
(b)
Grease interceptor operator name, title, and phone number;
(c)
Description of maintenance frequency, method of disposal, method
of cleaning and size (in gallons) of the grease interceptor; and
(d)
Signed statement that the operator will maintain records of
waste disposal and produce them for compliance inspections.
(3)
Self-cleaners must adhere to all the requirements, procedures and
detailed recordkeeping outlined in their approved application to ensure
compliance with this article. A maintenance log shall be kept by self-cleaning
operators that indicates, at a minimum, the following information:
(a)
Date the grease trap/interceptor was serviced;
(b)
Name of the person or company servicing the grease trap/interceptor;
(c)
Waste disposal method used;
(d)
Gallons of grease removed and disposed of;
(e)
Waste oil added to grease interceptor waste; and
(f)
Signature of the operator after each cleaning that certifies
that all grease was removed, disposed of properly, grease trap/interceptor
was thoroughly cleaned, and that all parts were replaced and in operable
condition.
(4)
Violations incurred by grease interceptors self-cleaners will be
subject to enforcement action including fines and/or removal from
the self-cleaner program.
E.
Manifest requirements.
(1)
Each pump-out of a grease interceptor must be accompanied by a manifest
to be used for recordkeeping purposes.
(2)
Persons who generate, collect and transport grease waste shall maintain
a record of each individual collection and deposit. Such records shall
be in the form of a manifest.
(a)
The manifest shall include:
[1]
Name, address, telephone, and any registration number of transporter;
[2]
Name, signature, address, and phone number of the person who generated
the waste and the date collected;
[3]
Type and amount(s) of waste collected or transported;
[4]
Name and signature(s) of responsible person(s) collecting, transporting,
and depositing the waste;
[5]
Date and place where the waste was deposited;
[6]
Identification (permit or site registration number, location, and
operator) of the facility where the waste was deposited;
[7]
Name and signature of facility on-site representative acknowledging
receipt of the waste and the amount of waste received;
[8]
The volume of the grease waste received; and
[9]
A consecutive numerical tracking number to assist transporters, waste
generators, and regulating authorities in tracking the volume of grease
transported.
(b)
Copies of manifests returned to the waste generator shall be
retained for three years and be readily available for review by the
Borough or its designee.
F.
Prohibited practices. No person shall introduce or cause, permit,
or suffer the introduction of any surfactant, solvent or emulsifier
into a grease interceptor. Surfactants, solvents, and emulsifiers
are materials which allow the grease to pass from the grease interceptor
into the collection system, and include but are not limited to enzymes,
soap, diesel, kerosene, terpene, and other solvents.
G.
Compliance monitoring.
(1)
Right of entry. The Borough or its designee shall have the right
to enter the premises of any user or potential user to determine whether
the user is complying with all requirements of this article and any
wastewater discharge permit or order issued hereunder. Users shall
allow the Borough or its designee ready access to all parts of the
premises for the purposes of inspection, sampling, records examination
and copying, and the performance of any additional duties.
(2)
Search warrants. If the Borough or its designee has been refused
access to a building, structure, or property, or any part thereof,
then the Borough or its designee may seek issuance of a search warrant.
In addition to those violations and remedies detailed herein,
any person, firm or corporation who shall violate any provision of
this article shall, upon conviction thereof, be subject to pay a fine
of not more than $1,000 per day of violation. Each day that a violation
of this article continues shall constitute a separate offense.
