The purpose of this article is to establish uniform requirements
for oil and grease interceptor/trap systems and their maintenance,
to prevent the discharge of certain grease, fats, grit and the like
into the public sewer system and to establish penalties for violations
of this article.
As used in this article, the following terms shall have the
meanings indicated:
AUTHORIZED AGENT
An employee, consultant, or authorized representative who
is delegated to function as an agent of the Board of Supervisors to
conduct inspections of grease interceptors and/or traps within Skippack
Township.
FATS, OILS, AND GREASES (FOG)
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."
GREASE INTERCEPTOR
A plumbing appurtenance or appliance that is installed in
a sanitary drainage system to intercept nonpetroleum fats, oils, and
greases (FOG) from a wastewater discharge and is identified by volume,
thirty-minute retention time, baffle(s), a minimum of two compartments,
a minimum total volume of 1,000 gallons, and gravity separation. These
interceptors are designed by a registered professional engineer. Gravity
grease interceptors shall be installed outside unless the applicant
receives written approval otherwise.
PERSON
Any individual, partnership, corporation, limited liability
company, or any other legal entity.
PROHIBITED DISCHARGE STANDARDS
The standards as described in the current Wastewater Discharge
Standards of the Lower Perkiomen Valley Regional Sewer Authority and
Skippack Township. The maximum allowable concentration FOG shall not
exceed 100 mg/l.
An oil and grease interceptor must meet the following design
criteria which shall be subject to the requirements of the Uniform
Plumbing Code:
A. Provide a minimum detention time of 30 minutes which shall be calculated
based upon the maximum flow rate of all fixtures, equipment and sink
compartments. The flow rate shall be calculated by the drainage load
divided by the drainage rate. The drain load calculation shall utilize
75% of the capacity of the fixture, equipment or sink compartment.
The drainage rate shall be one minute. (Design No. 1 is intended for
large institutional or industrial facilities with the potential for
high peak flows.)
B. The grease interceptor shall be located outside of the building.
C. The minimum usable volume shall be 1,000 gallons and provide sufficient
detention time to allow the temperature of the wastewater to cool
to the point where all of the FOG is retained by the grease interceptor/trap.
(Design No. 3 will address the vast majority of installations.)
D. The grease interceptor/trap shall contain two compartments with an
access hatch for each compartment for cleaning and maintenance.
E. A separate domestic waste line shall be installed to the structure
lateral at a point below the grease interceptor/trap.
Skippack Township, upon notice from any stakeholder and upon
a confirmation determination by Township staff that an imminent public
health or safety hazard exists due to failure of a proper owner and/or
utilizer to maintain, repair or replace an oil and grease interceptor/trap
system, shall have the authority to contract to have the work performed.
The owner of record of the property will be charged for the work performed
and, if necessary, a lien will be entered therefor in accordance with
the law.
The enforcement of this article shall be by action brought before
the District Justice in the same manner provided for the enforcement
of summary offenses under the Pennsylvania Rules of Criminal Procedure.
Any person who violates any provisions of this article shall, upon
conviction thereof by summary proceedings, be sentenced to pay a fine
of not more than $1,000 per violation plus costs and, in default of
said fine and costs, to undergo imprisonment to the extent allowed
by law for the punishment of summary offenses. After notice of a violation,
each day that the violation is found to exist shall be considered
a separate violation. Each violation under each section of this article
shall constitute a separate offense.
A schedule of Township administrative fees is adopted by a resolution
of the Skippack Township Board of Supervisors to include such costs
as issuance, inspections, and items incidental to the grease control
program.