No person shall discharge, or cause to be discharged, any wastewater
from FSEs directly or indirectly into the public sewer without first
obtaining a FOG WDP pursuant to this chapter.
(Ord. 4683 § 1, 2008)
No FSE shall discharge FOG, or cause FOG to be discharged into the public sewer that causes an SSO, exceeds a concentration level set forth in Section 14.26.140 or that may accumulate and/or cause or contribute to blockages in the public sewer or the public sewer lateral which connects the FSE to the public sewer.
(Ord. 4683 § 1, 2008)
Any FSE determined by the director to have contributed to a
sewer blockage, SSO or any public sewer obstruction resulting from
the discharge of wastewater or waste containing FOG, shall be ordered
to install and maintain a grease interceptor, and may be subject to
a plan to abate the nuisance created by sewer line failures and blockages,
SSOs or any other public sewer obstruction. SSOs may cause threat
and injury to public health, safety, and welfare of life and property
and are hereby declared public nuisances. Furthermore, sewer lateral
failures and SSOs caused by FSEs alone or collectively, are the responsibility
of the private property owner, FSE, and individuals who are responsible
officers or owners of the FSE. If the director determines that the
public health and safety require the city to act immediately to contain
and clean up any SSO caused by blockage of a private or public sewer
lateral or system serving an FSE, or if the city so acts at the request
of the property owner or operator of the FSE, or because of the failure
of the property owner or FSE to abate the condition causing immediate
threat of injury to the health, safety, welfare, or property of the
public, the city's costs for such abatement may be entirely borne
by the property owner or the owner/operator of the FSE, and individuals
who are responsible officers or owners of the FSE and may constitute
a debt to the city, due and payable upon the city's request for reimbursement
of such costs depending upon the director's determination of the cause
of the SSO.
(Ord. 4683 § 1, 2008)
Every FSE shall implement BMPs in its operations, in accordance
with the requirements and guidelines established by the director,
to minimize the discharge of FOG to the grease control device and/or
the public sewer. Detailed requirements for BMPs shall be specified
in the FOG WDP and all FSEs are required, at a minimum, to comply
with the BMPs set forth therein as well as any additional BMPs established
by the director. BMPs may include, but are not limited to, kitchen
practices and employee training procedures that are essential in minimizing
FOG discharge to the public sewer.
(Ord. 4683 § 1, 2008)
FSEs are prohibited from doing any of the following:
A.
Installing
food grinders in the plumbing system of new construction. All FSEs
that undergo a change in operations or remodeling shall remove any
existing food grinders concurrent with such change or remodeling,
except as otherwise expressly allowed by the director.
B.
Introducing
any additives into an FSE's plumbing system, grease trap and/or grease
interceptor for the purpose of emulsifying FOG, biologically and/or
chemically treating FOG for grease remediation and/or as a supplement
to grease interceptor maintenance, unless a specific written authorization
from the director is first obtained.
C.
Disposing
waste cooking oil into the public sewer or storm drain. All waste
cooking oils shall be collected and stored properly in receptacles
such as rendering bins, barrels or drums for recycling or other acceptable
methods of disposal.
D.
Discharging
wastewater with temperatures in excess of 140 degrees Fahrenheit into
any grease control device, including grease traps and grease interceptors.
E.
Discharging
wastes containing fecal materials from toilets, urinals, washbasins
or other fixtures to waste lines directed to grease interceptors and/or
other grease control devices, or vice versa.
F.
Discharging
a FOG and solid materials removed from a grease control device to
the public sewer. Grease removed from grease interceptors shall be
waste hauled to an approved disposal site as part of the operation
and maintenance requirements for grease interceptors.
G.
Operating
grease interceptors with FOG and solids accumulation exceeding 25
percent of the design hydraulic depth of the grease interceptor.
(Ord. 4683 § 1, 2008)
Every FSE is required at the time of construction, remodel and/or change in operations to install, operate and maintain an approved type and adequately sized grease interceptor necessary to maintain compliance with the objectives of this chapter, subject to the variance and waiver provisions of Section 14.14.130. The grease interceptor shall be adequate to separate and remove FOG contained in wastewater from FSEs prior to discharge to the public sewer as determined by the then current Uniform Plumbing Code (UPC). Fixtures, equipment and drain lines located in the food preparation and clean up areas of any FSEs that are a source of FOG discharges shall be connected to the grease interceptor. Compliance shall be established as follows:
A.
New
construction of FSEs. New construction of any FSE shall include complete
installation of an approved type and adequately sized grease interceptor,
with a minimum size of 1,000 gallons, prior to commencing discharges
of wastewater to the public sewer.
B.
Existing
FSEs.
1.
Any
existing FSE, which, in the director's determination, has caused or
contributed to grease-related blockage in the public sewer, has one
or more sewer laterals connected to hot spots and/or has contributed
significant FOG to the public sewer, shall be deemed to have reasonable
potential to adversely impact the public sewer and shall be required
to install grease interceptors within 180 days upon issuance of written
notification by the director.
(Ord. 4683 § 1, 2008)
Any owner of a commercial property where FSEs are located or
their official designee shall be responsible for the installation
and maintenance of a grease interceptor serving multiple FSEs that
are located on a single parcel.
(Ord. 4683 § 1, 2008)
A.
Any
FSE required by this chapter to provide FOG pretreatment shall install,
operate and maintain an approved type and adequately sized grease
interceptor necessary to maintain compliance with the objectives of
this chapter.
B.
Grease
interceptor sizing and installation shall conform to the then current
edition of the Uniform Plumbing Code. Grease interceptors shall be
constructed in accordance with the design approved by the director
and shall have a minimum of two compartments with fittings designed
for grease retention.
C.
The
grease interceptor shall be installed at a location where it shall
be at all times easily accessible for inspection, cleaning, and removal
of accumulated grease.
D.
An
access manhole, with a minimum diameter of 24 inches, shall be provided
over each grease interceptor chamber and each sanitary tee. The access
manholes shall extend at least to finished grade and be designed and
maintained to prevent water inflow or infiltration. The manholes shall
also have readily removable covers to facilitate inspection, grease
removal and wastewater sampling activities.
(Ord. 4683 § 1, 2008)
A.
No
new construction, change in operation or remodel of an FSE shall include
installation of a grease trap without prior express written permission
from the director.
B.
Existing
grease traps shall be maintained in efficient operating condition
by daily removal of the accumulated grease.
C.
Grease
traps shall be maintained free of all food residues and any FOG waste
removed during the cleaning and scraping process.
D.
Grease
traps shall be inspected periodically to check for leaking seams and
pipes, and for effective operation of the baffles and flow regulating
device. Grease traps and their baffles shall be maintained free of
all caked-on FOG and waste. Removable baffles shall be removed and
cleaned during the maintenance process.
E.
Dishwashers
and food waste disposal units shall not be connected to or discharged
into any grease trap.
(Ord. 4683 § 1, 2008)
A.
Grease
interceptors shall be maintained in efficient operating condition
by periodic removal of the full content of the interceptor, which
includes wastewater, accumulated FOG, floating materials, sludge and
solids.
B.
All
grease interceptors shall be maintained in a manner consistent with
the maintenance frequency approved by the director.
C.
All
grease interceptors are required to have grease retention fittings
as designed for proper function. Any interceptor that does not have
the grease retention fittings shall be repaired and/or retro fitted
with appropriate grease retention fittings.
D.
No
FOG that has accumulated in a grease interceptor shall be allowed
to pass into any sewer lateral, public sewer, storm drain or public
right of way, or onto the surface of any street or parking area.
E.
The
director may require any FSE with a grease interceptor to submit data
and information necessary to establish the required maintenance frequency
of the grease interceptor.
F.
The
required maintenance frequency for every FSE with a grease interceptor
shall be determined in one of the following methods:
1.
Grease
interceptors shall be fully pumped out and cleaned at a frequency
such that the combined FOG and solids accumulation in the grease interceptor
does not exceed 25 percent of the total designed hydraulic depth of
the grease interceptor. This is to ensure that the minimum hydraulic
retention time and required available hydraulic volume is maintained
to effectively intercept and retain FOG from being discharged to the
public sewer.
2.
Every
FSE with a grease interceptor shall fully pump out and clean its grease
interceptor not less than once every six months.
3.
Grease interceptors shall be fully pumped out and cleaned quarterly when the frequency described in Section 14.14.120(F)(1) has not been established. The maintenance frequency shall be adjusted when sufficient data have been obtained to establish an average frequency based on the requirements described in Section 14.14.120(F)(1) and guidelines adopted by the city pursuant to the FOG control program. The city may change the required maintenance frequency at any time to reflect changes in actual operating conditions in accordance with the FOG control program. Based on the actual generation of FOG from the FSE, the required maintenance frequency may increase or decrease.
4.
The owner, operator or FOG WDP permittee of an FSE may submit a request to the director for a change in the required maintenance frequency at any time. The FSE has the burden of responsibility to demonstrate that the requested change in frequency reflects actual operating conditions based on the average FOG accumulation over time and meets the requirements described in Section 14.14.120(F)(1), and that it is in full compliance with the conditions of its FOG WDP and this chapter. Upon determination by the director that the requested revision is justified, the FOG WDP shall be revised accordingly to reflect the change in required maintenance frequency.
5.
If the grease interceptor, at any time, contains FOG and solids accumulation exceeding the requirements described in Section 14.14.120(F)(1), the FSE shall be required to have the grease interceptor serviced immediately such that all FOG, and other materials are completely removed from the grease interceptor. If deemed necessary, the director may also increase the required maintenance frequency of the grease interceptor.
G.
Wastewater,
accumulated FOG, floating materials, sludge/solids and other materials
removed from the grease interceptor shall be disposed of by waste
haulers at an approved disposal site in accordance with all applicable
federal, state and/or local laws.
H.
The
director may direct city staff to service an FSE's grease interceptor
if, in the opinion of the director, the FSE has failed to comply with
the terms of the FOG WDP or with this ordinance. The FSE shall be
responsible for any and all expenses of the city in undertaking such
work.
(Ord. 4683 § 1, 2008)
A.
Variance
From Grease Interceptor or Grease Trap Requirements. An FSE may request
that the Director grant a variance from the grease interceptor or
grease trap requirement to allow alternative pretreatment technology
in lieu of a grease interceptor or grease trap, if the FSE demonstrates
that the alternative equals or exceeds the effectiveness of a grease
interceptor or grease trap, and that it is impossible or impracticable
to install, operate or maintain a grease interceptor or a grease trap.
The director's determination to grant a variance will be based upon,
but not limited to, evaluation of the following conditions:
1.
There
is no adequate space for installation and/or maintenance of a grease
interceptor or a grease trap.
2.
There
is no adequate slope for gravity flow between kitchen plumbing fixtures
and the grease interceptor or the grease trap and/or between the grease
interceptor or the grease trap and the private collection lines or
the public sewer.
3.
The
FSE can prove that the alternative pretreatment technology is equally
or more effective than a grease interceptor or a grease trap in controlling
its FOG discharge. In addition, the FSE must be able to demonstrate,
after installation of the proposed alternative pretreatment, its effectiveness
to control FOG discharge through downstream visual monitoring of the
public sewer, for at least three months, at its own expense. A variance
may be granted if the results show no visible accumulation of FOG
in its lateral and/or tributary downstream sewer lines. Any variance
issued pursuant to this section may be revoked at any time in the
discretion of the director.
B.
Conditional
Waiver of Requirement to Install Grease Interceptor or Grease Trap.
A conditional waiver of the requirement to install a grease interceptor
or a grease trap may be granted for FSEs that the director determines
to have negligible FOG discharge and insignificant impact to the public
sewer. Although a waiver from installation of a grease interceptor
or a grease trap may be granted, the FSE may be required to provide
space and plumbing segregation for future installation of a grease
interceptor or a grease trap. The director's determination to grant
or revoke a conditional waiver shall be based upon, but not limited
to, evaluation of the following conditions:
1.
Quantity
of FOG discharge as measured or indicated by the size of the FSE based
on water usage, menu, seating capacity, number of meals served, amount
of on-site consumption of prepared food, number of plumbing fixtures
and other conditions that may reasonably be shown to contribute to
FOG discharges.
2.
Adequacy
of implementation of BMPs and compliance history.
3.
Sewer
size, grade, condition based on visual and other information, FOG
deposition in the sewer by the FSE, and history of maintenance and
SSOs caused by FOG from the FSE.
4.
Changes
in operations that significantly affect FOG discharge.
5.
Any
other condition that the director deems reasonably related to the
generation of FOG discharges.
C.
Waiver of Grease Interceptor or Grease Trap Installation Requirement With a Grease Disposal Mitigation Fee. Where the installation of a grease interceptor or a grease trap is not feasible and no equivalent alternative pretreatment can be installed, an FSE may be granted a waiver of the grease interceptor or grease trap requirement upon the payment of a grease disposal mitigation fee as described in Section 14.14.160. Additional requirements may also be imposed to mitigate the discharge of FOG into the public sewer. The director's determination to grant the waiver upon the payment of a grease disposal mitigation fee will be based upon, but not limited to, evaluation of the following conditions:
1.
There
is inadequate space for installation and/or maintenance of a grease
interceptor or a grease trap.
2.
There
is inadequate slope for gravity flow between kitchen plumbing fixtures
and the grease interceptor or the grease trap and/or between the grease
interceptor or grease trap and the private collection lines or the
public sewer.
3.
A
variance from grease interceptor or grease trap installation to allow
alternative pretreatment technology cannot be granted.
D.
Application
for Variance or Waiver of Requirement for Grease Interceptor or Grease
Trap. An FSE may submit to the City of Roseville industrial waste
division an application for waiver or variance from the grease interceptor
or grease trap requirement. The FSE bears the burden of demonstrating
that the installation of a grease interceptor or a grease trap is
not feasible or otherwise required. Upon determination by the director
that reasons are sufficient to justify a variance or waiver, the FOG
WDP will be issued or revised to include the variance or waiver and
relieve the FSE from the requirement.
E.
Terms
and Conditions of Variance or Waiver. A variance or waiver shall contain
the terms and conditions that serve as the basis for its issuance.
A variance or waiver may be revoked by the director at any time upon
his or her determination that any of the terms or conditions for its
issuance is not satisfied or if the conditions upon which the variance
or waiver was based have changed so that the justification for the
variance or waiver no longer exists. The variance or waiver shall
be valid so long as the FSE remains in compliance with the terms and
conditions until the expiration date specified in the variance or
waiver.
(Ord. 4683 § 1, 2008)
