Users shall provide wastewater treatment as necessary to comply with this chapter and shall achieve compliance with all categorical pretreatment standards, local limits, and the prohibitions set out in § 435-5 of this chapter within the time limitations specified by the EPA, the state, or the POTW, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated, and maintained at the user's expense. Detailed plans describing such facilities and operating procedures shall be submitted to the Superintendent, or his/her designee, for review, and shall be acceptable to the Superintendent, or his/her designee, before such facilities are constructed. The review of such plans and operating procedures shall in no way relieve the user from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to the City under the provisions of this chapter.
A.
Whenever deemed necessary, the Superintendent, or his/her designee,
may require users to restrict their discharge during peak flow periods,
designate that certain wastewater be discharged only into specific
sewers, relocate and/or consolidate points of discharge, separate
sewage wastestreams from industrial wastestreams, and impose such
other conditions as may be necessary to protect the POTW and determine
the user's compliance with the requirements of this chapter.
B.
The Superintendent, or his/her designee, may require any person discharging
into the POTW to install and maintain, on their property and at his/her
expense, a suitable storage and flow-control facility to ensure equalization
of flow. A wastewater discharge permit may be issued solely for flow
equalization.
C.
Users with the potential to discharge flammable substances may be
required to install and maintain an approved combustible gas detection
meter.
D.
Garbage grinders:
(1)
New establishments that provide resident care, including, but not limited to, hospitals, nursing care facilities, family care, and in-patient rehabilitation, and other uses as defined in the Unified Development Ordinance (UDO), Chapter 650, are required to install a garbage grinder unless otherwise approved by the POTW Superintendent.
(2)
Garbage is required to be properly shredded in order to be approved
to be discharged to the public sewer. Wastes classified as "properly
shredded garbage" contain all particles being carried freely under
the flow conditions normally prevailing in public sewers, with no
particle greater than one-half inch (1.27 centimeters) in any dimension.
The installation and operation of any garbage grinder equipped with
a motor of three-fourths horsepower (0.76 hp metric) or greater shall
be subject to review and approval of the City. The grinder shall be
owned, operated and maintained by the property owner.
(3)
The discharge from grinders is prohibited to be connected to a grease
interceptor.
E.
Fats, oils, and greases; grease interceptor requirements.
(1)
Grease interceptors (GI) for food service establishments (FSE). All
GI shall be of a type and capacity approved by the POTW Superintendent
based on an evaluation of the volume and characteristics of the discharge
in conjunction with the operating plan of the FSE. The POTW Superintendent
may require GI to be installed or modified at existing FSE where FSE
have caused or contributed to overflows and/or blockages, or when
existing FSE are remodeled.
(2)
All existing FSEs may be required to install a GI at the request
of the POTW Superintendent. The POTW Superintendent may require a
GI to be installed or modified in an existing FSE within 180 days
of notification by the City where the FSE has caused or contributed
to a hot spot, overflows and/or blockages, when any reconstruction,
rebuilding, or remodeling of 50% or more of the building occurs or
when the facility has an undersized, irreparable, or defective GI
as determined by the POTW Superintendent.
(3)
Location. All GI shall be so located to be easily accessible for
cleaning and inspection. The GI shall not be located in drive-through
lanes, drive aisles or parking stalls.
(4)
Sign-off inspection. Prior to the initial operation of any FSE, the
GI shall be inspected in accordance with City permitting practices.
(5)
Maintenance. It shall be the responsibility of the FSE to inspect its GI during the pumping procedure to ensure the trap is properly cleaned out and that all fittings and fixtures inside the trap are in working condition and functioning properly. In the event that actual operations of the GI fail to produce results that consistently prevent prohibitive discharges as defined in § 435-5, the owner of the FSE will be required by the POTW Superintendent to have the GI cleaned at a more frequent rate or install additional pretreatment as necessary.
(6)
Modifications. The POTW Superintendent or his/her designee may make
determinations of GI adequacy, need, design, appropriateness, application,
location, modification(s), and conditional usage based on review of
all relevant information regarding GI performance, facility site and
building plan review by all regulatory reviewing agencies and may
require repairs to, or modification or replacement of the GI.
F.
Grease interceptor (GI) maintenance.
A GI located inside a FSE will be inspected and cleaned weekly. A GI located outside a FSE on its property shall be inspected and the grease cap and solids blanket minimally cleaned every three months; the entire contents of the trap cleaned annually; and the GI repaired regularly, as needed, by the owner at his expense. Logs of inspection and cleaning shall be kept on site at the facility and be available for inspection by the City. It shall be the responsibility of the FSE to inspect its GI during the pumping procedure to ensure the trap is properly cleaned out and that all fittings and fixtures inside the trap are in working condition and functioning properly. In the event that actual operations of the GI fail to produce results that consistently prevent prohibitive discharges, as defined in § 435-5, or fail to meet local limits, as defined in § 435-8, the owner of the FSE will be required by the POTW Superintendent to have the GI cleaned at a more frequent rate or install or modify pretreatment as necessary.
G.
Food service establishments; best management practices.
(1)
All FSEs that discharge nonresidential source waste are required
to develop and implement best management practices (BMPs) that include:
(a)
Proper storage of unused cooking oil;
(b)
Segregation, collection, and proper storage of waste cooking
oil;
(c)
Disposal of food waste into the trash or garbage disposal;
(d)
Installation of drain screens;
(e)
Wipe-up grease spills before using water;
(f)
Employee training;
(g)
Grease interceptor maintenance;
(h)
Recordkeeping requirements for GI cleaning and maintenance;
(i)
Notifications required for spills or slug loads changes;
(2)
The City may require the submittal of BMP and documentation of procedures
required in this section upon notice of violation or observance of
slugs, hot spots, grease deposits, etc. in the wastewater system downstream
from the FSE. Review of such plans and documentation of procedures
by the City shall not relieve the user from the responsibility to
modify the user's facility or BMP and procedures as necessary to meet
all requirements of this chapter. Review by the City does not constitute
an approval of a BMP plan and procedures, and the City and its designee(s)
are not to be construed as responsible for the actions of the user
and any impacts the user may cause as a result of a spill or slug
discharge.
At least once every two years, the POTW shall evaluate whether
industrial/commercial users need an accidental discharge/slug control
plan. The Superintendent, or his/her designee, may require any user
to develop, submit for approval, and implement such a plan. Note:
All significant industrial users (SIUs) are required to prepare and
implement a slug control plan as documented in their wastewater discharge
permits [40 CFR 403.8(f)(1)(iii)(B)(6)]. New SIUs will be required
to prepare the plan within one year of the issuance of their wastewater
discharge permit [40 CFR 403.8(f)(2)(vi)]. An accidental discharge/slug
control plan shall address, at a minimum, the following:
A.
General information: name and address, facility contact, description
of discharge practices, including non-routine batch discharges, security
provisions and employee training;
B.
Facility layout flow diagrams: general layout, including mapping
of manufacturing, storage, transportation, disposal areas, location
of all floor drains, wash sinks, etc.;
C.
Material inventory: description of stored chemicals, types, volumes,
containers, etc.;
D.
Slug reporting: procedures for immediately notifying the Superintendent, or his/her designee, of any accidental or slug discharge, as required by § 435-35 of this chapter;
E.
Spill and leak prevention equipment, operations and maintenance procedures:
definition of available equipment, plans to obtain needed equipment
and procedures to prevent adverse impact from any accidental or slug
discharge. Such procedures include, but are not limited to, inspection
and maintenance of storage areas, handling and transfer of materials,
loading and unloading operations, control of plant site runoff, worker
training, building of containment structures or equipment, and measures
for containing toxic organic pollutants, including solvents;
F.
Emergency response equipment and procedures: inventory and location
of equipment and procedures;
G.
Training program: assurance that the plan is implemented by providing
for employee training; and
H.
Certification: a certification by a professional (person with knowledge
of plan and its purpose) that the plan is adequate to prevent and
control slug and accidental discharges.
A.
Septic tank waste is prohibited.
B.
The Superintendent, or his/her designee, shall require haulers of
industrial waste to obtain wastewater discharge permits. The Superintendent,
or his/her designee, may require generators of hauled industrial waste
to obtain wastewater discharge permits. The Superintendent, or his/her
designee, also may prohibit the disposal of hauled industrial waste.
The discharge of hauled industrial waste is subject to all other requirements
of this chapter.
C.
Industrial waste haulers may discharge loads only at locations designated
by the Superintendent, or his/her designee. No load may be discharged
without the prior consent of the Superintendent, or his/her designee.
The Superintendent, or his/her designee, may collect samples of each
hauled load to ensure compliance with applicable standards. The Superintendent,
or his/her designee, may require the industrial waste hauler to provide
a waste analysis of any load prior to discharge.
D.
Industrial waste haulers must provide a waste-tracking form for every
load. This form shall include, at a minimum, the name and address
of the industrial waste hauler, permit number, truck identification,
names and addresses of sources of waste, and volume and characteristics
of waste. The form shall identify the type of industry, known or suspected
waste constituents, and whether any wastes are RCRA hazardous wastes.
