No person shall discharge or cause to be discharged
any stormwater, surface water, groundwater, roof runoff, subsurface
drainage, uncontaminated cooling water or unpolluted industrial process
waters to any sanitary sewer.
Stormwater and all other unpolluted drainage
shall be discharged to such sewers as are specifically designated
as storm sewers, or to a natural outlet approved by the Town. Industrial
cooling water or unpolluted process waters may be discharged, on approval
of the Town, to a storm sewer or natural outlet.
No persons shall discharge or cause to be discharged
any of the following described waters or wastes to any public sewers:
A.
Any gasoline, benzene, naphtha, fuel oil or other
flammable or explosive liquid, solid or gas.
B.
Any waters or wastes containing toxic or poisonous
solids, liquids or gases in sufficient quantity, either singly or
by interaction with other wastes, to injure or interfere with any
sewage treatment process, constitute a hazard to humans or animals,
create a public nuisance, or create any hazard in the receiving waters
of the sewage treatment plant, including but not limited to cyanides
in excess of two milligrams per liter as CN in the wastes as discharged
to the public sewer.
C.
Any waters or wastes having pH lower than 6.0, or
having any other corrosive property capable of causing damage or hazard
to structures, equipment and personnel of the sewage works.
D.
Solid or viscous substances in quantities or of such
size capable of causing obstruction to the flow in sewers or other
interference with the proper operation of the sewage works such as,
but not limited to, ashes, cinders, sand, mud, straw, shavings, metal,
glass, rags, feathers, tar, plastics, wood, unground garbage, whole
blood, paunch manure, hair and fleshings, entrails and paper dishes,
cups, milk containers, etc., either whole or ground by garbage grinders.
No person shall discharge or cause to be discharged
the following described substances, materials, waters or wastes if
it appears likely, in the opinion of the Town, that such wastes can
harm either the sewers, sewage treatment process or equipment, have
an adverse effect on the receiving stream or can otherwise endanger
life, limb, public property or constitute a nuisance. In forming its
opinion as to the acceptability of these wastes, the Town will give
consideration to such factors as the quantities of subject wastes
in relation to flows and velocities in the sewers, materials of construction
of the sewers, nature of the sewage treatment plant, degree of treatability
of wastes in the sewage treatment plant and other pertinent factors.
The substances prohibited are:
A.
Any liquid or vapor having a temperature higher than
150º F. (65º C.).
B.
Any water or waste containing fats, wax, grease or
oils, whether emulsified or not, in excess of 100 milligrams per liter
or containing substances which may solidify or become viscous at temperatures
between 32º and 150º F. (0º and 65º C.).
C.
Any garbage that has not been properly shredded. The
installation and operation of any garbage grinder equipped with a
motor of 1/2 horsepower (0.46 horsepower metric) or greater shall
be subject to the review and approval of the Town.
D.
Any waters or wastes containing strong acid iron-pickling
wastes or concentrated plating solutions, whether neutralized or not.
E.
Any waters or wastes containing iron, chromium, copper,
zinc and similar objectionable or toxic substances; or wastes exerting
an excessive chlorine requirement or excessive chemical treatment,
to such degree that any such material received in the composite sewage
at the sewage treatment works exceeds the limits established by the
Town for such materials.
F.
Any waters or wastes containing phenols or other taste-
or odor-producing substances, in such concentrations, exceeding limits
which may be established by the Town as necessary, after treatment
of the composite sewage, to meet the requirements of the state, federal
or other public agencies of jurisdiction for such discharge to the
receiving waters.
G.
Any radioactive wastes or isotopes of such half-life
or concentration as may exceed limits established by the Town in compliance
with applicable state or federal regulations.
H.
Any water or wastes having a pH in excess of 9.5.
I.
Materials which exert or cause:
(1)
Unusual concentrations of inert suspended solids,
such as but not limited to, fuller's earth, lime slurries and lime
residues, or of dissolved solids, such as but not limited to, sodium
chloride and sodium sulfate.
(2)
Excessive discoloration, such as but not limited to,
dye wastes and vegetable tanning solutions.
(3)
Unusual BOD, chemical oxygen demand or chlorine requirements
in such quantities as to constitute a significant load on the sewage
treatment works.
(4)
Unusual volume of flow or concentration of wastes
constituting "slugs" as defined herein.
J.
Waters or wastes containing substances which are not
amenable to treatment or reduction by the sewage treatment processes
employed, or are amenable to treatment only to such degree that the
sewage treatment plant effluent cannot meet the requirements of other
agencies having jurisdiction over discharge to the receiving waters.
A.
If any waters or wastes are discharged, or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in § 91-20 of this article, and which, in the judgment of the Town, may have a deleterious effect upon the sewage works, processes, equipment or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Town may:
B.
If the Town permits the pretreatment or equalization
of waste flows, the design and installation of the plants and equipment
shall be subject to the requirements of all applicable codes, ordinances
and laws.
[Amended 10-7-2013 by Ord. No. 2013-14]
A.
Grease, oil and sand interceptors shall be provided when, in the
opinion of the Town, they are necessary for the proper handling of
liquid wastes containing grease in excessive amounts, or any flammable
wastes, sand or other harmful ingredients; except that such interceptors
shall not be required for private living quarters or dwelling units.
All interceptors shall be located as to be readily and easily accessible
for cleaning and inspection.
B.
In addition to all other sections of this chapter, the following
special provisions apply to establishments required to provide a grease
trap, including but not limited to FSE:
(1)
Grease trap maintenance: over 50 gallons.
(a)
Grease trap maintenance is critical to the grease trap's
performance. Each FSE is required to maintain the grease trap in satisfactory
operating condition by the periodic removal of the entire contents
of the grease trap. All costs for inspections, pumping, sampling,
analysis, or other maintenance is the responsibility of the FSE owner
or operator. Property owners of commercial properties are responsible
for the installation and maintenance of a grease trap that serves
multiple FSEs that are located on a single parcel or development.
To ensure that the grease trap is working as it was designed, the
following maintenance procedures are required for grease traps over
50 gallons:
[1]
Content removal. Maintenance must include the complete removal
of the entire contents, including floating materials, wastewater,
settled solids and grease accumulated on the side of the device. Decanting
or discharging of removed waste or wastewater back into the grease
trap from which the waste or wastewater was removed or any other grease
trap for the purpose of reducing the volume to be disposed of is strictly
prohibited. No FOG that has accumulated in a grease trap is allowed
to pass into any sewer lateral, sewer system, storm drain, or public
right-of-way during maintenance activities.
[2]
Maintenance frequency. Unless a variance is granted by the Town Council pursuant to § 91-36.2 below, all grease traps must be pumped out completely by a permitted waste hauler whenever the accumulation of grease and solids is 25% of the grease trap's overall liquid depth or at least once every 90 days, whichever is more stringent. Exception to this minimum frequency of pumping may be made with special written approval from the Town for generators of small quantities of grease waste. In no case will the frequency of pumping be less than once every six months.
[3]
Prohibition of additives. The introduction of additives such
as bacteria, enzymes, emulsifiers, or similar chemicals designed for
the purpose of emulsifying or controlling FOG discharge into grease
traps or associated plumbing is strictly prohibited.
[4]
Septage hauler. All FSEs must ensure that all recovered contents
of the grease trap be removed and disposed of by a permitted septage
hauler.
(2)
Self-cleaning grease trap maintenance: under 50 gallons.
(a)
Proper on-site material disposal methods shall be demonstrated
and implemented (e.g., absorb liquids into solid form and dispose
into trash, and collected grease is transported by a permitted septage
hauler).
(b)
The grease and floatable solids must be removed a minimum of
once a week, and the entire contents of the grease trap is removed
from the grease trap and baffles at a minimum of once every 30 days.
(c)
All records of grease trap self-cleaning maintenance must be
handwritten with permanent ink and logged. Grease trap self-cleaning
maintenance logs must include, at a minimum, the date and time of
cleaning, total gallons removed, method of disposal, and name of person
witnessing the cleaning. The maintenance logs must be readily available
for inspection and retained on site for a minimum of three years.
(3)
Employee training.
(a)
All employees are required to be trained on and made aware of
all required and recommended BMPs for preventing FOG from entering
the sewer system. They must have a general knowledge of the function
of the grease trap. New employees must be initially trained within
one week of employment. Each employee must receive periodic refresher
training at intervals not to exceed one year. Documentation of BMPs
employee training must be kept on site at the establishment and readily
available for review by the Town.
(4)
Best management practices.
(a)
All FSEs are required to implement the following BMPs in order
to prevent and reduce the quantity of FOG discharged to the grease
trap, sanitary sewer system, and storm sewer system. Each FSE shall
adopt and create BMPs that work for the establishment's needs.
[1]
Scrape pots and pans prior to washing.
[2]
Do not pour, scrape, or otherwise dispose of fats, oils, or
grease into the sink or drains.
[3]
Collect fryer oil and store in barrels for recycling.
[4]
Dry sweep floors prior to washing and mopping. Place collected
material from sweeping in trash receptacles.
[5]
Dump mop water only to drains connected to your FOG treatment
system.
[6]
Use absorbents to soak up spills containing fats, oils, and
grease.
[7]
Do not put food (including liquid food), including milkshakes,
syrups, batters and gravy down the drain. Use strainers on sinks and
floor drains to prevent solid material from entering the sewer system.
[8]
Post "No FOG" signs near sinks and drains. If you have an automatic
grease recovery device, empty the collection pan before it becomes
full.
[9]
Provide your employees with the proper equipment for cleaning
your grease trap/interceptor or grease recovery device.
[10]
Train all kitchen staff in the best management practices for
FOG disposal and the impacts of FOG accumulation in the sewer system.
[11]
Provide regular refresher training/discussion for proper disposal
of fats, oils, and grease for all employees.
[12]
Establish a schedule for cleaning grease-laden areas (e.g.,
fryers, vents, grills, etc.).
[13]
Inspect grease traps/interceptors after pumping to ensure adequate
cleaning and proper functioning.
[14]
Drain screens shall be installed on all drainage pipes in food
preparation areas. This includes kitchen sinks, floor drains, and
mop sinks, Drain screens shall be cleaned as needed.
Where preliminary treatment or flow equalizing
facilities are provided for any waters or wastes, they shall be maintained
continuously in satisfactory and effective operation by the owner
at his expense.
When required by the Town, the owner of any
property serviced by a building sewer carrying industrial wastes shall
install a suitable control structure together with such necessary
meters and other appurtenances in the control structure to facilitate
observation, sampling and measurement of the wastes. Such structure,
when required, shall be accessibly and safely located, and shall be
constructed in accordance with plans approved by the Town. The structure
shall be installed by the owner at his expense, and shall be maintained
by him so as to be safe and accessible at all times.
All measurements, tests and analyses of the
characteristics of waters and wastes to which reference is made in
this Part 1 shall be determined in accordance with the latest edition
of Standard Methods for the Examination of Water and Wastewater, published
by the American Public Health Association, and shall be determined
at the control structure provided, or upon suitable samples taken
at said control structure. In the event that no special structure
has been required, the control structure shall be considered to be
the nearest downstream manhole in the public sewer to the point at
which the building sewer is connected. Sampling shall be carried out
by customarily accepted methods to reflect the effect of constituents
upon the sewage works and to determine the existence of hazards to
life, limb and property. (The particular analyses involved will determine
whether a twenty-four-hour composite of all outfalls of a premise
is appropriate or whether a grab sample or samples should be taken.
Normally, but not always, BOD and suspended solids analyses are obtained
from twenty-four-hour composites of all outfalls whereas pH's are
determined from periodic grab samples.)
No statement contained in this article shall
be construed as preventing any special agreement or arrangement between
the Town and any industrial concern whereby an industrial waste of
unusual strength or character may be accepted by the Town for treatment,
subject to the payment thereof, by the industrial concern.
[Added 10-7-2013 by Ord. No. 2013-14]
A.
Users shall retain and make available upon request of authorized
representatives of the Town, the county, the state, or the Environmental
Protection Agency all records required to be collected by the user
pursuant to this chapter.
B.
These records shall remain available for a period of at least three years after their collection. In addition, an FSE shall provide quarterly a copy of the records required to be kept and created pursuant to § 91-26.1C below and may be submitted to the Town with payment of the FSE's water bill.
C.
Records shall include, when applicable, grease trap maintenance and
repair service statements, grease trap self-cleaning maintenance logs,
septage hauler statement of service for FOG removal, and employee
training logs.
D.
This period shall be extended during any litigation concerning compliance
with this chapter or permit conditions.
