|
|
|
|
Chapter 7 BUILDING, ELECTRICAL, GAS, PLUMBING AND
SEWER CODES, INSPECTOR
|
|
Article 7-4 PLUMBING AND SEWER CODE 7-401 Plumbing and Sewer Inspector. There is hereby created the office of Plumbing and Sewer Inspector for the
City of Every plumber, before doing any plumbing work in any building, except in
cases of repair (and repairs are to consist of leaks in waste or supply
pipes), shall file with the City Plumbing and Sewer Inspector, upon proper
blanks to be provided, a full description of the work to be done, and shall
do no such work without a proper permit from the City Plumbing and Sewer
Inspector, authorizing the same; provided, that in buildings which are
condemned by the City Council because of unsanitary condition, no plumbing
shall be considered as coming under the head of repairs, but all plumbing
shall be done as in the case of new buildings. Where special fixtures or
traps are required that do not conform to the requirements of this Ordinance,
a special permit may be issued by the Plumbing and Sewer Inspector for such
jobs, if in is judgment the conditions demand the use of such fixtures or
traps. (Ord. No. 36-2, Rev. Ord. 1938; Rev. Ord. 1963). Regulation
of Use of Public and Private Sewers and Drains Private Wastewater Disposal,
the Installation and Connection of Building Sewers, and the Discharge of
Waters, Wastes and Industrial Wastes Into the Public Sewer Systems; Penalties
for Violations of This Ordinance. Section 1. Purpose and Objective.
(a). To prevent the introduction of pollutants into the municipal wastewater
system which will interfere with the operation of the system or contaminate
the resulting sludge; (b). To prevent the introduction of pollutants into the municipal wastewater system which will pass through the system, inadequately treated, and into receiving water or the atmosphere or otherwise be incompatible with the system;
1-04. This ordinance shall apply to the City of 1-05. Except as otherwise provided herein, the Projects & Programs
Director of the City's Publicly Owned Treatment Works shall administer,
implement, and enforce the provisions of this ordinance.
Section 2. Definitions.
2-01. Unless the context specifically indicates otherwise, the
following terms and phrases, as used in this ordinance, shall have the
meanings hereafter designated: 2-02. Act or the Act. The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 U.S.C. 1251, et seq.
2-04. Authorized Representative of Industrial User. An authorized representative
of an Industrial User may be:
(a) A principle executive officer of at least the level of
vice-president, if the Industrial User is a corporation;
(b) A general partner or proprietor if the Industrial User is a
partnership or proprietorship, respectively; (c) A duly authorized representative of the individual designated above
if such representative is responsible for the overall operation of the
facilities from which the indirect discharge originates.
2-05. Biochemical Oxygen Demand (BOD). The quantity of oxygen utilized in the
biochemical oxidation of organic matter under standard laboratory procedure,
five (5) days at 20 degrees centigrade expressed in terms of weight and
concentration (milligrams per liter (mg/l)).
2-07. Categorical Standards. National Categorical Pretreatment Standards or Pretreatment Standard.
2-09. Non-Contract Cooling Water. Water discharged from any use such as
conditioning, cooling or refrigeration, or to which the only pollutant added
is heat.
2-10. Control Authority. The term "control authority" shall refer
to the "Approval Authority", defined hereinabove; or the Projects
and Programs Director if the City has an approved Pretreatment Program under
the provisions of 40 CFR, 403.11.
2-11. Direct Discharge. The discharge of treated or untreated wastewater
directly to the waters of the State of 2-12. Environmental Protection Agency, or EPA. The U.S. Environmental Protection Agency, or where appropriate the term may also be used as a designation for the Administrator or other duly authorized official of said agency.
2-14. Holding Tank Waste. Any waste from holding tanks such as vessels,
chemical toilets, campers, trailers, septic tanks, and vacuum-pump tank
trucks or hauled wastes.
2-15. Indirect Discharge. The discharge or the introduction of nondomestic
pollutants from any source regulated under section 307(b) or (c) of the Act,
(33 U.S.C. 1317), into the POTW (including holding tank waste discharged into
the system).
2-16. Interference. The term Interference means a discharge which,
alone or in conjunction with a discharge or discharges from other sources,
both: 1. Inhibits or disrupts the POTW, its treatment processes or
operations, or its sludge processes, use or disposal. 2. Therefore is a cause of a violation of any requirement of the POTW's
NPDES Permit, (including an increase in the magnitude or duration of a
violation), or of the prevention of sewage sludge use or disposal in
compliance with the following statutory provisions and regulations or permits
issued thereunder, (or more stringent State or local regulations):
Section 405 of the Clean Water Act, the Solid Waste Disposal Act (SWDA),
(including title II, more commonly referred to as the Resource Conservation
and Recovery Act (RCRA), and including State regulations contained in any
State sludge management plan prepared pursuant to subtitle D of the SWDA),
the Clean Air Act and the Toxic Substances Control Act and the Marine
Protection, Research and Sanctuaries Act.
2-17. National Categorical Pretreatment Standard or Pretreatment Standard.
Any regulation containing pollutant discharge limits promulgated by the EPA
in accordance with section 307(b) and (c) of the Act (33 U.S.C. 1347) to
include Pretreatment Standards under the Federal Pretreatment Regulations
including local limits, categorical standards, and the specific prohibitions
under 40 CFR Part 403.5(b), which apply to a specific category of Industrial
Users.
2-18. National Prohibitive Discharge Standard or Prohibitive Discharge
Standard. Any regulation developed under the authority of 307(b) or the Act
and 40 CFR, Section 403.5.
2-19. New Source. Any building, structure, facility, or installation from
which there is or may be a discharge of pollutants, the construction of which
commenced after the publication of proposed Pretreatment Standards under
Section 307(c) of the Act which will be applicable to such source if such
standards are thereafter promulgated in accordance with that section.
2-20. National Pollution Discharge Elimination System or NPDES Permit. A
permit issued pursuant to Section 402 of the Act (33 U.S.C. 1342).
2-21. Person, Any individual, partnership, co-partnership, firm, company,
corporation, association, joint stock company, trust, estate, governmental
entity or any other legal entity, or their legal representatives, agents or
assigns, The masculine gender shall include the feminine, the singular shall
include the plural where indicated by the context.
2-22. Pollution. The man-made or man-induced alteration of the chemical,
physical, biological and radiological integrity of water.
2-23. Pollutant. Any substance not normally associated with domestic
wastewater including but not limited to, dredged sludge, munitions, chemical
wastes, biological materials, radioactive materials, heat, wrecked or
discharged equipment, rock, sand, cellar dirt and industrial, municipal, and
agricultural waste discharged into water.
2-24. Pretreatment or Treatment. The reduction of the amount of pollutants,
the elimination of pollutants, or the alteration of the nature of pollutant
properties in wastewater a less harmful state prior to or in lieu of
discharging or otherwise introducing such pollutants into a POTW. The
reduction or alteration can be obtained by physical, chemical or biological
processes, or process changes by other means, except as prohibited by 40 CFR
Section 403.6(d). 2-25. Pretreatment Requirements. Any substantive or procedural requirement related to pretreatment, other than a National Pretreatment Standard imposed on an industrial user.
2-28. Projects & Programs Coordinator. The person designated by the City
to supervise the operation of the Industrial Pretreatment Program and assist
in the operation of the POTW, and who is charged with certain duties and
responsibilities by this article or his duly authorized
representatives.
2-29. Shall is mandatory; May is permissive.
2-30. Significant Industrial User:
2-31. Slug Discharge. A slug discharge is any discharge of a non-routine,
episodic nature, including but not limited to an accidental spill or a
non-customary batch discharge.
2-33. Standard Industrial Classification (SIC). A classification pursuant to
the Standard Industrial Classification Manual issued by the Executive Office
of the President, Office of Management and Budget, 1972. 2-34. Storm Water. Any flow occurring during or following any form of natural precipitation and resulting therefrom.
2-36. Toxic Pollutant. Any pollutant or combination of pollutants listed as
toxic in regulations promulgated by the Administrator of the Environmental
Protection Agency under provisions of CWA 307(a) or other Acts.
2-37. User. Any person who contributes causes or permits the contribution of
wastewater into the City's POTW. 2-38. Wastewater. The liquid and water-carried industrial or domestic
wastes from dwellings, commercial buildings, industrial facilities, and
institutions, together which may be present, whether treated or untreated, which
is contributed into or permitted to enter the POTW. 2-39. Water of the State. All streams, lakes, ponds, marshes, water courses,
waterways, wells, springs, reservoirs, aquifers, irrigation systems, drainage
systems and all other bodies or accumulations of water, surface or
underground, natural or artificial, public or private, which are contained
within, flow through, or border upon the State or any portion thereof.
2-42. F.O.G., Fats, Oils, Grease's. Is fat, oil, or grease in a
physical state such that it will separate by gravity from wastewater by
treatment in an approved pretreatment facility. A wastewater shall be
considered free of floatable fat if it is properly pretreated and the
wastewater does not interfere with the collection system. 2-43. Industrial Wastes means the solid, liquid or gaseous wastes
resulting from any industrial manufacturing, trade, or business processes, or
from the development, recovery or processing of natural resources. 2-44. "pH" means the logarithm of the reciprocal of the
hydrogen ion concentration. The concentration is the weight of hydrogen
ions, in grams, per liter of solution. Neutral water, for example, has
a Ph value of 7 (7) and a hydrogen ion concentration of ten (10) to the power
of minus seven (7). 2-45. Building drain means that part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to the building sewer, beginning (5) five feet, (1.5) one point five meters outside the inner face of the building wall.
BOD Biochemical Oxygen Demand CFR Code of Federal Regulations COD Chemical Oxygen Demand CWA Clean Water Act EPA Environmental Protection Agency FOG Fats, Oils, Greases mg/l Milligrams per liter NPDES National Pollutant Discharge Elimination System POTW Publicly Owned Treatment Works SIC Standard Industrial Classification SWDA Solid Waste Disposal Act, 42 U.S .C. 6901, et. seq.
USC
TSS Total
Suspended Solids
2-47. Pretreatment Standard (40 CFR 403.3(j)). The term National
Pretreatment Standard, Pretreatment Standard, or Standard means any
regulation containing pollutant discharge limits promulgated by the EPA in
accordance with section 307(b)(c) of the Act which applies to Industrial
User. This includes limits established pursuant to 40 CFR 403.5.
The City may, for administrative purposes, use such other abbreviations as
may be necessary or convenient in a Pretreatment Policy and Procedures
Manual.
Section 3. General Discharge Regulations.
3-01. Depositing Excrement Prohibited. It shall be unlawful for
any person to place, deposit, or permit to be deposited in any unsanitary
manner on public or private property within the City of
3-04. Construction Requirements.
(a) All discharges from floor drains, sinks and bathtubs (etc.) shall
have a gooseneck/trap installed within 90 days after date of official notice
to do so.
(b) Toilets Required. The owner(s) of all houses, buildings, or
property used for human occupancy, employment, recreation, or other purposes,
situated within the City and abutting on any street, alley, or right-of-way
in which there is now located or may in the future be located a public
sanitary or combined sewer of the City is hereby required at the owner(s)
expense to install suitable toilet facilities therein, and to connect such
facilities directly with the proper public sewer in accordance with the
provisions of this ordinance, within 90 days after date of official notice to
do so, provided that said public sewer is within 200 feet of the property
line.
3-05. Discharging Storm Water and Ground Waters into Sanitary Sewers
Prohibited. It shall be unlawful for any person(s) to discharge any
unpolluted waters such as storm water, surface water, ground water, roof
runoff, subsurface drainage, uncontaminated cooling water, or unpolluted
industrial process waters into any sanitary sewer. 3-06. Mass or Concentration Limitations, Prohibitions and
Amendments. The City may impose mass or concentration based limitations
on discharges required to meet local limit requirements or pretreatment
standards or requirements of City Ordinances, or cases where imposition of
limitations is deemed appropriated by the City. 3-07. Treatment of Materials Discharged to the Waste Water Treatment
Plant. If any waters or wastes are discharged, or are proposed to be
discharged to the public sewers, which contain the substances or possess the
characteristics in Section 4-01, and which in the judgment of the Special
Projects and Programs Coordinator, may have a deleterious effect upon the
waste water facilities, processes, equipment, or receiving waters, or which
otherwise create a hazard to life or constitute a public nuisance, and exceed
or violate the limitations of Section 4-01, the Special Projects and Programs
Coordinator may:
(a) Reject the wastes,
(b) Require pretreatment to an acceptable condition for discharge to
the public sewers,
(c) Require control over the quantities and rates of discharge, (d) Require payment to cover the added cost of handling and treating
the wastes not covered by existing taxes or sewer charges. If the City
permits the pretreatment or equalization of waste flows, the design and
installation of the plants and equipment shall be subject to the review and
approval of the City and subject to the requirements of all applicable codes,
ordinances, and laws; and/or (e) Seek enforcement and legal remedies contained in this
ordinance for violations of the limitations and provisions of this
ordinance.
3-08. Fats, Oils, Grease Trap/Interceptors and Sand Interceptors and
Sumps.
1. Fats, Oils, Grease Traps/Interceptors and Sand Interceptors shall be
provided when, in the opinion of the Special Projects and Programs
Coordinator, they are necessary for the proper handling of liquid wastes
containing floatable grease in excessive amounts as specified in Section 4.
4-01, or any flammable wastes, sand, or other harmful ingredients. 2. Except that such interceptors shall not be required for private
living quarters or dwelling units which do not produce material which is of
concern. 3. All interceptors shall be of a type and capacity approved for use by
the Special Projects and Programs Coordinator, and shall be located a
maintained as stated herein. 5. An interceptor is a device designed and installed so as to separate
and retain deleterious, hazardous, and undesirable matter from normal wastes
and permit normal sewage or liquid wastes to discharge into the disposal
terminal by gravity. 6. Interceptors and separators differ from fixture traps, and serve a
different purpose in that, in addition to preventing the back passage of
gases from the drainage system into a building, they also protect the
drainage and sewer systems from the introduction of substances which might be
harmful to those systems. Their function is to prevent liquid wastes
containing grease, flammables, sand, solids, acid or alkaline substances, and
other such ingredients from entering public or private sewers or other public
or private sewage disposal systems until the liquid wastes have been properly
treated. At the same time normal sewage or liquid wastes must be
permitted to discharge by gravity into the sewer systems. The three (3)
principal methods of treating these wastes are flotation, sedimentation,
sewage treatment systems. (a) Flotation - as gasoline, oil, grease and other volatile liquids are
lighter than water and are not readily soluble, they tend to float. (b) Sedimentation - Sand and other solids which are heavier than water
and also are not soluble, tend to settle out of the waste. (c) Neutralization - All chemical wastes and by products which would be
detrimental to the sewage collection and treatment system in concentrated
amounts and cannot be diluted. These must be neutralized and treated
before entering the sewer system.
7. Occasionally, waste water with high concentrations of grease or
emulsified grease, may require further treatment such as additional settling,
rock filtration and chemical or mechanical treatment to remove the grease.
8. If large amounts of grease, soaps and oils enter a sewer system
together the materials may coagulate, solidify and adhere to the side of the
piping, eventually blocking or partially blocking the pipe. Similarly,
solids such as sand, plaster, metal chips, and stones will cause stoppages or
partial stoppages if permitted to enter the system. Oils, kerosene,
gasoline, naphtha and paraffin's present the danger of fire and explosions in
the sewer piping. Acid, alkaline and other chemical wastes in
concentrated amounts could attack the piping. In addition, all of the
above are detrimental to proper functioning of sewage treatment plants, both
public and private. 9. Food Production Facilities Discharge Handling Procedures and
Information. (b) The Manifest System requires all identified businesses to have installed
or to install a Grease Trap/Interceptor unit and to clean their grease
traps/interceptors as needed to prevent the discharge of excess fats, oils,
grease and sediments into the City sewer collection system. (c) All food handling facilities and other miscellaneous oil and grease
producing facilities which discharge fats, oils and grease are requested to
voluntarily meet the trap/interceptor requirements herein. (d) Those facilities which refuse to voluntarily be part of the above
stated and described Manifest System shall be placed on the City Pretreatment
Permitting System. Refusal to install the requested minimum sized unit
will be considered as refusal to be part of the Manifest System. The
Pretreatment Permitting System has the following requirements:
(i) The user shall be required to apply for, receive and pay for a
permit which allows the user to discharge to the City sewage collection
system. The user shall pay all permitting fees as stated herein. (ii) The permitted Discharger shall be required to perform routine
monthly sampling and analysis of their discharge at their own cost.
(iii) The permitted Discharger shall be subject to all applicable
pretreatment program requirements and regulations for which enforcement
actions are required for violations. (iv) The permitted Discharger may be assessed surcharge fees for
discharge concentrations in excess of domestic source concentrations.
(e) Facilities placed on the Permitted System may, depending on test
results, still be required to install an approved type and size of grease trap/interceptor
unit and/or may be required to upgrade their current treatment device until
they are in compliance. (f) A facility may, at the discretion of the Special Projects &
Programs Coordinator, be given the opportunity to return to the Manifest System
after being placed on the Permit System for three months. (a) A facility which uses a self-contained, closed cooking system and
does not, in the opinion of the Special Projects & Programs Coordinator,
discharge a significant quantity of fats, oils or grease may, at the
discretion of the Special Projects & Programs Coordinator be determined
to be exempt from the requirements of this section. (b) The owner(s), operators of facilities will be required to routinely
clean traps and interceptors and routinely provide a copy of the billing or
other documentation for the cleaning to the Special Projects and Programs
Coordinator's office. The time frame for this cleaning shall be decided
by the following factors:
(i) The run period prior to cleaning may be initially determined by
checking the unit weekly for the grease blanket thickness at the top and the
solids depth in bottom. (ii) Check to see if the discharge line is close to being
plugged. The period of time from installation date to the first
required cleaning date will be the period of time the unit can routinely be
run before cleaning is required. Changes in facility operation may
require a change in the cleaning time requirements. The unit should be
cleaned at least once every 12-18 months or as required by the Special
Projects & Programs Coordinator upon inspection results of, if in the
opinion of the Special Projects & Programs Coordinator, the lack of
cleaning has adversely affected a City sewer line. (iii) Restaurants, hotels, cafeterias, schools, hospital, institutional
or any commercial building where food is produced and/or served in quantity,
which may produce grease in sufficient amounts to warrant the installation of
grease trap/interceptor units shall be required to install a grease
trap/interceptor unit. Diaries, slaughter houses, and commercial food
processing plants which have grease and fats as by-products and do require
interceptors shall install a grease trap/interceptor unit. (iv)
Those facilities which do not have an approved outside grease
trap/interceptor unit may be required by the Special Projects & Programs
Coordinator to install the minimum size 750 gallon unit. The owner of a
facility which is required to install a grease trap/interceptor unit shall
submit a schedule for unit installation to the Special Projects & Programs
Coordinator for approval. All new facilities shall be required to
install a unit prior to opening for business. (v) Grease trap/interceptor units shall be located an approximate
distance of twenty (20) feet from the last discharging fixture, and no more
than twenty (20) feet from the building foundation itself. The grease
trap/interceptor unit shall be readily and easily accessible for cleaning and
inspection. (vi) The owner(s) of the facility shall maintain records of the dates
of cleaning, and means of disposal which shall be subject to review by the
Special Projects & Programs Coordinator. (vii) Any removal and hauling of the collected materials not performed
by the owner(s) or its agent must be performed by currently licensed and
permitted waste disposal firms.
(c) When a grease trap/interceptor unit is required by the City, the
size, type and location of each interceptor or separator must meet with the
approval of the Special Projects & Programs Coordinator and the Building
Inspector's Office. Only those wastes requiring treatment or separation
shall be discharged into the device. Food preparation tables, mop
sinks, floor drains, sink drains, fountain drink drains, bar sink drains,
food locker and freezer drains must discharge to the treatment unit, etc...
The following requirements shall apply: (i) Grease traps/interceptors shall be maintained in efficient
operating condition by periodic removal of the accumulated grease.
Failure to do this defeats the function of the device. The collected
grease must not be introduced into the piping of public or private sewers. (ii) Installation of grease traps and interceptors in any food
preparation areas is prohibited by most Health Departments and this City. (iii) All designed and/or required food handling facilities shall
install a City approved trap/interceptor unit when requested or required to
do so by the Special Projects & Programs Coordinator. (iv) Under sink and floor type grease collection units shall not be
approved for new additions and/or use in the City of (v) The use of emulsifiers and enzymes is strictly forbidden in the
City of (vi) Bacteria additives are approved for use, in addition to outside
grease trap/interceptor units, but care should be taken to insure there is
allowable reaction time for treatment, and that conditions in the system meet
the use requirements, (i.e. temperature, holding time, etc..). (vii) No discharged liquid wastes shall have a temperature greater than
120 degrees at time of discharge.
(viii) Discharge flow or unit loading shall not exceed the treatment
capability of the grease trap/interceptor unit in use and approved by the
City. If discharge flows exceed the treatment capacity of the current
unit, a new larger unit shall be required to be installed. (ix) A copy of all grease trap/interceptor cleaning bills or manifests
shall be sent to the City of (x) The installation of an interceptor unit does not relieve the
facility of further compliance of City regulation or the imposition of
further pretreatment program requirements. (xi) In complying with this program, no trap/interceptor unit shall be
smaller than the requested 750 gallon capacity. Depending on the
discharge flow capability of the facility a larger unit may be required. (xii) The City may require a unit larger than that which is required by
discharge flow as determined by the National Plumbing Code sizing information
provided or as it deems necessary to insure compliance. (xiii) Trap/interceptor data must be kept on file by the owner(s). This data shall include: a record of the installation
date, the size of unit installed, the distance from the bottom of unit to the
inlet and outlet, the distance from the top of the unit to the discharge line
(outlet) and the size of the lines. (xiv) Inspections shall be randomly performed by the City during the
facility's operating hours. If the unit is placed in a high use area,
the services in this area may be interrupted while inspections are
conducted. If there is a problem or an immediate cleaning or an
emergency cleaning is needed, service may not resume until such cleaning or
other appropriate action is completed. (xv) Grease trap/interceptor location changes may be requested or
required if they are not readily accessible and there are continued
complaints of business operations being interrupted during inspections. (xvi) Some modifications and/or scheduling may be needed to comply with
these requirements. If the user/Discharger has a scheduled shut down
time for their facility and would like to install the unit at that time, or
would like approval to schedule an installation, a request must be made to
the Special Projects & Programs Coordinator. (xvii) The City may require such tests as may be necessary to determine
the grease collecting efficiency of the various types and kinds of grease
traps currently installed, and to establish the rate of flow or other
data. Such test requirements may be revised or modified from time to
time as may be deemed necessary by the City. A list of approved and
acceptable grease trap devices shall be kept on file in the Special Projects
& Programs Coordinator's office. Copies of these trap designs are
available upon request. (xviii) No grease trap/interceptors shall be installed which do not
comply in all respects with a type or model of each size approved and
accepted by the City. Whenever it shall come to the attention of the
City that a great trap/interceptor does not comply, the City shall require
that the facility cease its use and require prompt installation of a
treatment device which shall comply. (xix) Each facility for which a grease trap/interceptor is required
shall install an interceptor which shall serve only that establishment. (xx) An effluent sampling box on grease trap/interceptors may be
required by the City for units which do not meet the requested minimum sizing
requirement. (xxi) Abandoned grease trap/interceptors shall be pumped empty, removed
or filled in as required by the City pursuant to the requirements for
abandoned sewers and sewage disposal facilities in National Plumbing Codes. (xxii) Gasoline service stations, garages, automobile repair shops,
laundries, dry cleaning plants, machine shops and industries employing
chemical processing are sources of flammable and volatile wastes which must
be removed or treated. These shall be required to install common sump
system or a specific type of sump system depending on nature of discharge. (xxiii) Machine shops, major vehicle maintenance garages, some service
stations, hospitals, medical clinics, dental laboratories, and fish
preparation areas contribute solids such as metals, plaster, sand and fish
scales. These may be required to install specific type of treatment
system to remove, reduce or control the concentrations of concern in their
discharge. (xxiv) Hair and lint interceptors may be necessary in beauty salons, barber shops, surgical preparation rooms and veterinary.
(xxvi) Slaughter houses, packing plants, etc., because of the large
amounts of organic materials contained in their waste, slaughter houses and
packing plants processing fish, fowl and meat, dairies, hide and meat curing
plants, soap factories, tallow and fat rendering establishments and other
similar operations must discharge into grease trap/interceptor units of a
proven design for separation of those materials from the waste by flotation
before the waste enters the public or private sewage disposal system.
In view of the large quantities of waste involved, the City may require that
the system be designed by an engineer. Large interceptors may be
constructed of reinforced concrete, cast iron, or fabricated steel. (e) It shall be unlawful for any person to deposit or discharge, by any means, or to bypass by any means, into any City storm water drainage system, catch basin, public floor drain, publicly accessible trap/interceptor unit, site, point, or any other receptacle or device which is connected to any City collection system, private sewer which is connected to a City system, septic tank, toilet or cesspool which is hauled to the City; any ashes, cinders, solids rags, inflammables, poisonous or explosive liquids, gases, oils, grease or any other items or materials whatsoever which would, or could cause damage, harm, or plugging to the storm water drainage system, environment, ground water, public, City wastewater treatment plant or the City sewage collection system.
(ii) Sewage or other waste from a plumbing system which may be deleterious to surface or subsurface waters, shall not be discharged on/or into the ground or into any waterway unless it has first been rendered innocuous through subjection to an acceptable form of treatment, and has Wyoming Department of Environmental Quality approval.
(a) The intended location of the grease trap/interceptor unit must be
shown on the drawing or on an approved construction plan. In locating
the grease trap/interceptor unit, consideration should be given to the
information and requirements listed herein. (b) The interceptor should be located approximately twenty (20) feet
from the last discharging fixture, and not further than twenty (20) feet from
the building foundation. This permits earlier removal of the material
and reduces the dangers from possible inlet line stoppages, fires and
explosions. (c) Interceptors must be cleaned regularly, the cover and clean-outs
must be readily accessible for servicing. Interceptors shall not be considered
readily accessible if the use of ladders or the removal of bulky equipment is
required in order to service them. (d) Provisions must be made for the removal of solids from all
compartments.
(e) Wastes from sanitary facilities, such as water closets, must be
excluded from those discharged into the grease trap/interceptor unit.
Toilets, urinals and other similar fixtures shall not waste through the
grease trap/interceptor unit. Other types of facilities, as listed
herein, shall not be hooked into the grease trap/interceptor unit inlet line.
Most of these facilities require their own line or may be connected to the
discharge line of the unit at a point lower than or downstream far enough to
prevent back flow into the grease trap/interceptor unit.
(f) Grease trap/interceptors having water cooling jackets are
prohibited. (g) The installation of grease trap/interceptors in any food
preparation area is prohibited.
(i) Unless specifically required or permitted by the Special Projects
& Programs Coordinator, no food grinder or waste disposal shall be
connected to or discharged into any grease trap. (j) Each fixture discharging into a grease trap shall be individually
trapped and vented in an approved manner. (The term "fixture"
shall include each plumbing fixture, appliance, apparatus or other equipment
required to be connected to or discharged into a grease trap by any provision
of the National Plumbing Code.)
(k) Waste discharge from fixtures and equipment in establishments which
may contain grease, including but not limited to, scullery sinks, pot and pan
sinks, dish washing machines, soup kettles, soda fountain drains and floor
drains located in areas where grease-containing materials may exist, must
waste through the interceptor as required by the Special Projects &
Programs Coordinator. 12. Grease Trap/Interceptor Unit Design Requirements.
(a) Sufficient clean-outs outside both ends of the trap/interceptor
should be provided to permit cleaning of both the inlet and outlet
lines. Clean outs are also recommended at each major turn and probable
problem areas. (b) The cover must be a solid type with a tight fit, and designed to
withstand anticipated traffic and loads. The cover must be readily
accessible and removable. A vapor seal or sealed lid with bolt down
apparatus may be required at some sites to assist in preventing odors. (c) Wastes should enter the interceptor below normal liquid level to
keep the surface as still as possible. (d) All waste shall enter the interceptor through the inlet pipe only. (e) The effluent should be drawn from near center of the interceptor,
permitting as much floatable grease and solids as possible to be trapped. (g) Grease trap/interceptors shall be constructed of durable materials
satisfactory to the City, such as pre-cast or poured in place re-enforced
concrete, and shall have a full sized tight cover which can be easily and
readily removed. (h) Vent pipes are required and must be the same size piping as the
inlet and outlet piping. Vent pipes shall not be connected together
below the grease trap/interceptor unit top. Vent pipes shall be
installed in such a manner that no unit bypass may occur.
(i) Each grease trap shall have an approved water seal of not less than
two (2) inches in depth or the diameter of its outlet, whichever is greater. (j) No grease trap/interceptor required by the City of the National
Plumbing code shall be installed until the type, model, or size has been
subjected to, and has fully complied with tests acceptable to the City, and
its use has been subsequently approved by the Special Projects and Programs
Coordinator. Each grease trap/interceptor shall be so installed and
connected that it shall meet the approval of the City. (k) All grease trap/interceptor units shall be of a type and minimum
capacity as required or requested herein, and must be inspected before back filling.
Each unit must be approved for use by the Special Projects & Programs
Coordinator prior to being set in place. (l) A grease trap/interceptor design plan or drawing must be reviewed,
approved, stamped and signed by the Special Projects & Programs Coordinator
prior to going to the Building Inspectors Office. The grease
trap/interceptor plan or drawing must show the intended size of unit, piping
to and from the unit (from all sources), vent piping, the intended unit
placement site, all clean-outs, piping sizes and any changes to the current
piping. (m) Each unit installed shall be initially sized and plumbed according
to the National Plumbing Code and those requirements listed herein. (n) Because the grease trap/interceptor unit must be cleaned regularly
and the cost of cleaning is unending, it is recommended that a unit at least
1 to 2 sizes larger than that which the facility calculations require or the
minimum size requested by the City be installed. This will require fewer
cleanings throughout the year and lower cleaning costs. It will also
improve the operation of the unit. (o) The facility may be required to install an effluent sample port, a
connected sampling vault, or a manhole. The vault or sampling manhole
requirement shall be decided on a site and case basis due to flow and level
restrictions of installation, compliance concerns, or as specifically
required by the City of Rock Springs Special Projects & Programs
Coordinator or Building Inspector. These changes must be approved prior
to use. (p) Interceptors shall contain at a minimum two chambers as shown in
the attached drawings which the City has approved for use. Larger units,
(3000 gallons and above), should contain three to four chambers depending on
design. (q) Interceptors shall conform to the base designs available from the
Special Projects & Programs Coordinator. Some modifications to the
units or the approximate location may be required and allowed by the City
Special Projects & Programs Coordinator, and/or building inspectors, as
site or installation of these units require.
(r) In
complying with this program, no trap/interceptor unit shall be smaller than
750 gallon capacity; depending on the discharge flow capability of the
facility, a larger unit may be required. The City may require a unit
larger than that which is required by discharge flow or as determined by the
National Plumbing Code sizing information if it is deemed necessary to insure
compliance. (s) Interceptors shall be constructed in accordance with the designs
approved by the City and shall have a minimum of two compartments with fittings
designed for grease detention. (t) There shall be an adequate number of manholes to provide access for
cleaning all areas of an interceptor; a minimum of one (1) per ten (10) feet
of interceptor length. Manhole covers shall be gas tight in
construction having a minimum opening dimension of twenty (20) inches. (u) In areas where traffic may exist, the interceptor shall be designed
to have adequate reinforcement and cover. (a) Parameters - The parameters for sizing a grease interceptor are
hydraulic loading and grease storage capacity, for one or more fixtures. (b) Sizing Formula - The minimum size of the interceptor shall be determined by the following formula:
Number of Meals per Waste Retention Storage Peak hour(1) x Flow Rate(2) x Time(3) x Factor(4)
Interceptor size = (liquid capacity)
(1)
Meals Served at Peak (2) Waste Flow Rate a. With dishwashing machine 6 gallon Flow b. Without dishwashing machine 5 gallon flow c. Single service kitchen 2 gallon flow
d. Food waste disposer 1gallonflow (3) Retention Times a. Commercial kitchen waste 1. Dishwasher 2.4 hours b. Single service kitchen
1. Single
serving
1.5 hours (4) Storage Factors a. Fully equipped commercial kitchen 8 hour operation:1 16 hour operation:2 24 hour operation:3 b. Single service kitchen 1.5 hours
3-09. Maintenance of Pretreatment Facilities. Where pretreatment
or flow-equalizing facilities are provided or required for any waters or
wastes, they shall be maintained continuously in satisfactory and effective
operation by the owner(s) at his expense.
3-10. Industrial Waste Water Monitoring Facility Requirements.
When required by the Special Projects and Programs Coordinator, the owner(s)
of any property serviced by a building sewer carrying industrial wastes shall
install a suitable structure, control manhole or monitoring facility together
with such necessary meters and other appurtenances in the building sewer to
facilitate observation, sampling, and measurement of the wastes by the
owner(s) and/or City. Such structures, when required, shall be
constructed in accordance with plans approved by the Special Projects and
programs coordinator, shall be installed by the owner(s) at his expense, and
shall be maintained by him/her so as to be safe and accessible and in proper
operating conditions at all times.
3-11. Wastewater Analysis Standards. All analyses shall be
performed in accordance with procedures established by the EPA pursuant to
Section 304(h) of the Act and contained in 40 CFR Part 136 and amendments
thereto or with any other test procedures approved by the EPA. Sampling
shall be performed in accordance with the techniques approved by EPA.
Where 40 CFR Part 136 does not include sampling or analytical techniques for
the pollutants in question, or where EPA determines that the Part 136
sampling and analytical techniques are inappropriate for the pollutant in
question, sampling and analyses shall be performed using validated analytical
methods or any other sampling and analytical procedures, including procedures
suggested by the City or other parties, approved by EPA. Samples shall
be taken at the monitoring facility provided.
3-12. Special Agreements and Requirements. No statement contained
in this article shall be construed as preventing any special agreement or
arrangement between the City and any industrial user whereby an industrial
waste of unusual strength or character may be accepted by the City for
treatment, subject to payment therefore by the industrial user, except that
no agreement will relieve the industrial user of obligation under
pretreatment regulations 40 CFR Part 403 or any promulgated categorical
pretreatment standards.
3-13. Requirement for Pretreatment Facilities. Any property
owner, or sewer user violating the provisions of this section shall upon
notice by the City immediately install such pretreatment facilities through
separators, traps, and/or chemical, physical, or biochemical processes as
will make and assure that the sewage contributed from such property or
premises will meet the requirements of this Article.
3-14. Accidental Discharge Prohibitions. (b) Where necessary, facilities to prevent accidental discharge of
prohibited materials shall be provided and maintained at the Discharger's
cost and expense. (c) As required by the City, detailed plans showing facilities and
operating procedures to provide this protection shall be approved by the City
before construction of the facility. (d) As required by the City, each existing Discharger shall complete
its plan and submit same to the City within 30 days after formal adoption of
this ordinance. (e) No Discharger who discharges to the POTW after the aforesaid date
shall be permitted to introduce pollutants into the system until accidental
Discharge Protection Procedures have been approved by the City. (f) Review and approval of such plans and operating procedures by the
City shall not relieve the Discharger from the responsibility to modify its
facility as necessary to meet the requirements of this Ordinance. (g) Dischargers shall notify the City immediately followed by a written
report within five (5) days, upon the occurrence of a "slug load"
or accidental discharge of substances prohibited by this Ordinance. (h) The notification shall include location of discharge, date and time
thereof, type of waste, concentration and volume, and corrective actions.
(i) Any Discharger who discharges slug load of prohibited materials
shall be liable for any expense, loss or damage to the POTW, in addition to
the amount of any fines imposed on the City on account thereof under State or
Federal law. (j) Signs shall be permanently posted in conspicuous places on Discharger's premises, advising employees whom to call in the event of a slug load or accidental discharge. Employers shall instruct all employees who may cause or discover such a discharge with respect to emergency notification procedure.
3-15. Private Waste Water Disposal - Connection. Where a public
sanitary is not available under the provisions of Section 3, Subsection 3-04,
the building sewer shall be connected to a private waste water disposal
system complying with the provisions of this article.
(a) Plans and specifications prepared by a registered
Professional-Engineer licensed to practice in the State of (b) Written approval of the proposed system from the Wyoming Department
of Environmental Quality. (c) A permit and an inspection fee shall be paid to the City at the
time the application is filed.
3-17. Private Waste Water System Area Requirements. No permit
shall be issued for any private waste water disposal system employing
subsurface soil absorption facilities where the area of the lot is less than
40,000 square feet. No septic tank or cesspool shall be permitted to
discharge to any natural outlet.
3-18. Connection to Public Sewers. At such time as a public sewer
becomes available to a property served by a private waste water disposal
system, when the sewer line is within 200 feet of said property, a direct
connection shall be made to the public sewer within sixty (60) days in
compliance with this ordinance, and any septic tanks, cesspools,
leach-fields, and similar private waste water disposal facilities shall be
cleaned of sludge, covered with lime, and filled with suitable
material.
3-19. Connection Prohibited. It shall be unlawful for any
person(s) to make connections of roof downspouts, area way drains, RV holding
tank drains, or other sources of surface runoff or groundwater to a building
sewer or building drain which in turn is connected directly or indirectly to
a public sewer.
Section 4. General Discharge Prohibitions.
4-01. No user shall contribute or cause to be contributed, directly or
indirectly, any pollutant or wastewater which will interfere with the
operation or performance of the POTW. These general prohibitions apply to all
such Users of a POTW whether or not the User is subject to National
Categorical Pretreatment Standards or any other National, State or local
Pretreatment Standards or Requirements.
4-02. A User may not contribute the following substances to any POTW: |