[Adopted 6-13-1977 by Ord. No. 313]
It is the objective of the Mayor and Council of the City of Crisfield, Maryland, to permit the discharge of sanitary sewage and industrial wastes into the sewerage system of the City of Crisfield, provided that such discharge does not damage the sewerage system, unduly restrict the capacity of the system to receive wastewater, adversely affect the treatment process or in any other way constitute a detriment to the sewerage system, including the sewers, pumping facilities, the wastewater treatment plant or the receiving waters.
It is declared to be the purpose of this article to specify:
Those wastewaters, including industrial wastes, which will be accepted in the sewerage system of the City of Crisfield.
Types of wastes which will be prohibited from discharge to the sewerage system of the City of Crisfield.
Conditions, including pretreatment or screening, under which certain wastes will be accepted in the sewerage system of the City of Crisfield after review and upon approval of the Mayor and Council and the City Engineer.
Definitions. As used in this article, the following terms shall have the meanings indicated:
- BOD (DENOTING "BIOCHEMICAL OXYGEN DEMAND")
- The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20° C., expressed in milligrams per liter, as determined in accordance with the latest issue of the American Public Health Association Standard Methods for the Examination of Water and Wastewater.
- BUILDING DRAIN
- 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 10 feet outside the inner face of the building wall.
- BUILDING SEWER
- The extension from the building drain to the public sewer or other place of disposal.
- A lined or partially lined pit into which raw household wastewater is discharged and from which the liquid seeps into the surrounding soil.
- CHLORINE DEMAND
- The amount of chlorine which must be added to liquid waste to produce a residual chlorine content in the liquid waste.
- The governing body of the City of Crisfield or its duly appointed officers or representatives.
- The true color due to substances in solution expressed in color units on a platinum-cobalt scale.
- COMBINED SEWER
- A sewer receiving both surface runoff and sewage.
- COMPOSITE SAMPLE
- A sample of wastewater, consisting of a number of individual samples collected at uniform intervals over a given time span, collected and preserved in accordance with the latest issue of the American Public Health Association Standard Methods for the Examination of Water and Wastewater.
- DOMESTIC SEWAGE OR SANITARY SEWAGE
- The liquid wastes derived principally from residential, institutional, commercial and other nonindustrial sources.
- The Consultant Engineer retained by the city or the City Engineer of the City of Crisfield or their duly authorized representative.
- FLOATABLE GREASE
- Grease, fat, wax or oil in a physical state such that it will separate by gravity from wastewater by treatment in an approved facility. A wastewater shall be considered free of floatable grease if it is pretreated for floatable grease removal in a facility which is designed, constructed and operated as approved by the city.
- Solid wastes from the domestic and commercial preparation, cooking and dispensing of food and from the handling, storage and sale of produce.
- GREASE, FATS, WAX OR OILS
- Those substances, whether emulsified or not, which may solidify or become viscous at temperatures between 32° and 150° F. [0° and 65° C.].
- HEALTH DEPARTMENT
- Either the local or State of Maryland Department of Health and Mental Hygiene office having jurisdiction over local health and sewage disposal.
- INDUSTRIAL WASTES
- The liquid wastes from industrial manufacturing processes, trade or business as distinct from sanitary sewage.
- Any person, establishment, firm, company, association or group, whether public or private, engaged in a manufacturing or service enterprise which produces liquid wastes, which are excessive in biological strength, toxic, hazardous, nonbiodegradable or otherwise harmful to the sewage works or which would interfere with operation of the sewage works or require unreasonable operating attention or expense.
- MAJOR CONTRIBUTING INDUSTRY
- Any customer who contributes a flow of 50,000 gallons or more per day, has a flow greater than 5% of the flow carried by the municipal system receiving the waste, has in its waste a toxic pollutant in toxic amounts or has significant impact, either singly or in combination with other contributing industries, on the quality of the effluent.
- NATURAL OUTLET
- Any outlet into a watercourse, pond, ditch, lake or other body of surface or ground water.
- PARTS PER MILLION (PPM) OR MILLIGRAMS PER LITER (MG/L)
- The relative concentration of substance in a sample of waste, by weight, in terms of the weight of such substance per unit volume of the waste.
- PERSON, ESTABLISHMENT OR OWNER
- Any individual, firm, company, association, society, corporation or group, public or private.
- The logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.
- A building, either portable or fixed directly to a pit or vault, equipped with seating and used for excretion of bodily wastes.
- PROPERLY SHREDDED GARBAGE
- The wastes from the preparation, cooking and dispensing of food that have been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers.
- PUBLIC SEWER
- A sewer which is owned or controlled by the City of Crisfield or its duly authorized representative and in which all owners of abutting property have equal rights. It shall include that portion of the building sewer within the street right-of-way or public easement up to and including the clean-out, if any, adjacent to the curb, sidewalk or edge of paving.
- SANITARY SEWER
- A sewer which carries sewage and to which storm-, surface and ground waters are not intentionally admitted.
- The removal of solids from liquid wastes by straining through twenty-mesh screens or finer.
- SEPTIC TANK
- A settling tank in which settled sludge is in immediate contact with the wastewater flowing through the tank, and the organic solids are decomposed by anaerobic bacterial action.
- SEWAGE OR WASTEWATER
- A combination of the water-carried wastes from residences, business buildings, institutions and industrial establishments, together with such ground-, surface and storm waters as may be present.
- SEWAGE WORKS
- All facilities for collecting, transporting, pumping, treating and disposing of sewage and sludge.
- A pipe or conduit for carrying sewage.
- Solids separated from wastewater resulting from treatment of wastewater.
- STORM DRAIN (SOMETIMES TERMED "STORM SEWER")
- A sewer which carries storm- and surface waters and drainage, but excludes sewage and industrial wastes other than unpolluted cooling water.
- The Superintendent of Sewage Works of the City of Crisfield or his authorized deputy, agent or representative.
- SUSPENDED SOLIDS
- Solids that either float on the surface of or are in suspension in water, sewage or other liquids and which are removable by laboratory filtering, as determined in accordance with the latest issue of the American Public Health Association Standard Methods for the Examination of Water and Wastewater.
- WASTEWATER TREATMENT PLANT
- Any arrangement of devices and structures used for treating domestic and/or industrial liquid wastes.
- A channel in which a flow of water occurs, either continuously or intermittently.
Word usage. "Shall" is mandatory; "may" is permissive.
Connections to the public sewers shall be made only by the city or under direct supervision of the city.
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 Crisfield any human or animal excrement, garbage or other objectionable waste.
It shall be unlawful to discharge to any natural outlet within the City of Crisfield any sewage or other pollutants, except where suitable treatment has been provided in accordance with subsequent provisions of this article.
Except as provided in the City Plumbing Code, it shall be unlawful to erect or maintain any privy, septic tank, cesspool or other facility intended or used for disposal of sewage.
The owner of all houses, buildings or properties 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 his expense to install suitable toilet facilities therein and to connect such facilities directly with the proper public sewer in accordance with the provisions of the requirements of the City Plumbing Code.
No person shall make connection of roof downspouts, foundation drains, areaway drains or other sources of surface runoff or groundwater to a building drain which in turn is connected, directly or indirectly, to be a sanitary sewer. If any of the above are currently connected, they shall be disconnected at once. Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as storm sewers or storm drains or to a natural outlet approved to the Engineer. Industrial cooling water or unpolluted process waters may be discharged on approval by the responsible regulatory agency to a storm sewer or natural outlet.
No person, other than authorized city employees, shall uncover, make any connections with or opening into, alter or disturb any public sewer or appurtenance thereof.
Permits for connections to the public sewers shall be obtained from the Mayor and Council and shall be made on forms provided by the Mayor and Council. In all applications involving industrial wastes, as defined by this article, additional information, plans, specifications or other pertinent information will be required for review and approval by the Engineer.
This additional information shall include the wastewater constituents in detail and shall include but not be limited to the following:
Authorization to discharge industrial waste into the city's sewer system shall be valid for a period of two years. Application for renewal of authorization shall contain the required information above, plus any added by the city since the original application and permit. Any change in the industrial process or characteristics of the sewage shall render the permit invalid and require the customer to reapply in accordance with the above procedure.
All costs and expense incident to the installation and connection to the building sewer shall be borne by the owner. The owner shall indemnify the city from any loss or damage that may directly or indirectly be occasioned by the installation of the building sewer.
Old building sewers may be used in connection with new buildings only when they are found, on examination and test by proper city authority, to meet all requirements of the Plumbing Code.
The size, slope, alignment, materials of construction of a building sewer and the methods to be used in excavating, placing of the pipe, jointing, testing and backfilling the trench shall all conform to the requirements of the Building and Plumbing Code or other applicable rules and regulations of the city.
Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. In all buildings in which any building drain is too low to permit gravity flow to the public sewer, sanitary sewage carried by such building drain shall be lifted by an approved means and discharged to the building sewer at the owners entire cost.
The connection of the building sewer into the public sewer shall conform to the requirements of the Building and Plumbing Code or other applicable rules and regulations of the city.
Stormwater, surface water, groundwater, uncontaminated cooling water or unpolluted process water shall not be permitted to be discharged into sanitary sewers. In residential construction, floor drains may not be connected to the building sewer.
In general, no person shall discharge or cause to be discharged any liquid or solid wastes into the sanitary sewerage system that may result in physical damage to the sewage works, interference with operation or unreasonable maintenance attention or expense. Prohibited discharge shall generally include those containing substances which are not amenable to treatment or reduction by existing municipal wastewater treatment processes or are amenable to treatment only to such degree that the wastewater treatment plant effluent cannot meet the current requirements of appropriate regulatory agencies of the United States government or the State of Maryland.
Specifically, no person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
Any petroleum derivative, paint products or other flammable or explosive liquid, solid or gas.
Any liquid or vapor having a temperature higher than 150° F. [65° C.].
Any waters or wastes containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by an 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 wastewater treatment plant. The following substances are not permitted in concentration above those listed. By amendment to this article, restrictions may also be placed on other substances or the present concentration limits revised when it is shown that the presence of these substances or concentrations at a treatment plant are sufficient to adversely affect any portion of the treatment process.
Any liquid having pH values upon point of discharge into the public sewer lower than 5.5 or higher than 10.5, except that it shall in no way cause damage to sewer structures, equipment or the wastewater treatment process.
Solid or viscous substances in quantities or of such size capable of causing obstructions to the flow in sewers or other interference with the proper operation of the sewage works, such as but not limited to improperly shredded garbage, ashes, cinders, sand, mud, straw, shavings, metal, rubber, glass, rags, feathers, tar, plastics, wood, paint residues, whole blood, paunch manure, hair and fleshings, entrails, paper dishes or containers.
Any water or wastes which contain floatable grease, fats, wax or oils.
Any water or wastes containing emulsified oil, fats or grease exceeding 150 milligrams per liter, as determined from a twenty-four-hour composite sample. In addition, the concentration, as determined from any individual sample, shall not exceed 200 milligrams per liter. For the purpose of interpreting this requirement, at least 80% of all individual samples taken over any thirty-day period shall contain less than 200 milligrams per liter.
Any waters or wastes containing discharge of strong acid, iron-pickling wastes or concentrated plating solutions, whether neutralized or not.
Any waters or wastes containing phenols or other taste- or odor-producing substances in such concentrations exceeding the limits which may be established by higher regulatory agencies for discharge to the receiving waters.
Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by applicable state or federal regulations.
Any waters or wastes containing iron, manganese and similar objectionable or toxic substances or wastes exerting an excessive chlorine requirement to such degree that any such material received in the composite sewage at the wastewater treatment works exceeds the limits established by the city for such materials.
Any noxious or malodorous gas or substance which, singly or by interaction with other wastes, is capable of creating a public nuisance or hazard to life or of preventing entry into sewers for their maintenance and repair.
Materials which exert or cause unusual concentrations of inert suspended solids, such as but not limited to fuller's earth, lime slurrys and lime residues, or of dissolved solids, such as but not limited to sodium chloride and sodium sulfate.
Materials which exert or cause excessive discoloration, such as but not limited to dye wastes and vegetable tanning solutions.
Any wastewater that has a BOD greater than 400 milligrams per liter or contains more than 400 milligrams per liter of suspended solids, as determined from analysis of a twenty-four-hour composite sample. The city may permit the discharge of sewage from a given installation containing a higher concentration of BOD and suspended solids, subject to the levying of a surcharge over and above the normal rates for sewer service, such surcharge to be fixed by the city to achieve equitable recovery of capital and operating costs in proportion to the rate of flow and strength of the particular waste. This higher strength sewage shall in no case adversely affect the operation of the municipal sewage treatment plant.
Any industrial wastes that will not pass a twenty-mesh screen or equivalent.
Any unusual volume of flow that would materially affect the sewage works adversely.
Any substances, materials, waters or wastes that, after treatment of the composite sewage, cause violation of the requirements of the state, federal or other public agencies having jurisdiction over the quality of wastewater treatment plant discharge to the receiving waters.
If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which waters contain any of the substances or possess any of the characteristics enumerated in Subsections A, B and C of this section, the city may:
Require pretreatment to an acceptable condition for discharge to the public sewers;
Require control over the quantities and rates of discharge; and/or
If the city requires or permits the pretreatment or flow equalization of waste flows from any industry, the design and installation of the plants and equipment shall be subject to the review and approval of the Engineer and subject to the requirements of all applicable codes, ordinances, laws and regulations of the local, state and federal regulatory agencies.
Where pretreatment 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 and in such manner that a public nuisance or health hazard does not occur.
When required by the Engineer, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable control manhole in the building sewer to facilitate observation, sampling and measurement of the wastes. Such manhole, when required, shall be accessibly and safely located and shall be constructed in accordance with plans approved by the Engineer. The manhole shall be installed by the owner at his expense and shall be maintained by him so as to be safe and accessible to the city at all times.
All measurements, tests and analysis of the characteristics of waters and wastes to which reference is made in this article 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 manhole provided or upon suitable samples taken at said control manhole. 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.
All major contributing industries, as defined in § 94-12 of this article, shall file a weekly report on the constituents and characteristics of the wastewater they are discharging into the municipal system.
This report shall be compiled from tests taken and analyzed by a certified laboratory. The report shall include the following parameters:
The major contributing industry shall keep daily records of the flows into the municipal system and the condition and maintenance of monitoring equipment.
Sampling for the above reports shall be by a composite sample taken over the plant workday.
No statement contained in this article shall be construed as preventing any special agreement or arrangement between the city and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the city for treatment, in accordance with § 94-26C(15), subject to equitable payment therefor by the industrial concern.
When wastes of usual or unusual strength of character are accepted, charges to the contributor of the waste will be made by the city in accordance with the following:
The sewer service charge consists of the normal charge for wastewaters based upon the flow contributed to the sewerage system, plus a surcharge computed on the basis of the concentration of BOD and suspended solids above those established in § 94-26C(15).
The surcharge described above will be established by computing the pounds of BOD and suspended solids above 400 parts per million and multiplying each by the established city surcharge rate.
The volume of wastewater flow shall be determined as follows:
Whenever the establishment purchases all of its water from the city and discharges nearly all of the water as wastes only to the sewerage system, the volume of water purchased shall be used as a measure of the volume of waste discharged; or whenever the establishment purchases all of its water from the city and discharges substantially smaller part to the sewerage system, an allowance for water not put into the sewer shall be made in computing flow charges. The establishment shall provide, at its own expense, an approved metering facility in order to receive credit for the water not discharged to the sewerage system.
Whenever an establishment using a private water supply discharges wastes to the sewerage system, the flow will be based upon the metered use of water used in the establishment or that portion discharging wastes to the system or the metered flow discharged to the sewerage system in the same manner as indicated in Subsection C(1) above.
Whenever a mixture of city and privately supplied water is used, the appropriate measurement or combination of measurements described above shall be used.
The expense of all wastewater metering facilities shall be borne by the owner of the establishment contributing the wastewater, except for those normally provided by the City of Crisfield for measuring water consumption.
Any person who maliciously, willfully or negligently breaks, damages, destroys, uncovers, defaces or tampers with any structure, appurtenance or equipment which is a part of the sewerage system shall be subject to immediate arrest under charge of disorderly conduct. In addition, the Engineer and other duly authorized employees of the City may institute legal proceedings against such person to recover damages for any losses incurred.
The Engineer's other duly authorized employees of the City and agents of the Environmental Protection Agency and the State of Maryland bearing proper credentials and identification shall be permitted to enter all properties for the purpose of inspection, observation, measurement, sampling and testing in accordance with the provisions of this article, The Engineer and other duly authorized employees of the City shall have no authority to inquire into any processes, including shellfish preparation and packaging, metallurgical, chemical, oil, ceramic, foodstuffs, paper or other industries, beyond that point having a direct bearing on the kind and source of discharge to the public sewers, waterways or waste treatment facilities.
The Engineer and other duly authorized employees of the City bearing proper credentials and identification shall be permitted to enter all private properties through which the City holds a duly negotiated easement for the purpose of but not limited to inspection, observation, measurement, sampling, repair and maintenance of any portion of the sewerage system lying within said easement. All entry and subsequent work, if any, on said easement shall be done in full accordance with the terms of the duly negotiated easement pertaining to the private property involved.
While performing necessary work on private properties, the Engineer or duly authorized employees of the City shall observe all safety rules applicable to the premises established by the owner, and the owner shall be held harmless for injury or death to the City employees, and the City shall indemnify the company against loss or damage to its property by City employees and against liability claims and demands for personal injury or property damage asserted against the company and growing out of the gauging and sampling operation, except as such may be caused by negligence or failure of the company to maintain safe conditions as required in § 94-28.
[Amended 9-12-1979 by Ord. No. 333; 9-12-2001 by Ord. No. 537]
Any person found to be violating any provision of this article, except § 94-32, shall be guilty of an infraction and, on conviction thereof, shall be fined $250 for each offense.
Any person violating any provision of this article will become liable to the City for any expense, loss or damage occasioned the City by reasons of such violations.