§ 5-6.103. Definitions.

Unless the context specifically indicates otherwise, the following terms and phrases shall be defined herein. Words and phrases used in this chapter and not otherwise defined shall be interpreted, as defined in the Code of Federal Regulation, Standard Methods for the Analysis of Wastewater, or as established by State regulatory agencies.

(a)

The following terms shall have these meaning(s) in this chapter:

Act. The Federal Water Pollution Control Act, also known as the Clean Water Act;

Administrative order. An enforcement document which directs industrial users to implement corrective or remedial measures;

Administrator. The person appointed by the Director to manage the affairs of the City of Modesto, POTW Pretreatment Program;

Aliquot. A portion of a sample. Often an equally divided portion of a sample;

Apartment. A building or portion thereof containing three (3) or more dwelling units;

Authorized representative of industrial user. May be: (1) a principal executive officer of at least the level of vice-president, if the industrial user is a corporation; (2) a general partner or proprietor if the industrial user is a partnership or proprietorship, respectively. A duly authorized representative is responsible for the overall operation of the facilities from which the direct or indirect discharge originates;

Baseline monitoring report (BMR). Baseline monitoring report (BMR) is a required report for all industrial users subject to a categorical pretreatment standard. A BMR provides information that documents an industrial user's compliance status with all applicable pretreatment standards. If an industrial user is not in compliance with the BMR, a compliance schedule will be submitted with the BMR describing actions to achieve compliance at least ninety (90) days prior to commencement of discharge. The BMR at a minimum shall contain the following information:

(1)

Method of pretreatment to meet discharge and/or new source limit;

(2)

Identification information name and address of operator and owner;

(3)

List all environmental permits held by the facility;

(4)

Brief description of the nature, average rate of production, SIC of the operation, schematic process diagram showing points to discharge to the City of Modesto;

(5)

Average and maximum daily flow in gallons per day from each:

(6)

Regulated process stream;

(7)

Other streams as necessary to allow use of the combined wastestream formula;

(8)

Average and maximum concentration of pollutants from each regulated process based on the results from a one (1) representative sample taken immediately downstream from the pretreatment facility or regulated process if no pretreatment system exists. These results must be submitted to the City and shall be performed in accordance with samples and analysis as prescribed in 40 CFR part 136;

(9)

In lieu of actual monitoring data the City allows historical data provided the data is sufficient to determine the required level of pretreatment;

(10)

All data shall include a certification statement that the data submitted is representative of normal work cycles and expected pollutants;

(11)

Certification statement reviewed by the authorized representative that the user is meeting on a consistent basis pretreatment requirements based on current Best Management Practice or if additional operation and maintenance (O&M) and/or pretreatment is required;

(12)

If additional pretreatment and/or O&M is required the user shall submit a compliance schedule work plan to achieve compliance;

Batch process. A treatment process in which a tank or vessel is filled with wastewater (or solution), the wastewater (or solution) is treated to meet discharge standards and is then released into the sanitary system. A batch process is intermittent not continuous;

Best available technology (BAT). A level of technology that is based on the very best (state-of-the-art) control and treatment measures that have been developed or are capable of being developed for a particular industrial category;

Best practical technology (BPT). A level of technology represented by the average of the best existing wastewater treatment performance levels within an industrial category;

Biochemical oxygen demand (BOD). A test that measures the organic strength of wastewater. The test represents the quantity of oxygen required by sewage for biochemical oxidation in five (5) days at twenty (20) degrees Celsius in ppm;

Biodegradable. Organic matter that can be broken down by bacteria to more stable forms which will not create a nuisance or give off offensive odors;

Blowdown. The removal of accumulated solids in boilers to prevent plugging of boiler tubes and steam lines. In cooling towers, blowdown is used to reduce the amount of dissolved solids in the recirculated cooling water;

Building sewers. A privately owned pipeline conveying wastewater from the premises of a user to a sewer main;

Bypass. The intentional diversion of wastestreams from any portion of an industrial user's treatment facility;

Categorical industrial user. Are all industrial users subject to National Categorical Pretreatment Standards under 40 CFR 403.6 and 40 CFR Chapter I, Subchapter N;

Categorical industry. An industry which possesses industrial processes, defined in the Code of Federal Regulations as categorical processes;

Categorical limits. Industrial wastewater discharge pollutant effluent limits developed by the EPA that are applied to the effluent from any industry, in any category, anywhere in the United States, that discharge to a publicly owned treatment works (POTW). These are pollutant effluent limits based on the technology available to treat the wastestreams from the processes of the specific industrial category and normally are measured at the point of discharge from the regulated process. The pollutant limits are listed in the Code of Federal Regulations;

Categorical standards. Industrial waste discharge standards developed by EPA that are applied to the effluent from any industry, in any category, anywhere in the United States, that discharges to a POTW. These are standards based on the technology available to treat the wastestreams from the processes of the specific industrial category and normally are measured at the point of discharge from the regulated process. The standards are listed in the Code of Federal Regulations;

Cease and desist order. An order by the Director requiring immediate termination of an activity or situation which threatens to create or does create a significant safety hazard noncompliance with the provisions of this chapter, or noncompliance with State and/or Federal law. The order shall be enforceable in court;

Chemical oxygen demand (COD). A test that measures the inorganic and organic strength of wastewater. The test measures the amount of oxygen consumed from a chemical oxidant, in milligrams per liter (mg/l), under conditions outlined under the latest edition of Standard Methods for the Analysis of Wastewater;

City. The City of Modesto in the State of California;

Collection system. The combined pipes, conduits, manholes, ditches, rockwells, and other structures, usually underground, whose purpose is to convey wastewater or storm water;

Commercial user. Any user whose premises are used to provide a product or service for retail or wholesale. Commercial shall include, but shall not be limited to, the following: motel; hotel; boarding and rooming house; health care facility;

Compatible pollutants. Those pollutants such as biochemical oxygen demand (BOD), total suspended solids (TSS), and ammonia that are normally removed by the existing POTW treatment processes;

Compliance. The act of meeting specified conditions or requirements;

Compliance directive. An enforcement document which directs an industrial user to implement corrective or remedial measures;

Compliance schedule. An enforcement document which directs a user to create or imposes upon a user, a time schedule for meeting any provision of the sewer ordinance;

Consistent removal. The act of removing pollutants from wastewater in a manner which prevents the level of pollutants from exceeding any treatment standard at any time;

Control authority. The division of the City of Modesto, Public Works Department, which administers the POTW pretreatment program;

Cooling wastewater. The water discharged from any use to which the only pollutant added is heat or uses such as air conditioning, cooling or refrigeration;

Correction notice. A notice to a user or users orally or in writing, to correct its noncompliance with the sewer ordinance;

Corrosion. The gradual deterioration or destruction of a substance or a material by chemical action. Corrosive materials deteriorate the collection system;

Deleterious. Refers to something that can be or is hurtful, harmful, or injurious to health or the environment;

Direct discharge. The discharge of treated or untreated wastewater directly to the waters of the State of California. Direct discharges are regulated under the NPDES program;

Director. The Director of Utilities for the City or such other persons as may be designated by the Director of Utilities to perform the services or make the determinations permitted or required in this chapter to be made by the Director of Utilities for the City;

Discharge permit. Formal authorization by the Modesto Control Authority, stipulating the conditions under which wastewater effluent may be released into the sewage system;

Discharger. Any person that discharges or causes a direct or indirect discharge to a public sewer;

Dissolved solids. Solids that are completely dissolved in water and are not removable by laboratory filtration;

Domestic wastewater/sanitary sewage. The liquid and solid waterborne wastes derived from the ordinary living processes of humans of such character as to permit satisfactory disposal, without special pretreatment, into the public sewer or into a private wastewater disposal system;

Dry industry. Any user who does not discharge nondomestic wastewater and is a member of a category of users which the Director has determined to have a potential for impact upon the POTW;

Duplex. A building containing two (2) dwelling units;

Dwelling group. Two (2) or more buildings on any one (1) lot, containing three (3) or more dwelling units;

Dwelling unit. A suite of one (1) or more rooms which is occupied by or intended to be occupied by one (1) family;

Enforcement. A series of procedures and/or actions used to ensure compliance with legislation or associated rules, ordinances, or limitations;

Environmental Protection Agency (EPA). The Federal agency charged by law with carrying out and obtaining compliance with the Clean Water Act of 1977 and other Federal environmental laws and promulgating, interpreting and enforcing regulations implementing such statutes;

Flammable liquid. A liquid which by itself, or any component of it present in greater than one (1) percent concentration, has a flashpoint below one hundred (100) degrees Fahrenheit (thirty-eight (38) degrees Centigrade);

Flashpoint. The minimum temperature at which a liquid gives off vapor in sufficient concentration to ignite when exposed to any source of ignition;

Grab sample. A single sample of water collected at a particular time and place which represents the composition of the water only at that time and place;

Grease. Fats, oils, greases, or other ether-soluble matter, which shall include each of the following two (2) types:

(1)

Dispersed grease. Grease which is not floatable; and

(2)

Floatable grease. Grease which floats on the surface of quiescent sewage water or other liquid or which floats upon dilution of the liquid with water;

Hazardous material management plan. A document prepared by an industry which contains copies of material safety data sheets (MSDS) as well as additional information regarding the storage, handling and disposal of all chemicals used on site by the industry;

Hazardous waste. Any waste that is potentially damaging to environmental health and/or the collection system because of toxicity, ignitability, corrosivity, chemical reactivity or other reasons;

Holding tank waste. Any waste from holding tanks such as vessels, chemical toilets, campers, trailers, septic tanks, and vacuum-pump tank trucks;

House sewer line. The line connecting a user's property to the sewage system;

Indirect discharge. The discharge or the introduction of nondomestic pollutants from any regulated sources to the POTW, which may include certain holding tank wastes. These discharges are subject to EPA pretreatment regulations;

Industrial user. Any person who discharges or causes a discharge of industrial wastewater directly or indirectly to the City sewage system which requires a permit under the provisions of this chapter. This specifically includes any categorical users connected to the City sewage system whether or not they discharge process wastewater;

Industrial wastewater/industrial waste. All water-carried wastes and wastewater of the community, excluding domestic wastewater, and including all wastewater from any commercial or industrial production, manufacturing, processing, agricultural or other operation. These may also include wastes of human origin similar to domestic wastewater;

Industrial wastewater discharge. Liquid and/or solids contained within a liquid, other than sanitary sewage, and discharged into the sewage system by an industrial user;

Inspector. A person authorized by the Director to inspect any development discharging or anticipating discharge to the wastewater collection system and/or the POTW;

Interceptor. A device or trap to reduce the amount of grease, sand, or oil entering the sewage system;

Interference. A discharge that 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, including either the use or disposal of sludge, and

(2)

Is a cause of a violation of any requirement of the City 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 any applicable regulation;

Local limits. Pollutant discharge limits set by the local POTW based on the treatment plant's efficiency in treating specific pollutants;

Lot. A parcel of land consisting of one (1) or more contiguous lots of record in one (1) ownership;

Major industry. Any industrial user whose effluent discharge exceeds four million (4,000,000) gallons per month (MG/mo), or whose biochemical oxygen de- mand (BOD) is greater than or equal to twenty thousand (20,000) pounds per month, or total suspended solids (TSS) is greater than or equal to ten thousand (10,000) pounds per month;

Mass emission rate. The weight of material discharged to the sewage system during a given time interval. Unless otherwise specified, the mass emission rate shall mean pounds per day of a particular constituent or combination of constituents;

Material safety data sheets (MSDS). A document normally developed by a chemical manufacturer or formulator, which provides pertinent information about a hazardous substance or mixture. The MSDS is required to be available to employees and inspectors when a hazardous substance is used or found in the workplace;

Milestone. A time interval given in a compliance schedule specifying the date which an assigned task is to be completed leading to the completion of the objective(s) in the compliance schedule;

Minor industry. Any industry with an average effluent discharge which exceeds twenty-five thousand (25,000) gallons per day (GPD), or has a reasonable potential, in the opinion of the City, to adversely affect the POTW;

Mobile home park. Any area or tract of land where two (2) or more spaces are rented or leased or held for rent or lease to accommodate mobile homes;

Mobile home space. Each space in a mobile home park designed to be used for parking a mobile home on a temporary, semi-permanent or permanent basis;

Mobile home subdivision. Any area or tract of land improved to subdivision standards with mobile home lots;

National Pollutant Discharge Elimination System permit (NPDES permit). A permit issued pursuant to Section 402 of the Act (33 U.S.C. 1342), governing direct discharges to the waters of the State;

National 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) which applies to a specific category of industrial users. This term includes categorical limits established pursuant to Title 40 CFR Section 403.5, or under the authority of this chapter;

New source. An industrial user must meet the performance standards of a new source for any new 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, provided that:

(1)

The building, structure, facility or installation is constructed at a site at which no other source is located, or the building, structure, facility or installation totally replaces the process or production equipment that causes the discharge of pollutants at an existing source; or

(2)

The production or wastewater generating processes of the building, structure, facility or installation are substantially independent of an existing source at the same site. In determining whether these are substantially independent, factors such as the extent to which the new facility is integrated with the existing plant, and the extent to which the new facility is engaged in the same general type of activity as the existing source should be considered;

i.

Construction on a site at which an existing source is located results in a modification rather than a new source if the construction does not create a new building, structure, facility or installation but otherwise alters, replaces, or adds to existing process or production equipment;

ii.

Construction of a new source as defined under this paragraph has commenced if the owner or operator has:

1.

Begun, or caused to begin as part of a continuous onsite construction program:

2.

Any placement, assembly, or installation of facilities or equipment;

3.

Significant site preparation work including clearing, excavation, or removal of existing buildings, structures, or facilities which is necessary for the placement, assembly, or installation of new source facilities or equipment;

4.

Entered into a binding contractual obligation for the purchase of facilities or equipment which are intended to be used in its operation within a reasonable time. Options to purchase or contracts which can be terminated or modified without substantial loss, and contracts for feasibility, engineering, and design studies do not constitute a contractual obligation under this paragraph;

Nonbiodegradeable. Any substances that cannot readily be broken down by bacteria to simpler forms;

Noncompatible pollutants. Those pollutants that are not removed by the POTW treatment system. These pollutants may be toxic waste and may cause pass through or interference with the treatment system;

Noncontact cooling water. The water discharged from any use such as air conditioning, cooling or refrigeration, or to which the only pollutant added is heat;

Nonintegrated facility. Industrial wastewater sources at a single facility that generate wastewater from different categorical pretreatment processes, but do not combine the wastestreams prior to pretreatment or discharge to the sanitary sewer;

Nonsignificant industry. An industry that produces and discharges less than twenty-five thousand (25,000) gallons of wastewater per day and is not classified as a significant or categorical industry;

Notice of violation. A notice issued by the Director or Inspector to the industrial user, hand delivered or mailed, informing the industrial user that a violation has occurred;

Nuisance. Anything which is injurious to health or is indecent or offensive to the senses or an obstruction to the free use of property so as to interfere with the comfort or enjoyment of life or property or which affects at the same time an entire community or neighborhood or sewer collection system or POTW or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal;

Order to show cause hearing. A meeting with representatives of a user and the Director or his/her designee to discuss reasons for noncompliance and corrective actions. At this time, the user may be issued an administrative order and/or fine(s);

Pass through. A discharge from an industrial source that passes through the POTW to the waters of the State in concentrations which, alone or in conjunction with other discharges, cause an NPDES permit violation;

Permit. The authorization by the City to the POTW facilities to discharge under specified rules and conditions;

Permittee. A person who has received a permit to discharge wastewater pollutants into the City sewage system subject to the requirements and conditions established by the City;

Person. An individual, partnership, copartnership, firm, company, corporation, 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 context;

pH. Mathematically, pH is the logarithm (base 10) of the reciprocal of the hydrogen ion activity in a substance. The pH range is from zero (0) to fourteen (14) where zero (0) is the most acidic and fourteen (14) the most basic, and seven (7) is neutral;

Pollutant. Any substance which causes an impairment (reduction) of water quality to a degree that may have an adverse effect on any beneficial use of the water;

Pollutants include: any dredged soil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and industrial, municipal, and agricultural waste discharged into waters and onto the ground, or deposited where subsurface waters may become contaminated by leaching;

Pollution. The man-made or man-induced impairment (reduction) of chemical, physical, biological, and radiological integrity of water;

Pollution prevention permit. The authorization by the control authority to wet industries or dry industries to discharge under specified rules and conditions;

Premises. Any lot, piece or parcel of land, and building or other structure or any part of any building or structure used or useful for human habitation or gathering or carrying on any business, industry or occupation;

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 to a less harmful state prior to or in lieu of discharging or otherwise introducing such pollutant to 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);

Pretreatment facility. Any works or device for treatment, control, or flow limitation of sewage or industrial waste, prior to discharge into a public sewer;

Pretreatment requirements. Requirements for users, established by the City, State, or other regulatory agency for the insurance of compliance to pretreatment standards. Requirements may include, but are not limited to, the installation and maintenance of treatment equipment, metering facilities, and/or monitoring facilities;

Pretreatment standards. The maximum levels of pollutants allowed to be discharged under local, State, or Federal guidelines when implementing the best available technology to treat the process wastewater of the users;

Process wastewater. Any wastewater contaminated by human activities including, but not limited to, that originating from manufacturing, agriculture, processing, rinsing, washing or producing;

Public owned treatment works (POTW). A treatment works as defined by Section 212 of the Act (33 U.S.C. 1292) which is owned in this instance by the City. This definition includes any sewers that convey wastewater to the POTW treatment plant, but does not include pipes, sewers, or other conveyances not connected to the facility providing treatment. For the purposes of this chapter, "POTW" shall also include any sewers that convey wastewater from persons outside the City, who are, by contract or agreement users of the City treatment plant;

Receiving waters. Waters which are defined under 40 CFR 122 (NPDES system) as "Waters of the United States;"

Residential user. Any user whose premises contain a dwelling unit(s) intended for permanent occupancy. Residential shall include, but shall not be limited to, the following: single-family residential; multi-family residential; condominiums/townhouses; mobile homes; senior residential housing;

Restaurant. A place where food is processed and served to the public;

Sanitary sewage, see Domestic wastewater/Sanitary sewage;

Sanitary sewer. A pipe or conduit (sewer) intended to carry domestic wastewater from homes, businesses, and industries to the treatment works. Storm water runoff or unpolluted water should be collected and transported in a separate system of pipes or conduits (storm sewer) to natural watercourses;

Sewage. Industrial waste or sanitary sewage, or both;

Sewage system. The facility designated and used for the collection, treatment, and disposal of industrial wastes and sanitary sewage;

Sewer bond redemption charge. A charge established to compensate the City for having provided collection and treatment facilities before being able to collect revenue from the benefited properties;

Sewer District. The Modesto Municipal Sewer District No. 1 established by the City Council by Resolution No. 66-543 effective August 16, 1966, encompassing the City of Modesto and portions of contiguous unincorporated areas, the legal description and boundaries of which have been recorded in the office of the Recorder of the County of Stanislaus, including areas heretofore or hereafter annexed thereto;

Sewer lateral/sewer main. A pipeline which collects sewage from one (1) or more individual users and transports it to subtrunk and trunk sewers;

Sewer main service area. An area that is one hundred sixty (160) acres or less which is served by the extension of sewer mains. The sewer mains are connected to either a subtrunk sewer or a trunk sewer;

Sewer service. The services and facilities for the collection, treatment, and disposal of industrial wastes and sanitary sewage;

Sewer service charge. A charge established to pay the cost of operation, maintenance, and debt service of the sewage system;

Shall is mandatory; may is permissive;

Show cause order. An order for an industrial user to appear before the Director or the Director's designee to explain any noncompliance and why specified enforcement actions should not be taken;

Significant industrial user (SIU) includes:

(1)

All categorical users, and

(2)

Any noncategorical users that:

(i)

Discharge twenty-five thousand (25,000) gallons or more per day of process wastewater (excluding domestic wastewater),

(ii)

Contributes a process wastestream which makes up five (5) percent or more of the average dry weather hydraulic or organic (BOD, SS) capacity of the POTW; or

(iii)

Has a reasonable potential, in the opinion of the City, to adversely affect the POTW;

Significant noncompliance (SNC) includes: SIUs that have a reasonable potential, in the opinion of the City, to adversely affect the POTW can be listed as significant noncompliance (SNC) in addition SIUs can be listed as SNC if any one (1) of the follow conditions occurred:

(1)

Chronic violations where sixty-six (66) percent or more of the measurements exceed the same daily maximum limit or the same average limit in a six (6) month period;

(2)

Violations where thirty-three (33) percent or more of the measurements exceed the same daily maximum limit or the same average limit by more than the technical review criteria (TRC) in a six (6) month period;

(3)

Failure to provide reports for compliance schedules, self-monitoring data, or categorical standards (BMR, ninety (90) day compliance reports, and periodic reports) within forty-five (45) days from the due date;

(4)

Any discharge that has caused imminent endangerment of human health/welfare or to the environment and has resulted in the POTW's exercise of its emergency authority to halt or prevent such a discharge;

(5)

Any other violation(s) of an effluent limit (average or daily maximum) that the City believes has caused, alone or in combination with other discharges, interference with POTW (e.g., slug loads) or pass through, or endangerment of health of the POTW personnel or the public;

(6)

Violations of compliance schedule milestones, contained in a local control mechanism or enforcement order, for starting construction, completing construction, and attaining final compliance by delay of ninety (90) days or more after any compliance schedule date;

(7)

Any other violations or violations that the Director considers to be significant violation. A violation which remains uncorrected for forty-five (45) days after notification of noncompliance; is part of a pattern of noncompliance over a twelve (12) month period; involves a failure to accurately report noncompliance; or resulted in the POTW exercising its emergency authority under Section 403.8(f)(1)(vi)(B) date;

Significant violation. A violation which remains uncorrected for forty-five (45) days after notification of noncompliance; is part of a pattern of noncompliance over a twelve (12) month period; involves a failure to accurately report noncompliance; or resulted in the POTW exercising its emergency authority under Section 403.8(f)(1)(vi)(B);

Slug load/slug discharge. Any discharge of water, sewage, or industrial waste which in concentration of any given constitute or in quantity of flow exceeds for any period of duration longer than fifteen (15) minutes more than five (5) times the average twenty-four (24) hour concentration or flow rate during normal operation;

Spill containment. A government agency approved protection system installed by the permittee to prohibit the discharge of noncompatible pollutants to the sewer;

Standard industrial classification. A classification pursuant to the Standard Industrial Classification Manual issued by the Executive Office of the President, Office of Management and Budget, 1987, as amended and supplemented;

Standard methods. Procedures described in the current edition of Standard Methods for the Examination of Water and Wastewater, as published by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation;

State. The State of California;

Storm water. Water resulting from any form of natural precipitation;

Subtrunk sewer. A pipeline designed to transport sewage from the subtrunk sewer service area to the trunk sewer;

Subtrunk sewer extension charge. A charge established to equalize the costs of connecting the in-tract facilities and/or oversize facilities of a particular subdivision or trunk sewers so that developments close to the chosen trunk sewer alignments do not receive unfair advantage over those located further away;

Subtrunk sewer service area. An area that is one hundred sixty (160) acres or larger that is not adjacent to a trunk sewer that is served by a subtrunk sewer;

Technical review criteria (TRC). An EPA term that defines the magnitude of a limits violation. The TRC is calculated by multiplying the daily average maximum limit by the applicable TRC value (TRC=1.4 for BOD, TSS, fats, oils and grease, and 1.2 for all other pollutants except pH);

Total suspended solids (TSS). Any insoluble material contained as a component of wastewater and capable of separation from the liquid portion of the wastewater by the appropriate filtering procedures and expressed in terms of milligrams per liter;

Total toxic organics (TTO). The sum of the concentrations of the toxic organic compounds, listed in the Code of Federal Regulations, present in the industrial user's process wastewater discharge;

Toxic pollutant. Any pollutant or combination of pollutants listed as toxic in regulations promulgated by the Administrator of the EPA under the provisions of the Act Section 307(a) or other Acts;

Trunk sewer. A pipeline which transports sewage from sewer main service areas and subtrunk sewer service areas to the water quality control plant;

User. Any person responsible for payment of sewer service charges for premises or any person who discharges, causes or allows the discharge of wastewater directly or indirectly to the sewage system. This includes residential, commercial, and industrial users as defined herein. This term specifically includes any categorical users connected to the City sewerage system whether or not they discharge process wastewater;

Waste hauler. Any person carrying on or engaging in vehicular transport of wastewater as part of, or incidental to, any business for the purpose of discharging said wastewater into the POTW's system;

Waste manifest. The receipt which is retained by the generator of hazardous wastes as required by the State and/or the United States Government pursuant to RCRA, or the California Hazardous Materials Act, or that receipt which is retained by the generator for recyclable wastes or liquid nonhazardous wastes as required by the POTW;

Wastewater. The liquid and water-carried industrial or domestic wastes from dwellings, commercial buildings, industrial facilities, and institutions, whether treated or untreated, which is contributed into or permitted to enter the City's facilities;

Wastewater discharge permit. A control mechanism issued to an industrial user, or any person discharging to the sewage system that the Director determines needs a permit, to regulate its discharge of toxic, organic, or hydraulic loading to the wastewater collection, conveyance, and treatment system;

Water quality control plant. The plant owned by the City and designed for the treatment and disposal of sewage, including a remote oxidation ponding site;

Water quality requirements. Requirements for City's treatment plant effluent, or for receiving waters, established by law, or by State or Federal regulatory agencies, for the protection of receiving water quality;

Waters of the State. All streams, lakes, ponds, marshes, watercourses, 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;

Wet industry. Any user which is not a significant industrial user (SIU) and has a nondomestic wastewater discharge.

(Added by Ord. 3137-C.S., § 1, and Ord. 3365-C.S., § 3, effective 12-9-04)

(Ord. 3649-C.S., § 1, effective 7-14-16; Ord. No. 3680-C.S., § 1, effective 1-4-2018)