§ 58-62. Definitions.

The following words, terms and phrases, when used in this article, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning. Terms not otherwise defined in this section shall be adopted in the latest edition of Standard Methods for Examination of Water and Wastewater, published by the American Water Works Association, and the Water Pollution Control Federation.

Act or the act means the Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC 1251 et seq.

Approval authority means the director of the state division of environmental management or his authorized representative.

Authorized representative of industrial user (IU) means:

(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; or

(3)

A duly authorized representative of the individual designated in subsection (1) or (2) of this definition if such representative is responsible for the overall operation of the facilities from which the indirect discharge originates.

Biochemical oxygen demand (BOD) means the quality of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure, five days at 20 degrees Celsius, expressed in terms of weight and concentration (milligrams per liter (mg/l)).

Building sewer means a sewer conveying wastewater from the premises of a user to the county's wastewater treatment system.

Categorical standards means national categorical pretreatment standards or pretreatment standard.

Color means the true color due to the substances in solution expressed in wavelengths of light.

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

Direct discharge means the discharge of treated or untreated wastewater directly to the waters of the state.

Director means the director of the county water department, or his authorized representative.

Domestic wastes means liquid wastes (i) from the noncommercial preparation, cooking and handling of food, or (ii) containing human excrement and similar matter from the sanitary conveniences of dwellings, commercial buildings, industrial facilities and institutions.

Environmental Protection Agency or EPA means 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 such agency.

Grab sample means a sample which is taken from a waste stream on a one-time basis with no regard to the flow in the waste stream and without consideration of time.

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

Indirect discharge means the discharge or the introduction of nondomestic pollutants from any source regulated under section 307(b) or (c) of the act (33 USC 1317), into a WWTP, including holding tank waste discharged into the system.

Industrial user means any facility which discharges industrial wastes. An industrial user will be classified according to the latest edition of the Standard Industrial Classification Manual, Office of Management and Budget, of the federal government of the United States.

Industrial waste means the wastes resulting from the processes employed in industrial, manufacturing, trade or business establishments, as distinct from domestic wastes.

Interference means the inhibition or disruption of WWTP treatment processes or operations which contribute to a violation of any requirement of the sanitary district's NPDES permit. The term includes prevention of sewage sludge use or disposal by a WWTP in accordance with section 405 of the act (33 USC 1345) or any criteria, guidelines or regulations developed pursuant to the Solid Waste Disposal Act (SWDA), the Clean Air Act, the Toxic Substance Control Act, or more stringent state criteria, including those contained in any state sludge management plan prepared pursuant to title IV of SWDA, applicable to the method of disposal or use employed by a WWTP.

National categorical pretreatment standard or pretreatment standard means any regulation containing pollutant discharge limits promulgated by the EPA in accordance with section 307(b) and (c) of the act (33 USC 1347) which applies to a specific category of industrial user.

National pollution discharge elimination system or NPDES permit means a permit issued pursuant to section 402 of the act (33 USC 1342).

National prohibitive discharge standard or prohibitive discharge standard means any regulation developed under the authority of section 307(b) of the act and 40 CFR 403.5.

New source means any source, the construction of which is commenced after the publication of proposed regulations prescribing a section 307(c) (33 USC 1317) categorical pretreatment standard which will be applicable to such source, if such standard is thereafter promulgated within 120 days of proposal in the Federal Register. Where the standard is promulgated later than 120 days after proposal, a new source means any source, the construction of which is commenced after the date of promulgation of the standard.

Person means any individual, partnership, copartnership, 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, and the singular shall include the plural where indicated by the context.

pH means the logarithm (base 10) of the reciprocal of the concentration of hydrogen ions expressed in grams per liter of solution.

Pollutant means any dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage 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.

Pollution means the manmade or man-induced alteration of the chemical, physical, biological and radiological integrity of water.

Pretreatment or treatment means the reduction of the amount of pollutants, the elimination of pollutants, the alteration of the nature of pollutants, or the alteration of the nature or pollutant properties in wastewater to a less harmful state prior to or in lieu of discharging or otherwise introducing such pollutants into a WWTP. The reduction or alteration can be obtained by physical, chemical or biological processes, or process change by other means, except as prohibited by 40 CFR 403.6(d).

Pretreatment requirements means any substantive or procedural requirement related to pretreatment, other than a national pretreatment standard imposed on an industrial user.

Sanitary sewer means a sewer intended to receive domestic sewage and industrial waste, except that of the type expressly prohibited by this article, without the admixture of surface water and stormwater.

Significant industrial user means any industrial user of the wastewater disposal system who:

(1)

Has a discharge flow of 25,000 gallons or more per average work day;

(2)

Has a flow greater than five percent of the flow in the wastewater treatment system;

(3)

Has in his wastes toxic pollutants as defined pursuant to section 307 of the act or of state statutes or rules; or

(4)

Is found by the state division of environmental management or the U.S. Environmental Protection Agency (EPA) to have significant impact, either singly or in combination with other contributing industries, on the wastewater treatment system, the quality of sludge, the system's effluent quality, or air emissions generated by the system.

Standard industrial classification (SIC) means a classification pursuant to the Standard Industrial Classification Manual issued by the Executive Office of the President, Office of Management and Budget, 1972.

Storm sewer or storm drain means a sewer which carries stormwater or surface water and drainage, but excludes sewage and industrial wastes.

Stormwater means any flow occurring during, or following, any form of natural precipitation and resulting therefrom.

Surcharge means a charge to a user of the public sewer system based on the pounds of a particular constituent in wastewater in excess of a specified level of concentration. It is levied in addition to a regular sewer service charge.

Surcharging of sanitary sewer means that the sewer is receiving more wastewater than its flowing full hydraulic capacity and that the amount of wastewater entering the sewer greater than its flowing full hydraulic capacity results in manhole water levels above the elevation of the top of the sewer pipe.

Suspended solids means solids that either float on the surface of, or in suspension in, water, sewage, or other liquids, and which are removable by laboratory filtering, expressed as milligrams per liter (mg/l).

Toxic pollutant means any pollutant or combination of pollutants listed as toxic in regulations promulgated by the administrator of the Environmental Protection Agency under provisions of the CWA section 307(a) or other acts.

Unpolluted water means water not containing any pollutants limited or prohibited by the effluent standards in effect, or water whose discharge will not cause any violation of receiving water quality standards.

User means any person who contributes, causes or permits the contribution of wastewater into the wastewater system, and who pays, or who is or would be legally responsible for the payment of, utility rates or charges made against his premises upon its connection to the water distribution system.

Wastewater means the liquid and water-carried industrial or domestic wastes from dwellings, commercial buildings, industrial facilities and institutions, together with any groundwater, surface water and stormwater that may be present, whether treated or untreated, which is contributed into or permitted to enter the district's wastewater treatment system.

Wastewater discharge permit shall have the meaning as set forth in division 3 of this article.

Waters of the state means 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.

(Ord. of 6-1-92(2), § 1(2))

Cross reference

Definitions and rules of construction generally, § 1-2.