§ 58-41. System defined.

When used in this division, or rules and regulations adopted pursuant to this division, the following words, terms, and phrases shall have the meaning specified herein:

"Biochemical oxygen demand or B.O.D. ₅ means the quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five days at 20;deg; centigrade, expressed in terms of weight and concentration as milligrams per liter.

Chapter means Chapter 111 of the Parchment City Code.

Chemical oxygen demand or C.O.D. means the quantity of oxygen utilized in the chemical oxidation of organic matter, expressed in terms of milligrams per liter.

Compatible pollutant means those pollutants which the wastewater system is or may be designed to reduce or remove from wastewater in accordance with its NPDES permit.

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

Director means the city manager or his designee or authorized representative.

FWPCA means the Federal Water Pollution Control Act as amended, or as that act may be hereafter amended.

Garbage means solid wastes from the domestic or commercial preparation, cooking, dispensing, storage, handling, or sale of food.

Industrial or commercial wastes means the wastewater from the place of the user's business, trade, or profession.

Major contributory industry means an industrial user of the wastewater system that:

(a)

Has a flow of 50,000 gallons or more per average workday; or

(b)

Has a flow greater than five percent of the flow carried by the municipal system receiving the waste; or

(c)

Has in its waste a toxic pollutant in toxic amounts as defined in standards issued under Section 307 of the FWPCA, or by the director; or

(d)

Is found by the director or State of Michigan, in connection with the NPDES permit issued to the city, to have significant impact, either singly or in combination with other contributing industries, on the wastewater system or upon the quality of effluent from the wastewater system.

mg/l means milligrams per liter.

Natural outlet means any outlet into a watercourse, pond, ditch, lake, or body of surface or groundwater.

NPDES or National Pollutant Discharge Elimination System means the program for issuing, conditioning, and denying permits for the discharge of pollutants from point sources into the navigable waters, territorial seas, and contiguous zones of the United States pursuant to Section 402 of the FWPCA.

pH means the logarithm of the reciprocal of the weight of hydrogen ions in grams per liter of solution.

Pollutant means dredged spoil, 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, residential, and agricultural waste discharged into water.

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

Pretreatment means application of physical, chemical, and/or biological processes to reduce the amount of pollutants in or alteration of the nature of the pollutant properties in wastewater prior to discharging such wastewater into the wastewater system.

Pretreatment standards means all applicable rules and regulations implementing Section 307 of the FWPCA, as well as any nonconflicting state or local standards which may require more restrictive treatment of wastewater under the circumstances described in Section 307.

Properly shredded garbage means garbage that has been shredded to such a degree that no particle shall be larger than 1.27 centimeters in any dimension and all particles can be carried freely in the wastewater under the flow conditions normally prevailing in the wastewater system.

Storm drain or Storm sewer means any drain or sewer intended expressly for the conveyance of stormwater or other unpolluted water.

Suspended solids means the total suspended matter that floats on the surface of, or is suspended in, wastewater and that is removable by laboratory filtering.

User means any person who discharges or causes or permits the discharge of wastewater into the wastewater system and/or the owner or occupant of any property from which said discharge is made.

Wastewater means water or any liquid containing pollutants which is discharged or permitted to be discharged into the wastewater system.

Wastewater system means the complete wastewater collection, treatment, and disposal system of the city including all works, instrumentalities, or properties used or useful therein.

Watercourse means any natural channel or body of water in which a flow of water occurs either continuously or intermittently.

(Ord. No. 95, 10-1-79)