§ 24-523 Industrial waste; sewer surcharges.
AC § 24-523
a. Definitions. As used in this section, the following terms shall mean: 1. Commissioner. Commissioner of environmental protection.
2.Sewer system. The sewers, manholes, intercepting sewers, sewage pumping, treatment and disposal works, and any other plants, works or equipment and accessories within the city, which are used or useful in connection with the collection, treatment or disposal of sewage and waste, and which are owned, operated or maintained by the city as part of the public sewer system.
3.Sewage. The water-carried human or animal wastes from residences, buildings, industrial establishments, or other places, together with such ground water infiltration and surface water as may be present. The admixture with sewage as above defined by industrial waste or other wastes as hereafter defined, also shall be considered "sewage" within the meaning of this section.
4.Industrial waste. Any liquid, gaseous or solid substance or a combination thereof resulting from any process of industry, manufacturing, trade or business or from the development or recovery of any natural resources.
5.Other wastes. Garbage, refuse, decayed wood, sawdust, shavings, bark, sand, lime, cinders, ashes, and all other discarded matter not sewage or industrial waste.
6.B.O.D. (Denoting biochemical oxygen demand). The laboratory determination of the quantity of oxygen utilized in the biochemical oxidation of organic matter in a given time and at a specified temperature. It is expressed in parts per million (p.p.m) or (mg/liter) of oxygen used in a period of five days at twenty degrees C.
7.S.S. (Denoting suspended solids). The laboratory determination of the dry weight expressed in parts per million (p.p.m) or (mg/liter) of solids that either float on the surface or are in suspension in sewage and can be removed from sewage by filtration.
8.pH. The logarithm of the reciprocal of the hydrogen ion concentration. It indicates the intensity scale of acidity and alkalinity expressed in terms of pH scale running from 0. to 14. A pH value of 7.0 the midpoint of the scale, represents exact neutrality. Values above 7.0 indicate alkalinity and those below 7.0 acidity.
9.Chlorine demand. The amount of chlorine expressed in milligrams per liter which will complete the normal reactions with all chemicals and materials in the waste leaving an excess of 0.1 milligrams per liter after thirty minutes contact time at room temperature.
10.Normal Sewage. Sewage, industrial waste or other wastes having all of the following characteristics: B.O.D. 1,667 lbs. per million gallons(200 parts per million) or lessChlorine Demand 208 lbs. per million gallons(25 parts per million) or lessS.S. 1,667 lbs. per million gallons(200 parts per million) or lessEther soluble materials417 lbs. per million gallons(50 parts per million) or lesspH not less than 5.0 and not more than 9.5 11. Receivable Industrial Waste. Sewage, industrial waste or other wastes having all of the following characteristics: B.O.D. 2,500 lbs. per million gallons(300 parts per million) or lessChlorine Demand 208 lbs. per million gallons(25 parts per million) or lessS.S. 2,916 lbs. per million gallons(350 parts per million) or lessEther soluble materials417 lbs. per million gallons(50 parts per million) or lesspH not less than 5.0 and not more than 9.5; and such other characteristics as may be specified by the commissioner by rules and regulations promulgated pursuant to the provisions of subdivision e of this section.
12.Pollutants. Substances which may be present in sewage, industrial waste or other waste, whether gaseous, liquid or solid, the amounts of which, for the purposes of this section, shall be determined by the sum of the B.O.D. and the S.S. present therein.
13.Toxic substances. Any substance on the list of toxic pollutants or combination of pollutants published by the administrator of the federal environmental protection agency pursuant to section 307(a)(1) of the federal water pollution control act, commonly referred to as the clean water act, as amended, or any substance whether gaseous, liquid or solid, which when discharged to the sewer system may tend to (i) interfere with or inhibit any sewage treatment plant process or disposal operations, or (ii) be detrimental to the health of human beings or animals or to aquatic life.
14.Cost per pound of removing pollutants from sewage discharged into the sewer system. An amount certified annually by the commissioner which shall be determined by dividing the total costs of removing pollutants from the sewage discharged into the sewer system during the calendar year immediately preceding the date of certification (including the interest and amortization paid in such year upon indebtedness for capital improvements in connection therewith other than original plant construction or expansion) as computed by the commissioner, by the total number of pounds of pollutants removed in such year as computed by the commissioner. The amount so certified shall be filed in the department of public works on July first of each year and shall be used in computing the surcharges hereunder for the use of the sewer system during the one year period commencing on such July first.
15.Laboratory determination. The measurements, tests and analyses of the characteristics of waters and wastes in accordance with the methods contained in the latest edition at the time of any such measurement test or analysis, of "Standard Methods for Examination of Water and Sewage" a joint publication of the American public health association, the American waterworks association and the water pollution control federation or in accordance with any other method prescribed by the commissioner by rules and regulations promulgated pursuant to this section. b. Imposition and computation of sewer surcharge.
1.In addition to any other fees, charges or sewer rents provided by section 24-514 of the code or any other law, the owner of any parcel of real property connected with the sewer system, including but not limited to real property connected with the sewer system by means of a private sewer or drain emptying into the sewer system, shall pay a surcharge for the use of the sewer system for discharging any sewage, industrial waste or other waste, accepted for admission thereto in which the characteristics resulting from pollutants contained therein exceed the maximum values of such characteristics in receivable industrial waste as defined in subdivision a of this section and the rules and regulations of the commissioner adopted pursuant to this section.
