§ 5-6-111. Prohibited discharges.

(a)

No user shall discharge or cause to be discharged into or the POTW any of the following substances, materials, waters or wastes:

(1)

any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas, which creates a fire or explosion hazard in the collection system or POTW, including but not limited to waste streams with a closed cup flashpoint of less than 140 degrees Fahrenheit (60 degrees Celsius) using methods specified in 40 C.F.R. 261.21;

(2)

any petroleum oil, non biodegradable cutting oil or products of mineral oil origin in amounts that will cause interference or pass through;

(3)

any water or waste containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any sewage treatment process, to constitute a hazard to humans or animals, to create a public nuisance or to create any hazard in the receiving waters of the collection system or the POTW, including but not limited to cyanides, chromium, copper, zinc, silver, lead, nickel, arsenic, mercury, cadmium and phenols;

(4)

any water or waste having a pH of less than 6.0 or more than 11.0 standard units or having any corrosive property capable of causing damage or hazard to structures, equipment or personnel of the city, the collection system or the POTW;

(5)

any solid or viscous substance capable of causing obstruction to the flow in the collection system or the POTW or interference with the proper operation of the collection system or the POTW, including but not limited to improperly shredded garbage, ashes, cinders, sand, mud, straw, wood or paunch manure;

(6)

any liquid or vapor having a temperature higher than 140 degrees Fahrenheit (60 degrees Celsius) or, at the point of intake to the POTW, having a temperature higher than 104 degrees Fahrenheit (40 degrees Celsius);

(7)

any waters or wastes containing fats, wax, grease or oils of animal or vegetable origin in concentrations greater than 100 mg/l as an instantaneous maximum or containing substances which may solidify or become viscous at temperatures between 32 degrees Fahrenheit and 140 degrees Fahrenheit;

(8)

any radioactive substance of such half-life or concentration as may exceed safe limits as established by federal or state regulations;

(9)

any odor- or color-producing substance exceeding concentrations which may be established by the authority for the purpose of meeting NPDES permit conditions;

(10)

any quantity of flow or concentration, or both, which constitutes a slug discharge, and any pollutant, including any conventional pollutant, released in a discharge at a flow rate or pollutant concentration, or both, which will cause interference with the POTW;

(11)

any substance from a septic tank, a truck or a portable vessel or device without prior written permission from the authority;

(12)

used motor oil in any amount;

(13)

any product containing used or otherwise contaminated antifreeze (ethylene glycol);

(14)

any medical waste, except as specifically authorized by the engineer in a wastewater discharge permit;

(15)

any hazardous waste, as defined in the Resource Conservation and Recovery Act, which is not covered by the domestic sewage exemption contained in 40 C.F.R. 261.4(a)(1)(ii);

(16)

any substance, material, water or waste which the engineer determines to be or to contain a pollutant which will pass through or cause interference with the operation or performance of the POTW or will contaminate the resulting sludge; and

(17)

any silver rich solutions from a photographic processing facility, unless such silver rich solution is managed by the photographic processing facility in accordance with the Silver CMP, prior to its introduction into the POTW.

(b)

No user shall make or cause to be made any of the following discharges:

(1)

any discharge which causes interference;

(2)

any discharge which constitutes a pass through;

(3)

any discharge without a permit required by this division;

(4)

any discharge which violates national categorical pretreatment standards;

(5)

any discharge which constitutes or results in a violation of any permit term or condition;

(6)

any discharge which violates local limit pretreatment standards established by the authority under section 5-6-113 and in accordance with 40 C.F.R. 403.5(c)(1); and

(7)

any discharge of groundwater, stormwater, surface water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water and unpolluted wastewater into the collection system or the POTW without written approval of the authority, except for those circumstances covered by sections 5-6-32 through 5-6-39.

(c)

Dilution of waste streams to meet the requirements of this section is prohibited.

(d)

Substances, materials, waters or wastes prohibited by this section shall not be processed or stored in such a manner that they could be discharged into the collection system or the POTW. (Ord. No. 4501, 10/13/07, Sec. 1)