No person shall discharge or cause to be discharged any storm water, surface water, ground water, roof runoff, subsurface drainage, including interior and exterior foundation drains, uncontaminated cooling water, unpolluted industrial process waters to any sanitary sewer. Except as hereinafter provided, no person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewer:

(a)   Any liquid or vapor having a temperature higher than 150 degrees F.

(b)   Any water or waste which may contain more than (100) parts per million by weight of fat, oil, or grease.

(c)   Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid or gas.

(d)   Any garbage that has not been properly shredded.

(e)   Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feather, tar, plastics, wood, paunch manure, or any other solid or viscous substance capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewage works.

(f)    Any waters or wastes having a PH lower than (5.5) or higher than (9.0), or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the sewage works.

(g)   Any waters or waste containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the sewage treatment plant.

(h)   Any waters or wastes containing suspended solids of such character and quantity that unusual attention or expense is required to handle such materials at the sewage treatment plant or that may degrade the quality of the treated sewage.

(i)    Any noxious or malodorous gas or substance capable of creating a public nuisance.

(Ord. 275, Sec. 2)

Storm water and all other unpolluted drainage shall be discharged to storm sewers, or to the natural outlet approved by the Director of Public Works. Industrial cooling water or unpolluted process waters may be discharged, upon approval of the Director of Public Works, to a storm sewer, or natural outlet. 

(Ord. 84, Sec. 502; Code 2011)

Grease, oil, and sand interceptors shall be provided when, in the opinion of the Director of Public Works, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand, and other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the Director of Public Works, and shall be located as to be readily and easily accessible for cleaning and inspection. Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature.

They shall be of substantial construction, watertight, and equipped with easily removable covers which when bolted in place shall be gas tight and watertight. Where installed, all grease, oil and sand interceptors shall be maintained by the owner, at his expense, in continuously efficient operation at all times.

(Ord. 84; Sec. 504:505; Code 2011)

The admission into the public sewers of any waters or wastes having:

(a)   a 5-day biochemical oxygen demand greater than 300 parts per million by weight; or,

(b)   containing more than 350 parts per million by weight of suspended solids; or,

(c)   containing any quantity of substances having the characteristics described in Section 501; or,

(d)   having an average daily flow greater than 2 percent of the average daily sewage flow of the City

shall be subject to the review and approval of the Director of Public Works.

Where necessary in the opinion of the Director of Public Works, the owner shall provide, at his expense, such preliminary treatment as may be necessary to;

(a)   reduce the biochemical oxygen demand to 300 parts per million and the suspended solids to 350 parts per million weight; or,

(b)   reduce objectionable characteristics or constituents to within the maximum limits provided for in Section 501; or,

(c)   control the quantities and rates of discharge of such waters or wastes.

Plans, specifications, and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Director of Public Works and of the Division of Sanitation, Kansas State Board of Health, and no construction of such facilities shall be commenced until said approvals are obtained in writing. Where preliminary treatment facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation, by the owner at his expense.

(Ord. 84, Sec. 506:507; Code 2011)

When required by the Director of Public Works, the owner of any property served by a building sewer carrying industrial wastes shall install a suitable control manhole in the building sewer to facilitate observation, sampling and measurement of the wastes. Such manhole, when required shall be accessible and safely located, and shall be constructed in accordance with plans approved by the Director of Public Works. The manhole shall be installed by the owner at his expense, and shall be maintained by him so as to be safe and accessible at all times.

(Ord. 84, Sec. 508; Code 2011)

All measurement, test, and analysis of the characteristics of waters and wastes to which reference is made in Sections 16-501 and 16-504 shall be determined in accordance with “Standard Methods for the Examination of Water and Sewage,” and shall be determined at the control manhole provided for in Section 16-505, or upon suitable samples taken at said control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected. 

(Ord. 84, Sec. 509)

No statement contained in this article shall be construed as preventing any special agreement or arrangement between the City and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the City for treatment, subject to payment therefore by the industrial concern.

(Ord. 84, Sec. 510)