§ 13.14.060. Unlawful discharges

A. No person shall discharge or cause to be discharged any of the following described substances waters or wastes in any sewer system, sewage treatment or disposal facilities.

1. Any gasoline, benzene naphtha, fuel oil, or other explosive liquid, solid, gas, or used oil;

2. Any waters or wastes containing hazardous substances or toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with the functioning of any sewer system, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage system, including, but not limited to cyanide in excess of two milligrams per liter as CN in wastes;

3. Any waters or wastes having a pH lower than 5.5 or having any other corrosive property capable of causing damage or hazard to structures, equipment, and/or personnel associated with the sewer system;

4. Solid or viscous substances in such quantities or of such size so as to be capable of causing obstruction to the flow in sewage line or other interference with the proper operation of the sewer system, such as, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, garbage, whole blood, manure, hair and fleshing, entrails, paper products, and milk containers.

B. No person shall discharge or cause to be discharged an object or substance in any sewer system which might hinder the functioning and operation of the system, including, but not limited to, the following described substances, materials, waters or wastes if it appears likely, in the opinion of the wastewater board, that such wastes can harm either the sewer, sewer system, or equipment, have an adverse effect on the receiving waters, or otherwise endanger life, limb, public property, or constitute a nuisance. In determining the acceptability of wastes, the wastewater board will give consideration to such factors and the quantities of the subject wastes in relation to flows and velocities of the sewerage, materials and construction of the sewer, nature of the sewage treatment process, capacity of the sewage treatment system, degree of treatability of wastes in the sewer system, and other pertinent factors.

C. Prohibited substances are:

1. Any liquid or vapor having temperature higher than 150 degrees Fahrenheit;

2. Any water or waste containing fats, wax, grease, or oils, whether emulsified or not, in excess of 100 milligrams per liter or containing substances which may solidify or become viscous at temperatures between 32 degrees Fahrenheit and 150 degrees Fahrenheit;

3. Any garbage that has not been properly shredded;

4. Any waters or wastes containing strong acid iron, pickling wastes, or concentrated plating solutions whether neutralized or not.

(Ord. No. 94-10, § 13.4.060, 3-21-1994)