§ 48-200. Certain wastes excluded from all sewers.

No person or property owner shall discharge or permit to be discharged, directly or indirectly, from any premises under his control into any public sewer, or storm drain any of the following:

(1)

Any substance or object likely to damage, destroy or cause an obstruction in any sewer, or appurtenance thereof, into which it may be discharged.

(2)

Any substance which may attack, damage or alter by either abrasion or chemical action the materials of which the sewer and its appurtenances are composed or built.

(3)

Sticks, stones of material size, coarse rubbish, rags, unground or unshredded garbage or refuse having particles more than one (1) inch in their longest dimension, portions of any animal carcass more than one (1) inch in longest dimension.

(4)

Any debris or substance which by depositing any considerable quantity of sediment, by coagulation, by congealing or by attaching itself to the sewer lining or to other substances being transported within the sewer interferes with the flow within or operation of the system.

(5)

Any gasoline, kerosene, alcohol, oil, tar, flammable or explosive gas or vapor or any substance which may generate or form any flammable, explosive or combustible substance when combined with air, water, or other substances commonly found in sewers.

(6)

Any liquid, or water, or water-carried waste at a temperature above one hundred fifty (150) degrees Fahrenheit, or substance which, upon coming into contact with water or sewage will generate heat in excess of one hundred fifty (150) degrees Fahrenheit.

(7)

Any waste or wastewater which is strongly acid, and which, when tested in the usual technical manner, has a pH less than 5.5 or which is strongly alkaline with a pH more than 9.5 (The term "pH" means the logarithm of the reciprocal of the weight of the hydrogen ions in grams per liter of solution).

(8)

Objectionable poisons, cyanides, or any substance likely to generate poisonous fumes that may interfere with, constitute a hazard to, or be dangerous to human beings or domestic animals.

(9)

Any water containing disinfectants, formaldehyde, toxic or poisonous substances in quantities sufficient to delay or interfere with sewage treatment, sludge digestion and biological processes used at the City sewage treatment plant.

(10)

Any considerable quantity of waste from an industrial or commercial process or processes containing quantities in excess of the following:

Unemulsified oil, grease or similar material	100 ppm
Cyanides	1.0 ppm
Copper, zinc, nickel, iron, lead, chromium, tin, silver, mercury and salts thereof	5.0 ppm
Hydrogen sulfide, sulfur dioxide, nitrous oxide or any malogen gas	10.0 ppm
Suspended solids	700 ppm
B.O.D.	500 ppm
Chlorine demand	15 ppm
(ppm represents parts per million by weight)

 

(Code 1961, § 16-10; Ord. No. 81, § 16-5(C)(4), (5), 10-4-1966)