No person shall discharge or cause to be discharged any of the following described materials, substances, liquids, waters, or wastes into the public sewer system of the city:
A. Stormwater and cooling water. Any rainwater, stormwater, groundwater, street drainage, subsurface drainage, roof drainage, yard drainage, or water from yard fountains;
B. Dilution water. Any water added for the purpose of diluting wastes which would otherwise exceed applicable maximum concentration limitations;
C. Solids or viscous matter. Any solids or viscous substances of such size or in such quantity that they may cause obstruction of the flow in the sewer or be detrimental to proper wastewater treatment plant operations. These objectionable substances include but are not limited to asphalt, dead animals, offal, ashes, sand, rock, cement, mud, straw, industrial process shavings, metal, glass, rags, feathers, tar, plastic, wood, whole blood, paunch manure, bones, hair and fleshings, entrails, paper dishes, paper cups, milk containers, or other similar paper products, either whole or ground;
D. Flammable or explosive substances. Any gasoline, benzene, naphtha, solvent, fuel oil or any liquid, solid, or gas that would cause or tend to cause flammable or explosive conditions to result in the sewage works;
E. Hot substances. Any liquid, vapor, solid, gas, or thing having or developing a temperature of one hundred fifty degrees Fahrenheit or more;
F. Grease, oil and fats. Any liquid or other waste containing floatable and/or dispersible grease, oil or fat of animal, vegetable, or mineral origin in excess of one hundred parts per million by weight;
G. Corrosive substances. Any waters or wastes having pH lower than 6.0 or higher than 8.5, or having any other corrosive property capable of causing damage or injury to structures, equipment, or personnel;
H. Toxic substances. Any wastes including those listed below, containing toxic or poisonous solids, liquids, or gases in such quantities that, alone or in combination with other waste substances, may create a hazard for humans, animals or the local environment, interfere detrimentally with wastewater treatment processes, cause a public nuisance, or. cause any hazardous conditions to occur in the sewage works:
1. Antimony, | 11. Fatty acids, |
2. Arsenic, arsenicals, | 12. Fluorides, |
3. Barium beryllium, | 13. Formaldehydes, |
4. Boron, | 14. Lead, |
5. Bromine, chlorine, and iodine (total), | 15. Manganese, |
6. Cadmium, | 17. Nickel |
7. Chromium (total), | 18. Phenol and derivatives, |
8. Cobalt, | 19. Selenium, |
9. Copper | 20. Silver, |
10. Cyanides, | 21. Total identifiable chlorinated hydrocarbons |
I. Insecticides. Any liquids or wastes containing algicides, fungicides, antibiotics, insecticides, strong oxidizing agents, or strong reducing agents;
J. Suspended and dissolved solids. Any liquids or wastes containing suspended solids or dissolved matter of such character or quality that unusual attention or expense is required to handle, process, or treat such matter at the treatment plant;
K. Sulfides. Any wastes containing over 1.1 milligram/liter of dissolved sulfides;
L. Noxious odors. Any noxious or malodorous gas or substance capable of creating a public nuisance either by itself or by interaction with other substances;
M. Chlorine demand. Any wastes requiring an excessive quantity of chlorine or other chemical compound used for disinfection purposes;
N. Discoloration. Any waste producing excessive discoloration of wastewater or treatment plant effluent;
O. Radioactive wastes. Any radioactive wastes unless a permit has been issued by the city and the county health officer. No such permit shall be issued unless:
1. The person is authorized to use radioactive materials by the State Department of Health or other governmental agency empowered to regulate the use of radioactive materials, and
2. The waste is discharged in strict conformity with current California Radiation Control Regulations (California Administration Code, Title 17) and the Atomic Energy Commission regulations and recommendations for safe disposal, and
3. The person is in compliance with all rules and regulations of all other applicable regulatory agencies;
P. Miscellaneous wastes. Any liquid or wastes containing recognizable portions of the human anatomy;
Q. Untreatable wastes. Any liquid or waste containing substances which are not amenable to treatment or which cause the treatment plant effluent to fail to meet the discharge requirements established by the State Water Quality Control Board, or any other state or regulatory agency;
R. Slugs. Any unusual volume of flow or concentration of waste constituting a slug, where "slug" is defined as any discharge of liquid, water, sewage,. or industrial waste which in concentration of any given constituent or in quantity of flow exceeds for any period of duration longer than fifteen minutes more than five times the average twenty-four-hour concentration or flow during normal operation.
(Ord. 539 (part), 1988).