No person shall discharge or cause to be discharged any of the following described substances, materials, waters and/or wastes into the designated sewers:
A. Public Sewers:
1. Any gasoline, benzene, naphtha, fuel oil, or other inflammable or explosive liquid, solid, or gas.
2. Any waters or wastes containing toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to deteriorate any public sewer, injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant, including, but not limited to, the following list indicating maximum concentrations allowable in the wastes as discharged to the public sewer:
Substance | Maximum Concentration (mg/l) |
Substance | Maximum Concentration (mg/l) |
Arsenic | 0.3 |
Cadmium | 1.0 |
Copper | 2.0 |
Cyanide | 0.2 |
Iron | 5.0 |
Lead | 1.0 |
Mercury | 0.002 |
Nickel | 3.0 |
Total chromium | 5.0 |
Zinc | 2.0 |
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 the public sewer or structures, equipment, and personnel of the water pollution control facilities, or operation thereof.
4. Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the water pollution control plant such as, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders.
B. Storm Sewers: No wastewaters except unpolluted waters shall be discharged to storm sewers. Stormwaters and all other unpolluted water shall be discharged into such sewers as are specifically designed and designated as storm sewers.
C. Sanitary Sewers: No stormwater, surface water, groundwater, roof runoff, subsurface drainage (footing tiles), cooling water, or unpolluted water shall be discharged to any sanitary sewer. Where a storm sewer or natural outlet is not available, such unpolluted water may be discharged to a sanitary sewer only after written approval of the director. No person constructing a sanitary sewer, building, or house connection shall leave same open, unsealed or incomplete in such a fashion to permit stormwater, surface water, or subsurface water to enter the sanitary sewer.
D. Illegal Connections:
1. Any connections made before or after the effective date hereof, which discharge prohibited materials, shall be considered illegal and shall be subject to immediate removal by the owner of the premises so connected and at such owner's expense.
2. Should the owner of such an illegally connected premises fail to remove the connection within sixty (60) days, the city shall cause the connection to be removed and the cost thereof shall be billed to the owner of the premises.
E. Accidental Discharges:
1. The accidental discharge of any prohibited liquid, gases or solid material into any public sewer or natural outlet, either directly or indirectly, shall be reported to the director immediately by the person responsible for the discharge.
2. Although no penalty, as such, will be levied as a result of such accidental discharge, it shall be understood that the person shall not be relieved of his responsibilities and shall be liable for any expense, loss or damage occasioned by the city by reason of such accidental discharge. (Ord. 94-94, 5-31-1994)