A. 
It is unlawful for any user to contribute or cause to be contributed, directly or indirectly, any pollutant or wastewater which will interfere with the operation of performance of the POTW. These general prohibitions apply to all such users of the POTW, whether or not the user is subject to National Categorical Pretreatment Standards or any other national, state, or local pretreatment standards or requirements.
B. 
It is unlawful for any user to contribute the following substances to the POTW:
1. 
Any liquids, solids or gases which by reason of their nature or quantity are, or may be, sufficient either alone or by interaction with other substances to cause fire or explosion or be injurious in any other way to the POTW or to the operation of the POTW. At no time shall two successive readings on an explosion hazard meter (or at any point in the system) be more than five percent nor any single reading over 10 percent of the lower explosive limit (LEL) of the meter. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides, sulfides, or any other wastestream with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test methods specified in 40 CFR 261.21;
2. 
Solid or viscous substances which may cause obstruction to the flow in a sewer or other interference with the operation of the POTW such as, but not limited to: grease, garbage, (except properly shredded garbage), animal guts or tissues, paunch manure, bones, hair, hides, fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, waste paper, wood, plastics, gas, tar, asphalt residues, residues from refining, or processing of fuel or lubricating oil, mud, or glass grinding or polishing wastes;
3. 
Any wastewater having a pH less than 5.0, or wastewater having any other corrosive property cable of causing damage or hazard to structures, equipment and/or personnel of the POTW;
4. 
Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction with other pollutants, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a toxic effect in the receiving waters of the POTW, or to exceed the limitation set forth in a Categorical Pretreatment Standard;
5. 
Any noxious or malodorous liquids, gases, or solids which either singly or by interaction with other wastes are sufficient to create a public nuisance or hazard to life or are sufficient to prevent entry into the sewers for maintenance and repair;
6. 
Any substance which may cause the POTW's effluent or any other product of the POTW such as residues, sludges, or scums, to be unsuitable for reclamation and reuse or to interfere with the reclamation process. In no case shall a substance discharged to the POTW cause the POTW to be in noncompliance with sludge use or disposal criteria, guidelines or regulations developed under Section 405 of the Act, the Clean Air Act, the Toxic Substances Control Act or state criteria applicable to the sludge management method being used;
7. 
Any substance which will cause the POTW to violate its NPDES permit and/or state disposal system permit or the receiving quality standards;
8. 
Any wastewater with objectionable color not removed in the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions;
9. 
Any wastewater having a temperature which will inhibit biological activity in the POTW treatment plant resulting in interference, but in no case wastewater with a temperature at the introduction into the POTW which exceeds 40 degrees Centigrade or 104 degrees Fahrenheit;
10. 
Any pollutants, including, oxygen demanding pollutants (BOD, etc.), released at a flow rate and/or pollutant concentration which will cause interference to the POTW. In no case shall a slug load have a flow rate or contain concentration or qualities of pollutants that exceed for any time period longer than 15 minutes more than five times the average 24-hour concentration, quantities, or flow during normal operation;
11. 
Any wastewater containing any radioactive wastes or isotopes of such halflife or concentration as may exceed limits established by the director in compliance with applicable state or federal regulations;
12. 
Any wastewater which causes a hazard to human life or creates a public nuisance;
13. 
Any other substance with the potential to create a hazardous condition in the POTW.
14. 
Any trucked or hauled wastes, except at discharge points designated by the director.
(Ord. 1718 § 1, 1983; Ord. 2280 § 2, 1989; Ord. 2707 § 2, 1993)
Upon the promulgation of the Federal Categorical Pretreatment Standards for a particular industrial subcategory, the Federal Standard, if more stringent than limitations imposed under this chapter for sources in that subcategory, shall immediately supersede the limitations imposed under this chapter. The National Categorical Standards found in 40 CFR Chapter 1, Subchapter N, Parts 405—471, are incorporated into this chapter and made part hereof. The director shall notify all affected users of the applicable reporting requirements under 40 CFR, Section 403.12.
(Ord. 1718 § 1, 1983; Ord. 2280 § 3, 1989; Ord. 2707 § 2, 1993)
Where the city's wastewater treatment system achieves consistent removal of pollutants limited by Federal Pretreatment Standards, the city may apply to the approval authority for modification for specific limits in the Federal Pretreatment Standards. "Consistent removal" shall mean reduction in the amount of a pollutant or alteration of the nature of the pollutant by the wastewater treatment system to a less toxic or harmless state in the effluent which is achieved by the system in 95 percent of the samples taken when measured according to the procedures set forth in Section 403.7 of Title 40 of the Code of Federal Regulations, Part 403, "General Pretreatment Regulations for Existing and New Sources of Pollution" promulgates pursuant to the Act. The city may then modify pollutant discharge limits in the Federal Pretreatment Standards of the requirements contained in 40 CFR, Part 403, Section 403.7 are fulfilled and prior approval from the approval authority is obtained.
(Ord. 1718 § 1, 1983; Ord. 4768 § 2, 2009)
A. 
Unless otherwise authorized under a wastewater contribution permit, no person or user shall discharge wastewater containing in excess of:
20.0 mg/l ammonia;
0.1 mg/l arsenic;
0.01 mg/l beryllium;
240 mg/1 BOD;
0.01 mg/l cadmium;
0.56 mg/l chromium;
0.13 mg/l copper;
0.01 mg/l cyanide;
5.5 mg/l fluoride;
50.0 mg/l hydrocarbon solvents (including total petroleum hydrocarbons as detected by method M8015);
18 mg/1 iron;
0.04 mg/l lead;
1.1 mg/1 manganese;
0.02 mg/l mercury;
0.31 mg/l nickel;
100.0 mg/l oil and grease;
500.0 mg/l phenol;
0.04 mg/l silver;
0.006 mg/l selenium;
250 mg/1 TSS;
2.0 mg/l TTO (total toxic organics, defined as the sum of all deleted volatile and semi-volatile organic compounds found in 40 CFR Part 136 Appendix A, base/neutrals and acids, purgeables, and organochlorine pesticides and PCBs, excluding phenol);
0.16 mg/l zinc.
B. 
Where, in the opinion of the director, and in conformance with the city's RWQCB approved local limits allocation program, users may discharge at levels above those specified in Section 14.26.140(A) if sufficient excess capacity exists at the POTW, and the discharge is covered under a wastewater contribution permit.
(Ord. 1718 § 1, 1983; Ord. 2278 § 1, 1989; Ord. 2360 § 4, 1990; Ord. 2707 § 2, 1993; Ord. 4912 § 2, 2011)
State requirements and limitation on discharges shall apply in any case where they are more stringent than federal requirements and limitations or those in this chapter.
(Ord. 1718 § 1, 1983)
The city reserves the right to amend this chapter in order to establish more stringent limitations or requirements on discharges to the wastewater disposal system if deemed necessary to comply with the objectives of this chapter.
(Ord. 1718 § 1, 1983)
No user shall increase the use of process water or in any way attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained in the Federal Categorical Pretreatment Standards, or in any other pollutant-specific limitation developed by the city or state.
(Ord. 1718 § 1, 1983)
A. 
Each user shall provide protection from accidental discharge of prohibited materials or other substances regulated by this chapter. Facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the owner or user's own cost and expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the city for review, and shall be approved by the city before construction of the facility. All existing users shall complete such a plan within one year of the effective date of this chapter.
No user who commences contribution to the POTW after July 1, 1983 shall be permitted to introduce pollutants into the system until accidental discharge procedures have been approved by the city. Review and approval of such plans and operating procedures shall not relieve the industrial user from the responsibility to modify the user's facility as necessary to meet the requirements of this chapter.
B. 
In the case of an accidental discharge, it is the responsibility of the user to immediately telephone and notify the POTW of the incident. The notification shall include location of discharge, type of waste, concentration and volume, and corrective actions.
1. 
Written Notice. Within five days following an accidental discharge the user shall submit to the director a detailed written report describing the cause of the discharge and the measures to be taken by the user to prevent similar future occurrences. Such notification shall not relieve the user of any expense, loss, damage, or other liability which may be incurred as a result of damage to the POTW, fish kills, or any other damage to person or property nor shall such notification relieve the user of any fines, civil penalties, or other liability which may be imposed by this article or other applicable law.
2. 
Notice to Employees. A notice shall be permanently posted on the user's bulletin board or other prominent place advising employees whom to call in the event of a dangerous discharge. Employers shall insure that all employees who may cause or suffer such a dangerous discharge to occur are advised of the emergency notification procedures.
(Ord. 1718 § 1, 1983)
Pursuant to 40 CFR 403.12(-), the user shall notify, in writing, the POTW, Cal-EPA, and EPA of any discharge into the POTW of a substance, which, if otherwise disposed of, would be a hazardous waste under 40 CFR 261.
(Ord. 2707 § 5, 1993)