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City of Redwood City Page 45 Sewer System Management Plan, March 2018 Element VII VII-1.3 Legal Authority to Prohibit FOG Discharges The legal authority to prohibit improper discharges to the collection system is documented in Ordinance No. 2065, known as Sec. 27.10 – General Prohibitions of the Municipal Code of Redwood City, updated August 16, 1993. The following sections of this ordinance apply to the FOG control program: Sec. 27.10 General Prohibitions. A. No person shall discharge waste into the sewerage facilities which causes, threatens to cause or is capable of causing, either alone or by interaction with other substances: 1. A fire or explosion; 2. Obstruction of flow in, or injury to, the sewerage facilities, or any portion thereof; 3. Danger to life or safety of persons; 4. Conditions inhibiting or preventing the effective maintenance or operation of the sewerage facilities; 5. Strong or offensive odors, air pollution, or any noxious, toxic, or malodorous gas or substance, or gas producing substances; 6. Interference with the wastewater treatment process, or overloading of the sewerage facilities, or excessive collection or treatment costs, or use of a disproportionate share of the capacity of the sewerage facilities; 7. Interference with any wastewater reclamation process, which does or may operate in conjunction with the sewerage facilities, or overloading, or a breakdown of such reclamation process, or excessive reclamation costs, or any product of the treatment process which renders such reclamation process impracticable or not feasible under normal operating conditions; 8. A detrimental environmental impact, or a nuisance wherever located, or a condition unacceptable to any public agency having regulatory jurisdiction over operation of the sewerage facilities; 9. Discoloration, or any other adverse condition in the quality of the effluent from the sewerage facilities such that receiving water quality requirements established by any statute, rule, regulation, ordinance, or permit condition cannot be met by the City or the Authority; 10. Conditions at or near the sewerage facilities, or any portion thereof, which cause, or may cause, the City or Authority to be in violation of the requirements of law. 11. Pollutants introduced into the sewerage facilities which pass through or interfere with the operation or performance of the sewerage facilities. B. No person shall discharge hazardous waste into the sewerage facilities except pursuant to a permit issued by Authority's Manager upon a determination that such hazardous waste will not constitute or create a detrimental discharge. C. Except pursuant to an express applicable pretreatment standard, no user shall ever increase the use of process water or, in any other way, attempt to dilute a discharge of waste or wastewater as a partial or complete substitute for adequate treatment to achieve compliance with a pretreatment standard. The Authority may impose limitations upon mass emission rates on users which are using dilution to meet applicable pretreatment standards or in other cases where the imposition of mass limitations is appropriate. (Ord. No. 2065, § 2, 8-16-93). Sec. 27.13 Specific Wastes Prohibited. No person shall discharge, cause to be discharged, or permit to be discharged any wastewater into the sewerage facilities: A. The temperature of which is higher than one hundred fifty degrees (150º) Fahrenheit (65ºCentigrade); B. Containing more than three hundred (300) mg/l of oil or grease of animal or vegetable origin; C. Containing more than one hundred (100) mg/l of oil or grease of mineral or petroleum origin; D. Having a pH lower than six (6.0) or having a corrosive property capable of causing damage or hazard to structures or equipment of the sewerage facilities, or any portion thereof; 6.2.A. - Page 53