Redwood City Municipal Code § 27.13 Specific Wastes Prohibited

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)

No person shall discharge, cause to be discharged, or permit to be discharged, either directly or indirectly into the sewerage facilities, waste or wastewater from any of the following sources unless a permit therefor is issued by the City's Director subject to the concurrence of Authority's Manager:

A. Any stormwater, groundwater, rainwater, street drainage, sub-surface drainage or yard drainage;

B. Any unpolluted water, including, but not limited to, cooling water, process water or blow-down water from cooling towers or evaporative coolers;

C. Waste from garbage grinders, provided, that wastes generated in preparation of food normally consumed on the premises may be so discharged, provided, further, that such grinders shall be of such design and capacity to shred waste used therein such that all waste particles shall be carried freely under normal flow conditions into and through the sewerage facilities;

D. Any wastes or wastewater, or any object, material, or other substance directly into a manhole or other opening into the sewerage facilities other than wastes or wastewater through an approved building Sewer;

E. Any holding tank waste, provided, that such waste may be placed into facilities designed to receive such wastes and approved by the City's Director;

F. Any radioactive waste, provided, that persons authorized to use radioactive materials by the State Department of Health or other governmental agency with regulatory jurisdiction over the use of radioactive materials may discharge, cause to be discharged, or permit to be discharged such wastes, provided that such wastes are discharged in strict conformance with current California Radiation Control Regulations (California Code of Regs title XVII, ch. 5, sub. ch. 4, group 3, art. 5), and Federal regulations and recommendations for safe disposal of such wastes, and, provided further, that the person so acting does so in compliance with all applicable rules and regulations of all other regulatory agencies having jurisdiction over the matter.

(Ord. No. 2065, § 2, 8-16-93)

Except pursuant to a permit issued under Section 27.14, no person shall discharge, cause to be discharged or permit to be discharged any wastewater into the sewerage facilities containing any of the following wastewater constituents in excess of the maximum allowable amounts respectively hereinafter established therefor:

(Ord. No. 2065, § 2, 8-16-93)

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 that one hundred fifty degrees (150°) Fahrenheit (65° Centigrade);

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;

E. Containing any sand, grit, straw, metal, glass, rags, feathers, paper, tar, plastic, wood, leaves, garden clippings, manure, dead animals, offal or any other solid or viscous substance capable of causing obstruction to the flow in the sewerage facilities, or which in any way interferes with the proper operation of the sewerage facilities;

F. Containing any pollutant not otherwise specifically prohibited in these regulations, in sufficient quantities to constitute a hazard to humans or animals, or to create a hazard to the sewerage facilities, or to injure or interfere with the operation thereof;

G. Comprised of any waste containing suspended solids, not otherwise specifically prohibited under the provisions of these regulations, the characteristics or quantity of which require or requires unusual attention, treatment, or expense in handling or treating in the sewerage facilities or any portion thereof;

H. Any waste streams with a closed cup flashpoint of less than one hundred forty degrees (140°) Fahrenheit;

I. Any trucked or hauled wastes except at points designated by the Authority or City.

(Ord. No. 2065, § 2, 8-16-93)

Notwithstanding the limitations upon the wastewater constituents and characteristics of wastewater discharged, caused to be discharged, or permitted to be discharged into the sewerage facilities pursuant to this Article, Authority's Manager may, in connection with the issuance of permits pursuant to the provisions of Article IV, establish additional or different specific limitations on wastewater strength, or deny an application for any such permit, upon a finding by him or her that:

A. The limitations set forth in this Article may not be sufficient to protect the operation of the sewerage facilities, or any portion thereof, or the waste or wastewater proposed to be discharged constitutes a hazard to, or an unreasonable burden upon, such operation, or otherwise causes or may cause, or significantly contributes, or may contribute, to a violation of Authority's NPDES permit; or

B. The limitations set forth in Section 27.12 may be unreasonably restrictive when applied to a specific user or user category and the proposed discharge, if allowed, when added to the total amount authorized by existing permits issued pursuant to these regulations will not cause the amount of any of the following wastewater constituents to exceed the aggregate maximum allowable amount respectively hereinafter established therefor:

C. Notwithstanding the provisions of A and B above, in no event shall limitations established hereunder permit an interfering discharge, or a pass through, or allow a violation of a categorical standard.

(Ord. No. 2065, § 2, 8-16-93)