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Earlier editions: 2026-09

Title 13 — PUBLIC SERVICES›Chapter 13.04 — SEWER USE REGULATIONS AND FEES

Scotts Valley Municipal Code Art. II Prohibitions

Scotts Valley Municipal Code · 2026-10 edition · updated 2026-10-04 · Scotts Valley

Cite as: Scotts Valley Municipal Code Article II · Text as of 2026-10-04

13.04.020 - General prohibitions.

No person shall discharge, or cause or permit to be discharged, directly or indirectly into the sanitary sewer system, any materials which cause, threaten to cause, or are capable of causing, either alone or by interaction with other substances:

A. A fire or explosion;

B. Obstruction of flow in, or damage to, the sanitary sewer system, or any portion thereof;

C. Threatens the life or safety of persons;

D. Conditions inhibiting or preventing the effective maintenance or operation of the sanitary sewer system;

E. Strong or offensive odors, air pollution, or any noxious, toxic, or malodorous gas or substance, or gas-producing substances;

F. Interference with, or overloading of, the sanitary sewer system, or a condition requiring unusual attention or expense for the collection and treatment of wastewater by the sanitary sewer system;

G. Interference with any wastewater reclamation, or sludge reuse process, which does or may operate in conjunction with the sanitary sewer system, or which renders such reclamation or sludge reuse process unpracticable or not feasible under normal operating conditions;

H. A detrimental environmental impact, or nuisance wherever located, or a condition unacceptable to any public agency having regulatory jurisdiction over operation of the sanitary sewer system;

I. Discoloration, or any other adverse conditions in the quality of the effluent from the sanitary sewer system such that receiving water quality requirements established by any statute, rule, regulation, ordinance, or permit condition, cannot be met by the city;

J. Conditions at or near the sanitary sewer system which cause, or may cause, the city to be in violation of any laws, rules, regulations and orders of the state of California and of the United States.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.025 - Storm drainage and groundwater.

No person shall discharge, or cause or permit to be discharged into the sanitary sewer system or any part thereof, any storm water, surface water, ground water, roof runoff, or subsurface drainage, or any water acceptable into the storm sewer system according to standards maintained by the state of California.

(Ord. 79.18 § II.A (part), 1993).

Exceptions & meaning →

13.04.030 - Unpolluted water.

No person shall discharge, cause or permit to be discharged into the sanitary sewer system or any part thereof, any unpolluted cooling water or unpolluted industrial process water.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.035 - Garbage grinders.

A. No person shall discharge, or cause or permit to be discharged, directly or indirectly, into the sanitary sewer system or any part thereof, any garbage or fruit, vegetable, animal or other solid kitchen waste material resulting from the preparation of any food or drinks, in any dwelling, restaurant, or eating establishment, unless the same shall have first been passed through a mechanical garbage grinder or waste grinder in conformance with the provisions of the plumbing and electrical code of the city.

B. No person shall discharge, or cause or permit to be discharged, into the sanitary sewer system or any part thereof, any garbage, or any fruit, vegetable, animal or other solid material from any food-processing plant or other industrial plant or retail grocery store, irrespective of whether or not the same shall have been first passed through a mechanical grinder, and no person shall install, operate, use or maintain upon the premises of any food processing plant, or any other industrial plant or retail grocery store, any mechanical grinder or waste grinder that is connected directly or indirectly to the sanitary sewer system, or any part thereof.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.040 - Point of discharge.

A. No person shall discharge, or cause or permit to be discharged, directly or indirectly, any wastewater, or any object, material, or other substance directly into a manhole or other opening into the sanitary sewer system other than through an approved sewer lateral.

B. However, wastewater may be discharged into the sanitary sewer system by means other than through an approved sewer lateral provided a permit (direct discharge permit) therefor is issued by the manager.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.045 - Holding tank waste.

No person shall discharge, cause or permit to be discharged any holding tank waste into the sanitary sewer system.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.050 - Radioactive wastes.

No person shall discharge, cause or permit to be discharged any radioactive material into the sanitary sewer system.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.055 - Grease interceptors.

A. Any type of business or establishment where oil or grease of animal, vegetable, or mineral origin may be discharged into a public sewer shall have a grease interceptor or trap of a size and design approved by the manager or his authorized representative. Such businesses or establishments shall include but not be limited to: restaurants of all types, hospitals, school and business cafeterias, convalescent homes, car washes, and auto repair outlets.

B. Each grease interceptor shall be installed and connected so that it is at all times easily accessible for inspection, cleaning, and removal of intercepted grease.

C. The grease interceptor should be situated on the user's premises, but the city may, when such a location would be impractical or cause undue hardship on the user, allow the facility to be constructed in the public street or sidewalk area and located so that it will not be obstructed by landscaping or parked vehicles.

D. Waste discharged from fixtures and equipment which may contain oil or grease, including, but not limited to, scullery sinks, pot and pan sinks, dishwashers, food waste disposals, soup kettles, and floor drains located in areas where such objectionable materials may exist, shall be drained into the sanitary sewer system through an approved interceptor; however, toilets, urinals, wash basins, and other fixtures containing fecal materials shall not flow through the interceptor.

E. The interceptors shall be maintained in efficient operating condition by periodic removal of the accumulated oil and grease. Outdoor interceptors shall be pumped by a licensed commercial grease pumper once every three months, unless a determination is made by the manager, on a case by case basis, that less frequent pumping is adequate. Interior grease traps shall be cleaned no less often than monthly. Whenever an interceptor or trap is cleaned, the full volume of water and grease present shall be removed. Under no circumstances shall the removed water or grease be reintroduced into any city sewer. Flushing a trap with hot water, or the use of chemicals or other agents to dissolve grease, is specifically prohibited.

F. Proof of pumping or cleaning shall be submitted to the manager upon request. In the case of interceptors pumped by a licensed grease pumper, such proof shall consist of a signed and dated invoice or manifest. For self-cleaned interior grease traps, a bound written log shall be kept, and a dated, signed notation shall be made each time the trap is cleaned.

G. Abandoned grease interceptors shall be emptied and filled as required for abandoned septic tanks (Section 1119 of the Uniform Plumbing Code).

H. Existing facilities for which a determination by the manager has been made that a grease trap or interceptor is required shall have one year from the date of notice by the manager to install an approved trap or interceptor. New facilities proposing to discharge into the sanitary sewer system must have an approved trap or interceptor installed prior to connecting to the sanitary sewer system.

I. Any premise which operates a steam cleaner or high pressure washer for the purpose of cleaning or degreasing any type of vehicle or equipment shall be subject to the provisions of this Section.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.060 - General discharge limitations.

A. Toxic Substances.

  1. No person shall discharge, or cause or permit to be discharged, directly or indirectly into the sanitary sewer system or any part thereof, any toxic or poisonous substances or any other pollutant, including BOD and COD, in sufficient quantity to injure or cause an interference with the sewage treatment process, or in sufficient quantity to constitute a hazard to humans or animals, or in sufficient quantity to create a hazard for humans, animals or fish in any waters receiving effluent from the sanitary sewer system, or which may create a hazard in the use or disposal of sewage sludge or reclaimed water. No person shall discharge, or cause or permit to be discharged into the sanitary sewer system or any part thereof, any industrial wastewater containing any of the following toxic substances exceeding the concentrations set forth, to wit:
Toxic Substance Maximum Allowable Concentration Maximum Allowable Concentration
Acrolein & acrylonitril 0.20 mg/L
Aldehyde 0.010 mg/L
Ammonia, as nitrogen 60.0 mg/L
Antimony 1.0 mg/L
Arsenic 0.10 mg/L
Barium 5.0 mg/L
Beryllium 1.0 mg/L
Boron 1.0 mg/L
Cadmium 0.20 mg/L
Chlorinated hydrocarbons, including but not limited to, pesticides, herbicides, algaecides trace
Chromium, Total 0.50 mg/L
Copper 2.0 mg/L
Cyanides 1.0 mg/L
Dinitro-o-cresol & 2,4-Dinitrophenol 0.50 mg/L
Fluorides 10.0 mg/L
Formaldehydes 0.010 mg/L
Lead 1.0 mg/L
Manganese 0.5 mg/L
Mercury 0.010 mg/L
Methyl Ethyl Ketone & other water insoluble ketones 0.010 mg/L
Nickel 1.0 mg/L
Phenol & derivatives 1.0 mg/L
Chlorinated phenolics 0.20 mg/L
Selenium 2.0 mg/L
Silver 0.50 mg/L
Sulfides 0.10 mg/L
Toluene 0.010 mg/L
Total Toxic Organics (TTO) 1.37 mg/L
Xylene 0.010 mg/L
Zinc 3.0 mg/L
  1. In no event shall any person discharge, or cause or permit to be discharged into the sanitary sewer system or any part thereof, any industrial waste having a ninety-six hour median lethal concentration (LC50), as determined in accordance with "Standard Methods," of less than one percent.

  2. For the purpose of this section, discharge limitations as established in this section shall be deemed implemental of the United States Environmental Protection Agency's Pretreatment Regulations as set forth in 40 CFR Part 403.

B. Additional Limitations. No person shall discharge, or cause or permit to be discharged, directly or indirectly, into the sanitary sewer system any wastewater:

  1. The temperature of which is higher than one hundred fifty degrees Fahrenheit (65 degrees Centigrade), or which, alone or in combination with other discharges, creates a temperature greater than one hundred four degrees Fahrenheit (49 degrees Centigrade) in the sanitary sewer system;

  2. Containing more than three hundred mg/L of oil or grease of animal or vegetable origin;

  3. Containing more than twenty-five mg/L of oil or grease of mineral or petroleum origin;

  4. Having a pH lower than 6.0 or greater than 9.5 or having a corrosive property capable of causing damage or hazard to structures or equipment of the sanitary sewer system or any portion thereof;

  5. Any sand, grit, straw, metal, glass, rags, feathers, paper, tar, plastic, styrofoam, 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;

  6. Any toxic, or poisonous, substance not otherwise specifically prohibited in this chapter in sufficient quantities to constitute a hazard to humans or animals, or to create a hazard in the sanitary sewer system, or to injure or interfere with the operation thereof;

  7. Any waste containing suspended solids, not otherwise specifically prohibited under the provisions of this chapter, the characteristics or quantity of which require unusual attention, treatment, or expense in handling or treating such material in the sanitary sewer system, or any portion thereof;

  8. Any medical or infectious wastes, excepts those normally produced by family medical or dental practices;

  9. Any waste produced in the manufacture of genetically engineered products, or other biotechnology process, unless it can be demonstrated that no biologically active principles or organism deleterious to the sanitary sewer system, to human health, or to the environment, are present.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.065 - Protection from damage.

No person shall maliciously, willfully, or negligently break, damage, destroy, uncover, deface, or tamper with any structure, appurtenance, or equipment which is a part of the sanitary sewer system.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.070 - Vehicle radiator wastewater and sludges.

No person shall discharge, cause or permit to be discharged, directly or indirectly, into the sanitary sewer system, the drained wastewater from motor vehicle radiators, without having first pretreated the wastewater and obtained a permit therefor from the manager. Sludges from the pretreatment of radiator wastewater are specifically prohibited from discharge into the sanitary sewer system.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.075 - Discharge into storm drain prohibited.

No person shall discharge, cause or permit to be discharged, directly or indirectly, any domestic or industrial wastewater, steam cleaner or high pressure washer runoff, petroleum products, vehicle radiator wastes, or other pollutants, or any objects capable of causing an obstruction, into any storm drain or natural channel flowing into any waters of the city or the state.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.080 - Water softening wastes.

No person shall install, replace, or enlarge apparatus for softening all or any part of the water supply to any premises when such apparatus is an ion-exchange softener or demineralizer of the type that is regenerated on the site of use with the regeneration of wastes being discharged to the ground, storm drain or the sanitary sewer system. This section shall not apply to apparatus of the type which is regenerated off-site by a water conditioning company. A person installing or operating a water-softening apparatus of any kind shall make such apparatus accessible to the manager for inspection at all times and shall make such reports relative to such apparatus as the manager may request.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

13.04.085 - Evolving federal and/or state discharge standards.

No person shall discharge, or cause or permit to be discharged directly or indirectly into the sanitary sewer system, wastewater in violation of Categorical Pretreatment Standards as set forth in 40 CFR Chapter I, Parts 405—471 as may be amended, or any other federal or state law. In the event of conflict between or among any standards set forth in this chapter, the most restrictive standard shall apply.

(Ord. 79.18 § II.A (part), 1993)

Exceptions & meaning →

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