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Article IX. Regulations of Wastes and Water
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A. Prohibited Discharges. No person shall discharge or cause to be discharged any of the following described wastes or water into the sanitation system:

1. Pollutants which create a fire or explosive hazard in the treatment plants and collection system, including, but not limited to, waste streams with a closed-cup flashpoint of less than 140 degrees Fahrenheit using test methods specified in 40 CFR 261.21.

2. Wastewater having a pH lower than 5.0 or higher than 9.5 or otherwise causing corrosive structural damage to the treatment plants and collection system.

3. Solids or viscous substances in amounts which will cause obstruction of the flow in the sanitation system resulting in interference.

4. Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the sanitation system.

5. Wastewater having a temperature greater than 140 degrees Fahrenheit, or which will inhibit biological activity in the treatment plant resulting in interference, but in no case wastewater which causes the temperature at the introduction into the treatment plant to exceed 104 degrees Fahrenheit.

6. Petroleum oil, nonbiodegradable cutting oil, or products of mineral origin in amounts that will cause interference or pass through.

7. Pollutants which result in the presence of toxic gases, vapors, or fumes within the collection system or at a treatment plant in a quantity that may cause acute worker health and safety problems.

8. Trucked or hauled pollutants, except at discharge points designated by the general manager in accordance with CVWDC 4.05.410.

9. Waters or wastes containing substances which are not amenable to treatment or reduction by the treatment processes employed, or are amenable to treatment only to such degree that the water reclamation plant effluent cannot meet the requirements of other agencies having jurisdiction.

10. Any waters or wastes containing dissolved, suspended or settleable solids of such character and quantity that additional wastewater treatment processes or expense is required to handle such materials in the sanitation system.

11. Any noxious or malodorous gas or substance in a quantity capable of creating a public nuisance.

B. Controlled Discharges. Except as hereinafter provided, no person shall discharge or cause to be discharged any of the following described wastes or water into the sanitation system without the express written consent of the general manager:

1. Any water or wastes having a BOD or cBOD greater than 400 mg/L by weight.

2. Any water or wastes containing more than 500 mg/L by weight of total suspended solids.

3. Any water or wastes containing wax, whether emulsified or not, in excess of 100 mg/L or containing substances, which may solidify or become viscous at temperatures between 32 and 150 degrees Fahrenheit.

4. Any food waste that has not been properly shredded to a maximum of three-eighths inch.

5. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the general manager in compliance with applicable state or federal regulations.

6. Unusual volume of flow or concentration of waste constituting slugs.

7. Any waste products resulting from the handling, storage and sale of fruits and vegetables in wholesale or retail produce establishments and wastes from plants engaged in the preparation, processing or preserving of foods not intended primarily for immediate consumption.

8. Any waters or wastes which contain more than 150 milligrams per liter (mg/L) of fat, oil, or grease.

9. Any storm water, surface water, groundwater, impounded water, lake water, pond water, roof runoff, subsurface drainage, or pool/spa water.

10. Industrial waste.

11. Any brines or dissolved salts in excess of 1,000 mg/L to the sanitation system, including discharge of salts from regeneration of water softening units in industrial, commercial establishments, or private residences and homes.

12. Water resulting from the operation of equipment that uses water in a single pass operation. Examples of this use include, but are not limited to, water cooled equipment (i.e., cooling towers, refrigerators, freezers, ice makers, chillers, air conditioners, heat exchangers, ice cream dispensers, yogurt dispensers and precoolers) and vehicle washers (i.e., car and/or truck washers).

13. Any waste diluted with water or in any way dilute waste as a partial or complete substitute for adequate treatment to achieve compliance with CVWD requirements, except where expressly authorized by the general manager. (Ord. 1427.4 § 9-1, 2022)