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(A) Any person whose permit has been suspended or revoked under the provisions of this article, or for whom service has been terminated and disconnection effected under the provisions of this article, may petition the Council for the reinstatement of the permit and reinstatement of service. The petition shall be verified under the oath or declaration, under penalty of perjury, of the person petitioning. The petition shall contain a detailed statement of the corrective action taken by the petitioner or others to remove the grounds for suspension or revocation, termination, and disconnec-tion, and of the corrective measures or devices to prevent a repetition of the offense, and of the proposed security against further violation. The petition shall contain the name and address of the petitioner for the purposes of receiving notice. The petition shall be filed with the City Engineer.
(B) The petition shall be heard within 35 days after the date of filing with the City Engineer. Notice of the time, date, and place of the hearing shall be given to the petitioner at least 10 days before the hearing, in writing, mailed to the petitioner at the address shown on the petition; provided, however, the petitioner may waive the notice in writing.
(C) At the hearing the Council shall consider the evidence presented by the petitioner in support of his petition and evidence in opposition.
(D) The Council, in its discretion, may restore the permit, service, and connection if the Council finds by resolution that the grounds for suspension, revocation, termination, or disconnection have been corrected and that there is adequate assurance from the petitioner of corrective measures or devices to prevent a repetition of the offense for which the permit was suspended or revoked and service terminated or disconnected.
(E) The Council, as a condition to the restoration of the permit, service, and connection, may:
(1) Require the petitioner to provide reasonable safeguards and security to avoid a repetition of the offense for which the permit was suspended or revoked and service terminated and disconnected;
(2) Impose reasonable charges in accordance with the schedule adopted by the city to compensate the city for expenses incurred by the city in connection with the suspension, revocation, termination, and disconnection and in connection with the reinstatement of the permit and the restoration of service and reconnection;
(3) Impose reasonable charges in accordance with the schedule adopted by the city to compensate the city for any damage to its facilities or any overload to its facilities which the petitioner should equitably be required to pay or which the petitioner would have been required to pay under the provisions of this article;
(4) Impose such other reasonable conditions or regulations as shall be necessary to protect the public health, safety, and property and to prevent a nuisance; and
(5) Impose such reasonable conditions or regulations as shall be necessary to comply with the requirements of the State Regional Water Quality Control Board, or State Water Resources Control Board, or Contra Costa County Sanitation District No. 7-A, or the city.
('66 Code, § 6-4.107) (Ord. 409-C-S, passed 8-9-79)
No person shall discharge or cause to be discharged any substances, materials, waters, or wastes if such wastes can harm either the sewers or the sewage treatment process or equipment, have an adverse effect on the receiving stream, cause the city to violate the discharge requirements established by the State Regional Water Quality Control Board, or can otherwise endanger the health, safety, or public property or constitute a nuisance.
('66 Code, § 6-4.108) (Ord. 409-C-S, passed 8-9-79) Penalty, see §§ 1-2.01 et seq.
Except as provided in this article, no person shall discharge or cause to be discharged any of the following described waters or wastes to any public sanitary sewer or storm sewer:
(A) Any liquid or vapor having a temperature higher than 150°F;
(B) Any waters or wastes containing:
(1) Floatable grease, oil, or fat of animal or vegetable origin in excess of 25 milligrams per liter;
(2) Floatable grease, oil, or fat of mineral origin in excess of 10 milligrams per liter; and
(3) Dispersed grease, oil, or fat in excess of 200 milligrams per liter;
(C) Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid, or gas;
(D) Any garbage which has not been properly shredded;
(E) Any ashes, sand, mud, straw, shavings, metal, glass rags, feathers, tar, plastics, wood, or any other solid or viscous substance capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewerage system;
(F) Any waters or wastes having a pH lower than 6.5 or higher than 9.0 or having any other corrosive property capable of causing damage or hazard to the structures, equipment, and personnel of the sewerage works;
(G) (1) Any waters or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the sewage treatment plant. The following is a partial list of toxic substances and their maximum concentration allowable for admission into the public sewer system:
Maximum Allowable
Toxic Concentration
Substances (mg/liter)
Toxic Concentration
Substances (mg/liter)
Alcohols 100
Aldehyde 5.0
Aluminum 5.0
Arsenic and arsenicals 1.0
Barium 5.0
Beryllium 5.0
Boron 10.0
Bromine, iodine, and chlorine 50.0
Cadmium 0.1
Chromium and chromium salts 0.5
Copper and copper salts 0.5
Creosols and creosotes 2.0
Cyanides and nitriles 0.2
Fluorine 1.5
Formaldehyde 5.0
Iron 5.0
Lead 0.5
Manganese 0.5
Mercury and mercurials (as mercury) 0.01
Methyl ethyl ketone and related substances 5.0
Nickel 5.0
Phenols and their derivatives 0.5
Selenium 2.0
Silver and silver compounds (as silver) 0.05
Toluene 5.0
Xylene 5.0
Zinc compounds (as zinc) 1.0
(2) None of the following substances will be allowed unless specifically approved in writing by the City Engineer: algacides, antibiotics, bacteri-cides, fungicides, insecticides, sulfonamides, and dyes; strong oxidizing agents, such as chromates, dichromates, permanganates, peroxides, and the like; and strong reducing agents, such as nitrates, sulfides, sulfites, thiosulfates, and the like.
(3) The maximum allowable concentration of toxic or potentially toxic materials not listed in this division will be determined by the City Engineer on an individual basis.
(4) In no event shall any individual waste discharged to the public sewers have a 96 hour median tolerance limit (TLm), as determined by the Routine Fish Bioassay Method, of less than 25%.
(H) Any waters or wastes containing suspended solids of such character and quantity that unusual attention or expense is required to handle such materials at the sewage treatment plant;
(I) Any noxious or malodorous substances which by themselves or by interaction with other wastes may create a nuisance or hazard or make human entry into the sewers extraordinarily hazardous;
(J) Any garbage or any fruit, vegetable, animal, or other solid material from any food-processing plant or other industrial plant, irrespective of whether or not the same has 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, any mechanical garbage or waste grinder that is connected directly or indirectly to the sanitary sewer system of the city, or any part thereof;
(K) Any water or waste having a five day bio-chemical oxygen demand greater than 300 milligrams per liter;
(L) Any water or waste which exerts or causes excessive discoloration;
(M) Any water or waste having greater than 350 milligrams per liter of suspended solids;
(N) Any unusual volume of flow or concentra-tion of wastes constituting a “slug” where “slug” is defined as any discharge of water, sewage, or industrial waste which, in concentration of any given constituent or in quantity of flow, exceeds for any period of duration longer than 15 minutes more than five times the average 24 hour concentration or flow during normal operation;
(O) Any water or wastes containing dissolved sulfides in excess of 1.0 milligram per liter;
(P) Any water or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the discharge requirements established by the State Water Resources Control Board or the Regional Water Quality Control Board;
(Q) (1) Any storm water, surface water, ground water, roof runoff, subsurface drainage, uncontaminated cooling water, or unpolluted industrial process water;
(2)
UNPOLLUTED WATER shall mean any water within the following limits of quality:
pH 7.0 min., 8.5 max.
Dissolved solids 1,000 mg/liter, max.
Biochemical oxygen demand 5 mg/liter, max.
Suspended solids 5 mg/liter, max.
Settleable solids 0.1 mg/liter, per hour, max.
Grease of oil None
Color or odor None
Toxic None
(R) River water which has not been contaminated by industrial or other use.
('66 Code, § 6-4.109) (Ord. 409-C-S, passed 8-9-79) Penalty, see §§ 1-2.01 et seq.
When the volume of waste discharge from any single industrial establishment is greater than 10% of the average daily sewage flow to the treatment plant, the City Engineer may impose separate or special concentration limits more stringent than those set forth in this article.
('66 Code, § 6-4.110) (Ord. 409-C-S, passed 8-9-79)
Any physical connection to a public sewer, or to a private sewer connected to a public sewer, from vessels, tanks, or containers receiving any of the materials and substances mentioned in this article from which quantities of such prohibited materials or substances could accidentally be discharged directly or indirectly into the public sewers shall be prohibited. Precautions shall be taken to prevent the accidental spillage of any of the materials mentioned in this article to floor drains, basins, downspouts, gutters, and the like from any manufacturing process or storage vessel.
('66 Code, § 6-4.111) (Ord. 409-C-S, passed 8-9-79) Penalty, see §§ 1-2.01 et seq.
(A) May be required. Grease, oil, and sand interceptors shall be provided when, in the opinion of the City Engineer, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts or any flammable wastes, sand, or other harmful ingredients, except that such interceptors shall not be required for private living quarters or dwelling units.
(B) Approval and location. All interceptors shall be of a type and capacity approved by the City Engineer and shall be so located as to be readily and easily accessible for cleaning and inspection.
(C) Construction. Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construc-tion, watertight, and equipped with easily removable covers which, when bolted in place, shall be gastight and watertight.
(D) Maintenance by owners. Where installed, all grease, oil, and sand interceptors shall be maintained by the owner, at his expense, in continuously efficient operation at all times.
('66 Code, § 6-4.112) (Ord. 409-C-S, passed 8-9-79) Penalty, see §§ 1-2.01 et seq.
(A) May be required. When required by the City Engineer, the owner of any property served by a building sewer carrying wastes of unusual strength or character shall install and maintain, at no cost to the city, a suitable control manhole in the building sewer to facilitate the observation, sampling, and measurement of the wastes.
(B) Location, installation, and maintenance by owners. Such manholes, when required, shall be accessible and safely located and shall be constructed in accordance with plans approved by the City Engineer. The manhole shall be installed by the owner at his expense and shall be maintained by him so as to be safe and accessible at all times.
('66 Code, § 6-4.113) (Ord. 409-C-S, passed 8-9-79) Penalty, see §§ 1-2.01 et seq.
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