Earlier editions: 2026-09
Title 13 — PUBLIC SERVICES›Article I — SEWERS
Ione Municipal Code Ch. 13.28 Drainage, Interceptors, Special Uses
Ione Municipal Code · 2026-10 edition · updated 2026-10-04 · Ione
Cite as: Ione Municipal Code Chapter 13.28 · Text as of 2026-10-04
13.28.010 - Drainage into sanitary sewers prohibited.¶
No leaders from roofs and no surface drains for rainwater shall be connected to any sanitary sewer. No surface or subsurface drainage, rainwater, stormwater, seepage, cooling water or unpolluted industrial process waters shall be permitted to enter any sanitary sewer by any device or method whatsoever.
(Ord. 323 §2(part), 1992).
13.28.020 - Use of storm sewers required.¶
Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the city engineer. Industrial cooling water or unpolluted process waters may be discharged, upon approval of the city engineer, to a storm sewer, combined sewer or natural outlet.
(Ord. 323 §2(part), 1992).
13.28.030 - Types of wastes prohibited.¶
Except as hereinafter provided, no person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewer:
A. Any liquid or vapor having a temperature higher than one hundred fifty degrees Fahrenheit;
B. Any water or waste which has a five day, 20 C biochemical oxygen demand (BOD5) greater than three hundred parts per million by weight;
C. Any water or waste which may contain more than one hundred parts per million, by weight, of fat, oil or grease;
D. Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
E. Any compound listed as a priority pollutant by the Environmental Protection Agency (EPA);
F. Any solid waste that has not been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half inch in any dimension;
G. Any ashes, cinders, sand, mud, straw, shavings, manure, or any other solid or viscous substance capable of causing obstruction to the flow in sewers or other interference with the proper operation of sewage works;
H. Any water or wastes having a pH lower than 5.5 or higher than 9.0 or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewage works;
I. 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 a hazard in the receiving waters of the sewage treatment plant;
J. 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;
K. Any noxious or malodorous gas or substance capable of creating a public nuisance;
L. Any septage, septic tank sludge, or chemical toilet wastes.
(Ord. 323 §2(part), 1992).
13.28.040 - Interceptors required.¶
A. Grease, oil and sand interceptors shall be provided and installed by the discharger when, in the opinion of the city engineer or the Amador County health department, they are necessary for the proper handling of wastes containing grease of animal, vegetable and/or mineral origin in excessive amounts or any flammable waste, sand, grit and/or other harmful ingredients. All interceptors shall be of a type and capacity approved in writing, prior to installation, by the city engineer, and shall be located so as to be readily and easily accessible for cleaning and inspection. Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, watertight and equipped with easily removable covers which, when bolted in place, are gastight and watertight. Grease and/or oil/sand interceptors shall be constructed in any place or building having a capacity to serve group meals or commercial and industrial cleaning facilities.
B. If either the city engineer or the Amador County health department determines that an interceptor is required for a business existing at the effective date of the ordinance codified in this section, then that business shall have up to six months from the date of notification to provide and install the interceptor, unless, upon appeal to the city council, a different date is set by the city council; provided, however, that if there is a change in ownership of that business from the effective date of the ordinance codified in this section through the six-month compliance period, the business shall immediately provide and install the interceptor upon the change of ownership.
(Ord. 352 §1(part), 1995).
13.28.045 - Maintenance of interceptors.¶
Where installed, all grease, oil, sand and grit interceptors shall be maintained by the owner, at owner's expense, in continuous, efficient operation at all times. Materials collected shall not be reintroduced into the sewerage system. Records of all maintenance, cleaning, and hauling of materials shall be maintained by the owner and such records shall be available at all times for inspection by city personnel. The city shall establish a schedule for the inspection of the interceptors.
(Ord. 352 §1(part), 1995).
13.28.050 - Preliminary treatment of wastes.¶
A. The admission into the public sewers of any waters or wastes having the characteristics set forth below is prohibited without preliminary treatment as prescribed herein:
A five-day biochemical oxygen demand greater than three hundred milligrams per liter (mg/l); or
Containing more than three hundred fifty mg/l of suspended solids; or
Having an average daily flow greater than two percent of the average daily dry weather flow of the city's primary treatment waste water facility.
B. Projects that have waste water discharges meeting with these characteristics shall not be connected to the city system without written approval of the city engineer.
C. Projects that have waste water discharges meeting with these characteristics and are currently connected to and discharging into the city system shall immediately comply with Section 13.28.055 of this chapter.
(Ord. 352 §1(part), 1995).
13.28.055 - Construction of preliminary treatment facilities.¶
Plans, specifications, and other pertinent information relating to proposed preliminary treatment facilities shall be submitted to the city engineer for approval, the Regional Water Quality Control Board of the state, and such other agencies as the city may from time to time direct, and no construction of such facilities shall commence until such approvals are obtained in writing. Upon receipt of approvals and the payment of any related fees, owner shall install the preliminary treatment facilities as approved by the city and in conformance with the applicable provisions of this code.
(Ord. 352 §1(part), 1995).
13.28.060 - Maintenance of pretreatment facilities.¶
Where preliminary treatment facilities are installed, they shall be maintained by the owner, at owner's expense, in continuous, efficient operation at all times. Records of all maintenance, testing and cleaning shall be maintained by the owner and such records shall be available at all times for inspection by city personnel.
(Ord. 352 §1(part), 1995).
13.28.080 - Control manholes.¶
When required by the city engineer, the owner of any property served by a side sewer carrying industrial wastes shall install a suitable control manhole in the side sewer to facilitate observations, sampling and measurement of wastes. Such manhole, when required, shall be accessibly and safely located, and 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.
(Ord. 323 §2(part), 1992).
13.28.090 - Measurements and tests.¶
All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in Sections 13.28.030 and 13.28.060 shall be determined in accordance with standard methods and shall be determined at the control manhole provided for in Section 13.28.080, or upon suitable samples taken at said control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the side sewer is connected.
(Ord. 323 §2(part), 1992).
13.28.100 - Special agreements.¶
No statement contained in this chapter shall be construed as preventing any special agreement or arrangement between the city and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the city for treatment, subject to payment therefor by the industrial concern and subject to such terms and conditions as might be required by the city.
(Ord. 323 §2(part), 1992).
13.28.110 - Swimming pools.¶
It is unlawful for any person to discharge the contents of a swimming pool into a sanitary sewer.
(Ord. 323 §2(part), 1992).
13.28.120 - Car washes.¶
From and after the effective date of the regulations codified in this article, the city engineer shall require that the applicant for any permit, which includes a car wash within the facilities to be covered by said permit, provide facilities for reclamation and reuse of all or a portion of the water used in the car wash process and the submittal of plans and specifications for the installation of such reclamation and reuse facilities acceptable to the city engineer.
(Ord. 323 §2(part), 1992).
13.28.130 - Enforcement and administration.¶
The city engineer and/or the city engineer's duly designated representative shall be charged with the administration and enforcement of the provisions of this chapter.
(Ord. 352 §1(part), 1995).
13.28.140 - Violation-Penalty.¶
Any person or persons, firm, association or corporation, or other entity violating any term or terms of this chapter is guilty of a misdemeanor, and upon conviction thereof is punishable by a fine of not more than one thousand dollars, or by imprisonment for a period of not more than six months in the County Jail, or by both fine and imprisonment.
(Ord. 352 §1(part), 1995).
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