Ontario Municipal Code Art. 4 Facilities

Upon request by the City:

(a) Applicants or users may be required to submit three (3) copies of detailed facility plans. The submittal shall be in a form and content acceptable to the City for review of existing or proposed pretreatment facilities, spill containment facilities, monitoring facilities, metering facilities, and operating procedures. The review of the plans and procedures shall in no way relieve the user of the responsibility of modifying the facilities or procedures in the future, as necessary to produce an acceptable discharge and to meet the requirements of this chapter or any requirements of other Regulatory Agencies.

(b) The drawing shall depict as a minimum, the manufacturing process (waste generating sources), spill containment, monitoring or metering facilities, and pretreatment facilities.

(c) The applicant or user shall submit a schematic drawing of the pretreatment facilities, piping and instrumentation diagram, and wastewater characterization report.

(d) Users and applicants may also be required to submit for review site plans, floor plans, mechanical and plumbing plans, and details to show all sewers, spill containment, clarifiers, and appurtenances by size, location, and elevation for evaluation.

(e) The City may require the drawings be prepared by a California Registered Chemical, Mechanical, or Civil Engineer.

(§ 3, Ord. 2755, eff. April 4, 2002)

(a) An industrial wastewater pretreatment facility or device may be required to restrict or prevent the discharge to the sewerage system of certain wastewater constituents, or to accomplish any pretreatment result required by the Administrator.

(b) A pretreatment facility which requires engineering design shall have plans prepared and signed by an engineer of suitable discipline licensed in the State of California.

(c) Detailed plans showing the pretreatment facilities and operating procedures, and compliance schedules shall be submitted to the City for review and approval before construction of the facility.

(d) The review of such plans and operating procedures will in no way relieve the permittee from the responsibility of modifying the facility as necessary to produce an effluent acceptable to the Administrator under the provisions of this ordinance.

(e) Any subsequent changes in the pretreatment facilities or method of operation shall be reported to and be approved by the Administrator.

(f) The Administrator or his/her appointed designee shall have the authority in negotiation with any industrial permittee, to impose compliance schedules relating to installation of specific pretreatment equipment, filing of reports, and achievement of specific discharge conditions.

(g) No permittee shall increase the use of process water or in any way attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with any local, state, or federal discharge standard.

(h) The user shall establish and maintain a daily operation and maintenance log for any pretreatment system. The daily operation and maintenance log shall contain, at a minimum, the following information:

(1) The name of the user responsible for the operation of the pretreatment system, hours of work, and telephone number;

(2) Date, time, and a description of all routine maintenance and calibration of the system;

(3) Date and time of any major repair and down time on the system;

(4) The emergency or backup system or program instituted while the pretreatment system was out of operation; and

(5) The estimated daily operational efficiency of the pretreatment system and any other information which may be required to assure compliance with pretreatment requirements.

(6) A food service establishment shall keep records of grease pretreatment device cleaning, maintenance and grease removal and shall report on such maintenance to the Administrator when required. The Administrator may require the permittee to provide results of periodic measurements of its discharge which may include chemical analysis for oil and grease content and other constituents.

(i) The Administrator may require any user discharging into the sewerage system to install and maintain, on their property and at their expense, a suitable storage and flow-control facility to ensure equalization of flow. An individual wastewater discharge permit may be issued solely for flow equalization.

(j) The user shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the user to achieve compliance with the conditions of the permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by an industrial user when the operation is necessary to achieve compliance with the conditions of the permit.

(k) Waste solids and/or liquids containing pollutants removed in the course of the users pretreatment processes shall be properly disposed of in a manner such as to prevent any pollutant from such materials from entering the sewerage system.

(l) Whenever deemed necessary, the General Manager may require users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage wastestreams from industrial wastestreams, and such other conditions as many be necessary to protect the POTWS and determine the user's compliance with the requirements of this ordinance.

(m) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.

(§ 3, Ord. 2755, eff. April 4, 2002, as amended by § 2, Ord. 3190, eff. October 7, 2021)

(a) Each industrial user shall install and maintain a monitoring facility for each point-source to the sewerage system. The monitoring facility and its location are subject to approval by the Administrator.

(b) All proposed construction of commercial and/or industrial buildings shall include plans to install a surveillance/monitoring facility for each point-source to the sewerage system. The surveillance/monitoring facility and its location are subject to approval by the Administrator or in accordance with the City Standard Drawings.

(c) When more than one user can discharge into a common private sewer, the Administrator may require installation of a separate monitoring facility for each user. Also, when in the judgement of the Administrator, there is a significant difference in wastewater constituents and characteristics produced by different operations of a single user, the Administrator may require that a separate monitoring facility be installed for each segregated wastestream. This may include, but may not be limited to, segregation of Categorical process wastestreams from additional wastestreams not subject to categorical standards.

(d) City standard drawings establish design requirements, applicable construction standards, safety devices and specifications for surveillance/monitoring facilities. The design plans for any required or surveillance/monitoring facility shall be prepared and signed by an engineer registered in the State of California. Such plans shall be reviewed and must be approved by the Administrator prior to any construction of said facility. The approval of the design of any facility meeting the requirements set forth in this section or any recommendation or requirements made by the Administrator, shall not relieve the user from the responsibility of meeting the requirements of this chapter, and shall not impute any liability to the City for the adequacy of such facility under the actual conditions of use.

(e) If explosive or flammable substances are stored or used on-site, and such substances have the potential of entering the sewerage system, the user may be required to install, operate and maintain a combustible gas monitoring system and facilities to divert the entire wastewater flow to a holding tank when the combustible gas level is greater than twenty percent (20%) of the lower explosive limit. These facilities will be provided and maintained at the user's own cost and expense. A user so notified shall provide detailed gas monitoring and wastewater diversion plans, including facilities and operating procedures, to the Administrator for review.

(f) If required by the City in writing, the user shall submit construction plans and/or instrumentation for approval by the City of the following:

(1) A pH-recording instrument with a strip chart to record all flows on a twenty-four (24) hour continuous basis;

(2) A conductivity meter with a strip chart to record all flows on a twenty-four (24) hour continuous basis;

(3) A flume, weir, flow meter or similar device approved by the City and suitable to measure the non-domestic flow rate and total volume on a continuous basis. The monitoring equipment shall be maintained at all times in a safe and proper operating condition by the user. All devices used to measure wastewater flow and quality shall be calibrated at a frequency determined by the Administrator to ensure their accuracy. The costs of installing and maintaining such device(s) shall be at the sole expense of the user.

(g) Construction of any monitoring facility or device shall be completed within a time period established by the Administrator.

(h) Unrestricted access to the monitoring facility shall be available to authorized personnel of the City and IEUA at all times. Unreasonable delays in allowing City or IEUA personnel access to the user's premises shall be a violation of this chapter.

(i) Any temporary or permanent obstruction to safe and easy access to the monitoring facility or surveillance/monitoring facility shall be promptly removed by the user at the written or verbal request of the Administrator and shall not be replaced. The costs of clearing such access shall be borne by the user.

(j) A monitoring facility or surveillance/ monitoring facility may be required to include a security closure that can be locked by the City during sampling or upon termination of service.

(k) A monitoring facility or surveillance/ monitoring facility shall be located so that samples can be taken immediately downstream from the pretreatment facilities, if any exist, or where no treatment is employed, immediately downstream from the user's wastestream.

(l) Any sample taken from the monitoring facility shall be considered representative of the user's discharge.

(m) Users are responsible for cleaning and maintaining the monitoring facility and equipment. Oils, solids, and other debris removed from the monitoring facility shall not be discharged to the sewer.

(§ 3, Ord. 2755, eff. April 4, 2002, as amended by § 16, Ord. 2816, eff. December 1, 2005)

(a) A food service establishment discharging grease wastes which, under the conditions existing in the downstream sewers, could cause or threaten to cause stoppage or grease accumulations, shall install an approved grease and oil interceptor and regularly maintain it so as to prevent excessive discharges of grease and oil into the sewerage system. The costs of installing and maintaining such device(s) shall be at the sole expense of the user. Any user who operates, owns or maintains a food service establishment shall cause all floor drains, floor sinks, sinks, and waste container wash racks to be directed through the grease and oil interceptor, and shall keep all domestic wastewater from restrooms, showers, drinking fountains, and condensate (i.e. ice melt, air conditioning) separate from the food service wastewater until the food service wastewater has passed through all necessary pretreatment equipment, devices, or monitoring stations.

(b) Each permittee shall be required to provide a collection tank or container for the purpose of physically segregating oils, greases, and greasy solids from wash water. Permittees shall establish procedures for personnel to follow in order to segregate oils, greases, and greasy solids to the collection container prior to performing any washing and other water cleaning which goes into the sewers. The permittee shall be responsible for the proper removal and lawful disposal of the material captured from either the grease pretreatment devices on wastewater lines or the collection container utilized for the segregation of oils, greases and greasy solids.

(c) Each vehicle wash, vehicle or equipment servicing, industrial transportation, and/or cleaning facility shall install an appropriate sand, grease and oil Interceptor of a size and design approved by the Administrator. Wastewater arising from the cleaning, servicing and repair of vehicles shall pass through this interceptor before discharge to the sewerage system.

(d) If an interceptor is not adequate under the conditions of use, one which is effective in accomplishing the intended purpose shall be constructed by the user within a time period established by the Administrator.

(e) The design plans for any required interceptor not included in the Plumbing Code or City standard drawings shall be prepared and signed by an engineer registered in the State of California and meet the drawing submittal requirements set forth in § 6-7.401. Such plans shall be reviewed and must be approved by the Administrator prior to any construction of said device.

(f) The interceptor required by this chapter shall be watertight, structurally sound, durable, properly maintained, and easily accessible for inspection and cleaning to assure that the accumulation of sand, oil or grease does not impair the efficiency of the interceptor or pass through the device. At no time shall any material, debris, obstacle or obstruction be placed in such a manner as to prevent immediate access to the Interceptor.

(g) A user who is required to install and maintain an interceptor shall keep maintenance records and hauler's manifests for a minimum of three (3) years. These records shall be made available to the Administrator upon request. Each vehicle wash and food service facility shall be responsible for the costs of installing, inspecting, pumping, cleaning and maintaining its grease interceptor. Cleaning and maintenance must be performed when the total volume of captured grease and solid material displaces more than twenty percent (20%) of the total volume of the unit. All vehicle wash and food service facilities that have grease interceptors shall utilize a licensed grease hauler who has been permitted for pumping services. Pumping services shall include the initial complete removal of all contents, including floating materials, wastewater and bottom sludge and solids from the interceptor. It is unlawful for any grease waste hauler to reinsert, deposit, pump, place, release, or discharge into a grease trap, grease interceptor, manhole, cleanout, or other sanitary sewer appurtenance any materials that the hauler has removed from the grease trap or grease interceptor, or to cause those materials to be so handled. This prohibition as it pertains to the reinsertion of material removed from a grease trap or grease interceptor, shall not apply to a grease waste hauler that has met all of the conditions that are outlined in both the California Penal Code Section 374.5(a)(2)(b) and the City of Ontario Public Sewer System Ordinance, Title 6, Chapter 7, § 6-7.404. Grease interceptor cleaning shall include scraping excessive solids from the walls, floors, baffles and all pipe work. It shall be the responsibility of each vehicle wash or food service facility to inspect its grease interceptor during the pumping procedure to ensure that the interceptor is properly cleaned out and that all fittings and fixtures inside the interceptor are in working condition and functioning properly.

(h) Each vehicle wash or food service facility shall determine the frequency at which its grease interceptor(s) shall be pumped according to the following criteria:

(1) When the floatable grease layer exceeds six (6) inches in depth as measured by an approved dipping method;

(2) When the settleable solids layer exceeds eight (8) inches in depth as measured by an approved dipping method;

(3) When the total volume of captured grease and solid material displaces more than twenty percent (20%) of the capacity of the interceptor as calculated using an approved dipping method; or

(4) When the interceptor is not retaining/ capturing oils and greases; or the removal efficiency of the device, as determined through sampling and analysis, is less than eighty percent (80%).

(i) Periodic inspection of the interceptor may be performed to determine compliance with this section. The owner and/or user of the property shall be subject to enforcement actions if such user fails to maintain the interceptor and/or keep adequate records.

(j) Conditional waivers for the grease and oil interceptor or sand, grease and oil interceptor requirement shall be granted by the Administrator for food service establishments or vehicle wash, vehicle or equipment servicing, industrial transportation and/or cleaning facility determined not to have adverse effects on the City's sewerage system or the POTW. Conditional waivers may be revoked for the following reasons:

(1) Changes in menu;

(2) Falsification of information submitted;

(3) Change in operating hours;

(4) Changes in equipment used;

(5) Changes in the number of vehicles washed; or

(6) As determined by the Administrator to have adverse effects on the City's sewerage system or the POTW.

(k) The shared use of a grease interceptor by multiple FSEs and/or other industrial users is prohibited unless authorization is granted by the Administrator.

(§ 3, Ord. 2755, eff. April 4, 2002, as amended by § 4, Ord. 2806, eff. January 21, 2005, § 5, Ord. 2945, eff. January 6, 2012, and § 2, Ord. 3190, eff. October 7, 2021)

(a) Upon written notification by the Administrator, the user shall provide secondary spill containment for stored chemicals or other substances which are prohibited or regulated by this chapter and which have the potential of entering the public sewerage system. The user so notified shall submit to the Administrator detailed secondary spill containment plans, including the facility's location, dimensions, and type and volume of material or waste stored.

(b) Drawings shall be submitted in accordance with § 6-7.401.

(c) The containment system shall be designed and operated as follows:

(1) The base shall be free of cracks or gaps, and shall be sufficiently impervious to contain leaks, spills, or precipitation until the collected material is detected and removed;

(2) The base shall be sloped or the containment system shall be otherwise designed and operated to drain and remove liquids resulting from leaks, spills, or precipitation, unless the containers are elevated or are otherwise protected from contact with accumulated liquids and precipitation;

(3) The containment system shall have sufficient capacity to contain precipitation from, at least a twenty-four (24) hour, twenty-five (25) year storm plus ten percent (10%) of the aggregate volume of all containers or the volume of the largest container, whichever is greater plus a freeboard of at least three (3) inches. Containers that are not used to store chemicals in a liquid form need not be considered in this determination;

(4) Stormwater runoff from adjacent areas shall be prevented from flowing into the containment system;

(5) Spilled or leaked waste and accumulated precipitation shall be removed from the sump or collection area in as timely a manner as is necessary to prevent overflow of the collection system. Unless otherwise approved by the Administrator, all chemicals or wastes discharged within the collection area shall be disposed of appropriately and not discharged to the sewerage system or the ground.

(d) The user shall submit to the Administrator a written statement, signed by a professional civil engineer registered in California, indicating that the containment system is suitably designed to achieve the requirements of this section.

(e) Construction shall be completed within a time period established in a compliance schedule.

(§ 3, Ord. 2755, eff. April 4, 2002)