Users must provide wastewater treatment as necessary to comply with this chapter and to achieve compliance with all Categorical Pretreatment Standards, local limits, and the prohibitions set out in Section 13.40.060 of this chapter within the time limitations specified by EPA, the State, or the pretreatment coordinator, whichever is more stringent. Any facilities necessary for compliance must be provided, operated, and maintained at the user's expense. Detailed plans describing such facilities and operating procedures must be submitted to the pretreatment coordinator for review, and must be acceptable to the pretreatment coordinator before those facilities are constructed. The review of plans and operating procedures does not relieve the user from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to the city under the provisions of this chapter.
(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
A. 
Whenever necessary in his or her judgment, the pretreatment coordinator 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-waste streams from industrial-waste streams, and impose any other conditions that may be necessary to protect the POTW and ensure the user's compliance with the requirements of this chapter.
B. 
The pretreatment coordinator may require any person discharging into the POTW 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 or a general permit may be issued for the purpose of flow equalization.
C. 
Grease, oil, and sand interceptors must be provided when, in the opinion of the pretreatment coordinator, any or all are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand; except that such interceptors shall not be required for residential users. All interception units must be of a type and capacity approved by the pretreatment coordinator and must be so located to be easily accessible for cleaning and inspection. These interceptors must be inspected, cleaned, and repaired by the user at user's expense.
D. 
The pretreatment coordinator may require users with the potential to discharge flammable substances to install and maintain an approved combustible gas detection meter.
(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
The pretreatment coordinator must evaluate whether each significant industrial user needs an accidental discharge or slug discharge control plan or other action to control slug discharges. The pretreatment coordinator may require any user to develop, submit for approval, and implement such a plan or take such other action that may be necessary to control slug discharges. Alternatively, the pretreatment coordinator may develop such a plan for any user. An accidental discharge or slug discharge control plan must include, at a minimum, the following:
A. 
Description of discharge practices, including nonroutine batch discharges;
B. 
Description of stored chemicals;
C. 
Procedures for immediately notifying the pretreatment coordinator of any accidental or slug discharge, as required by Section 13.40.370 of this chapter; and
D. 
Procedures to prevent adverse impact from any accidental or slug discharge.
The procedures to be described include, but are not limited to, inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant site runoff, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants, including solvents, and/or measures and equipment for emergency response.
(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
Septic-tank waste may be introduced into the POTW only at locations designated by the pretreatment coordinator, and only at times as are established by the pretreatment coordinator. Septic waste must not violate Article 2 or any other requirements established by the city. The pretreatment coordinator may require septic-tank-waste haulers to obtain individual wastewater discharge permits or general permits or deny septage receiving at any time for any reasonable cause.
The pretreatment coordinator may require haulers of industrial waste to obtain individual wastewater discharge permits or general permits. The pretreatment coordinator may require generators of hauled industrial waste to obtain individual wastewater discharge permits or general permits. The pretreatment coordinator in his or her discretion also may prohibit the disposal of hauled industrial waste. The discharge of hauled industrial waste is subject to all other requirements of this chapter.
Industrial waste haulers may discharge loads only at locations designated by the pretreatment coordinator. No load may be discharged without prior consent of the pretreatment coordinator. The pretreatment coordinator may collect samples of each hauled load to ensure compliance with applicable Standards. The pretreatment coordinator may require the industrial waste hauler to provide a waste analysis of any load prior to discharge.
Industrial waste haulers must provide a waste-tracking manifest for every load. This manifest must include, at a minimum, the name and address of the industrial waste hauler, permit number, truck identification, names and addresses of sources of waste, and volume and characteristics of waste. The form shall identify the type of industry, known or suspected waste constituents, and whether any wastes are RCRA hazardous wastes.
(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
A. 
Interceptors. Grease, oil and sand interceptors must be provided when, in the opinion of the public works director or the pretreatment coordinator. They are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand; except that such interceptors are not required for residential users. All interception units shall be of a type and capacity approved by the public works director or pretreatment coordinator and must be located to be easily accessible for cleaning and inspection. All interception units must be installed in accordance with the provisions of this chapter. These interceptors must be inspected, cleaned, and repaired regularly, as needed, by the owner at his or her sole expense. New and existing users that are determined by the public works director or pretreatment coordinator to have a reasonable potential to adversely impact the POTW must install a grease, oil or sand interceptor.
1. 
Users that are required to have a grease interceptor may be required to connect fixtures or drains that have a reasonable potential to allow fats, oils, and grease to be discharged to the POTW to an appropriately sized grease interceptor.
2. 
Users with garbage grinders must discharge the garbage grinder to a grease interceptor with a minimum capacity of one thousand gallons or remove the garbage grinder.
3. 
Users with dishwashers must discharge the dishwasher directly to the POTW or to a grease interceptor with a minimum capacity of seven hundred fifty gallons.
4. 
Accumulated grease and sediment must be removed as required. At a minimum gravity grease interceptors and grease traps must be cleaned when the combined depth of sediment and grease equals or exceeds twenty-five percent of the total depth of the sediment, water, and grease. For multiple chambered interceptors the measurements of sediment and grease are to be performed in the final interceptor chamber prior to discharge. All other grease interceptors must be maintained in accordance with the manufacturer's specifications.
5. 
Grease interceptors must be kept free of non-food waste including, but not limited to, grit, rocks, gravel, sand, eating utensils, cigarettes, trash, towels, and rags.
6. 
The addition of chemicals, enzymes, emulsifiers, live bacteria or other grease cutters or additives used for purposes of grease reduction to a grease interceptor is specifically prohibited.
7. 
If the public works director or pretreatment coordinator determines that a grease interceptor is not being adequately cleaned or maintained, a correction notice may be issued requiring the deficiency be corrected within seven working days. Maintenance programs including BMPs and defined cleaning frequencies may be mandated. Users that fail to adhere to a maintenance program may be required to install additional pretreatment devices.
8. 
The city will develop and implement a fats, oils, and grease policy.
B. 
Time of Compliance. All commercial facilities and food establishments described in this section are required to install a sand and/or grease interceptor or grease trap within the sixty-day period after the first occurrence of any of the following events:
1. 
Transfer of any ownership or interest in the commercial facility;
2. 
The issuance by the county of any building permit for the construction, reconstruction or related work to be performed on the premises costing more than five thousand dollars;
3. 
The backup or discharge of raw sewage on or from the premises due to grease build up in their service lateral; or within
4. 
Ninety days after receiving written notice from the public works director or pretreatment coordinator of the necessity for installation of such facilities.
C. 
Monitoring and Reporting. All establishments having a grease trap or interceptor must maintain and clean this unit as recommended by the manufacturer. Each grease trap or interceptor must be regularly maintained by the proprietor or property owner and records kept at the site for inspection by the city. Maintenance will vary depending upon the size of the unit and grease loading. The property owner or proprietor must send a copy of the maintenance records to the city annually from the time of installation or some other agreed upon date by the city. At no time may the unit be allowed to become clogged with grease so as to create damage to the city collection or treatment facilities. The proprietor must develop a cleaning schedule sufficient to keep the unit functioning properly. Records of grease disposal to a collection agent must be made available to city personnel upon request.
D. 
Responsibility of Tenants. Where an owner of property lets premises to any other person as a tenant, if either the owner or the tenant is an industrial user, either or both may be held responsible for compliance with the provisions of this chapter. This provision is enforceable against the either or both the owner, tenant or both, without regard to any contractual arrangements as between the owner and tenant.
E. 
Pretreatment Charges and Fees. The city council may adopt reasonable charges and fees for reimbursement of costs of setting up and operating the city's pretreatment program which may include:
1. 
Fees for wastewater discharge permit applications including the cost of processing such applications.
2. 
Fees for monitoring, inspection, and surveillance procedures including the cost of collection and analyzing an industrial user's discharge, and reviewing monitoring reports submitted by the users.
3. 
Fees for reviewing and responding to accidental discharge procedures and construction.
4. 
Fees for filing appeals.
5. 
Other fees that the city finds to be necessary to carry out the requirements contained in this section. These fees relate solely to the matters covered by this chapter and are separate from all other fees, finest and penalties chargeable by the city.
(Ord. 757 § 3, 2010; Ord. 767 § 3, 2012; Ord. 816 § 4, 2019)