(1) 
General Prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which causes pass through or interference. These general prohibitions apply to all users of the POTW whether or not they are subject to categorical pretreatment standards or any other national, state, or local pretreatment standards or requirements.
(2) 
Specific Prohibitions. No user shall introduce or cause to be introduced into the POTW the following pollutants, substances, or wastewater:
(a) 
Pollutants which create a fire or explosive hazard in the POTW, including, but not limited to, wastestreams with a closed-cup flashpoint of less than 140 degrees Fahrenheit (60 degrees centigrade) using the test methods specified in 40 CFR 261.21;
(b) 
Wastewater having a pH less than 5.5 or more than 10.0, or otherwise causing corrosive structural damage to the POTW or equipment;
(c) 
Solid or viscous substances in amounts which will cause obstruction of the flow in the POTW resulting in interference but in no case solids greater than one-quarter inch;
(d) 
Pollutants, including oxygen-demanding pollutants (BOD, COD, 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 POTW;
(e) 
Wastewater having a temperature 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 (40 degrees centigrade) unless the director, upon the request of the user, approves alternate temperature limits. In no case shall wastewater having a temperature greater than 150 degrees Fahrenheit be discharged to the collection system;
(f) 
Petroleum oil, nonbiodegradable cutting oil, solvents, or products of mineral oil origin, in amounts that will cause interference or pass through;
(g) 
Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems;
(h) 
Trucked or hauled pollutants, including sanitary wastes and grease wastes, unless authorized by the director;
(i) 
Noxious or malodorous liquids, gases, solids, or other wastewater which, either singly or by interaction with other wastes, are sufficient to create a public nuisance or a hazard to life, or to prevent entry into the sewers for maintenance or repair;
(j) 
Wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently imparts color to the treatment plant's effluent, thereby violating the city's NPDES authorization. Color (in combination with turbidity) shall not cause the treatment plant effluent to reduce the depth of the compensation point for photosynthetic activity by more than 10 percent from the seasonably established norm for aquatic life;
(k) 
Wastewater containing any radioactive wastes or isotopes except as specifically approved by the director in compliance with applicable state or federal regulations;
(l) 
Storm water, surface water, ground water, artesian well water, roof runoff, subsurface drainage, swimming pool drainage, condensate, deionized water, noncontact cooling water, and unpolluted wastewater, unless specifically authorized by the director;
(m) 
Any sludges, screenings, or other residues from the pretreatment of industrial or commercial wastes or from industrial or commercial processes, except as authorized by the director;
(n) 
Medical wastes, except as specifically authorized by the director;
(o) 
Wastewater causing, alone or in conjunction with other sources, the treatment plant's effluent to fail a toxicity test;
(p) 
Detergents, surface-active agents, or other substances which may cause excessive foaming in the POTW;
(q) 
Any liquid, solids, or gases which by reason of their nature or quantity are, or may be, sufficient either alone or by interaction with other substances to cause fire or explosion or be injurious in any other way to the POTW or to the operation of the POTW. At no time shall two successive readings on an explosion meter, at the point of discharge into the system (or at any point in the system), be more than five percent nor any single reading over 10 percent of the lower explosive limit (LEL) of the meter;
(r) 
Animal guts or tissues, paunch manure, bones, hair, hides or fleshings, entrails, whole blood, feathers, ashes, cinders, sand, spent lime, stone or marble dusts, metal, glass, straw, shavings, grass clippings, rags, spent grains, spent hops, waste paper, styrofoam, wood, plastics, gas, tar asphalt residues, residues from refining or processing of fuel or lubricating oil, mud, or glass grinding or polishing wastes;
(s) 
Any substance which will cause the POTW to violate its NPDES and/or other disposal system permits;
(t) 
Any wastewater, which in the opinion of the director can cause harm either to the sewers, sewage treatment process, or equipment; have an adverse effect on the receiving stream; or can otherwise endanger life, limb, public property, or constitute a nuisance, unless allowed under special agreement by the director (except that no special waiver shall be given from categorical pretreatment standards);
(u) 
The contents of any tank or other vessel owned or used by any person in the business of collecting or pumping sewage, effluent, septage, or other wastewater;
(v) 
Any hazardous or dangerous wastes as defined in rules published by the state of Washington (Chapter 173-303 WAC) and/or in EPA rules 40 CFR Part 261;
(w) 
Persistent pesticides and/or pesticides regulated by the Federal Insecticide Fungicide Rodenticide Act (FIFRA);
(x) 
Any slug load;
(y) 
Any substance which may cause the POTW's effluent or treatment residues, sludges, or scums to be unsuitable for reclamation and reuse, or to interfere with the reclamation process;
(z) 
Fats, oils and grease in amounts that may cause obstructions or maintenance problems in the collection/conveyance system, or interference in the POTW;
(aa) 
Waste antifreeze (ethylene glycol, etc.);
(bb) 
Flow from an individual industrial facility in excess of 120,000 gpd without written permission of the director;
(cc) 
BOD or TSS from an individual industrial or commercial facility in excess of 750 mg/l measured at the point of connection with the city system.
Pollutants, substances, or wastewater prohibited by this section shall not be processed or stored in such a manner that they could be discharged to the POTW.
(Ord. 2072 § 2.1, 1996)
State requirements and limitations on discharges to the POTW shall be met by all users which are subject to such standards in any instance in which they are more stringent than federal requirements and limitations, or those in this chapter or other applicable ordinances.
(Ord. 2072 § 2.3, 1996)
(1) 
The following discharge limitations are established to prevent site-specific treatment plant and environmental problems. The local discharge limitations under this section are in force for all nondomestic users of the city's wastewater treatment plant. Local discharge limitations for the city are established using the allowable headworks loading method in accordance with the following EPA documents:
(a) 
Guidance Manual on the Development and Implementation of Local Discharge Limitations under the Pretreatment Program (1987);
(b) 
Supplemental Manual on the Development and Implementation of Local Discharge Limitations Under the Pretreatment Program (1991);
(c) 
PRELIM Version 4.0 Users Guide (1991).
(2) 
The following local discharge limitations are based on a technical analysis of the total loading of pollutants to the river watershed and the requirements of the Washington State Water Quality Standards (Chapter 173-201A WAC). Biosolids protection criteria in accordance with 40 CFR Part 503 final rule signed November 25, 1993. The technical report used in the derivation of the local discharge limitations as established herein are available from the director. Wastewater containing total recoverable metals in concentrations exceeding these local discharge limitations shall not be discharged to the city's collection system or treatment works.
LOCAL DISCHARGE LIMITATIONS
24-Hour Flow Proportional
Pollutant
Composite Sample
Arsenic
0.71 mg/l
Cadmium
0.70 mg/l
Chromium
1.47 mg/l
Copper
0.50 mg/l
Lead
0.52 mg/l
Mercury
0.10 mg/l
Nickel
1.48 mg/l
Zinc
1.67 mg/l
Cyanide
TBD
Silver
0.47 mg/l
TBD = To be determined upon completion of testing and analysis.
(3) 
Local discharge limitations apply at the point where wastewater is discharged to the collection system for all users. Local discharge limitations are in force at all monitoring facilities required under MMC § 14.20.550. The director, at his option, may elect to have local discharge limitations apply after pretreatment and prior to mixing with other wastewater generated within an individual industrial facility.
(4) 
Local discharge limitations are expressed in units of milligrams of contaminant per liter of solution. The total mass or concentration of the constituent ion shall be limited under these maximum allowable discharge limitations without regard to oxidation state or chelation status. Where the user is subject to a categorical pretreatment standard or a specific discharge limitation under a state waste discharge authorization, the more stringent limit or pretreatment standard shall apply.
(Ord. 2072 § 2.4, 1996)
(1) 
Persons seeking to discharge petroleum contaminated ground water to the collection system or treatment works shall obtain a state waste discharge permit for the proposed action in accordance with Chapter 173-216 WAC. The city reserves the right to impose more stringent requirements on the proposed discharge. Prior to discharging petroleum contaminated ground water to the collection system or treatment works, a written discharge authorization shall be obtained from the city of Marysville in accordance with Article III of this chapter.
(2) 
No petroleum contaminated ground water shall be discharged to the city's collection system or treatment plant except in accordance with a written discharge authorization from the director. Persons requesting authorization to discharge petroleum contaminated ground water to the POTW shall accompany the written request with a detailed engineering report signed by a professional engineer licensed in the state of Washington. The report shall detail the pretreatment technology proposed for the subject discharge. In addition, detailed information shall be submitted on the rate, duration and volume of flow proposed for treatment at the POTW. User charges for treatment of petroleum contaminated ground water shall be determined by the director. The director, at his option, may refuse to authorize discharge of any or all petroleum contaminated ground water.
(Ord. 2072 § 2.5, 1996)
The city reserves the right to establish, by ordinance or in an amended application, more stringent standards or requirements on discharges to the POTW.
(Ord. 2072 § 2.6, 1996)
(1) 
The city may enter into agreements with significant industrial users to accept conventional pollutants compatible with the treatment system at concentrations greater than those typical of domestic wastewater. Users with BOD or TSS levels higher than 220 mg/l must have a written agreement with the city before commencing discharge. Within such agreements, the city may establish terms of the user's discharge to the POTW, including maximum flow rates. The city may also establish fees to recover costs associated with treating such wastes and the cost of monitoring to verify operation in accordance with agreements.
(2) 
The adoption of fees shall be in accordance with MMC § 14.20.800. In no case shall the discharge of conventional pollutants be allowed where the strength of such pollutants exceeds 750 mg/l BOD or 750 mg/l TSS.
(3) 
The city may also establish user group classifications for the purpose of establishing an equitable rate structure. User groupings will be based on wastewater strength measured by the conventional tests for BOD and TSS. Nondomestic users will be assigned to user groups in accordance with a standard schedule developed by the city based on typical waste strength for BOD and TSS. In no case shall a user group be established where BOD and/or TSS exceeds 750 mg/l.
(4) 
Nondomestic users may be assigned to user groups in accordance with the determination of the director. These nondomestic users may discharge wastewater to the treatment works without a written agreement. However, the user fees applicable to the assigned user group classification must be paid in accordance with the current rate structure adopted by the city. In no case shall the conventional waste strength of any user group classification exceed 750 mg/l BOD or 750 mg/l TSS.
(5) 
Users discharging or intending to discharge pollutants other than BOD and TSS, and claiming compatibility, must prove to the satisfaction of the director that such pollutants are compatible with the POTW. These cases will be handled on a case-by-case basis by the director. Written approval is required prior to introducing such wastes into the treatment works. Appropriate fees may apply in accordance with the determination of the director.
(6) 
In no case will a special agreement waive compliance with state or federal pretreatment requirements or standards, including categorical standards.
(Ord. 2072 § 2.7, 1996)
User shall not 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 an applicable pretreatment standard or requirement unless expressly authorized by an applicable pretreatment standard or requirement. The director may impose mass limitations on users which he believes may be using dilution to meet applicable pretreatment standards or requirements, or in other cases when the imposition of mass limitations is appropriate.
(Ord. 2072 § 2.8, 1996)
(1) 
Users shall provide all known, available, and reasonable methods of prevention, control, and treatment (AKART) as required to comply with this chapter and shall achieve compliance with all applicable pretreatment standards and requirements set out in this chapter within the time limitations specified by the EPA, the state, or the director, whichever is more stringent. Users other than significant industrial users (SIUs), subject to this chapter are as follows:
(a) 
Grease Control/Pretreatment. Measures to control, recycle, remove or pretreat for grease that are applicable to food service establishments, are subject to MMC § 14.20.150 for fats, oils, and grease (FOG) control.
(b) 
Automatic and coin-operated laundries, car washes, filling stations, commercial garages or similar businesses having any type of washing facilities (including pressure washing and steam cleaning) or any other dischargers producing grit, sand, silt, oils, lint, or other materials which have the potential of causing partial or complete obstruction of the building site sewer or other areas in the POTW shall install approved interceptors, oil/water separators, coalescing plate treatment, or settling tanks in accordance with specifications adopted by the city of Marysville such that excessive amounts of oil, sand, silt, and inert solids are effectively prevented from entering the POTW.
(c) 
Dental facilities or any other dischargers with the potential to discharge mercury from amalgam shall install an approved amalgam separator or shall demonstrate the lack of need for an amalgam separator in accordance with specifications adopted by the city of Marysville such that mercury is effectively prevented from entering the POTW.
(d) 
Any other commercial user determined to discharge or to have the potential to discharge waste that contains constituents that may impact the function of POTW as determined by the city.
(2) 
Any facilities required to pretreat wastewater to a level acceptable to the city shall be provided, operated, and maintained at the user's expense.
(3) 
In addition, the director may establish best management practices (BMPs) for particular groups of users. These BMPs may include, but are not limited to, types or methods of pretreatment technology to be used, methods of source control, minimum maintenance requirements, dragout prevention practices, good housekeeping, spill prevention practices, or other requirements as deemed necessary.
(4) 
When required by the director, an engineering report, including detailed plans showing the pretreatment facilities and operating procedures, shall be submitted to the city for review, and shall be acceptable to the city before construction of the facility. The review of such plans and operating procedures will in no way relieve the user from the responsibility of modifying the facility as necessary to produce an acceptable discharge to the city under the provisions of this chapter.
(5) 
Within 90 days after the completion of the wastewater pretreatment facility, the discharger shall furnish as-built drawings and its operations and maintenance procedures. Any subsequent significant changes in the pretreatment facility or method of operation shall be reported to and approved by the director prior to the initiation of the changes.
(6) 
New sources and new users determined to be significant industrial users (SIUs) must have pretreatment facilities installed and operating prior to discharge, if required.
(7) 
All facilities required to pretreat wastewater to a level acceptable to the city shall be kept in continuous operation at all times, and shall be maintained to provide efficient operation. Cleaning must be performed by a service contractor qualified to perform such cleaning, or in a manner approved by the director. All material removed shall be disposed of in accordance with all state and federal regulations. Records and certification of maintenance shall be made readily available to the director for review and inspection and must be maintained for a minimum of three years unless otherwise outlined in MMC § 14.20.150.
(8) 
If a failure to maintain facilities required to pretreat wastewater to a level acceptable to the city results in partial or complete blockage of the building sewer, private sewer system discharging to the city sewer system, or other parts of the city sewer system, or adversely affects the treatment or transmission capabilities of the POTW, or requires excessive maintenance by the city, or poses a possible health hazard, the discharger responsible for the facilities shall be subject to the remedies imposed by this chapter including cost recovery, enforcement and penalties.
(Ord. 2072 § 2.9, 1996; Ord. 3222 § 1 (Exh. A), 2022)
See MMC § 14.20.390 for compliance schedule requirements.
(1) 
Compliance by existing sources (categorical users) covered by categorical pretreatment standards shall be as specified in the appropriate standard. The city shall establish a final compliance deadline date for any categorical user when the local limits for said user are more restrictive than EPA's categorical pretreatment standards. The city may establish a final compliance deadline date for any existing user not covered by categorical pretreatment standards.
(2) 
New source dischargers, and "new users" that are determined to be significant industrial users (SIUs), are required to comply with applicable pretreatment standards within the shortest feasible time as determined by the director (not to exceed 90 days from the beginning of discharge). New sources, and "new users" that are determined to be significant industrial users (SIUs), shall install and have in operating condition and shall "start-up" all pollution control equipment required to meet applicable pretreatment standards before beginning to discharge.
(3) 
Any wastewater discharge authorization issued to a categorical user shall not contain a compliance date beyond any deadline date established in EPA's categorical pretreatment standards.
(4) 
Any other existing user that is considered to be an SIU, or a categorical user that must comply with a more stringent local limit, which is in noncompliance with any local limits shall be provided with a compliance schedule to insure compliance within the shortest time feasible. A compliance schedule may be included in the subject user's discharge authorization. In no case shall compliance with the city's local discharge limitation exceed two years from the date of adoption of a said limit by the city.
(5) 
All existing commercial and industrial users not determined by the director to be significant industrial users (SIUs) shall have one year to comply with the requirements of this chapter. Users not considered as significant industrial users may request in writing an extension of the requirement for compliance. Such extensions will be authorized by the director only for good cause. An extension of the compliance deadline is valid only upon receiving written authorization from the director.
(6) 
A specific compliance schedule for pretreatment facilities for sources of fats, oils and grease is included in MMC § 14.20.150.
(7) 
Contracts between the city of Marysville and any user or sewer utility customer that are in existence on the effective date of the ordinance codified in this chapter shall remain in full force and effect until the termination date of such contract. Each section and subsection of this chapter that is not in direct conflict with an existing contract shall become in effect immediately upon the effective date of the ordinance codified in this chapter. Application and enforcement of any section or subsection that is in direct conflict with existing contracts shall be deferred for the duration of the existing contract. Where specific requirements of this chapter are not specifically prohibited or addressed under the requirements of an existing contract, the presumption shall be that an existing contract allows imposition and enforcement of the specific requirements of this chapter. Where an existing contract is in conflict with any state or federal regulation or standard, the subject contract shall be renegotiated so that compliance with the state and federal requirements is achieved. Contracts not in conformance with this chapter or any state or federal regulation or standard shall not be renewed without modifications to bring such contracts into compliance therewith.
(Ord. 2072 § 2.10, 1996)
(1) 
General.
(a) 
It shall be unlawful for any food service establishment or other person to discharge, or cause to be discharged, processing wastewater to the collection system or POTW which contains oils, greases, solids, or liquids sufficient to cause obstruction or otherwise interfere with the proper operations of the POTW or collection system.
(b) 
It shall also be unlawful for any food service establishment or other person to dispose of any grease waste or processing waste containing oils, greases, solids, or liquids and discharge said waste into any drainage piping, public or private sanitary sewer or storm drainage system, sufficient to interfere with the proper operation of that system, or to discharge said waste to any land, street, public way, river, stream, or other waterway.
(c) 
It shall further be unlawful for any person to allow liquid waste to accumulate on his property or in his possession which is injurious to public health or emits offensive odors.
(d) 
It shall be unlawful for any person to utilize any chemical emulsifying agent for the purpose of hindering or eliminating the interception of fats or grease prior to entering the city's wastewater collection system.
(e) 
Food service establishments and other facilities described in subsection (3) of this section discharging wastewater shall install, operate, clean, and maintain a sufficiently sized oil and grease, water and solids separator (herein called grease interceptor) necessary to achieve compliance with requirements set forth under this provision.
(f) 
(i) 
Oil or grease of petroleum or mineral origin shall not be discharged to the city's sewer system at a concentration in excess of 100 mg/l.
(ii) 
Fats, oil or grease of animal or vegetable origin shall not be discharged to the city's sewer system at a concentration in excess of 100 mg/l.
(g) 
The concentration of oils and grease shall be measured in samples taken from the sampling chamber following pretreatment in an approved grease interceptor in accordance with the requirements of this section. Oil and grease concentration shall be measured using the partitiongravimetric method or the partition-infrared method outlined in the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association.
(2) 
Waste Discharge Requirements.
(a) 
Waste discharge from fixtures and equipment in establishments that may contain grease, including but not limited to scullery sinks, pot and pan sinks, vent hood drains, dishwashing machines, soup kettles and floor drains located in areas where grease containing materials may exist, may be drained into the sanitary sewer only after such discharges are pretreated in an approved grease waste interceptor in accordance with this section.
(b) 
No sanitary wastes from toilets, urinals, or other similar fixtures may be discharged through any grease waste interceptor. All wastes shall enter the interceptor through the inlet pipe only. The wholesale shredding of food wastes into any fixture which discharges to a grease waste interceptor is prohibited.
(3) 
Pretreatment Required. All FSEs and NFDs shall have an adequate grease removal system installed and exercise proper kitchen best management practices to ensure that excess concentrations of FOG are not discharged to the POTW.
(4) 
Design. GRSs shall be designed, sized, located and constructed in accordance with the city's engineering design and development standards (EDDS) or as provided by the director or designee.
(5) 
New Construction. All new construction FSEs and NFDs shall submit kitchen fixture plan views and kitchen waste plans showing all potential grease-discharging lines, all GRSs, and connecting piping to the director or his designee for approval prior to construction. The plumbing shall be installed in accordance with the approved plans. Failure to submit plans or construct in accordance with approved plans is a violation of this chapter.
(a) 
All new single-occupancy food service establishment buildings shall be constructed with properly sized interceptor-style grease removal systems. Where bona-fide space or gradient limitations make the use of an interceptor-style GRS impractical, and with prior approval of the director, an FSE may install properly sized trap-style GRSs. All kitchen drains and any other drains that may carry grease-laden waste shall be connected to this GRS (except the dishwasher if a trap-style GRS is installed). If a trap-style GRS is installed, the kitchen may not have a garbage disposal/garbage grinder/macerator or similar unit installed.
(b) 
All new construction multi-tenant buildings (strip centers) shall include a separate waste line for all leasable spaces that discharges to a common 2,000-gallon or larger interceptor. This waste line shall be permanently marked to identify it as required by the director. When a space is leased, sold, or rented to an FSE or NFD, all kitchen drains and any other drains that may carry grease-laden waste shall be connected to this waste line; no domestic sewage may be connected to this line. The property owner shall be responsible for proper maintenance of this interceptor in accordance with the provisions of this chapter.
(c) 
All new single-occupancy non-FSE FOG discharger buildings shall install a properly sized GRS. Interceptor-style GRSs are recommended, but trap-style GRSs are permissible. All kitchen drains and any other drains that may carry grease-laden waste shall be connected to this GRS (except the dishwasher if a trap-style GRS is installed). If a trap-style GRS is installed, the kitchen may not have a garbage disposal/garbage grinder/macerator or similar unit installed.
(d) 
Any FSE or NFD undertaking a substantial remodel or tenant improvements will be considered to be new construction for the purposes of this chapter.
(6) 
Existing Dischargers of Grease Wastes. Any existing FSE or NFD without a functional GRS shall be required to install one. The type of GRS required will be determined by the director, taking into account cost, available space and gradient, history of impacts and maintenance to the sewer collection system, and any other pertinent information. Where feasible, all kitchen drains and any other drains that may carry grease-laden waste shall be connected to this GRS (except the dishwasher if a trap-style GRS is installed). If a trap-style GRS is installed, the kitchen may not have a garbage disposal/garbage grinder/macerator or similar unit installed.
(7) 
Source Control.
(a) 
All food establishments which deep fry, pan fry or otherwise generate liquid or semisolid restaurant grease shall maintain a container on site for containment of liquid and semisolid grease wastes. This liquid or semisolid grease shall be transported to an approved rendering plant.
(b) 
In no case shall free liquid grease be disposed of directly into fixtures which are connected to the sewer system.
(c) 
Unused butter, margarine, or other solid grease products shall not be discharged to the sewer system through garbage disposals or other means. No exceptions to the prohibitions of this subsection are allowed for fixtures which discharge to the sewer system through an approved grease interceptor.
(d) 
Hauling and recycling of restaurant grease shall be accomplished at a facility holding a state rendering permit.
(8) 
Additives.
(a) 
The use of any additive, such as enzymes, chemicals, or bacteria, as a substitute for grease interceptors or the maintenance of grease interceptors is prohibited.
(b) 
The use of additives as a supplement to grease interceptors may be authorized by the director. The director will provide a specific written protocol for testing of additives proposed for use as supplements for grease interceptor or sewer line maintenance. Completion of the testing protocol to the satisfaction of the director at the expense of the grease generator is required prior to use of any additive.
(c) 
A written authorization from the director shall be obtained after completion of the testing protocol to verify that no objection is taken to the use of the proposed additive. In no case shall any additive which emulsifies fats, oils or grease be used. The city will provide a written test procedure for determination of emulsifying agents.
(9) 
Grease Removal System Maintenance.
(a) 
Each facility required to install and maintain a GRS under this chapter shall provide regular maintenance of said GRS to the satisfaction of the director in an accordance with the requirements set forth in this chapter.
(b) 
Trap style GRSs shall be inspected and cleaned no less than once per month. Trap-style GRSs may be maintained by the FSE or NFD. When cleaned, the trap must have surface grease and oil removed, settled solids removed, all sides scraped, removable parts removed and cleaned, be inspected for damage and corrosion, and be properly reassembled. If repairs are required, they shall be performed within seven days. Maintenance and cleaning records must be kept on site and readily accessible for a period of 12 months.
(c) 
The material that is removed in the process of cleaning a GRS shall not be discharged back into the GRS, any part of the POTW, any private sewer, any drainage piping, or storm sewer system. All materials removed shall be handled and disposed of in accordance with federal, state, county and local laws, rules and regulations.
(d) 
In addition to the maintenance required above, automatic grease removal systems shall be maintained in accordance with the manufacturers' guidelines.
(e) 
Each person who removes grease waste from the grease interceptor style GRS shall, to the extent technically and mechanically possible, remove the entire content of the grease interceptor.
(i) 
Pumping. All grease interceptors shall be maintained by the user at the user's expense. Maintenance shall include the complete removal of all contents including floating materials, wastewater, and bottom sludges and solids. Decanting or discharging of removed waste back into the interceptor from which the waste was removed or any other grease interceptor for the purpose of reducing the volume to be hauled is prohibited.
(ii) 
Grease Removal and Grease Interceptor Pumping Frequency. All grease interceptors must be pumped out completely once every three months, or more frequently, as required by the director. Exception to this minimum frequency of pumping may be made with special written approval from the director for generators of small quantities of grease wastes. In no case shall the frequency of pumping be less than once every six months.
(iii) 
Disposal of Grease Interceptor Pumpage. All waste removed from each grease interceptor must be disposed of at a facility permitted by the health department in the county in which the disposal facility is located. Under no circumstances shall the pumpage be returned to any POTW or any sewer.
(iv) 
Maintenance Requirements. Each person who engages in grease waste handling shall maintain all vehicles, hoses, pumps, tanks, tools, and equipment associated with grease waste handling in good repair, free of leaks, and in a clean and sanitary condition. All hoses and valves on grease waste handling vehicles or tanks shall be tightly capped or plugged after each use to prevent leakage, dripping, spilling or other discharge of grease wastes and any public or private property.
(v) 
Maintenance Records. A log indicating each pumping of an interceptor for the previous 12 months shall be maintained by each food service establishment. This log shall include date, time, amount pumped, hauler and disposal site and shall be kept in a conspicuous location for inspection by health department or POTW personnel.
(vi) 
Maintenance Reporting. The information required in the maintenance log shall be submitted to the control authority annually or as specified by POTW personnel. The reporting period is January 1st through December 31st of each year. The report shall be submitted within 30 days after the end of the reporting period.
(vii) 
Hazardous Material Prohibited. No person shall collect, transport, or handle any hazardous material in any vehicle used for grease waste handling.
(10) 
Repealed by Ord. 3222.
(11) 
Inspection and Entry.
(a) 
Any and all premises serviced by a grease interceptor and any and all records pertaining thereto shall be subject to inspection by the director for the purpose of determining compliance with this chapter.
(b) 
All GRSs shall be made accessible for inspection.
(c) 
Any and all premises and vehicles used by any person performing grease waste handling and any and all records of such person which relate to such person's grease waste handling activities shall be subject to inspection by the director for the purpose of determining compliance with this chapter.
(Ord. 2072 § 2.11, 1996; Ord. 3222 § 1 (Exh. A), 2022)
(1) 
Whenever deemed necessary, the director 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 may be necessary to protect the POTW and determine the user's compliance with the requirements of this chapter.
(2) 
When determined necessary by the director, each user discharging into the POTW shall install and maintain, on his property and at his expense, a suitable storage and flow-control facility to insure equalization of flow. The director may require the facility to be equipped with alarms and a rate of discharge controller, the regulation of which shall be determined by the director. A wastewater discharge authorization (DA) may be issued solely for flow equalization.
(3) 
Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
(4) 
When a new building is constructed without a tenant, and has any sewers which are intended to serve wastes other than sanitary or domestic waste, a multiple compartment interceptor approved by the director shall be installed.
(Ord. 2072 § 2.12, 1996)
Each discharger shall provide protection from accidental discharge of materials or substances prohibited or limited under this chapter into the municipal sewer system or into waters of the state. Where necessary, facilities to prevent accidental discharge of prohibited materials shall be provided and maintained at the discharger's cost and expense. Detailed plans showing facilities and operating procedures to provide this protection shall be submitted to the director for review, and shall be approved by the director before construction of the facility. Each discharger, where requested by the director, shall complete its plan and submit same to the director within 90 days of being notified by the director. No discharger who discharges to the municipal sewer system after the aforesaid date shall be permitted to introduce pollutants into the system until accidental discharge protection procedures have been approved by the director. Review and approval of such plans and operating procedures by the director shall not relieve the discharger from the responsibility to modify its facility as necessary to meet the requirements of this chapter.
(1) 
Any user required to develop and implement an accidental discharge/slug control plan shall submit a plan which addresses, at a minimum, the following:
(a) 
Description of discharge practices, including nonroutine batch discharges;
(b) 
Description and itemization of stored chemicals;
(c) 
Procedures for immediately notifying the POTW of any accidental or slug discharge. Such notification must also be given for any discharge which would violate any of the standards in MMC § 14.20.050 through § 14.20.080; and
(d) 
Procedures to prevent adverse impact from any accidental or slug discharge. Such procedures 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.
(2) 
Accidental Spill Prevention Plan (ASPP)/Slug Load Control Plan Format. All users required to develop and implement an ASPP/slug load plan shall provide the required plan in a specific format. The format to be used in the plan submittal is contained in Appendix 4 of the EPA Region X guidance manual entitled Guidance Manual for the Development of an Accidental Spill Prevention Program. The director will review each plan submittal for completeness. If the director identifies any deficiencies in the plan it will be returned with specific deficiencies identified. The plan shall be modified to address the deficiencies noted and resubmitted for approval. Resubmittal shall be accomplished within six weeks of the return of a deficient plan.
(3) 
Notification. Dischargers shall notify the director immediately upon the occurrence of a slug load or accidental discharge of substances prohibited by this chapter. Notification by telephone call shall be followed within five days by a written report containing the following information:
(a) 
Location of discharge;
(b) 
Date and time thereof;
(c) 
Type of waste;
(d) 
Concentration and volume;
(e) 
Corrective actions.
Any discharger who discharges a slug load of prohibited materials shall be liable for any expense, loss or damage to the municipal sewer system in addition to the amount of any fines imposed by the director on account thereof under the requirements of this chapter.
(4) 
Within five days following an accidental discharge, the user shall submit to the director a detailed written report describing the cause of the discharge and the measures to be taken by the user to prevent similar future occurrences. Such notification shall not relieve the user of any expense, loss, damage, or other liability which may be incurred as a result of damage to the POTW, fish kills, or any other damage to person or property; nor shall such notification relieve the user of any fines, civil penalties, or other liability which may be imposed by this chapter or other applicable law.
(5) 
Signs shall be permanently posted in conspicuous places on the user's premises advising employees whom to call in the event of a slug or accidental discharge. Employers shall instruct all employees who may cause or discover such a discharge with respect to emergency notification procedures.
(Ord. 2072 § 2.13, 1996)
(1) 
The director may require monitoring and periodic monitoring reports from any nondomestic discharger. Such monitoring will be performed at the expense of the discharger and in accordance with a schedule specified by the director. Such monitoring shall be required where the director determines that there is a reasonable possibility that the user may not be in compliance with this chapter. Monitoring and reporting requirements for users who are not considered as significant industrial users shall conform with MMC § 14.20.390(6), (7) and (8), and 14.20.470. Results of monitoring shall be forwarded to the director in accordance with the director's specifications.
(2) 
Recreational Vehicle (RV) Wastewater.
(a) 
Wastewater from individual recreational vehicles shall be discharged to the treatment works only at sites approved in writing by the director. RV wastewater may also be discharged to collection facilities designed for this use and owned and operated by the city of Marysville. The city may eliminate city-owned RV wastewater sites at any time for any reason.
(b) 
Commercial operators and all other persons seeking to develop, operate and own RV dump stations must obtain approval from the director in writing prior to construction and operation of such facilities. Persons operating RV dump sites at the time of adoption of the ordinance codified in this chapter shall make themselves known to the director within three months of adoption of the ordinance codified in this chapter and request permission to continue operation.
(c) 
The city may establish such fees as deemed necessary for operation of approved RV wastewater sites.
(Ord. 2072 § 2.15, 1996)
The use of garbage disposal units or garbage grinders for the wholesale disposal of garbage, paper products or styrofoam products to the sewer system is prohibited. The installation or use of garbage grinders/garbage disposal units with rated motor power greater than three-quarter horsepower is prohibited. All garbage grinder/garbage disposal units with motors greater than three-quarter horsepower at the time of adoption of the ordinance codified in this chapter shall be removed within six months of adoption of the ordinance codified in this chapter. More than one grinder/disposal unit per commercial/industrial connection shall require the approval of the director.
(Ord. 2072 § 2.16, 1996)
(1) 
Permit Requirements for Dangerous Waste Constituents. Users discharging a wastestream containing dangerous wastes as defined in Chapter 173-303 WAC (listed, characteristic, or criteria wastes) are required to comply with the following permit provisions:
(a) 
Obtain a written authorization to discharge the waste from the director, and either obtain specific authorization to discharge the waste in a state waste discharge permit issued by the Department of Ecology, or accurately describe the wastestream in a temporary permit obtained pursuant to RCW 90.48.165. The description shall include at least:
(i) 
The name of the dangerous waste as set forth in Chapter 173-303 WAC, and the dangerous waste number;
(ii) 
The mass of each constituent expected to be discharged;
(iii) 
The type of discharge (continuous, batch, or other).
(b) 
Compliance shall be obtained on the following schedule:
(i) 
Before discharge for new users;
(ii) 
Within 30 days after becoming aware of a discharge of dangerous wastes to the POTW for existing users; and
(iii) 
Within 90 days after final rules identifying additional dangerous wastes or new characteristics or criteria of dangerous waste are published for users discharging a newly listed dangerous waste.
(2) 
Requirements for Participation in Local Hazardous Waste Management Program. All commercial users of the treatment works owned and operated by the city of Marysville shall participate in the local hazardous waste management program for Snohomish County. All reasonable efforts shall be made to reduce and recycle waste liquids and small quantity wastes generated in the business environment. Disposal of small quantities of hazardous wastes to the sewer system and treatment works is prohibited. Small quantity generators (SQGs), as defined in Chapter 173-303 WAC, shall ensure delivery of all dangerous wastes to a permitted waste management facility, legitimate recycler, facility that beneficially uses or reuses it, a permitted municipal or industrial solid waste facility (with prior consent of operator) or in accordance with local moderate risk waste plans developed by Snohomish County.
(Ord. 2072 § 2.17, 1996)