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Charlotte, MI Code of Ordinances
CITY OF CHARLOTTE, MICHIGAN CODE OF ORDINANCES
CHARTER
CHAPTER 1: GENERAL PROVISIONS
CHAPTER 2: ADMINISTRATION
CHAPTERS 3-5: RESERVED
CHAPTER 6: ALCOHOLIC LIQUORS
CHAPTERS 7-9: RESERVED
CHAPTER 10: ANIMALS
CHAPTERS 11 - 13: RESERVED
CHAPTER 14: BUILDINGS AND BUILDING REGULATIONS
CHAPTER 15: BUSINESSES
CHAPTERS 16 - 17: RESERVED
CHAPTER 18: CABLE COMMUNICATIONS
CHAPTERS 19 - 21: RESERVED
CHAPTER 22: COMMUNITY DEVELOPMENT
CHAPTERS 23 - 25: RESERVED
CHAPTER 26: RESERVED
CHAPTERS 27 - 29: RESERVED
CHAPTER 30: FIRE PREVENTION AND PROTECTION
CHAPTER 31: RESERVED
CHAPTER 32: MUNICIPAL CIVIL INFRACTIONS
CHAPTER 33: RESERVED
CHAPTER 34: OFFENSES
CHAPTERS 35 - 37: RESERVED
CHAPTER 38: PARKS AND RECREATION
CHAPTERS 39 - 41: RESERVED
CHAPTER 42: PLANNING
CHAPTERS 43 - 45: RESERVED
CHAPTER 46: SOLICITORS AND CANVASSERS
CHAPTERS 47 - 49: RESERVED
CHAPTER 50: SOLID WASTE
CHAPTER 51: RESERVED
CHAPTER 52: PROPERTY MAINTENANCE AND NUISANCE ABATEMENT
CHAPTER 53: RESERVED
CHAPTER 54: SPECIAL ASSESSMENTS
CHAPTERS 55 - 57: RESERVED
CHAPTER 58: STREETS, SIDEWALKS, AND OTHER PUBLIC PLACES
CHAPTERS 59 - 61: RESERVED
CHAPTER 62: SUBDIVISION REGULATIONS
CHAPTER 63: RESERVED
CHAPTER 64: TAX EXEMPTION
CHAPTER 65: RESERVED
CHAPTER 66: TRAFFIC AND VEHICLES
CHAPTER 67: RESERVED
CHAPTER 68: UTILITIES
CHAPTER 69: RESERVED
CHAPTER 70: VEGETATION
CHAPTER 71: RESERVED
CHAPTER 72: MUNICIPAL AIRPORT
CHAPTER 73: RESERVED
CHAPTER 74: VEHICLES FOR HIRE
CHAPTERS 75 - 81: RESERVED
CHAPTER 82: ZONING
PARALLEL REFERENCES
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§§ 68-158 – 68-170 RESERVED.
DIVISION 4. PUBLIC SEWER USE
§ 68-171 STORMWATER, GROUNDWATER AND UNPOLLUTED WATER.
   (A)   No person shall discharge or cause to be discharged any stormwater, surface water, groundwater or roof water to any sanitary sewer.
   (B)   Stormwater, groundwater and all other unpolluted drainage shall be discharged into storm drains or to a natural outlet approved by the city. Industrial cooling water or unpolluted process waters may be discharged, upon application to and approval by the city, to a storm drain or natural outlet.
(1993 Code, § 68-171) (Ord. passed 1-22-2001; Ord. 2014-01, passed 1-27-2014)
§ 68-172 PROHIBITED DISCHARGES.
   The following discharges to the public sewer system shall be prohibited.
      (1)   Any liquid or vapor having a temperature higher than 150 degrees Fahrenheit or of a temperature which causes the influent to the treatment plant to exceed 104 degrees Fahrenheit, whichever is lower.
      (2)   Any gasoline, benzene, naphtha, fuel oil, petroleum oil, non-biodegradable cutting oil products or mineral oil in amounts that would cause interference or pass through, or other flammable or explosive liquid, solid or gas.
      (3)   Any garbage that has not been properly shredded.
      (4)   Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, woods, paunch manure or any other solid or viscous substance capable of causing obstruction to flow in sewers or other interference with the proper operation of the sewage works.
      (5)   Discharges greater than the following concentrations of specific pollutants:
Daily Maximum (24 hour composite) - unless otherwise specified below
Daily Maximum (24 hour composite) - unless otherwise specified below
BOD (biochemical oxygen demand
1600 mg/l
Total suspended solids
2200 mg/l
Total phosphorus
30 mg/l
Fats, total (grab)
250 mg/l*
Fats, non-polar (grab)
50 mg/l
Phosphorus
30 mg/l
Ammonia-N
22 mg/l
pH (grab)
Lower than 6.0 or higher than 9.0*
 
Inorganics
Inorganics
Aluminum
2.1 mg/l
Arsenic
0.26 mg/l
Beryllium
0.01 mg/l
Cadmium
0.032 mg/l
Chromium
1.2 mg/l
Copper
0.9 mg/l
Available cyanide1 (grab)
0.03 mg/l*
Lead
0.16 mg/l
Total mercury3
Non-detect
Molybdenum
0.18 mg/l
Nickel
0.25 mg/l
Selenium
0.09 mg/l
Silver
0.014 mg/l
Zinc
1.4 mg/l
 
Notes:
1   Nondetectible per U.S. EPA method 245.
2   Nondetectible per U.S. EPA method 608.
3   Nondetectible per U.S. EPA method 245.1 at a detection level of 0.2 :g/l.
*   Based on daily mean calculated from a minimum of 4 appropriately spaced grab samples in lieu of 24-hour composite.
   A user shall comply with all categorical pretreatment standards and any other pretreatment requirements established under §§ 307(b), 307(c), or 402(b)(8) of the Act (33 U.S.C. 1347) that are applicable to that user. If a categorical pretreatment standard and another limit contained in this article regulate any same pollutant, then the more restrictive of the two shall apply.
   Future conditions imposed on the city by government agencies with proper jurisdiction may require subsequent amendment of this subsection by the city. Where federal or state promulgated pretreatment standards require limits on parameters not covered in this subsection or limits more stringent than those specified in this subsection, the state or federal limits shall have precedence and take effect with respect to the applicable user on the later of: (i) their promulgation date, or (ii) the date specified for compliance with such standards.
      (6)   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.
      (7)   Any pollutants to the POTW that result in toxic gases, vapors, and fumes in quantities that might cause worker health and safety problems, or any malodorous gas or liquid substances capable of creating a public nuisance.
      (8)   No industrial waste that may cause a deviation from the NPDES permit requirements, pretreatment standards and all other state and federal regulations.
      (9)   Any waters or wastes having a pH lower than 6.0 or higher than 9.0 or having any other corrosive properties capable of causing damage or hazard to structures, equipment and personnel of the wastewater system.
      (10)   Any wastewater containing any radioactive wastes or isotopes of such halflife or concentration as may exceed limits established by the city in compliance with the applicable state or federal regulations.
      (11)   Any discharge to the sewer which will result in a nuisance or contamination or pollution of receiving waters.
      (12)   Any discharge which would violate any statue, rule, EPA regulation or ordinance of any public agency.
      (13)   Any pollutants with a closed cup flash point of less than 140 degrees Fahrenheit.
      (14)   Any trucked or hauled wastes to POTWs, except at discharge points designated by the POTW. Any truck waste which is targeted for discharge into the POTW system must receive written permission from the city prior to discharge. A report must be prepared indicating what type of waste is going to be discharged and in what condition the pollutant will be.
(1993 Code, § 68-172) (Ord. passed 1-22-2001; Ord. 2014-01, passed 1-27-2014)
§ 68-173. GREASE, OIL AND SAND INTERCEPTORS OR TRAPS.
   (A)   Interceptors/traps required.
 
      (1)   Grease interceptors/traps shall be provided and maintained in proper operating condition at all times at the expense of the property owner for the proper handing of liquid waste containing grease. Grease interceptors/traps shall be required for all food service establishments and may be required for other users as determined necessary by the POTW superintendent. Grease interceptors shall be sized, constructed, and installed as required by the city’s specifications and subject to the POTW superintendent’s approval. At a minimum, grease interceptors, traps shall be cleaned and maintained per the manufacturer’s specifications and as provided by this section at the property owner’s expense.
      (2)   Oil and sand interceptors/traps may be required in any establishment where sand, oil, and flammable wastes or other harmful ingredients could enter the wastewater. If a plug or backup occurs and is directly caused by sand and/or oil, the POTW superintendent may require the establishment to install an oil and sand interceptor/trap. Oil and sand interceptors/traps are required for establishments engaged in the washing of motor vehicles.
      (3)   All interceptors/traps shall be of a type and capacity approved by the city, and shall be located as to be readily and easily accessible for cleaning and inspection. Grease, oil and sand 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 into place, shall be gas tight and watertight. Grease interceptors shall provide a minimum capacity of 750 gallons.
      (4)   Where installed, all grease, oil and sand interceptors/traps shall be cleaned and maintained by the owner, at the owner’s sole expense, and shall be kept in continuously efficient operation at all times. At a minimum, any user required to install an interceptor shall comply with the best management practices as provided.
   (B)   Best management practices (BMPs).
      (1)   Any user required to install and maintain an interceptor (trap) of any kind shall develop and carry out a system of maintenance and clean out of such device(s) and shall document and keep:
         (a)   A maintenance schedule;
         (b)   The identity of the person(s) who cleaned and maintained the interceptor; and
         (c)   The method and location of grease, oil and sand disposal.
      (2)   Any problems with or damage to an interceptor/trap shall be reported immediately to the owner and the POTW superintendent.
      (3)   Any damage to an interceptor/trap shall be immediately repaired.
      (4)   No interceptor/trap clean out material shall be discharged into a sewer.
      (5)   No bacteria or enzyme products shall be used in the maintenance of the interceptor/traps.
      (6)   All users shall implement BMPs for grease management to minimize the discharge of food grease to the POTW.
      (7)   Specific BMPs for grease interceptors/traps. All users required to install and maintain grease interceptors (traps) shall comply with the following minimum requirements:
         (a)   Under sink grease traps shall be cleaned at least weekly.
         (b)   Clean outs of all other interceptor/traps shall be scheduled such that the interceptor/trap does not exceed 25% solids content (including both the top and bottom layers of solids) and there is no visible discharge of grease or oil. At a minimum, an interceptor/traps shall be cleaned out at least once every 3 months.
         (c)   The cleanout shall be accomplished by pumping to remove the entire grease mat, liquids, sludges, and solids from screens, baffles, air-relief chambers, and wash down of interior walls. The interceptor/trap shall be refilled with clear water before being returned to service.
         (d)   The user shall witness all clean out and maintenance of interceptor/traps.
   (C)   Documentation available for review. The documentation required by this section shall be available for review by the POTW and copies shall be provided to the POTW upon request.
   (D)   Right to inspect. The POTW shall have the right to inspect a restaurant (or other establishment where an interceptor/trap is required) at any time for any reason.
   (E)   Failure to comply. The failure of a restaurant (or other establishment where an interceptor/trap is required) to comply with this section may subject the violator to enforcement action and remedies as may be available by law and the terms of this article.
   (F)   Failure to maintain required interceptor/trap. If a user fails to provide or maintain a required interceptor/trap, the city may do so (or cause the same to be done) and charge the costs to the user.
(1993 Code, § 68-173) (Ord. passed 1-22-2001; Ord. 2014-01, passed 1-27-2014)
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