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SEWER USE REGULATIONS
(A) Mandatory connection requirement. Each and every owner of property on which is located a structure in which sanitary sewage originates, shall, at his or her own expense, install suitable toilet facilities in said structure, and shall cause such facilities to be connected to the available public sanitary sewer system.
(B) Connection procedure.
(1) Such connection shall be completed promptly but in no case later than 90 days from the date of the occurrence of the last of the following events:
(a) Publication of a notice by the City Clerk of the availability of the public sanitary sewer system in a newspaper of general circulation within the city, and the mailing of written notice indicating the availability of the public sanitary sewer to the owner or any one of the owners in the case of co-ownership of the property in question.
(b) Modification of a structure so as to become a structure where sanitary sewage originates.
(c) Improvement of land with building or structures from which sanitary sewage originates.
(2) If the owner of property on which is located a structure in which sanitary sewage originates does not complete connection to an available sanitary sewer within the 90-day period described in division (B)((1) above, the City Clerk shall notify said person by written notice that connection to the system is required forthwith. The giving of said notice shall be made by first class mail to the owner of the property on which the structure is located and by posting such notice on the property. Notice shall provide the owner with the approximate location of the public sanitary sewer system which is available for connection of the structure involved and shall advise the owner of the requirements and the enforcement provisions of this chapter and M.C.L.A. §§ 333.12751 through 333.12758, as amended.
(3) Adverse weather exception for late connection. In the event the property owner is unable to connect to the system within the time prescribed by this chapter due to or on account of inclement or adverse weather conditions, said property owner may appeal to the Sanitary Sewer Board of Appeals established pursuant to § 51.126(A) of this chapter to allow said person additional time in which to connect without penalty and without civil and criminal proceedings being initiated against him/her. The foregoing notwithstanding, this appeal shall be made in writing within ten days of notice of sanitary sewer availability as hereinbefore set forth.
(C) Enforcement of mandatory connection requirements - penalties for late connection. Failure or refusal to connect to the system within the time prescribed herein shall result in the property being charged a penalty of $100 for each single-family residential unit multiplied by the number of units and/or multiplying factors as established by the Table of Residential Equivalents. Each day that a violation of this chapter shall continue shall be construed to constitute a separate offense. Civil and/or criminal proceedings to compel connection are established under § 51.130.
(Ord. 622, passed 3-4-85; Am. Ord. 1074, passed 9-27-21) Penalty, see § 51.999
(A) No person shall discharge or cause to be discharged any stormwater, surface water, ground water, or roof water to any sanitary sewer.
(B) Stormwater, ground water and all other unpolluted drainage shall be discharged into storm drains or to a natural outlet approved by the city.
(C) Industrial cooling water which is unpolluted and not contaminated with oil, algaecides or other pollutants, or unpolluted process waters may be discharged, upon application to and approval of the city, to a storm drain or natural outlet.
(D) Industrial cooling water containing only such pollutants as insoluble oils or grease or other suspended solids shall be pretreated for removal of the pollutants and then discharged to the stormwater.
(Ord. 622, passed 3-4-85; Am. Ord. 1074, passed 9-27-21) Penalty, see § 51.999
The following are prohibited discharges:
(A) Any waste with a closed cup flash point of less than 140° F. or any liquids, solids, gases, vapors, or fumes, 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, the operation of the POTW, or the employees of the POTW. Prohibited materials include but are not limited to, gasoline, kerosene, naphtha, benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides, and sulfides.
(B) 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.
(C) Any ashes, cinders, sand, mud, straw, metal shavings, 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.
(D) Any water or waste which may contain more than 100 milligrams per liter, by weight, of fat, oil or grease.
(E) Any garbage with particle size of one-half-inch in any dimension.
(F) The minimum temperature of the waste shall not be less than 32° F. at the point of discharge. The maximum temperature of the waste shall not be greater than 150° F. at the point of discharge and shall not cause a wastewater temperature in excess of 104° F. at the entrance to the treatment facility, whichever is more restrictive, unless written authorization is received from the city.
(G) Any noxious or malodorous liquids, gases, or solids which either singly or by interaction with other wastes are sufficient to create a public nuisance or hazard to life or are sufficient to prevent entry into the sewers for maintenance and repair.
(H) Any wastewater with objectionable color not removed in the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions.
(I) Radioactive wastes or isotopes of such half-life or concentration which may exceed limits established by applicable state and federal regulations shall not be allowed.
(J) Any waste that is considered hazardous under RCRA regulations unless specifically exempted through a user contribution permit.
(K) Any trucked or hauled waste except at specific locations that have been approved by the superintendent of the POTW.
(L) Any trucked or hauled waste that would be considered a prohibited discharge under divisions (A) through (N) of this section.
(M) Any trucked or hauled waste that has not been approved by the Superintendent of the POTW.
(N) Any wastewater which causes a hazard to human life or creates a public nuisance.
(O) Any pollutants, including oxygen demanding pollutants (B.O.D., and the like) released at a flow rate and/or pollutant concentration which a user knows or has reason to know will cause interference to the POTW. In no case shall a slug load have a flow rate or contain quantities of pollutants that exceed for any period of time longer than 15 minutes, more than five times the average 24-hour concentration, quantities, or flow during normal operation.
(P) (1) Any waters or wastes containing compatible or toxic pollutants, which singly or by interaction with other pollutants, exceed limitations established by the city for the following reasons:
(a) To prevent treatment process pass-through of pollutants which violate water quality standards of the receiving stream.
(b) To prevent injury or inhabitation of the treatment process or sludge handling facilities.
(c) To prevent contamination of the wastewater sludge and interference with the sludge disposal process.
(d) To comply with federal EPA categorical pretreatment standards.
(2) Toxic pollutants shall include, but are not limited to, any substance identified on the Federal EPA Priority Pollutant and State of Michigan Critical Materials List. Methods used by the city to establish limitations shall be in accordance with the latest guidance of the Michigan Department of Natural Resources. Limitations may be adjusted to reflect the presence of pollutants in the users' intake water supply in accordance with part 403.15 of the U.S. Environmental Protection Agency General Pretreatment Regulations of January 28, 1981.
(Q) Any waters or wastes exceeding the following characteristics:430 mg/l BOD(S), 615 mg/l S.S., 8 mg/l P, 36 mg/L ammonia nitrogen.
(R) Heavy metal discharge limits exceeding the following:
POLLUTANT | Local Limit (Daily Max) (mg/l) |
POLLUTANT | Local Limit (Daily Max) (mg/l) |
Arsenic | 0.25 |
Cadmium | 0.57 |
Chromium, Total | 1.28 |
Copper | 0.59 |
Cyanide | 0.09 |
Lead | 6.0 |
Mercury | ND* |
Molybdenum | 2.84 |
Nickel | 1.60 |
Selenium | 1.49 |
Silver | 0.89 |
Zinc | 0.4 |
*Non-Detectable is defined as at or below the quantification level applicable under 40 CFR Part 136 as determined by the City WRRF Superintendent. Mercury sampling procedures, preservation and handling, and analytical protocol for compliance monitoring of a user's discharge shall be in accordance with the applicable US EPA method as determined by the Superintendent. The quantification levels shall be 0.2 µg/l or 0.5 ng/l, depending on the method required by the Superintendent, unless higher levels are approved by the Superintendent because of sample matrix interference. Any discharge of mercury at or above the required level of quantification is a specific violation of this chapter. | |
(Ord. 622, passed 3-4-85; Am. Ord. 1074, passed 9-27-21) Penalty, see § 51.999
(A) Grease, oil and sand interceptors (traps) or any other method approved by the city shall be provided at the expense of the property owner when liquid wastes contain grease in excessive amounts, or other harmful ingredients. An interceptor shall be required for every food service establishment (restaurant and fast food outlets), automotive repair shop or garage, car wash, or any other type of establishment or use as determined necessary by the WRRF Superintendent. An interceptor shall not be required for single-family and multi-family dwelling units. All interceptors 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 gastight and watertight.
(B) Where installed, all grease, oil and sand interceptors (traps) or any other method approved by the city shall be maintained by the owner, at his or her expense, in continuously efficient operation at all times.
(Ord. 622, passed 3-4-85; Am. Ord. 1074, passed 9-27-21) Penalty, see § 51.999
(A) Right of review by city. Admission into the public sewers of wastewaters containing any prohibited discharges in § 51.062 or having an average daily flow rate of 10,000 gallons or more shall be subject to review by the city. All proposed discharges to the sanitary sewers shall be reviewed prior to connection. The discharge of an existing user shall be subject to review if a change in the contribution is anticipated or at the request of the city to demonstrate continued compliance with ordinance requirements. In support of this review, existing or potential users of the sewers shall provide all information necessary to complete the review. This information shall include, but is not limited to, the following:
(1) File a written statement setting forth the nature of the enterprise, the source and amount of water used, the amount of water to be discharged with its present or expected bacterial, physical, chemical, radioactive, or other pertinent characteristics of the wastes.
(2) Provide a report on raw materials entering the process or support system, intermediate materials, final product, and waste by-products as those factors may affect waste control.
(3) Provide a plan map of the building, works, or complex, with each outfall to the surface waters, sanitary sewer, storm sewers, natural watercourse, or groundwaters noted, described, and the waste stream identified.
(4) Records and reports on the final disposal of specific liquids, solids, sludges, oils, solvents, radioactive materials, and other wastes.
(5) In the case of existing discharges, sampling and test reports as may be required by the city.
(B) Right to exclude or require pretreatment. On direction of the city, an entity may be required to remove, exclude, or require pretreatment of any waste in whole or in part for any reasons deemed to be in the city's interest. Where preliminary treatment facilities are provided for any waters or wastes, they shall be maintained in satisfactory and effective operation at no expense to the city and shall be designed and operated to assure that wastewaters discharged meet the characteristics set forth in § 51.062. A wastewater contribution permit may be required for any discharge as provided in §§ 51.080 through 51.088.
(Ord. 622, passed 3-4-85; Am. Ord. 1074, passed 9-27-21)
(A) No provision of this chapter shall be construed as preventing any special agreement or arrangement between the city and any user whereby sewage or wastes of unusual strength or character may be accepted by the sewage system for treatment, subject to the payment by such user of such additional charges as may be reasonable. However, federal and state prohibited discharge standards can never be waived. Where authorized by the WRRF Superintendent, special alternative limit agreements shall be made such that the allocation to all industrial users in the city service area does not exceed the calculated maximum allowable industrial loading (MAIL) for any parameter and such that the allocation to all sewer users does not exceed the calculated maximum allowable headworks loading (MAHL) for any parameter summarized in this section.
(B) A non-domestic user may, at the time of application for a wastewater discharge permit, or by a special alternative limit application, request that permitted discharge limits be increased from the standard local limits listed in § 51.062. Such special alternative limits shall be expressed as total daily pounds of pollutant discharged. Special alternative limits (SALs) shall be developed in accordance with the procedure for special alternative limits allocation as outlined in the Industrial Pretreatment Program manual for the city and approved by EGLE. The city's rules and regulations shall be available for inspection at 1301 N. Franklin St., Mt. Pleasant, MI 48858.
(C) The city reserves the right to reduce or deny special alternative limits if total pollutant discharges near or reach the MAHLs set forth in the table in this section. The city reserves the right to amend the MAHLs set forth in this section at its discretion. The special alternative limit must not result in the POTW (including the collection system) receiving pollutants in excess of its ability to convey or treat.
(D) A user which requests a special alternative limit through the permit application process must sign a written acknowledgment whereby the user consents to comply with all terms and conditions which may be imposed by the city. Such acknowledgment shall be in a form provided by the city, and must be executed by an authorized representative before any special alternative limit is effective.
(E) In addition, the city reserves the right to institute a review of any previously permitted special alternative limits at any time, pursuant to which the city, in its discretion, upon notice and the opportunity for hearing, may reduce or eliminate a user's previously permitted to approved special alternative limit.
(F) Any discharge in excess of the amount permitted by the special alternative limit is prohibited and is therefore a violation of this section and the user's wastewater discharge permit.
(G) The EGLE approved (2020) MAHL and MAILs for parameters that may be considered for SALs are as follows:
Parameter | MAHL (lb/day) | MAIL (lb/day) |
BOD5 | 5,764 | 645 |
TSS | 5,725 | 924 |
Phosphorus | 114 | 13 |
Ammonia (as N) | 918 | 54 |
(H) MAHL and MAIL values will be re-evaluated periodically as required by federal and state IPP regulations.
(Ord. 622, passed 3-4-85; Am. Ord. 1074, passed 9-27-21)
(A) When required by the city to demonstrate compliance with this chapter, the owner of any property serviced by a building sewer shall install a suitable control manhole together with sampling equipment, flow meters, and other appurtenances as necessary in the building sewer to facilitate monitoring the control manhole shall be constructed in accordance with plans approved by the Superintendent. The manhole shall be installed by the owner at his or her expense, and shall be maintained by him/her so as to be safe and accessible at all times. 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 from the point at which the building sewer is connected.
(B) All measurements, tests and analyses of the characteristic of waters and wastes to which reference is made in this chapter shall be determined in accordance with 40 CFR Part 136, as amended, or as required by EGLE. All measurements, tests, and analyses shall be determined as the control manhole and upon suitable samples taken at said manhole. It shall be the responsibility of the industrial customer to provide flow measuring sampling equipment for each control manhole.
(Ord. 622, passed 3-4-85; Am. Ord. 1074, passed 9-27-21) Penalty, see § 51.999
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