This article regulates the use of public drains and the discharge of waters and wastes into the public sewerage systems within the Village. It provides for the levying and collecting of wastewater treatment service charges, sets uniform requirements for discharges into the wastewater collection and treatment system and is intended to enable the Madison Metropolitan Sewerage District to comply with administrative provisions, water quality requirements, toxic and pretreatment effluent standards and other discharge criteria which are required or authorized by Wisconsin or federal law. Its intent is to derive the maximum public benefit by regulating the characteristics of wastewater discharged into the public sewerage system within the Village.
Unless the context specifically indicates otherwise, the meaning of terms used in this article shall be as follows. The terms defined in Article II of the District's Sewer Use Ordinance shall have the same meanings when used in this article. The word "shall" is mandatory.
- APPROVING AUTHORITY
- The Village of Maple Bluff or its duly authorized committee, agent, or representative.
- BUILDING DRAIN
- That part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste, and other drainage pipes inside the wall of the building and conveys it to the building sewer.
- BUILDING SEWER
- The extension from the public sewer or other place of disposal beginning outside the inner face of the building wall.
- CARBONACEOUS BIOCHEMICAL OXYGEN DEMAND (CBOD)
- The quantity of oxygen used in the biochemical degradation of organic material in five days at 20° C when the oxidation of reduced forms of nitrogen is prevented by the addition of an inhibitor. This analytical procedure shall be performed in accordance with Standard Methods.
- The Madison Metropolitan Sewerage District.
- FLOATABLE OIL
- Oil, fat, or grease in a physical state such that it will separate by gravity from wastewater by treatment in an approved pretreatment facility. A wastewater or septage shall be considered free of floatable fat if it is properly pretreated and the wastewater does not interfere with the collection or treatment system.
- The residue from the preparation, cooking, and dispensing of food and from the handling, storage, and sale of food products and produce.
- GROUND GARBAGE.
- The residue from the preparation, cooking, and dispensing of food that has been shredded to such degree that all particulates are no greater than 1/2 inch in any dimension and will be carried freely in suspension under normal flow conditions in sewers.
- INCOMPATIBLE POLLUTANTS OR WASTEWATER
- Wastewater or septage with pollutants or of such a strength that will adversely affect or disrupt the wastewater treatment processes or effluent quality or sludge quality if discharged to the sewerage system facility.
- INDUSTRIAL WASTE
- The wastewater from industrial process, trade, or business, as distinct from sanitary sewage, including cooling water and the discharge from sewage pretreatment facilities.
- MMSD ORDINANCE
- The Sewer Use Ordinance of the Madison Metropolitan Sewerage District adopted in September 1984 and any amendments thereto.
- MUNICIPALITY, COMMUNITY or VILLAGE
- The Village of Maple Bluff.
- MUNICIPAL WASTEWATER
- The wastewater of a community. From the standpoint of source, it may be a combination of the liquid and water-carried wastes from residences, commercial buildings, industrial plants and institutions together with any groundwater, surface water, and stormwater that may have inadvertently entered the sewerage system.
- NATURAL OUTLET
- Any outlet, including storm sewers and combined sewer overflows, into a watercourse, pond, ditch, lake or other body of surface or ground water.
- PARTS PER MILLION
- A weight-to-weight ratio; the parts per million value multiplied by the factor 8.34 shall be equivalent to pounds per million gallons of water.
- Any and all persons, including any individual, firm, company, municipal or private corporation, association, society, institution, enterprise, government agency, or other entity.
- The logarithm, of the reciprocal of hydrogen ion concentration. The concentration is the weight of hydrogen ions in grams per liter of solution. Neutral water, for example, has a pH value of seven and a hydrogen ion concentration of 10.
- PUBLIC SEWER
- Any sewer provided by or subject to the jurisdiction of the Village of Maple Bluff.
- SANITARY SEWAGE
- A combination of liquid and water-carried wastes discharged from toilets and/or sanitary plumbing facilities, together with such ground-, surface and storm waters as may have inadvertently entered the sewerage system.
- SANITARY SEWER
- A sewer that carries liquid and water-carried wastes from residences, commercial buildings, industrial plants, and institutions, together with small quantities of ground-, storm and surface waters that are not admitted intentionally.
- The wastewater or contents of septic or holding tanks, dosing chambers, grease interceptors, seepage beds, seepage pits, seepage trenches, privies or portable rest rooms.
- SEWERAGE SYSTEM
- All structures, conduits and pipes by which sewage is collected, treated, and disposed of, except plumbing inside and in connection with buildings served, and service pipes, from building to street main.
- SEWER SERVICE CHARGE
- A service charge levied on users of the wastewater collection and treatment facilities for payment of use-related capital expenses as well as the operation and maintenance costs, including replacement of said facilities.
- SEWER SYSTEM
- The public sanitary sewers within a sewerage system. The facilities which convey wastewater from individual structures, from private property to the public sanitary sewer, or its equivalent, are specifically excluded from the definition of "sewer system," except that pumping units and pressurized lines for individual structures or groups of structures may be included as part of a sewer system when such units are cost effective and are owned and maintained by the Village of Maple Bluff.
- SLUG LOAD
- Any substance released at a discharge rate and/or concentration which causes interference to wastewater treatment processes or plugging or surcharging of the sewer system.
- STANDARD METHODS
- The examination and analytical procedures set forth in the most recent edition of Standard Methods for the Examination of Water, Sewage, and Industrial Wastes, published jointly by the American Public Health Association, the American Water Works Association and the Water Pollution Control Federation, and in compliance with federal regulations 40 CFR 136, Guidelines Establishing Test Procedures for Analysis of Pollutants, all as amended from time to time.
- STORM DRAIN or STORM SEWER
- Drain or sewer for conveying surface water, groundwater, subsurface water or unpolluted water from any source.
- STORMWATER RUNOFF
- That portion of the rainfall that is collected and drained into the storm sewers.
- SUSPENDED SOLIDS
- Solids that either float on the surface of or are in suspension in water, wastewater, septage, or other liquids and that are removable by laboratory filtering as prescribed in Standard Methods and referred to as "nonfilterable residue."
- TOTAL KJELDAHL NITROGEN (TKN)
- The quantity of organic nitrogen and ammonia as determined in accordance with Standard Methods.
- TOTAL PHOSPHORUS (TP)
- The quantity of total phosphorus as determined in accordance with 40 CFR 136 or as the Environmental Protection Agency otherwise determines.
- WASTEWATER FACILITIES
- The structures, equipment, and processes required to collect, carry away, store, and treat domestic and industrial waste and septage and dispose of the effluent and sludge.
- WASTEWATER TREATMENT WORKS
- An arrangement of devices and structures for treating wastewater, septage, industrial waste, and sludge. Sometimes use as synonymous with "waste treatment."
- A natural or artificial channel for the passage of water, either continuously or intermittently.
No person shall place, deposit or permit to be deposited in any unsanitary manner on public or private property within the Village or in any area under its jurisdiction any human or non-farm-animal excrement, garbage or other objectionable waste.
No person shall discharge to any natural outlet within the Village any wastewater or other polluted waters, except where suitable treatment has been provided in accordance with subsequent provisions of this article, Chapter 27 of the Dane County Sanitary Ordinance or under the provisions of the public health laws of the state.
No person shall construct or maintain any privy, privy vault, septic tank, cesspool or other facility intended or used for the disposal of wastewater.
The owner of all houses, buildings or properties used for human occupancy, employment, recreation or other purposes situated within the Village shall, at his own expense, install suitable toilet facilities therein and connect such facilities directly with the public sewer.
Combined sewers. No combined sewers (i.e., sewers receiving both wastewater and storm- or surface water) shall be connected with the wastewater facilities of the Village.
Sanitary sewer connections to district intercepting sewers.
General. Any person desiring to connect directly with any intercepting sewer of the District shall do so only after first receiving a permit therefor from the District.
Connection of a building sewer to a public sewer.
Applications for permission to connect a building sewer directly to an intercepting sewer shall be made in accordance with the rules of the Sanitary District Commissioners. No work of laying the building sewer shall be commenced or continued without the required connection permit being on the premises and in the hands of the licensed master plumber or one employed by him. Each building sewer to be connected to an intercepting sewer shall be inspected by the Chief Engineer or his representative at the time of the connection.
Applications for permission to connect to a sewer owned by the Village shall be made to the Village. No building sewer shall be connected to a community sewer unless the community sewer is adequately sized to transport the additional flow. At the time of connection, each building sewer shall be inspected by the Village. The applicant shall pay the Village a connection fee as determined by the Village Board.
New connections will be allowed only if there is available capacity in all downstream wastewater collection and treatment facilities.
Issuance of permit.
The permit shall only be granted by the Village upon written application, provided by the Village, by the owner or authorized agent on the premises desiring to make such an application. The Director of Public Works may, at his/her option, accept the owner's application for a building permit as the application to connect to the public sewerage system. The user who proposes to connect to the public sewerage system shall submit an application fee pursuant to the fee schedule prescribed for each connection. Said application fee will be in addition to any connection fees levied by the Director of the Madison Metropolitan Sewerage District. The fee is not refundable.
Upon approval of the application, the Director of Public Works shall issue a permit granting the right to make the connection and may specify special conditions which must be met as a part of the permit. In addition, the applicant must comply with all special conditions required by the Director of the Madison Metropolitan Sewerage District, if any.
Supervision of construction of community and building sewers.
Construction of community sewers of the Village shall be under the direction of a licensed professional engineer. Such engineer shall keep accurate records of the location, depth and length of sewers as built and the location of the "Y" branches of slants.
All building sewers served by the Village shall be constructed and inspected as required by Sec. COMM 82.23, Wis. Adm. Code.
All private sewers and all building sewers between the property line and terminating at the public sewerage system shall be installed by Village forces, Village contractor, or plumbers or contractors qualified by the Director of Public Works under the supervision of the Public Works Committee.
All costs and expenses incidental to the installation and connection of the building sewer shall be borne by the owner(s). Whenever a sanitary sewer lateral is installed by Village forces or Village contract as provided herein, the actual cost of construction of the sanitary sewer lateral plus an additional 10% for engineering and inspection by the Village of Maple Bluff shall be entered on the tax roll as a special tax against said lot or parcel of land served and the same shall be collected in all respects like other taxes upon real estate.
Old sanitary lateral sewers may be used in connection with new building only when they are found, on examination test by the Village Building Inspector or designee, to meet the requirements of this article.
Prohibited discharges. Prohibited discharges shall be the same as those prohibited by Section 5.1 of the District's Sewer Use Ordinance. In addition, no person shall discharge wastes to a community sewer which cause or are capable of causing, either alone or with other substances:
Prohibition on unpolluted water. Unpolluted water, including but not limited to cooling water, process water or blow-down from cooling towers or evaporative coolers, shall not be discharged into Village sewers without prior approval of the Village and the District or into intercepting sewers without prior approval of the District. Such approval may be conditional on the payment of applicable fees required by the District or Village.
Limitation on discharge characteristics. The limitations on the characteristics of wastewater discharged to any public sewer in the Village shall be the same as the limits set in Section 5.2 of the District's Sewer Use Ordinance.
Accidental discharge of prohibited wastewater. Any person who discharges into the public sewerage system wastes or wastewater prohibited under this article shall immediately report such a discharge to the Village and to the Chief Engineer. Within 15 days of such discharge a detailed written statement describing the cause of the discharge and the measures taken to prevent a future occurrence shall be submitted to the Village and the Chief Engineer.
Alternatives to acceptance of wastewater. If any waters or wastes are discharged or are proposed to be discharged to the public sewers in excess of those limitations enumerated in Section 5.2, the Village, subject to approval of the Chief Engineer, may:
Pretreatment of industrial wastes. Pretreatment of industrial discharges shall be in accordance with Section 5.5 of the District's Sewer Use Ordinance.
Limitations of discharge of holding tank wastes. No person shall discharge any holding tank wastes directly into a manhole or other opening in a community sewer. Discharge of holding tank wastes at the wastewater treatment plant shall be in accordance with Section 5.6.2 of the District's Sewer Use Ordinance.
Sand and grease trap installations. Sand and grease trip installations shall be performed in accordance with Section 5.7 of the District's Sewer Use Ordinance.
Monitoring facilities shall be constructed, operated and inspected and reports filed in accordance with Article VII of the District's Sewer Use Ordinance.
Each person discharging industrial wastes into a public sewer shall construct and maintain one or more control manholes or access points to facilitate observation, measurement, and sampling of its waste, including domestic sewage.
Control manholes or access facilities shall be located and built in a manner acceptable to the MMSD. If measuring devices are to be permanently installed, they shall be of a type acceptable to the MMSD.
Control manholes, access facilities, and related equipment shall be installed by the person discharging the industrial waste, at its expense, and shall be maintained by the person discharging the waste so as to be in safe condition, accessible, and in proper operating condition at all times. Plans for installation of the control manholes or access facilities and related equipment shall be approved by the MMSD prior to the beginning of construction.
Wastewater flow measurements, sampling, and reporting shall be done in accordance with Article VII of the MMSD Ordinance.
Definitions. The following terms shall have the following meanings under this section:
- DEBT SERVICE CHARGES
- All costs associated with repayment of debts incurred for the construction and/or rehabilitation of a wastewater collection system and treatment facility.
- NORMAL DOMESTIC STRENGTH WASTEWATER
- Wastewater with concentrations of CBOD, suspended solids, total kjeldahl nitrogen and total phosphorus no greater than 200, 250, 40 and 10 milligrams per liter, respectively.
- NORMAL USER
- A user whose contributions to the sewerage system consist only of normal domestic strength wastewater originating from a house, apartment, flat, or other living quarters occupied by a person or persons constituting a distinct household, business or commercial enterprise.
- OPERATION AND MAINTENANCE COSTS
- All costs associated with the operation and maintenance of the sewerage system.
- REPLACEMENT COSTS
- All costs necessary to replace equipment as required to maintain capacity and performance during the design life of the facility. A separate, segregated, distinct replacement fund shall be established and used for only replacement of equipment.
- SEWER SERVICE CHARGE
- A service charge levied on users of the sewerage system for payment of capital expenses as well as the operation and maintenance costs, including replacement of said facilities.
Policy. It shall be the policy of the Village of Maple Bluff to obtain sufficient revenues to pay the costs of the operation and maintenance of the sewerage system, including a replacement fund (i.e., a cash account to be used for future expenditures for obtaining or installing equipment, accessories or appurtenances which are necessary to maintain the capacity and performance of the sewerage system during the service life for which such facilities were designed and constructed), through a system of sewer service charges as defined in this section. The system shall assure that each user of the sewerage system pays its proportionate share of the cost of such facilities.
Basis for service charge. The semiannual service charge shall be sufficient to pay the billing and customer-related administration expense and the operation and maintenance expenses, including any replacement of the sewerage system. The rates in this section shall be reviewed not less than biennially. Rates shall be adjusted as required to reflect actual number and size of users and actual costs. Users will be notified annually of the portion of service charges attributable to operation and maintenance.
Sewer service charges. A sewer service charge is hereby imposed upon each lot, parcel of land, building, or premises served by the public sewer and wastewater facilities or otherwise discharging sewage, including industrial wastes, into the public sewerage system. Such sewer service charge shall be payable as hereinafter provided and in amount determined as follows:
Category A service charges shall be imposed on users whose water use is metered and whose sewer discharges are normal domestic strength wastewater. The Category A sewer service charge is of the following form:
Customer Charge + Volume Charge
A flat rate based on the size of the water meter
A volume of metered water in hundred cubic feet multiplied by a volume rate
The volume unit price expressed in dollars per 100 cubic feet
Category B service charges shall be imposed on users whose water use is not metered and whose sewage discharges normal domestic strength wastewater. The Category B service charge shall be of the form as follows: Service Charge = Equivalent Residential Units multiplied by the Equivalent Residential Unit Rate. No user shall be assigned less than one equivalent residential unit. The number of residential unit equivalents for nonresidential users shall be as determined by the Sanitary District Commissioners.
Category C service charges shall be imposed on users whose sewage discharges are high-strength wastewater having concentrations of carbonaceous biochemical oxygen demand (CBOD) greater than 200 milligrams per liter (mg/l) and/or suspended solids greater than 250 milligrams per liter (mg/l) and/or total kjeldahl nitrogen (TKN) greater than 40 milligrams per liter (mg/l) and/or total phosphorus (TP) greater than 10 milligrams per liter (mg/l). The minimum Category C service charge shall be based on a concentration of 200 mg/l CBOD, 250 mg/l suspended solids, 40 mg/l TKN, and 10 mg/l total phosphorus. The form of the Category C service charge is as follows: Service Charge = Customer Charge + Volume Charge + High Strength Surcharge. The customer charge and the volume charge are similar to those components of the Category A service charge.
The high-strength surcharge equals the excessive CBOD, suspended solids, TKN, and total phosphorus multiplied by the respective CBOD, suspended solids, TKN and total phosphorus rates. The excessive CBOD, suspended solids, TKN and total phosphorus are the portions of each of these constituents that are in excess of normal domestic strength wastewater. The excessive amounts of CBOD, suspended solids, TKN and total phosphorus are expressed in pounds and their respective rates are expressed in dollars per pound.
Reassignment of sewer users. The Village of Maple Bluff will reassign sewer users into appropriate sewer service charge categories if wastewater sampling programs and other related information indicate a change of categories is necessary.
The Village will maintain proportionate distribution of operation, maintenance, and replacement costs.
The user charge takes precedence over preexisting agreements inconsistent with the regulations of this program.
Editor's Note: The schedule of current charges is on file with the Village Clerk-Treasurer.
Collection. Service charges and industrial cost recovery charges shall be billed semiannually. Payments shall be made within 20 days of the billing date. Interest of 1 1/2% per month shall accrue on bills from and after the date payment is due.
Delinquent payments. Delinquent payments shall be collected in the manner provided by §§ 66.0821 and 200.13(2), Wis. Stats.
Disposition of revenue. The amounts received from the collection of charges authorized by this article shall be credited to a sanitary sewerage account which shall show all receipts and expenditures of the sewerage system. Charges collected for replacement expenses shall be credited to a segregated, nonlapsing replacement account. These funds are to be used exclusively for replacement. When appropriated by the Village of Maple Bluff, the credits to the sanitary sewerage account shall be available for the payment of the requirements for operation, maintenance, repairs, and depreciation of the sewerage system consistent with 40 CFR 35.929. Any surplus outside the purview of 40 CFR 35.929 in said account shall be available for the payment of principal and interest of bonds issued and outstanding, or which maybe issued, to provide funds for said sewerage system, or part thereof, and all or a part of the expenses for additions and improvements and other necessary disbursements or indebtedness, and the Village of Maple Bluff may resolve to pledge each surplus or any part thereof for any such purpose. All present outstanding sewer system general obligation bonds, including the refunding bonds, shall be paid from this fund as to both principal and interest.
Any person found in violation of the Sewer Use Ordinance of the District or of any prohibition, limitation or requirement contained therein shall be subject to the procedures and penalties therein pertaining. Any such violation occurring within the Village shall, in addition, be a violation of this article, subject to the penalties imposed under this chapter.
No person shall knowingly make any false statement, representation, record, report, plan or other document filed with the municipality or the District or falsify, tamper with or knowingly render inaccurate any monitoring device or method required under this article or the District Ordinance. Any person who violates this provision shall be subject to the penalties imposed under this chapter.