Terms used in this article have the following meanings. The term "shall"
is mandatory; "may" is permissive.
AMMONIA NITROGEN (NH3-N)One of the oxidation states of nitrogen, in which nitrogen is combined
with hydrogen in molecular form as NH3 or in ionized form as NH4. Quantitative
determination of ammonia nitrogen shall be made in accordance with procedures
set forth in Standard Methods or in Ch. NR 149, Wis. Adm. Code.
APPROVING AUTHORITYThe Board of Public Works, City Engineer, or the Superintendent of
the Wastewater Treatment Plant (or other designated official) of the City
of Lodi, or his duly authorized deputy, agent, or representative.
CATEGORY AThose sanitary sewer users who discharge wastewater with concentrations
of BOD no greater than 558 milligrams per liter, total suspended solids concentrations
no greater than 558 milligrams per liter, total kjeldahl nitrogen concentrations
no greater than 74 milligrams per liter, and total phosphorus concentrations
no greater than 13 milligrams per liter.
CATEGORY BThose sanitary sewer users who discharge wastewater with concentrations
of BOD greater than 558 milligrams per liter, total suspended solids concentrations
greater than 558 milligrams per liter, total kjeldahl nitrogen concentrations
greater than 74 milligrams per liter, or total phosphorus concentrations greater
than 13 milligrams per liter.
CATEGORY CThose sanitary sewer users who discharge septage or holding tank
wastes with concentrations of BOD greater than 558 milligrams per liter, total
suspended solids concentrations greater than 558 milligrams per liter, total
kjeldahl nitrogen concentrations greater than 74 milligrams per liter, or
total phosphorus concentrations greater than 13 milligrams per liter.
COMPATIBLE POLLUTANTSBiochemical oxygen demand, suspended solids, phosphorus, pH, or fecal
coliform bacteria, plus additional pollutants identified in the WPDES permit
for the publicly owned treatment works receiving the pollutants if such works
were designed to treat such additional pollutants and in fact do remove such
pollutants to a substantial degree.
INCOMPATIBLE POLLUTANTSWastewater with pollutants that will adversely affect or disrupt
the quality of wastewater treatment if discharged to a wastewater treatment
facility.
INDUSTRIAL USERA. Any nongovernmental user of publicly owned treatment works identified
in the Standard Industrial Classification Manual, 1972, Office of Management
and Budget, as amended and supplemented as of October 1, 1978, under the following
divisions:
(1) Division A: Agriculture, Forestry and Fishing.
(3) Division D: Manufacturing.
(4) Division E: Transportation, Communications, Electric, Gas and Sanitary
Services.
B. A user in the division listed may be excluded if it is determined that
it will introduce primarily segregated domestic wastes or wastes from sanitary
conveniences.
INDUSTRIAL WASTESThe liquid waste from industrial manufacturing processes, trade or
business as distinct from sanitary sewage.
MAJOR CONTRIBUTING INDUSTRYAn industry that:
A. Has a flow of 25,000 gallons or more per average workday;
B. Has a flow greater than 5% of the flow carried by the municipal system
receiving the wastes;
C. Has a material in its discharge included on a list of toxic pollutants
issued under § 283.21(1), Wis. Stats.; or
D. Has significant impact, either singularly or in combination with other
contributing industries, on the treatment works or the quality of its effluent.
NATURAL OUTLETAny outlet into a watercourse, pond, ditch, lake or other body of
surface water or groundwater.
NON-CITY CUSTOMERAny person receiving wastewater collection and treatment facility
services whose property receiving such services was not within the corporate
limits of the City of Lodi on January 1, 1981.
NORMAL DOMESTIC STRENGTH WASTEWATERWastewater with concentrations of BOD no greater than 558 milligrams
per liter, total suspended solids concentrations no greater than 558 milligrams
per liter, total kjeldahl nitrogen concentrations no greater than 74 milligrams
per liter, or total phosphorus concentrations no greater than 13 milligrams
per liter.
OPERATION AND MAINTENANCE COSTSIncludes all costs associated with the operation and maintenance
of the wastewater collection and treatment facilities as well as the costs
associated with periodic equipment replacement necessary for maintaining capacity
and performance of wastewater collection and treatment facilities.
PARTS PER MILLIONA weight ratio; the parts per million value multiplied by the factor
8.34, equivalent to pounds per million gallons of water.
PERSONAny individual, firm, company, association, society, corporation
or group.
PHOSPHORUSTotal phosphorus, including both the soluble orthophosphate fraction
and the organically bound phosphorus fraction which may be soluble or particulate
in form. Phosphorus shall be determined by the method outlined in the most
recent edition of Standard Methods for total phosphorus.
PUBLIC SEWERAny sewer provided by or subject to the jurisdiction of the City
of Lodi. It shall also include sewers within or outside the City boundaries
that serve one or more persons and ultimately discharge into the City sanitary
or combined sewer system, even though some sewers may not have been constructed
with City funds.
REPLACEMENT COSTSExpenditures for obtaining and installing equipment, accessories,
or appurtenances which are necessary during the service life of the treatment
works to maintain the capacity and performance for which such works were designed
and constructed. Operation and maintenance costs include replacement costs.
RESIDENTIAL EQUIVALENT UNITEquivalent to an average residential household contributing 73,000
gallons of wastewater per year with BOD and suspend solids concentrations
no greater than 558 milligrams per liter, total kjeldahl nitrogen concentrations
no greater than 74 milligrams per liter, or total phosphorus concentrations
no greater than 13 milligrams per liter.
RESIDENTIAL USERA user whose contributions to the wastewater treatment works consist
only of normal domestic strength waste originating from a house, apartment,
flat, or other living quarters occupied by a person or persons constituting
a distinct household.
SANITARY SEWAGEA combination of the water-carried wastes from residences, business
buildings, institutions and industrial establishments.
SANITARY SEWERA sewer that carries sanitary sewage and to which stormwater, surface
water and groundwater are not intentionally admitted.
SEPTAGEThe wastewater or contents of septic or holding tanks, dosing chambers,
grease interceptors, seepage beds, seepage pits, seepage trenches, privies
or portable rest rooms.
SEWER CONNECTION CHARGEA charge assessed all customers for connecting to public sanitary
sewers that discharge to the Lodi wastewater treatment facility.
SEWER SERVICE CHARGEA service charge levied on users of the wastewater collection and
treatment facilities for payment of capital-related expenses as well as operation
and maintenance costs of said facilities. (User charge, which covers operation
and maintenance and replacement costs, is a part of the sewer service charge.)
STANDARD METHODSThe 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 Federation of Sewage and Industrial Wastes
Associations.
STORM SEWERA sewer which carries stormwater and surface water and drainage but
excludes sewage and industrial wastes, other than unpolluted cooling water.
SUSPENDED SOLIDSSolids that either float on the surface of, or are in suspension
in, water, sewage, or other liquids and which are removable by laboratory
filtering.
TOTAL KJELDAHL NITROGENThe sum of the ammonia nitrogen fraction and organic nitrogen fraction
as determined in the most recent edition of Standard Methods for total kjeldahl
nitrogen.
UNPOLLUTED WATERWater of quality equal to or better than the effluent criteria in
effect or water that would not cause violation of receiving water quality
standards and would not be benefited by discharge to the sanitary sewers and
wastewater treatment facilities provided.
USER CHARGEA charge levied on users of the wastewater collection and treatment
facilities as part of the sewer service charge for payment of operation and
maintenance of said facilities.
WASTEWATERThe spent water 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 be present.
WASTEWATER FACILITIESThe structures, equipment, and processes required to collect, carry
away, and treat domestic and industrial wastes and dispose of the effluent.
WASTEWATER TREATMENT WORKSAn arrangement of devices and structures for treating wastewater,
industrial wastes and sludge. Sometimes used as synonymous with "waste treatment."
WATERCOURSEA channel in which a flow of water occurs either continuously or
intermittently.
A sewer service charge is hereby imposed upon each lot, parcel of land,
building, or premises served by the sewerage system, or otherwise discharging
sewage, including industrial wastes, into the sewerage system. Such sewer
service charge shall be payable as hereinafter provided, and in an amount
determinable as follows:
A. The sewer service charge for any lot, parcel of land,
building, or premises within the corporate limits, and for any lot, parcel
of land, building or premises outside the corporate limits which is connected
to the sanitary sewer system, shall be based upon the quantity of water used
therein or thereon and quality of wastewater generated as measured by the
water meter or sewage meter in use as follows:
(1) Category A is defined as normal or domestic strength
wastewater having organic concentrations of biochemical oxygen demand (BOD)
no greater than 558 milligrams per liter (mg/l), total suspended solids concentrations
no greater than 558 mg/l, total kjeldahl nitrogen (TKN) concentrations no
greater than 74 mg/l, and total phosphorus concentrations no greater than
13 mg/l. See Appendix B, User Charge System Calculations, for methods used
to calculate Category A charge rates.
(a) The general format for the sewer service charge for Category
A wastewater is as follows:
| Category A Sewage |
---|
| TCA = FSC + VCA x V |
| Where: |
| TCA | = | Total monthly sewer service charge for Category A wastewater |
| FSC | = | Fixed service charge per user per month |
| VCA | = | Volume unit price in dollars per 1,000 gallons |
| V | = | Volume of wastewater per month in units of 1,000 gallons |
(b) The rates for Category A shall be updated periodically
to reflect changes in operating and capital cost requirements. The specific
user charge rates shall be adopted by City resolution.
(2) Category B is defined as high-strength wastewater
having organic concentration of biochemical oxygen demand (BOD) greater than
558 milligrams per liter (mg/l), total suspended solids concentrations greater
than 558 mg/l, total kjeldahl nitrogen (TKN) concentrations greater than 74
mg/l, or total phosphorus concentration greater than 13 mg/l.
(a) The general format for the sewer service charge for Category
B wastewater is as follows.
| Category B Sewage |
---|
| TCB = TCA + (Surcharge
x V) |
| Where: |
| TCB | = | Total monthly sewer service charge for Category B wastewater |
| TCA | = | Total monthly sewer service charge for Category A wastewater |
| Surcharge = [BOD x CBOD + TSS x CTSS
+ TKN x CTKN + P x CP] |
| Where: |
| BOD | = | Pounds of BOD in excess of normal strength domestic wastewater |
| CBOD | = | Cost per pound of BOD |
| TSS | = | Pounds of TSS in excess of normal strength domestic wastewater |
| CTSS | = | Cost per pound of TSS |
| TKN | = | Pounds of TKN in excess of normal strength domestic wastewater |
| CTKN | = | Cost per pound of TKN |
| P | = | Pounds of phosphorus in excess of normal strength domestic wastewater |
| CP | = | Cost per pound of phosphorus |
| V | = | Volume of wastewater per month in units of 1,000 gallons |
(b) The rates used for Category B wastewater shall be updated periodically
to reflect changes in operating and capital cost requirements. The specific
user charge rates shall be adopted by City resolution.
(3) Category C is defined as septage which has organic concentrations of biochemical oxygen demand (BOD) greater than 558 milligrams per liter (mg/l), total suspended solids concentration greater than 558 mg/l, total kjeldahl nitrogen (TKN) concentrations greater than 74 mg/l or total phosphorus concentrations greater than 13 mg/l. Sewer service charges for Category C wastewater shall be determined and collected pursuant to Article
III of this chapter (pertaining to on-site waste disposal at the Lodi wastewater treatment plant).
(4) A discount will be granted from the volume charge for
any sewer service users who account for metered water used for irrigation,
air conditioning, steam generating, cooling, ice rinks, or other purposes
which are not discharged into the sanitary sewer system. To qualify for the
discount, a meter for such diverted water usage must be installed and maintained
at the expense of the user (including the cost of the meter, installation
and maintenance), with the type of meter and method of installation to be
approved by the City. The discount will be based on the amount of water so
diverted from the sanitary sewer system.
B. Reassignment of sewer users. The approving authority
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.
C. On-site waste disposal. Charges for on-site waste disposal, including but not limited to disposal of septage and holding tank waste (as theses terms are defined in Article
III, §
272-20 of this chapter), shall be determined and collected pursuant to Article
III of this chapter (pertaining to on-site waste disposal at the Lodi wastewater treatment plant).
The City of Lodi, through its duly qualified officers, reserves the
right to amend this article in part or in whole whenever a different category
of user comes into existence or wherever it may deem necessary.