A.
It shall be unlawful for any person to place, deposit or permit to
be deposited any sewage, except non-contact cooling waters, on the
ground surface of any public or private property within the jurisdiction
of the City.
B.
It shall be unlawful to discharge any sewage except noncontact cooling
waters to any natural outlet within the jurisdiction of the City,
except where authorized by the DNR.
C.
Except as provided for in Section 9.02.22., it shall be unlawful
to construct or maintain any privy, privy vault, septic tank, cesspool
or other facility intended or used for the disposal of sewage.
D.
The owner of all houses, buildings or properties used for human occupancy,
employment, recreation or other purposes situated within the jurisdiction
of the City and abutting on any street, alley or right-of-way in which
there is located a sanitary sewer is hereby required, at their expense,
to install suitable toilet facilities therein and to connect such
facilities directly with the public sewer collection system in accordance
with the provisions of this section within a period determined by
the City Engineer but in no event more than one year and to pay such
connection charges as may be established herein or by other ordinance.
A.
Where a sanitary sewer is not available, the building sewer shall
be connected to a private, individual sewage system complying with
the provisions of this section.
B.
Before commencement of construction of a private sewage system, the
owner shall first obtain a written permit signed by the City Engineer.
The application for such permit shall be made on a form furnished
by the City, which the applicant shall supplement by any plans, specifications
and/or other information as is deemed necessary by the City Engineer.
The application fee is located within the City Fee Schedule and is
due at the time the application is filed.
C.
A permit for a private sewage system shall not become effective until
the installation is completed and approved by the City Engineer or
designee. The City Engineer or designee shall be allowed to inspect
the work at any stage of construction; and in any event, the applicant
for the permit shall notify the City Engineer or designee when the
work is ready for final inspection and before any underground portions
are covered. The inspection shall be made within 48 hours of the receipt
of notice by the City Engineer or designee.
D.
The type, capacity, location and layout of a private, individual
sewage disposal system shall comply with § NR 214.16, Wis.
Adm. Code.
E.
At such time as a sanitary sewer becomes available to a property served by a private sewage system, as provided in Section 9.02.21D, a direct connection shall be made to the sanitary sewer in compliance with this section, and any septic tanks, cesspools and similar private or individual sewage facilities shall be abandoned in accordance with § NR 214.16, Wis. Adm. Code.
A.
No authorized person shall alter, disturb or uncover any connections
with or opening into any sanitary sewer or appurtenance thereof without
first obtaining written permission from the City Engineer.
B.
Permits and charges:
2.
In either case, the owner or their representative shall make application
on a special form furnished by the City. The permit application shall
be supplemented by any plans, specifications or other information
considered pertinent in the judgment of the Superintendent.
3.
For each sewer and water inspection, there shall be a permit fee
as set forth in the City of Onalaska Fee Schedule In addition, there
shall be a charge pursuant to the project's value. This fee is to
be applicable for installation and inspection for connections to the
main or end of the lateral at the curb to the buildings, as well as
for septic tank and dry well installations, also for each tap and
water service pipe connected to the City water main, including fire
protection services.
C.
Sewer laterals. All costs for the installation, connection,
maintenance, and replacement of sewer laterals connected to City mains
and interceptors shall be the responsibility of the property owner.
The property owner shall indemnify the City from any loss or damage
that may directly or indirectly be occasioned by the installation
and upkeep of the sewer lateral.
[Amended 3-8-2022 by Ord. No. 1726-2022]
D.
A separate and independent building sewer shall be provided for every
building, except where one building stands at the rear of another
on an interior lot and no individual sewage system is available or
can be constructed to the rear building through an adjoining alley,
court, yard or driveway. The building sewer from the front building
may be extended in such cases to the rear building and the whole considered
as one building sewer.
E.
Old building sewers may be used in connection with new buildings
only when they are found, on examination and test by the City Engineer
or designee, to meet all requirements of this section.
F.
The size, slope, alignment, materials of construction of a building
sewer, and the methods to be used in excavating, placing of the pipe,
jointing, testing and backfilling the trench shall all conform to
the requirements of current State of Wisconsin Plumbing Code, except
that bituminous fiber pipe shall not be allowed.
G.
Whenever possible, the building sewer shall be brought to the building
at an elevation below the basement floor. In all buildings in which
any building drain is too low to permit gravity flow to the sanitary
sewer, sewage carried by such a building drain shall be lifted and
discharged to the building sewer by facilities conforming to current
State of Wisconsin Plumbing Code, Wis. Adm. Code.
H.
No person shall make connection of roof downspouts, exterior foundation drains, areaway drains, basement sump pumps or other sources of surface runoff or groundwater to the building sewer or building drain which, in turn, is connected directly or indirectly to a sanitary sewer. If such connections are found during an inspection by the City Engineer or designee, the penalty provisions of Section 9.02.14[1] are applicable.
[1]
Editor's Note: So in original.
I.
The connection of the building sewer into the sanitary sewer shall conform to the requirements of Section 9.02.23F above.
J.
The applicant for the building sewer permit shall notify the City
Engineer or designee when the building sewer is ready for inspection
and connection to the sanitary sewer. The connection shall be made
under the supervision of the City Engineer or designee.
1.
All excavations for building sewer installation shall be adequately
guarded with barricades and lights so as to minimize the hazard to
public welfare and safety. Streets, sidewalks, parkways and other
public property disturbed in the course of the work shall be restored
in a manner satisfactory to the City.
2.
Where sanitary sewer construction requires excavation of streets
or sidewalks, the applicant shall be required to obtain a permit for
excavation from the City Engineering Department.
K.
All building sewers, both new and existing, shall be maintained in such condition as to prevent inflow or infiltration of unpolluted waters from the groundwater table, storm runoff or other sources. If, during an inspection defined in Section 9.02.13B of this Title, upon plugging the building sewer at or near its point of entry into the sanitary sewer, unpolluted water should be observed by the City Engineer or designee to back up into the building being served, the building sewer shall be declared defective and correction shall be ordered under Section 9.02.14.
A.
All industrial users subject to categorical standards or required
to pretreat industrial waste who discharge or propose to discharge
wastewaters to the wastewater collection system shall maintain such
records of production and related factors, effluent flows and pollutant
amounts or concentrations as are necessary to demonstrate compliance
with the requirements of this division and any applicable state or
federal pretreatment standards or requirements.
B.
The owner or operator of any premises or facility discharging industrial
wastes subject to categorical pretreatment standards or required to
pretreat industrial waste shall install, at their own cost and expense,
suitable monitoring equipment to facilitate the accurate observation,
sampling and measurement of wastes. Such equipment shall be maintained
in proper working order and kept safe and accessible at all times.
C.
Industrial records relating to wastewater discharges shall be available
upon request by the City. All treatment standards shall be made available
to officials of the U.S. Environmental Protection Agency or the Wisconsin
Department of Natural Resources upon demand.
D.
Monitoring equipment shall be located and maintained on the industrial
user's premises outside of the building. When such a location would
be impractical or cause undue hardship on the user, the City may allow
modifications as necessary.
E.
When more than one user can discharge into a common sewer, the City
may require the installation of separate monitoring equipment for
each user. Where there is a significant difference in wastewater constituents
or characteristics produced by different operations of a single user,
the City may require that separate monitoring facilities be installed
for each separate discharge.
F.
Whether constructed on public or private property, the monitoring
facilities shall be constructed in accordance with the City's requirements
and all applicable construction standards and specifications.
A.
Compliance determinations with respect to Section 9.03.32C prohibitions
and limitations may be made on the basis of either instantaneous grab
samples or composite samples of wastewater. Composite samples may
be taken over a twenty-four-hour period or cover a longer or shorter
time span, as determined necessary by the City to meet the needs of
specific circumstances.
B.
Laboratory analysis of industrial wastewater samples shall be performed
in accordance with the current edition of "Standard Methods," "Methods
for Chemical Analysis of Water and Waste," published by the U.S. Environmental
Protection Agency, or the "Annual Book of Standards, Part 23, Water,
Atmospheric Analysis," published by the American Society for Testing
and Materials.
C.
Sampling of industrial wastewater for the purpose of compliance determination
with respect to Section 9.03.32C prohibitions and limitations will
be done at intervals as the City may designate. However, it is the
intention of the City to conduct compliance sampling or to cause such
sampling to be conducted for all industrial users subject to categorical
standards or required to pretreat industrial wastes at least once
per year.
A.
Purpose. The purpose of this section is the regulation
of the collection and disposal of grease interceptor waste for the
protection of the City sanitary sewer system and the environment.
The objective of this section is to reduce the operational and maintenance
costs to the City of maintaining the sanitary sewer system by preventing
the accumulation of grease within the collection system lines. This
section shall apply to the City of Onalaska and to persons outside
the City who, by contract, agreement or otherwise with the City, are
users of the City's sanitary sewer. This section shall be in addition
to any restrictions, regulations or prohibitions set forth in Section
9.03.32.
B.
Administration. The City of Onalaska shall administer,
implement, and enforce the regulations of this section.
C.
Applicability.
1.
Waste that contains grease shall be discharged into the sanitary
sewer system only under the conditions of this division. The following
facilities shall discharge all waste from sinks, dishwashers, drains,
and any other fixtures through which grease may be discharged into
an adequately sized, properly maintained and functioning grease interceptor
before the discharge enters the sanitary sewer. The following facilities
shall also provide a grease interceptor(s), inlet flow control device,
inspection port and a grease interceptor effluent monitoring port.
2.
Every commercial food preparation and food service facility, including
but not limited to bakeries, cafes, commercial kitchens, delicatessens,
ice cream parlors, hospitals, restaurants, schools, and similar facilities,
especially where meat, poultry, seafood, dairy products or fried foods
are prepared or served:
a.
All shopping centers that have food-processing facilities;
b.
All food courts;
c.
All other facilities discharging grease in amounts that, in
the opinion of the City of Onalaska, will, alone or in combination
with other substances from the discharges of the same or other facilities,
have a reasonable chance to inhibit the flow in the sanitary sewer;
d.
All new areas of intensified use or dwelling, including, but
not limited to, adult day-care facilities, assisted living facilities,
convalescent homes, day nursing and child-care facilities in which
food preparation occurs, homes for the mentally challenged, hotels,
maternity homes, motels in which there is a commercial food preparation
service, nursing homes, retirement and life-care communities and homes,
and truck stops with commercial food service, shall be required to
have grease interceptors. Modifications to existing facilities that
do not add new buildings or new grease-generating activities are exempt
from this requirement; and
e.
Interceptors shall not be required for single-family residences,
duplexes, triplexes, quadplexes, or apartment complexes unless the
City first determines there are discharges from the property that
may create problems in the sanitary sewer system. The determination
shall be made based upon an investigation of the property and a comparison
of the content and amount of discharge from the property with the
discharges of other properties similar in size and use. Upon a determination
that the discharges may create problems in the sanitary sewer system,
the City may require the installation of a sufficiently sized grease
interceptor to treat the discharges.
D.
Compliance and time line.
1.
On or after the effective date of the ordinance codified in this
section, an existing facility shall be required to install an approved,
adequately sized, and properly operated and maintained grease interceptor
when any of the following conditions exist:
a.
It is found by the City of Onalaska to be contributing grease
in potential quantities sufficient to inhibit sanitary sewer flow
or necessitate increased maintenance on the sanitary sewer collection
system in order to keep impairments to the main line flow from occurring.
b.
It is remodeling the food preparation or kitchen waste plumbing
facilities in such a manner to be subject to a permit issued by the
Inspection Department.
c.
Its interceptor allows a discharge of oil or grease in excess
of 250 mg/l.
2.
New facilities required by this or other applicable ordinances to
maintain a grease interceptor shall install such a unit prior to commencement
of discharge to the sanitary sewer system.
3.
Any requests for extensions to installation dates must be made, in
writing, to the City of Onalaska at least 30 days in advance of the
compliance date. The written request shall include the reasons for
the facility's failure or inability to comply with the compliance
date set forth, the additional time needed to complete the remaining
work, and the steps to be taken to avoid future delays. The City of
Onalaska shall determine the date for compliance.
4.
Existing facilities required by this or other applicable ordinances
to maintain a grease interceptor that demonstrate that the installation
of a grease trap is not feasible may use bioremediation as an alternative.
The City of Onalaska will determine whether a facility may exercise
this option for sanitary sewer maintenance. The bioremediation method
and product must be approved by the City of Onalaska, in writing,
prior to use in the drainage system. In addition, the operator must
maintain written documentation of a current contract with a bioremediation
supplier approved through the City of Onalaska.
E.
Discharge criteria.
1.
Where oil and grease are a by-product of food preparation and/or
cleanup, reasonable efforts shall be made to separate waste oil and
grease into a separate container for proper disposal. Except as contained
in by-products of food preparation and/or cleanup, waste oil and grease
shall not be discharged to any drains or grease interceptors. Such
waste shall be placed in a container designed to hold such waste and
either utilized by industry or disposed of at suitable locations.
2.
None of the following agents shall be placed directly into a grease
interceptor or into any drain that leads to the interceptor:
a.
Emulsifiers, de-emulsifiers, surface active agents, enzymes,
degreasers, or any type of product that will liquefy grease interceptor
wastes;
b.
Any substance that may cause excessive foaming in the sanitary
sewer system; or
c.
Any substance capable of passing the solid or semisolid contents
of the grease interceptor to the sanitary sewer system.
3.
The influent to interceptors shall not exceed 150° F. The temperature
at the flow control device inspection port shall be considered equivalent
to the temperature of the influent.
4.
Toilets, urinals, and other similar fixtures shall not discharge
through a grease interceptor.
5.
Waste shall only enter the grease interceptor through the inlet flow
control device.
6.
Where food-waste grinders are installed, the waste from such units
shall discharge directly into the building drainage system without
passing through a grease interceptor. Living quarters are exempted
from this requirement.
F.
Requirements for grease interceptors.
1.
The operator must apply for all necessary permits prior to installation
of any grease trap or interceptor.
2.
The Plumbing Inspector assigned by the City will oversee the installation
of the trap or interceptor.
3.
Grease traps shall be installed a minimum distance of 10 feet from
sinks and dishwashers to allow for adequate cooling of wastewater.
Water temperatures must be less than 150° F. prior to entering
grease trap.
4.
Sample port. A sample port shall be installed on the effluent line
of each grease trap. The port shall be a minimum of six inches in
diameter and be connected to the sewer line at a ninety-degree angle
to allow for sampling activities. The port shall be installed in such
a manner as to be protected from stormwater contamination and maintained
in a safe and proper operating condition. The plug on the sample port
must be easily removable.
G.
Interceptor maintenance.
1.
It shall be unlawful for a grease or grit generator to allow grease
or grit interceptor waste to be removed from their premises by a transporter
who does not have all applicable federal, state, or local permits
or registrations, including any permit required by the City of Onalaska.
If a vacuum truck company is used to remove the grease from the interceptor
or trap, the following information must be kept on file with the operator
and submitted to the City of Onalaska.
a.
The vacuum truck company name, address, and telephone number;
b.
The name of a primary and secondary contact person at the vacuum
truck company;
c.
The City of Onalaska/La Crosse County Health Department permit
number;
d.
Be signed and dated by an authorized representative of the vacuum
truck company indicating acceptance of the terms of the contract;
e.
The name, address, and telephone number of the disposal site;
and
f.
The signature of the facility representative present when the
grease trap was cleaned.
2.
The vacuum truck company shall provide a certificate of insurance,
certificate of assurance, and certificate of indemnification to the
City of Onalaska.
3.
Facilities are responsible for maintaining grease traps in continuous
proper working condition. Further, facilities are responsible for
inspecting, repairing, replacing, or installing apparatus and equipment
as necessary to ensure proper operation and function of grease traps
and compliance with discharge limitations at all times.
4.
Records of maintenance are required to be maintained on site for
three years (ninety-day maintenance frequency assumes proper sizing
and installation consistent with this guidance).
5.
The facility shall maintain adequate documentation that the grease
interceptor is appropriately cleaned and inspected.
H.
Required pumping frequency.
1.
Unless otherwise specified, in writing, by the City of Onalaska,
each grease interceptor in active use shall be cleaned at least once
every calendar quarter or more frequently as needed to prevent carryover
of grease into the sanitary sewer system, unless it is demonstrated
to the City that the pumping frequency can be performed at greater
intervals without impairment of the operation of the public sewer.
The City of Onalaska may specify cleaning more frequently when quarterly
pumping is determined, by the City, to be inadequate. Any grease generator
desiring a schedule less frequent than quarterly shall submit a request
to the City of Onalaska.
2.
The facility shall be responsible for providing such additional pumping
as needed.
3.
All grease interceptors shall be maintained by the facility at the
facility's expense.
I.
Interceptor maintenance log. Every facility having a
grease interceptor shall maintain an interceptor maintenance log indicating
each pumping for the previous three years. This log shall include
the date, time, amount pumped, hauler and disposal site, initials
of individual recording the information, and shall be kept in a conspicuous
location on the premises of the facility for inspection. Said log
shall be made immediately available to any authorized inspector.
J.
Fees.
1.
The City, with the approval of the City Council, has the option to
establish permit fees under this section in the City Fee Schedule.
2.
The fees for such permits shall be for a permit issued for a period
of one year. The control authority may prorate the amounts for permits
with shorter durations. All permits will expire at 12:00 midnight
on the date specified on the permit as determined by the City.
K.
Violation.
1.
It is unlawful for any person and/or facility to discharge into the
sanitary sewer system in any manner that is in violation of this division
or of any condition set forth in this division. No person shall cause
or permit the plugging or blocking of, or otherwise interfere with
or permit the interference of the operation of, a grease interceptor
or the sanitary sewer system, including alteration or removal of any
flow-constricting devices so as to cause flow to rise above the design
capacity of the interceptor.
2.
No person and/or facility shall discharge grease in excess of 250
mg/l to the sanitary sewer system.
3.
The City of Onalaska may suspend water or sewer service when such
suspension is necessary, in the opinion of the La Crosse Count Health
Department and/or City, in order to stop an actual or threatened discharge
which:
a.
Presents or may present an imminent or substantial endangerment
to the health or welfare of persons or the environment;
b.
Causes or may cause stoppages or excessive maintenance to be
required to prevent stoppages in the sanitary sewer collection system;
c.
Causes interference to the sanitary sewer system; or
d.
Causes the City to violate any condition of its NPDES community
discharge permit.
4.
Any person notified of a suspension of the water or sewer service
shall immediately stop or eliminate the discharge. In the event of
a failure of the person to comply voluntarily with a suspension order,
the City may take such steps as deemed necessary, including immediate
termination of water or sewer service, to prevent or minimize actual
or threatened damage to the sanitary sewer system or sewer connection
or endangerment to any individuals. The City shall reinstate the water
or sewer service upon receipt of proof that such conditions causing
the suspension have passed or been eliminated. A detailed written
statement submitted by the facility describing the cause(s) of the
harmful discharge and the measure(s) taken to prevent any future occurrence
shall be submitted to the City within 15 days of the date of occurrence.
5.
Any person who violates any provision of this section, or who shall
fail to comply with any provision hereof, shall be guilty of a misdemeanor
and, upon conviction, shall be subject to a fine of not more than
$500 for each violation and each day a violation continues, shall
constitute a separate offense and shall be punished accordingly.
6.
In addition to any applicable fines or penalties, a violator shall
be liable to the City for any expense, loss, or damage occasioned
by the City for cleanup and proper disposal of said materials. The
violator shall be further required to pay an administrative fee equal
to 1/2 of assessed cleanup costs.
7.
The City has the option to take additional action against any facility
that has caused three or more sanitary sewer blockages in one calendar
year due to excess grease accumulation.
