Users must provide wastewater treatment as necessary to comply with this chapter and to achieve compliance with all Categorical Pretreatment Standards, local limits, and the prohibitions set out in Section
13.40.060 of this chapter within the time limitations specified by EPA, the State, or the pretreatment coordinator, whichever is more stringent. Any facilities necessary for compliance must be provided, operated, and maintained at the user's expense. Detailed plans describing such facilities and operating procedures must be submitted to the pretreatment coordinator for review, and must be acceptable to the pretreatment coordinator before those facilities are constructed. The review of plans and operating procedures does not relieve the user from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to the city under the provisions of this chapter.
(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
A. Whenever
necessary in his or her judgment, the pretreatment coordinator may
require users to restrict their discharge during peak flow periods,
designate that certain wastewater be discharged only into specific
sewers, relocate and/or consolidate points of discharge, separate
sewage-waste streams from industrial-waste streams, and impose any
other conditions that may be necessary to protect the POTW and ensure
the user's compliance with the requirements of this chapter.
B. The
pretreatment coordinator may require any person discharging into the
POTW to install and maintain, on their property and at their expense,
a suitable storage and flow-control facility to ensure equalization
of flow. An individual wastewater discharge permit or a general permit
may be issued for the purpose of flow equalization.
C. Grease,
oil, and sand interceptors must be provided when, in the opinion of
the pretreatment coordinator, any or all are necessary for the proper
handling of wastewater containing excessive amounts of grease and
oil, or sand; except that such interceptors shall not be required
for residential users. All interception units must be of a type and
capacity approved by the pretreatment coordinator and must be so located
to be easily accessible for cleaning and inspection. These interceptors
must be inspected, cleaned, and repaired by the user at user's expense.
D. The
pretreatment coordinator may require users with the potential to discharge
flammable substances to install and maintain an approved combustible
gas detection meter.
(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
The pretreatment coordinator must evaluate whether each significant
industrial user needs an accidental discharge or slug discharge control
plan or other action to control slug discharges. The pretreatment
coordinator may require any user to develop, submit for approval,
and implement such a plan or take such other action that may be necessary
to control slug discharges. Alternatively, the pretreatment coordinator
may develop such a plan for any user. An accidental discharge or slug
discharge control plan must include, at a minimum, the following:
A. Description
of discharge practices, including nonroutine batch discharges;
B. Description
of stored chemicals;
C. Procedures for immediately notifying the pretreatment coordinator of any accidental or slug discharge, as required by Section
13.40.370 of this chapter; and
D. Procedures
to prevent adverse impact from any accidental or slug discharge.
The procedures to be described include, but are not limited
to, inspection and maintenance of storage areas, handling and transfer
of materials, loading and unloading operations, control of plant site
runoff, worker training, building of containment structures or equipment,
measures for containing toxic organic pollutants, including solvents,
and/or measures and equipment for emergency response.
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(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
Septic-tank waste may be introduced into the POTW only at locations
designated by the pretreatment coordinator, and only at times as are
established by the pretreatment coordinator. Septic waste must not
violate Article 2 or any other requirements established by the city.
The pretreatment coordinator may require septic-tank-waste haulers
to obtain individual wastewater discharge permits or general permits
or deny septage receiving at any time for any reasonable cause.
The pretreatment coordinator may require haulers of industrial
waste to obtain individual wastewater discharge permits or general
permits. The pretreatment coordinator may require generators of hauled
industrial waste to obtain individual wastewater discharge permits
or general permits. The pretreatment coordinator in his or her discretion
also may prohibit the disposal of hauled industrial waste. The discharge
of hauled industrial waste is subject to all other requirements of
this chapter.
Industrial waste haulers may discharge loads only at locations
designated by the pretreatment coordinator. No load may be discharged
without prior consent of the pretreatment coordinator. The pretreatment
coordinator may collect samples of each hauled load to ensure compliance
with applicable Standards. The pretreatment coordinator may require
the industrial waste hauler to provide a waste analysis of any load
prior to discharge.
Industrial waste haulers must provide a waste-tracking manifest
for every load. This manifest must include, at a minimum, the name
and address of the industrial waste hauler, permit number, truck identification,
names and addresses of sources of waste, and volume and characteristics
of waste. The form shall identify the type of industry, known or suspected
waste constituents, and whether any wastes are RCRA hazardous wastes.
(Ord. 757 § 3, 2010; Ord. 816 § 4, 2019)
A. Interceptors.
Grease, oil and sand interceptors must be provided when, in the opinion
of the public works director or the pretreatment coordinator. They
are necessary for the proper handling of wastewater containing excessive
amounts of grease and oil, or sand; except that such interceptors
are not required for residential users. All interception units shall
be of a type and capacity approved by the public works director or
pretreatment coordinator and must be located to be easily accessible
for cleaning and inspection. All interception units must be installed
in accordance with the provisions of this chapter. These interceptors
must be inspected, cleaned, and repaired regularly, as needed, by
the owner at his or her sole expense. New and existing users that
are determined by the public works director or pretreatment coordinator
to have a reasonable potential to adversely impact the POTW must install
a grease, oil or sand interceptor.
1. Users
that are required to have a grease interceptor may be required to
connect fixtures or drains that have a reasonable potential to allow
fats, oils, and grease to be discharged to the POTW to an appropriately
sized grease interceptor.
2. Users
with garbage grinders must discharge the garbage grinder to a grease
interceptor with a minimum capacity of one thousand gallons or remove
the garbage grinder.
3. Users
with dishwashers must discharge the dishwasher directly to the POTW
or to a grease interceptor with a minimum capacity of seven hundred
fifty gallons.
4. Accumulated
grease and sediment must be removed as required. At a minimum gravity
grease interceptors and grease traps must be cleaned when the combined
depth of sediment and grease equals or exceeds twenty-five percent
of the total depth of the sediment, water, and grease. For multiple
chambered interceptors the measurements of sediment and grease are
to be performed in the final interceptor chamber prior to discharge.
All other grease interceptors must be maintained in accordance with
the manufacturer's specifications.
5. Grease
interceptors must be kept free of non-food waste including, but not
limited to, grit, rocks, gravel, sand, eating utensils, cigarettes,
trash, towels, and rags.
6. The
addition of chemicals, enzymes, emulsifiers, live bacteria or other
grease cutters or additives used for purposes of grease reduction
to a grease interceptor is specifically prohibited.
7. If
the public works director or pretreatment coordinator determines that
a grease interceptor is not being adequately cleaned or maintained,
a correction notice may be issued requiring the deficiency be corrected
within seven working days. Maintenance programs including BMPs and
defined cleaning frequencies may be mandated. Users that fail to adhere
to a maintenance program may be required to install additional pretreatment
devices.
8. The
city will develop and implement a fats, oils, and grease policy.
B. Time
of Compliance. All commercial facilities and food establishments described
in this section are required to install a sand and/or grease interceptor
or grease trap within the sixty-day period after the first occurrence
of any of the following events:
1. Transfer
of any ownership or interest in the commercial facility;
2. The
issuance by the county of any building permit for the construction,
reconstruction or related work to be performed on the premises costing
more than five thousand dollars;
3. The
backup or discharge of raw sewage on or from the premises due to grease
build up in their service lateral; or within
4. Ninety
days after receiving written notice from the public works director
or pretreatment coordinator of the necessity for installation of such
facilities.
C. Monitoring
and Reporting. All establishments having a grease trap or interceptor
must maintain and clean this unit as recommended by the manufacturer.
Each grease trap or interceptor must be regularly maintained by the
proprietor or property owner and records kept at the site for inspection
by the city. Maintenance will vary depending upon the size of the
unit and grease loading. The property owner or proprietor must send
a copy of the maintenance records to the city annually from the time
of installation or some other agreed upon date by the city. At no
time may the unit be allowed to become clogged with grease so as to
create damage to the city collection or treatment facilities. The
proprietor must develop a cleaning schedule sufficient to keep the
unit functioning properly. Records of grease disposal to a collection
agent must be made available to city personnel upon request.
D. Responsibility
of Tenants. Where an owner of property lets premises to any other
person as a tenant, if either the owner or the tenant is an industrial
user, either or both may be held responsible for compliance with the
provisions of this chapter. This provision is enforceable against
the either or both the owner, tenant or both, without regard to any
contractual arrangements as between the owner and tenant.
E. Pretreatment
Charges and Fees. The city council may adopt reasonable charges and
fees for reimbursement of costs of setting up and operating the city's
pretreatment program which may include:
1. Fees
for wastewater discharge permit applications including the cost of
processing such applications.
2. Fees
for monitoring, inspection, and surveillance procedures including
the cost of collection and analyzing an industrial user's discharge,
and reviewing monitoring reports submitted by the users.
3. Fees
for reviewing and responding to accidental discharge procedures and
construction.
5. Other
fees that the city finds to be necessary to carry out the requirements
contained in this section. These fees relate solely to the matters
covered by this chapter and are separate from all other fees, finest
and penalties chargeable by the city.
(Ord. 757 § 3, 2010; Ord. 767 § 3, 2012; Ord. 816 § 4, 2019)