A.
Pretreatment facilities. Users shall provide wastewater treatment as necessary to comply with this chapter and shall achieve compliance with all categorical pretreatment standards, local limits, and the prohibitions set out in § 249-6 within the time limitations specified by EPA, the state, or Control Authority, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated, and maintained at the user's expense. Detailed plans describing such facilities and operating procedures shall be submitted to the Control Authority for review, and shall be acceptable to the Control Authority before such facilities are constructed. The review of such plans and operating procedures shall in no way 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.
B.
Additional pretreatment measures. Whenever deemed necessary, the
Control Authority 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 such
other conditions as may be necessary to protect the POTW and determine
the user's compliance with the requirements of this chapter.
C.
If the Control Authority determines that a waste from any significant
industrial user poses a potential for pass-through or interference
due to the quality or quantity of the discharge, the Control Authority
may place special requirements or limits, in addition to or more stringent
than those contained in this part, in any industrial waste discharge
permit to prevent such pass-through or interference. Such individual
control limits may include but are not limited to solvent/organic
management plans (STOMPs), toxic reduction evaluation plans (TREs),
hazardous waste disposal plans, slug discharge control plans or more
stringent specific numerical limitations on substances.
D.
Where preliminary treatment or flow equalizing facilities are provided
for any water or wastes, they shall be maintained continuously in
satisfactory and effective operation by the owner, at his/her expense,
and shall be accessible for inspection and testing by the Control
Authority. The Director may require any person discharging into the
POTW to install and maintain, on his/her property and at his/her expense,
a suitable storage and flow-control facility to ensure equalization
of flow. An individual wastewater discharge permit may be issued solely
for flow equalization.
E.
No person shall ever increase the use of process water or in any
way attempt to dilute a discharge as a partial or complete substitute
for adequate pretreatment to achieve compliance with a discharge limitation
unless expressly authorized by an applicable pretreatment standard
or requirement. The Director may impose mass limitations on users
who are using dilution to meet applicable pretreatment standards or
requirements, or in other cases when the imposition of mass limitations
is appropriate.
F.
Except as otherwise provided, discharge of grease trap wastes in
quantities that could, in the opinion of the City, cause interference
or pass-through at the sewage treatment plant or could otherwise cause
operational problems at the sewage treatment plant (including its
collection system) is prohibited. In addition, petroleum oil, nonbiodegradable
cutting oil or products of mineral oil origin in amounts causing interference
or pass-through at the sewage treatment plant is prohibited.
G.
Grease, oil and sand interceptors or traps shall be provided where,
in the opinion of the Control Authority and/or the Codes Office, they
are necessary for the proper handling of wastewater containing grease
in excessive amounts or any flammable wastes, sand or other harmful
ingredients; except that such interceptors shall not be required for
residential users. All interceptors shall be of a type and capacity
acceptable to the Control Authority, and shall be located as to be
readily and easily accessible for cleaning and inspection. Such interceptors
shall be inspected, cleaned, and repaired by the user at his/her expense.
The handling of fats, oil and grease (FOG) wastes shall be conducted
in a manner consistent with all City of Lancaster fats, oil and grease
policies and procedures, as may be promulgated from time to time.
H.
The use of mechanical garbage grinders producing a finely divided
mass, properly flushed with an ample amount of water, shall be permitted
upon the condition that no such mechanical garbage grinder to serve
premises used for commercial purposes shall be installed until permission
for such installation shall have been obtained from the Control Authority
upon written application therefor.
I.
Holding tank waste containing more than 2,000 mg/l solids may be
classified as septage or industrial sludge and shall meet the current
Pennsylvania guidelines for agricultural use of sewage sludge in order
to be accepted. Acceptance of this material may be contingent on the
status of any special equipment or operations required for treatment,
and the decision of acceptance shall be made by the Control Authority.
J.
Once included in its permit, the industrial user must comply with
the equivalent limitations developed in this part in lieu of the promulgated
categorical standards from which the equivalent limitations were derived.
K.
Many categorical pretreatment standards specify one limit for calculating
maximum daily discharge limitations and a second limit for calculating
maximum monthly average, or four-day average, limitations. Where such
standards are being applied, the same production or flow figure shall
be used in calculating both the average and the maximum equivalent
limitation.
L.
Any industrial user operating under a permit incorporating equivalent
mass or concentration limits calculated from a production-based standard
shall notify the Director within two business days after the user
has a reasonable basis to know that the production level will significantly
change within the next calendar month. Any user not notifying the
Director of such anticipated change will be required to meet the mass
or concentration limits in its permit that were based on the original
estimate of the long-term average production rate.
M.
Users with the potential to discharge flammable substances may be
required to install and maintain an approved combustible gas detection
meter.
A.
All significant industrial users shall provide and maintain, at their
own expense, facilities adequate, in the judgment of the Control Authority,
to prevent accidental discharge of prohibited and/or regulated substances
and/or slug discharges and to protect the sewerage system from damages
caused by such substances. No industrial user which commences discharge
to the sewerage system after the effective date of this section shall
be permitted to introduce pollutants into the sewerage system until
the Control Authority has reviewed and approved that user's accidental
discharge prevention or slug prevention procedures (if those procedures
are required by the Control Authority). If the Control Authority decides
that a slug control plan is needed, the plan shall contain, at a minimum,
the elements required in 40 CFR Part 403.8(f)(2)(vii).
B.
Accidental discharge/slug discharge control plans. The Control Authority
shall evaluate whether each SIU needs an accidental discharge/slug
discharge control plan or other action to control slug discharges.
The Control Authority 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 Director
may develop such a plan for any user. An accidental discharge/slug
discharge control plan shall address, at a minimum, the following:
(1)
Description of discharge practices, including nonroutine batch discharges;
(2)
Description of stored chemicals;
(3)
Procedures for immediately notifying the Director of any accidental
or slug discharge, as required by this chapter; and
(4)
Procedures to prevent adverse impact from any accidental or slug
discharge. Such procedures 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.
C.
In the case of an accidental discharge to the sewerage system of
any prohibited or regulated substance in such a quantity or concentration
that may result in a violation of this regulation, the user shall
immediately telephone and notify the Control Authority of the accident.
The notification shall include information regarding the location
of the discharge, the type of pollutants involved, the concentration
and volume of the discharge and corrective actions taken and/or contemplated.
D.
Within five working days following an accidental discharge, the user
shall submit to the Control Authority a detailed written report describing
the cause of the discharge and the measures to be taken by the user
to prevent similar future occurrences. Such notification shall not
relieve the user of any expense, loss, damage or other liability which
may be incurred as a result of damage to the sewerage system, fish
kills or any other damage to person or property, nor shall such notification
relieve the user of any fines, civil penalties or other liability
which may be imposed by this part or other applicable law.
A.
Residential, commercial or industrial property may be connected to
the separate storm sewer system or may continue discharging into the
separate storm sewer system, provided that the discharge conforms
to the following:
(1)
No person in the City of Lancaster shall allow, or cause to allow, stormwater discharges into the City's separate storm sewer system which are not composed entirely of stormwater, except as provided in Subsection A(2) below and discharges allowed under a state or federal permit. All discharges into separate storm sewers shall be in compliance with the laws or regulations of the Commonwealth of Pennsylvania, the federal government or any agency thereof having jurisdiction over streams, rivers, waterways or water resources, and this part.
(2)
Discharges which may be allowed, based on a finding by the City that
the discharge(s) do not significantly contribute to pollution to surface
waters of the commonwealth, are:
(a)
Air-conditioning condensate.
(b)
Lawn watering.
(c)
Discharges from fire-fighting activities (unless discharges
are suspected of containing toxic or hazardous materials).
(d)
Irrigation drainage.
(e)
Potable water sources, including dechlorinated waterline and
fire hydrant flushings.
(f)
Pavement wash waters where spills or leaks of toxic or hazardous
materials have not occurred (unless all spill material has been removed)
where detergents are not used.
(g)
Flows from riparian habitats and wetlands.
(h)
Routine external building washdown (which does not use detergents
or other compounds).
(i)
Sump pump discharges of groundwater.
(j)
Water from individual residential car washing.
(k)
Uncontaminated groundwater.
(l)
Uncontaminated water from foundation or from footing drains.
(m)
Dechlorinated swimming pool discharges.
(n)
Water from crawl space pumps.
(o)
Springs.
B.
Prohibited connections. The following connections are prohibited, except as provided in Subsection A(2) above:
(1)
Any drain or conveyance, whether on the surface or subsurface, which
allows any nonstormwater discharge, including sewage, process wastewater
and wash water, to enter the separate storm sewer system and any connections
to the storm drain system from indoor drains and sinks; and
(2)
Any drain or conveyance connected from a commercial or industrial
land use to the separate storm sewer system which has not been documented
in plans, maps or equivalent records and approved by the City.
