Within three months of the promulgation of a National Categorical Pretreatment Standard, the industrial wastewater discharge permit of users subject to such standards shall be revised to require compliance with such standards within the time frame prescribed by such standard. Where a user subject to a newly promulgated National Categorical Pretreatment Standard had not previously submitted an application for an industrial wastewater discharge permit as required by §
523-16, the user shall apply for an industrial wastewater discharge permit within 180 days after the promulgation of the applicable National Categorical Pretreatment Standard. In addition, the user with an existing industrial wastewater discharge permit shall submit to the Executive Director within 180 days after the promulgation of an applicable National Categorical Pretreatment Standard, the information required by §
523-18B(9) and
(10).
Class II and IV users that discharge or have the potential to discharge significant quantities of oil and grease or sediment, as determined by the WVSA, shall install and properly operate and maintain a grease trap or sediment trap (or both when necessary) satisfactory to the WVSA as required by its rules and regulations. Proper operation and maintenance of grease and sediment traps includes, but is not limited to, removal of accumulated grease or sediment on a routine basis and maintenance of documentation of such activity pursuant to §
523-27. Failure to timely install, or to properly operate or maintain a grease or sediment trap required by this chapter shall be a violation of this chapter and may result in the rescission or suspension of the right to discharge wastewater to the sewer system, whether or not a permit has been issued by the WVSA.
Users required or choosing to install grease traps or sediment
traps shall apply to the WVSA for a list of standard construction
design criteria as prepared by and available through the WVSA's
Engineering Department in accordance with current pretreatment design
requirements. Users may deviate from standard construction design
criteria only with permission of the Executive Director.
The Municipality and the WVSA may inspect the facilities of
any nondomestic user to ascertain whether the purpose of this chapter
is being met and all requirements are being complied with. Persons
or occupants of premises where wastewater other than domestic sewage
is created or discharged shall allow representatives of the Municipality
and WVSA ready access at all reasonable times to all parts of the
premises for the purposes of inspection, sampling, records examination
and/or copying, or in the performance of any of their duties. The
Municipality, WVSA, PADEP and/or the EPA shall have the right to set
up on the nondomestic user's property such devices as are necessary
to conduct sampling, inspection, compliance monitoring and/or metering
operations. Where a user has security measures in force which would
require proper identification and clearance before entry into its
premises, the user shall make necessary arrangements with its security
personnel so that upon presentation of suitable identification, representatives
of the Municipality, WVSA, PADEP and/or the EPA will be permitted
to enter, without delay, for the purposes of performing their specific
responsibilities.
The volume of flow used in computing loadings or surcharges
shall be based on the total water consumption data as obtained from
the permittee or the records of the local water utility. If a user
has a substantial portion of the metered water that does not reach
the sanitary sewer system the user may, at its own expense, and with
approval from the Executive Director, install a separate flow metering
device to measure the actual discharge into the sanitary system. If
the actual flow to the sanitary system is measured, the equipment
used for the measurement of the flow must be maintained in proper
working order at all times. A separate written record of calibration
and maintenance must be kept for the flow metering device and made
readily available for inspection by the WVSA.
The WVSA may conduct periodic monitoring of the following types:
A. Scheduled or unscheduled sampling and inspections of the user's
facilities and records shall be conducted at all Class I users at
least once each year.
B. Additional sampling or inspections may be conducted whenever the
WVSA determines a need to investigate the discharges of a user.
C. Demand sampling and inspections may be performed in response to a complaint or an unusual or emergency situation, such as when the WVSA determines a change in the normal discharge characteristics of the user's wastewater flow, if a violation was detected during sampling or self-monitoring under §
523-27, if problems that may be attributable to the user's discharge occur in the sewer system or WVSA facilities, or if a complaint or report of noncompliance is received by the Municipality or WVSA.
D. If the WVSA performs routine compliance sampling of a user in lieu of the self-monitoring provisions of §
523-27, the WVSA shall be subject to the repeat sampling requirement of §
523-27B in the case that a violation of any pretreatment standard or requirement is detected.
E. All discharge sampling and analyses conducted by WVSA shall be in accordance with the sampling and analysis requirements for user self-monitoring in §
523-27.
In the case of a nondomestic user that, for reasons of emergency
maintenance, equipment failure, or other similar unforeseen event
beyond the user's reasonable control, must discharge prohibited,
high strength, or other wastewater of unusual strength, character
or volume, the user may apply to the Executive Director for an emergency
discharge permit. The Executive Director may issue such a permit,
on terms and conditions as he deems appropriate, upon his review of
the information provided and in his sole discretion. No discharge
of the unusual wastewater may be made until and unless an emergency
discharge permit has been issued. An emergency discharge permit shall
not be issued for longer than 30 days and may be renewed only after
a new application has been made.