Virginia Administrative Code › Title 9 - ENVIRONMENT › Agency 25 - STATE WATER CONTROL BOARD › Chapter 31 - VIRGINIA POLLUTANT DISCHARGE ELIMINATION SYSTEM (VPDES) PERMIT REGULATION › Part VII - General Pretreatment Regulations for Existing and New Sources of Pollution › Section 9VAC25-31-840 - Reporting requirements for POTWs and industrial users

Current through Register Vol. 40, No. 24, July 15, 2024
A. (Reserved.)
B. Reporting requirements for industrial
				  users upon effective date of categorical pretreatment standard baseline report.
				  Within 180 days after the effective date of a categorical pretreatment
				  standard, or 180 days after the final administrative decision made upon a
				  category determination submission under
				  9VAC25-31-780 A 4, whichever is
				  later, existing industrial users subject to such categorical pretreatment
				  standards and currently discharging to or scheduled to discharge to a POTW
				  shall be required to submit to the control authority a report which contains
				  the information listed in subdivisions 1 through 7 of this subsection. At least
				  90 days prior to commencement of discharge, new sources and sources that become
				  industrial users subsequent to the promulgation of an applicable categorical
				  standard shall be required to submit to the control authority a report which
				  contains the information listed in subdivisions 1 through 5 of this subsection.
				  New sources shall also be required to include in this report information on the
				  method of pretreatment the source intends to use to meet applicable
				  pretreatment standards. New sources shall give estimates of the information
				  requested in subdivisions 4 and 5 of this subsection.
1. Identifying information. The user shall
				  submit the name and address of the facility including the name of the operator
				  and owners.
2. Permits. The user
				  shall submit a list of any environmental control permits held by or for the
				  facility.
3. Description of
				  operations. The user shall submit a brief description of the nature, average
				  rate of production, and standard industrial classification of the operation or
				  operations carried out by such industrial user. This description should include
				  a schematic process diagram which indicates points of discharge to the POTW
				  from the regulated processes.
4.
				  Flow measurement. The user shall submit information showing the measured
				  average daily and maximum daily flow, in gallons per day, to the POTW from each
				  of the following:
a. Regulated process
				  streams; and
b. Other streams as
				  necessary to allow use of the combined wastestream formula of
				  9VAC25-31-780 E. (See subdivision 5
				  d of this subsection.)
The control authority may allow for verifiable estimates of
					 these flows where justified by cost or feasibility considerations.
5. Measurement of
				  pollutants.
a. The user shall identify the
				  pretreatment standards applicable to each regulated process;
b. In addition, the user shall submit the
				  results of sampling and analysis identifying the nature and concentration (or
				  mass, where required by the standard or control authority) of regulated
				  pollutants in the discharge from each regulated process. Both daily maximum and
				  average concentration (or mass, where required) shall be reported. The sample
				  shall be representative of daily operations. In cases where the standard
				  requires compliance with a Best Management Practice or pollution prevention
				  alternative, the user shall submit documentation as required by the control
				  authority or the applicable standards to determine compliance with the
				  standard;
c. The user shall take a
				  minimum of one representative sample to compile that data necessary to comply
				  with the requirements of this subsection;
d. Samples shall be taken immediately
				  downstream from pretreatment facilities if such exist or immediately downstream
				  from the regulated process if no pretreatment exists. If other wastewaters are
				  mixed with the regulated wastewater prior to pretreatment, the user shall
				  measure the flows and concentrations necessary to allow use of the combined
				  wastestream formula of
				  9VAC25-31-780 E in order to
				  evaluate compliance with the pretreatment standards. Where an alternate
				  concentration or mass limit has been calculated in accordance with
				  9VAC25-31-780 E, this adjusted
				  limit along with supporting data shall be submitted to the control
				  authority;
e. Sampling and analysis
				  shall be performed in accordance with the techniques prescribed in 40 CFR Part
				  136 and amendments thereto. Where 40 CFR Part 136 does not contain sampling or
				  analytical techniques for the pollutant in question, or where the administrator
				  determines that the Part 136 sampling and analytical techniques are
				  inappropriate for the pollutant in question, sampling and analysis shall be
				  performed by using validated analytical methods or any other applicable
				  sampling and analytical procedures, including procedures suggested by the POTW
				  or other parties, approved by the administrator;
f. The control authority may allow the
				  submission of a baseline report which utilizes only historical data so long as
				  the data provides information sufficient to determine the need for industrial
				  pretreatment measures; and
g. The
				  baseline report shall indicate the time, date and place of sampling, and
				  methods of analysis, and shall certify that such sampling and analysis is
				  representative of normal work cycles and expected pollutant discharges to the
				  POTW
6. Certification. A
				  statement, reviewed by an authorized representative of the industrial user (as
				  defined in subsection M of this section) and certified to by a qualified
				  professional, indicating whether pretreatment standards are being met on a
				  consistent basis, and, if not, whether additional operation and maintenance (O
				  and M) or additional pretreatment, or both, are required for the industrial
				  user to meet the pretreatment standards and requirements.
7. Compliance schedule. If additional
				  pretreatment or O and M, or both, will be required to meet the pretreatment
				  standards, the shortest schedule by which the industrial user will provide such
				  additional pretreatment or O and M, or both. The completion date in this
				  schedule shall not be later than the compliance date established for the
				  applicable pretreatment standard.
a. Where the
				  industrial user's categorical pretreatment standard has been modified by a
				  removal allowance (9VAC25-31-790 ), the combined
				  wastestream formula (9VAC25-31-780 E), or a
				  fundamentally different factors variance (9VAC25-31-850 ), or any combination
				  of them, at the time the user submits the report required by this subsection,
				  the information required by subdivisions 6 and 7 of this subsection shall
				  pertain to the modified limits.
b.
				  If the categorical pretreatment standard is modified by a removal allowance
				  (9VAC25-31-790 ), the combined
				  wastestream formula (9VAC25-31-780 E), or a
				  fundamentally different factors variance (9VAC25-31-850 ), or any combination
				  of them, after the user submits the report required by this subsection, any
				  necessary amendments to the information requested by subdivisions 6 and 7 of
				  this subsection shall be submitted by the user to the control authority within
				  60 days after the modified limit is approved.