Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 2 - DISCHARGES, PERMIT REGS › Appendix B - Additional Requirements Applicable to Existing Manufacturing, Commercial, Mining and Silviculture Discharges

Current through July 13, 2024
(a) Application requirements. Existing manufacturing,
				  commercial, mining, and silviculture discharges applying for permits, except
				  for those facilities which discharge only non-process wastewater, shall provide
				  the following information, in addition to that described in Section
				  5(a)
				  (v), to the administrator, using the
				  application forms provided by the administrator.
(i) A line drawing of the water flow through the facility
				  with a water balance, showing operations contributing wastewater to the
				  effluent and treatment units. Similar processes, operations, or production
				  areas may be indicated as a single unit, labeled to correspond to the more
				  detailed identification required in paragraph (a) (ii) of this appendix. The
				  water balance must show approximate average flows at intake and discharge
				  points and between units, including treatment units. If a water balance cannot
				  be determined (for example, for certain mining activities), the applicant may
				  provide instead a pictorial description of the nature and amount of any sources
				  of water and any collection and treatment measures.
(ii) Average flows and treatment. A narrative identification
				  of each type of process, operation, or production area which contributes
				  wastewater to the effluent for each outfall, including process wastewater,
				  cooling water, and storm water runoff; the average flow which each process
				  contributes; and a description of the treatment the wastewater receives,
				  including the ultimate disposal of any solid or fluid wastes other than by
				  discharge. Processes, operations, or production areas may be described in
				  general terms (for example, "dye-making reactor," "distillation tower") For a
				  privately owned treatment works, this information shall include the identity of
				  each user of the treatment works. The average flow of point sources composed of
				  storm water may be estimated. The basis for the rainfall event and the method
				  of estimation must be indicated.
(iii) Intermittent flows. If any of the discharges described
				  in paragraph (a) (ii) of this appendix are intermittent or seasonal, a
				  description of the frequency, duration and flow rate of each discharge
				  occurrence (except for storm water runoff, spillage or leaks).
(iv) Maximum production. If an effluent guideline listed in
				  Section
				  5(c) of these regulations
				  applies to the applicant and is expressed in terms of production (or other
				  measure of operation), a reasonable measure of the applicant's actual
				  production reported in the units used in the applicant effluent limitation. The
				  reported measure must reflect the actual production of the facility.
(v) Improvements. If the applicant is subject to any present
				  requirements or compliance schedules for construction, upgrading or operation
				  of waste treatment equipment, an identification of the abatement requirement, a
				  description of the abatement project and projected final compliance
				  dates.
(vi) Quantitative data. At a minimum, the applicant shall
				  submit quantitative data for pollutants in the discharge as provided in this
				  paragraph and in paragraph (a) (vi) (G) of this appendix. For purposes of this
				  paragraph, an applicant is expected to know or have reason to believe that a
				  pollutant is present in an effluent based on an evaluation of the expected use,
				  production, or storage of the pollutant, or on any previous analyses for the
				  pollutant.
(A) Every applicant must report quantitative data for every
				  outfall for the following pollutants:
(I) Biochemical Oxygen Demand
				  (BOD5),
(II) Chemical Oxygen Demand,
(III) Total Organic Carbon,
(IV) Total Suspended Solids,
(V) Ammonia (as N),
(VI) Temperature (both winter and summer), and
(VII) pH.
(B) The administrator may waive the reporting requirements
				  for individual point sources or for a particular industry category for one or
				  more of the pollutants listed in paragraph (a) (vi) (A) of this appendix if the
				  applicant has demonstrated that such a waiver is appropriate because
				  information adequate to support issuance of a permit can be obtained with less
				  stringent requirements.
(C) Each applicant with processes in one or more primary
				  industry category (see Appendix A to 40 CFR Part 122) contributing to a
				  discharge must report quantitative data for the following pollutants in each
				  outfall containing process wastewater:
(I) The organic toxic pollutants in the fractions designated
				  in 40 CFR Part 122, Table I of Appendix D for the applicant's industrial
				  category or categories. Table II of Appendix D lists the organic toxic
				  pollutants in each fraction. The fractions result from the sample preparation
				  required by the analytical procedure which uses gas chromatography/mass
				  spectrometry. A determination that an applicant falls within a particular
				  industrial category for the purposes of selecting fractions for testing is not
				  conclusive as to the applicant's inclusion in that category for any other
				  purposes.
(II) The pollutants listed in 40 CFR Part 122, Table III of
				  Appendix D (the toxic metals, cyanide, and total phenols).
(D) Each applicant must indicate whether they know or have
				  reason to believe that any of the pollutants as described in (I) or (II) below
				  is discharged from each outfall.
(I) Any of the pollutants in Table IV of Appendix D (certain
				  conventional and non-conventional pollutants) of 40 CFR Part 122. If an
				  applicable effluent limitations guideline either directly limits the pollutant
				  or, by its express terms, indirectly limits the pollutant through limitations
				  on an indicator, the applicant must report quantitative data. For every
				  pollutant discharged which is not so limited in an effluent limitations
				  guideline, the applicant must either report quantitative data or briefly
				  describe the reasons the pollutant is expected to be discharged.
(II) Any of the pollutants listed in Table II or Table III of
				  Appendix D (the toxic pollutants and total phenols) of 40 CFR Part 122 for
				  which quantitative data are not otherwise required under paragraph (a) (vi) (C)
				  of this appendix. For every pollutant expected to be discharged in
				  concentrations of 10 ppb or greater the applicant must report quantitative data
				  For acrolein, acrylonitrile, 2,4 dinitrophenol, and 2-methyl-4,6 dinitrophenol,
				  where any of these four pollutants are expected to be discharged in
				  concentrations of 100 ppb or greater, the applicant must report qualitative
				  data. For every pollutant expected to be discharged in concentrations less than
				  10 ppb, or in the case of acrolein, acrylonitrile, 2,4 dinitrophenol, and
				  2-methyl-4,6 dinitrophenol, in concentrations less than 100 ppb, the applicant
				  must either submit quantitative data or briefly describe the reasons the
				  pollutant is expected to be discharged.
(E) Each applicant must indicate whether they know or have
				  reason to believe that any of the pollutants in Table V of Appendix D of 40 CFR
				  Part 122 (certain hazardous substances and asbestos) are discharged from each
				  outfall. For every pollutant expected to be discharged, the applicant must
				  briefly describe the reasons the pollutant is expected to be discharged, and
				  report any quantitative data it has for any pollutant.
(F) For purposes of paragraphs (C) and (D) above, the
				  applicant need not provide quantitative data if the pollutant is present in the
				  discharge solely as a result of the presence in intake water. However, the
				  applicant must report such pollutant as present.
(G) Each applicant must report qualitative data, generated
				  using a screening procedure not calibrated with analytical standards, for
				  2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) if they:
(I) Use or manufacture 2,4,5-trichlorophenoxy acetic acid
				  (2,4,5,-T); 2-(2,4,5-trichlorophenoxy) propanoic acid (Silvex, 2,4,5,-TP);
				  2-(2,4,5-trichlorophenoxy) ethyl, 2,2-dichloropropionate (Erbon); O,O-dimethyl
				  O-(2,4,5-trichlorphenyl) phosphorothioate (Ronnel); 2,4,5-trichlorophenol
				  (TCP); or hexachlorophene (HCP); or
(II) Know or have reason to believe that TCDD is or may be
				  present in an effluent.
(vii) When quantitative data for a pollutant are required,
				  the applicant must collect a sample of effluent and analyze it for the
				  pollutant in accordance with analytical methods approved under 40 CFR Part 136.
				  When no analytical method is approved the applicant may use any suitable method
				  but must provide a description of the method.
(A) When an applicant has two (2) or more outfalls with
				  substantially identical effluents, the department may allow the applicant to
				  test only one (1) outfall and report that the quantitative data also apply to
				  the substantially identical outfalls.
(B) Grab samples must be used for pH, temperature, cyanide,
				  total phenols, residual chlorine, oil and grease, fecal coliform and fecal
				  streptococcus.
(C) For all other pollutants, 24-hour composite samples must
				  be used. However, a minimum of one (1) grab sample may be taken for effluents
				  from holding ponds or other impoundments with a retention period greater than
				  24-hours. In addition, for discharges other than storm water discharges, the
				  administrator may waive composite sampling for any outfall for which the
				  applicant demonstrates that the use of an automatic sampler is infeasible and
				  that the minimum of four (4) grab samples will be a representative sample of
				  the effluent being discharged.
(viii) Used or manufactured toxins. A listing of any toxic
				  pollutant which the applicant currently uses or manufactures as an intermediate
				  or final product or byproduct. The administrator may waive or modify this
				  requirement for any applicant who demonstrates that it would be unduly
				  burdensome to identify each toxic pollutant if the administrator has adequate
				  information to issue the permit.
(ix) An identification of any whole effluent toxicity tests
				  which the applicant knows or has reason to believe has been made within the
				  last three (3) years on any of the applicant's discharges or on a receiving
				  water in relation to a discharge.
(x) Contract analyses. If a contract laboratory or consulting
				  firm performed any of the analyses required in paragraphs (a) (vi) or (a) (vii)
				  of this appendix, the applicant shall identify each laboratory or firm and the
				  analyses performed.
(xi) Small business exemption. An applicant which qualifies
				  as a small business under one of the following criteria is exempt from the
				  requirements in Appendix B (a) (vi) (C) (I) and the Table II quantitative
				  requirement of Appendix B (a) (vi) (D) (II):
(A) For coal mines, the probable total annual production is
				  less than 100,000 tons per year.
(B) For all other applicants, the gross total annual sales
				  average less than $100,000 per year (in second quarter 1980 dollars).
(b) Notification of routine toxic discharges not limited in
				  the permit. Permits for existing manufacturing, commercial, mining and
				  silvicultural discharges shall require that the permittee report to the
				  administrator as soon as the permittee knows or has reason to believe that any
				  activity has occurred or will occur which would result in the discharge, on a
				  routine or frequent basis, of any toxic pollutant which is not limited in the
				  permit, if that discharge will exceed the highest of the following notification
				  levels:
(i) One hundred micrograms per liter (100 ug/l);
(ii) Two hundred micrograms per liter (200 ug/l) for acrolein
				  and acrylonitrile; five hundred micrograms per liter (500 ug/l) for
				  2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per
				  liter (1 mg/l) for antimony;
(iii) Five (5) times the maximum concentration value reported
				  for that pollutant in the permit application; or
(iv) The notification level established by the director in
				  accordance with Section
				  5(c) of these
				  regulations.
(c) Notification of non-routine toxic discharges not limited
				  in the permit Permits for existing manufacturing, commercial, mining and
				  silvicultural discharges shall require that the permittee report to the
				  director as soon as the permittee knows or has reason to believe that any
				  activity has occurred or will occur which would result in any discharge, on a
				  non-routine or infrequent basis, of any toxic pollutant which is not limited in
				  the permit , if that discharge will exceed the highest of the following
				  notification levels:
(i) Five hundred micrograms per liter (500 ug/l);
(ii) One milligram per liter (1 mg/l) for antimony;
(iii) Ten (10) times the maximum concentration value reported
				  for that pollutant in the permit application; or
(iv) The notification level established by the administrator
				  in accordance with Section
				  5(c) of these
				  regulations.