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

Universal Citation: WY Code of Rules C
Current through September 21, 2024

(a) New manufacturing, commercial, mining and silvicultural dischargers applying for permits (except for new discharges of facilities subject to the requirements of Appendix D of these regulations), shall provide the following information, in addition to that described in Section 5(a) (v), to the administrator, using the application form provided by the administrator.

(i) Discharge dates. The expected date of commencement of discharge.

(ii) Flows, sources of pollution, and treatment technologies.

(A) Expected treatment of wastewater. Description of the treatment that the wastewater will receive, along with all operations contributing wastewater to the effluent, average flow contributed by each operation, and the ultimate disposal of any solid or liquid wastes not discharges.

(B) Line drawing. A line drawing of the water flow through the facility with a water balance as described in Appendix B (a) (i).

(C) Intermittent flows. If any of the expected discharges will be intermittent or seasonal, a description of the frequency, duration and maximum daily flow rate of each discharge occurrence (except for storm water runoff, spillage, or leaks).

(iii) Production. If a new source performance standard promulgated under Section 306 of the CWA or an effluent limitation guideline applies to the applicant and is expressed in terms of production (or other measure of operation), a reasonable measure of the applicant's expected actual production reported in the units used in the applicable effluent guideline or new source performance standard for each of the first three (3) years. Alternative estimates may also be submitted if production is likely to vary.

(iv) Effluent characteristics.

(A) Each applicant must report estimated daily maximum, daily average, and source of information for each outfall for the following pollutants or parameters.

(I) Biochemical Oxygen Demand (BOD5),

(II) Chemical Oxygen Demand (COD),

(III) Total Suspended Solids (TSS),

(IV) Flow,

(V) Ammonia (as N),

(VI) Temperature (winter and summer),

(VII) pH, and

(VIII) Total Organic Carbon (TOC).

(B) The administrator may waive the reporting requirements for any of the pollutants and parameters in Appendix C (a) (iv) (A) if the applicant submits a request for such a waiver before or with the application which demonstrates that information adequate to support issuance of the permit can be obtained through less stringent reporting requirements.

(C) Each applicant must report estimated daily maximum, daily average, and source of information for each outfall for all pollutants in Table IV of Appendix D 40 CFR Part 122 (certain conventional and no n-conventional pollutants) if the applicant knows or has reason to believe the pollutants will be present or if the pollutants are limited by an effluent limitation guideline or new source performance standard either directly or indirectly through limitations on an indicator pollutant.

(D) Each applicant must report estimated daily maximum, daily average and source of information for the following pollutants if they know or have reason to believe that the pollutant will be present in the discharges from any outfall:

(I) The pollutants listed in Table III of Appendix D (the toxic metals, in the discharge from any outfall: Total cyanide, and total phenols) of 40 CFR Part 122;

(II) The organic toxic pollutants in Table II of Appendix D (except bis (chloromethyl) ether, dichlorofluoromethane and trichlorofluoromethane) of 40 CFR Part 122. This requirement is waived for applicants qualifying for the small business exemption as specified in Appendix B (a) (xi).

(E) The applicant is required to report that 2,3,7,8 Tetrachlorodibenzo-P-Dioxin (TCDD) may be discharged if he uses or manufactures one of the following compounds, or if he knows or has reason to believe that TCDD will or may be present in an effluent:

(I) 2,4,5-trichlorophenoxy acetic acid (2,4,5-T) (CAS #93-76-5);

(II) 2-(2,4,5-trichlorophenoxy) propanoic acid (Silvex, 2,4,5-TP) (CAS #93-72-1);

(III) 2-(2,4,5-trichlorophenoxy) ethyl 2,2-dichloropropionate (Erbon) (CAS #136-25-4);

(IV) 0,0-dimethyl 0-(2,4,5-trichlorophenyl) phosphorothioate (Ronnel) (CAS #299-84-3);

(V) 2,4,5-trichlorophenol (TCP) (CAS #95-95-4); or

(VI) Hexachlorophene (HCP) (CAS #70-30-4).

(F) Each applicant must report any pollutants listed in Table V of Appendix D (certain hazardous substances) of 40 CFR Part 122 if they believe the pollutants will be present in any outfall (no quantitative estimates are required unless they are already available).

(G) No later than two (2) years after the commencement of the discharge from a proposed facility, the applicant must submit analytical results which characterize the actual effluent discharged. The applicant need not submit this information to the extent the analytical results are reported by the applicant under the discharge monitoring requirements of the applicant's permit.

(v) Engineering report. Each applicant must report the existence of any technical evaluation concerning the applicant's wastewater treatment, along with the name and location of similar plants of which the applicant has knowledge.

(vi) Other information. Any optional information the permittee wishes to have considered.

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