Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0011 - Water Quality
Chapter 2 - DISCHARGES, PERMIT REGS
Appendix D - Additional Requirements Applicable to Manufacturing, Commercial, Mining and Silvicultural Facilities Discharging Only Non-process Waste Water

(a) Application requirements. Application requirements for manufacturing, commercial, mining and silvicultural facilities which discharge only non-process wastewater. Except for storm water discharges, all manufacturing, commercial, mining, and silvicultural dischargers applying for permits which discharge only non-process wastewater not regulated by an effluent limitation guideline or new source performance standard shall provide the following information, in addition to that described in Section 5(a) (v), to the administrator, using application forms provided by the administrator.

(i) Discharge date (for new dischargers). Date of expected commencement of discharge.

(ii) Type of waste. An identification of the general type of waste discharged, or expected to be discharged upon commencement of operations, including sanitary wastes, restaurant or cafeteria wastes, or noncontact cooling water. An identification of cooling water additives (if any) that are used or expected to be used upon commencement of operations, along with their composition if existing composition is available.

(iii) Effluent characteristics.

(A) Quantitative data for the pollutants or parameters listed below, unless testing is waived by the administrator.

(I) Biochemical Oxygen Demand (BOD5),

(II) Total Suspended Solids (TSS),

(III) Fecal Coliform (if believed present or if sanitary waste is or will be discharged),

(IV) Total Residual Chlorine (if chlorine is used),

(V) Oil and Grease,

(VI) Chemical Oxygen Demand (COD)(if non-contact cooling water is or will be discharged),

(VII) Ammonia (as N),

(VIII) Discharge Flow,

(IX) pH,

(X) Temperature (Winter and Summer), and

(XI) Total Organic Carbon (TOC).

(B) The quantitative data in Appendix D (a) (iii) (A) may be data collected over the past 365 days, if they remain representative of current operations, and must include daily maximum value, daily average value, and number of measurements taken. The applicant must collect and analyze samples in accordance with 40 CFR Part 136. Grab samples must be used for pH, temperature, oil and grease, total residual chlorine, and fecal coliform. For all other pollutants, 24-hour composite samples must be used. New dischargers must include estimates for the pollutants or parameters listed below instead of actual sampling data, along with the source of each estimate. All levels must be reported or estimated as concentration and as total mass, except for flow, pH, and temperature.

(C) The administrator may waive the testing and reporting requirements for any of the pollutants or flow listed in paragraph (a) (iii) of this appendix if the applicant submits a request for such a waiver before or with the permit application which demonstrates that information adequate to support issuance of a permit can be obtained through less stringent requirements.

(D) If the applicant is a new discharger, the applicant must provide quantitative data in accordance with paragraph (a) (iii) of this appendix no later than two (2) years after commencement of discharge. However, the applicant need not perform tests which they have already performed and reported under the discharge monitoring requirements of the applicant's permit.

(E) The requirements of paragraph (a) (iii) of this appendix do not apply for pollutants present in a discharge solely as a result of their presence in intake water. However, an applicant must report such pollutants as present. Net credit may be provided for the presence of pollutants in intake water if the requirements are met.

(iv) Flow. A description of the frequency of flow and duration of any seasonal or intermittent discharge (except for storm water runoff, leaks, or spills).

(v) Treatment system. A brief description of any system used or to be used.

(vi) Optional information. Any additional information the applicant wishes to be considered.