2023-01-04_PERMIT FILE - M2022013 (22)

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PART Page 7 of 67 Permit No.: COG500000 j. Process water discharges from operations that produce the following commodities (SIC Code in parentheses): • Gypsum (1499); • Sodium sulfate(1474); • Asphaltic minerals(1499); • Frasch sulfur(1479); • Asbestos and wollastonite(1499); • Bentonite(1459); • Barite(1479); • Magnesite(1459); • Fluorspar(1479); • Diatomite (1499); • Salines from brine lakes(2899); • Jade(1499); • Borox(1474); • Novaculite(1499); and • Potash (1474); • Tripoli(1499) • Phosphate Rock(1475); 3. Chemical addition Discharges with chemical addition (including, but not limited to chemical additions at any point in the treatment process, release agents,etc),are eligible for coverage under this permit only if the Division approves the use of the specific chemical(s) and provides notification of such approval to the permittee. To request Division approval,the permit applicant must submit a list of proposed chemicals, including dosage rates, used in the treatment process. Additionally,the applicant must submit an MSDS for each chemical proposed for use. In granting the use of such chemicals,the Division may impose additional limitations and monitoring requirements in the permit certification. Chemicals used in waters that will or may be discharged to waters of the State must be used in accordance with all state and federal regulations,and in strict accordance with the manufacturer's site-specific instructions. 4. Obtaining and maintaining Authorization under this permit a. Application Requirements: To obtain authorization for discharges under this permit: i. The applicant must meet the eligibility requirements under Parts I.A.1. ii. For stormwater discharges,the applicant must develop a Stormwater Management Plan (SWMP) in accordance with the requirements of this permit prior to submitting an application to the Division,and must certify in the application that a SWMP has been completed. iii. The applicant must submit a complete,accurate,and signed permit application,on a form provided by the Division, by mail or hand delivery to the Division at least 60 days before the anticipated date of discharge; or for stormwater-only discharges,at least 60 days before the facility commences industrial activity that may result in a discharge of stormwater. The applicant must sign the application in accordance with the requirements of Part I.F (Reporting and Recordkeeping)of this permit. The complete application shall be submitted to: Colorado Department of Public Health and Environment Water Quality Control Division Permits Section,WQCD-PCP-B2 4300 Cherry Creek Drive South Denver,CO 80246-1530 iv. The applicant(s) must receive written notification that the Division granted permit coverage. b. Permit Certification Procedures: Following review of the application or other information,the Division may: i. request such additional information as is reasonably necessary to evaluate the discharge; ii. delay the authorization to discharge pending further review; iii. notify the applicant that additional terms and conditions are necessary; iv. provide a compliance schedule in the certification for terms and conditions that are new or more stringent than previous conditions; v. deny the authorization to discharge under this general permit.