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I I I I I I I I I I 11.0 PREVIOUS DRAFT ENVIRONMENTAL ASSESSMENT The Draft USBR/PNM Water Contract Renewal and Extension Environmental Assessment was issued June 8, 1995. Copies of the DEA were distributed to agencies and individuals. Since that time, the Jicarilla Apache Nation and PNM have developed an agreement for a water subcontract, therefore, the uecision was made 10 reissue the draft EA as it penains to this subcontract. 12.0 COMPLIANCE WITH ENVIRONMENTAL STATUTES San Juan Generating Station operates under several environmental protection permits issued by federal and New Mexico agencies. These permits regulate activities related to air and water quality and management of hazardous wastes. \2,1 Air Quality \2.1.1 Current Air Quality Permits All of the SJGS units operate under revised air quality construction permit 63-M-2 issued by the New Mexico Environment Department in accordance with the New Mexico Air Quality Control Act, Title 74, Article 2 (NMS), the New Mexico Air Quality Standards, and the New Mexico Air Quality Control Regulations. Permit 63-M-2, issued on January 22, 1997, supercedes all previous pemlits. 12.1.2 Operating Permit Program SJGS is a major source under the Federal and State Operating Permit Program and requires an operating permit. The operating permit application was submitted to the NMED in June 1995 and the operating permit #P062 was issued on August 12, 1998. The permit must be renewed every five years. I I The Operating Permit Program was established by the 1990 Amendments to the Clean Air Act. The intent of the program is to clarify. in a single document, all the air quality requirements that apply to a source. The operating permit enables the source, the regulators, and the public to better understand the requirements to which the source is subject, and whether the source is meeting those requirements. The Operating Permit Program does not impose substantive new regulatory requirements on a source. \2.2 Water Quality I I I SJGS operates under water quality permits issued by the EPA, Region 6, and the NMED pursuant to the following laws and regulations: . The Clean Water Act (CW A) (33 U.s.e.. Sec. 1251-\387) . New Mexico Water Quality Control Act, Article 6 (NMS) . New Mexico Water Quality Control Commission (WQCC) Regulations . New Mexico Water Quality Standards for Interstate and Intrastate Streams Two NPDES permits have been issued to SJGS by the EPA pursuant to the CW A. Each permit expires 5 years from the date of issuance, and is renewable upon application. SJGS achieved zero liquid discharge status on May 13, 1983. 55 f\!l1546