CALMAT CO. OF NEW MEXICO OWNS AND OPERATES A NON- METALLIC MINERAL PROCESSING PLANT LOCATED ON SANDIA PUEBLO INDIAN LANDS NEAR THE CITY OF ALBUQUERQUE, NM. THE 483 ACRE PARCEL ON WHICH THE FACILITY SITS IS OWNED BY THE PUEBLO OF SANDIA AND LEASED FROM THESE INDIAN LANDS BY CALMAT FOR MINING AND AGGREGATE PROCESSING UNDER THE NAME S & S AGGREGATES, ITS PREDECESSOR IN INTEREST AT THE FACILITY. THE FACILITY, REFERRED TO AS THE CALMAT SANDIA PUEBLO ROCK PLANT, DOES NOT HAVE A STREET ADDRESS, BUT IS LOCATED OFF THE NORTHWEST CORNER OF THE INTERSECTION OF INTERSTATE HIGHWAY 25, AND TRAMWAY ROAD, ABOUT 1/4TH MILE NORTH OF THE CITY LIMITS OF THE CITY OF ALBUQUERQUE. CALMAT CO. OF NEW MEXICO IS A NEW MEXICO CORPORATION WHICH IS A WHOLLY OWNED SUBSIDIARY OF CALMAT CO., A DELAWARE CORPORATION. * THE MECHANICAL FACILITY FOR PROCESSING NON-METALLIC MINERALS (AGGREGATE) WAS FIRST OPERATIONAL UNDER THE NAME S & S AGGREGATES IN 1973, PRIOR TO THE EFFECTIVE DATE OF SECTION 000, 40 CFR 60.670 TO 60.676, RELATING TO NON-METALLIC MINERAL PROCESSING PLANTS, AND PRIOR TO THE EFFECTIVE DATE 40 CFR PART 60, SUBPART A, THE GENERAL LPROVISIONS FOR THE STANDARDS OF PERFORMANCE FOR NEW STATIONARY SO