THIS IS AN ADMINISTRATIVE PENALTY ORDER PURSUANT TO CAA SECTION 113 ISSUED TO CHI CONSTRUCTION COMPANY FOR VIOLATION OF RULE 310 OF THE ARIZONA STATE IMPLEMENTATION PLAN. SPECIFICALLY, EPA ALLEGES CHI FAILED TO APPLY REASONABLE AVILABLE CONTROL MEASURES FOR DUST DURING EARTHMOVING OPERATIONS. THE CAFO REQUIRES CHI TO PAY A CIVIL PENALTY OF $6,000.