ON OR ABOUT 5/20/98, A GASOLINE TRANSPORT TRUCK'S TANK DISCHARGED A REPORTED 2,500 GALLONS OF UNLEADED GASOLINE. MUCH OF THE GASOLINE ENTERED A STORM SEWER NEAR 403 WEST MAIN STREET WITHIN THE CITY LIMITS OF STERLING, CO AND ULTIMATELY REACHED THE SOUTH PLATTE RIVER APPROXIMATELY 1.75 MILES FROM THE SPILL SITE. THIS ORDER REQUIRES SAV-O-MAT TO ASSESS AND REMOVE THE CONTAMINATION FOUND IN THE GROUNDWATER AND SOILS RESULTING FROM THE RELEASE OF THE GASOLINE.