ON OCT 31, 1999, AT APPROXIMATELY 1 A.M. LOCAL TIME, A SOUTH BOUND ALASKA RAILROAD CORPORATIN FREIGHT TRAIN WITH FIVE LOCOMOTIVES, TWO YARD ENGINES IN TOW, AND 46 LOADED PETROL- EUM TANK CARS PARTIALLY DERAILED AT ALASKA RAILROAD MILEPOST 268.8. TWO TRAILING LOCOMOTIVES DERAILED ALONG WITH TEN TANKERS LOADED WITH JET A (DIESEL #1) FUEL. APPROXIMATELY 297 BARRELS OF JET FUEL DISCHARGED INTO A SERIES OF PONDS AND WETLANDS AND INTO ANDREW CREEK WHICH FLOWS INTO THE INDIAN RIVER WHICH FLOWS INTO THE SUSITNA RIVER.