Abstract: At approximately 7:30 a.m. on May 17, 2013, Employee #1, a supervisor and well driller with Zim Industries, Inc. Dba Bakersfield Well & Pump Company, began cutting a pipe with an oxygen-acetylene torch after he removed the cap from the well casing and marked the cut line. He was cutting the well casing to raise it for the pump pad. Then, a piece of slag fell in excess of 30 ft down into the well casing, igniting an unknown substance. This caused flames to rise to the top of the well. Employee #1 was leaning over the open well casing when flames hit him in the arms, neck and chest area. Employee #1 received flash burns to the face, neck, anterior torso and bilateral upper extremities. The well was not properly tested with a gas monitor prior to cutting the well casing. Employee #1 was not wearing the appropriate personal protective equipment (a long sleeve shirt (cotton or FRC)); (leathers and welding gloves). Employee #1 was hospitalized.