In a large bowl or seal-able bag combine water, soy sauce, vegetable oil, lemon pepper, and garlic. Add the pork chops. Cover, refrigerate and allow to marinate for at least 2 hours.
Grease and heat an outdoor grill. Grill pork chops for 7 minutes on each side or until fully cooked. Do not over-cook. Cook until the pork chops have reached an internal temperature of 145 degrees.