Technology developed to date has been somewhat successful in preventing pollution. Some progress has also been made in controlling and removing pollution once it has occurred, but this progress has been small. Public information sometimes fails to make this clear. For example, a New York City Fire Department film () devoted to oil pollution control states that approximately 200 spills are reported each year in the New York City area, but no actual spills are shown. Instead, the film shows the deployment of oil pollution control equipment into clean water by men in spotless uniforms in perfect weather. The film attempts to simulate floating oil with small floating chips thrown onto the water. However, it is well known that floating chips do not behave like floating oil (). Real oil spill cleanup is not an operation consistent with spotless uniforms. An accurate and objective first-hand report of an actual incident is found in "Oil Pollution Incident Platform Charlie, Main Pass Block 41 Field, Louisiana," (), which deals with the Chevron spill of 1970. The Chevron spill began with a fire and caused much oil pollution after the fire was extinguished. A wide variety of pollution control techniques were used, and thus accurate and complete reporting made the accident a "field laboratory" for evaluating these techniques.