Callers should ensure that as much information as possible is included in the notification; however, do not jeopardize personal safety to obtain this information. Following is a list of information that is particularly useful:

• location;
• time of observation of spill;
• reported by;
• probable sources of the spill;
• probable time of spill;
• nature of material spilled;
• probable volume of spill;
• probable duration of spill;
• area affected;
• mobility of spill;
• weather, water or geographic conditions;
• action being taken to contain and/or control the spill;
• personnel at the scene of the spill;
• resources threatened (e.g. water supply, bird colony, fish kills, etc.);
• other agencies contacted; and
• any other pertinent information.