A. General:
1. The loading or loaded areas shall be kept free of any equipment, operations or persons not essential to loading.
2. Tamping shall be done with a wooden stick having no metal parts. Cartridges shall be seated by even, steady pressure only.
3. All loaded holes or charges shall be checked and definitely located before firing.
4. Reloading of sprung holes shall be prohibited until it is definitely established that the hole is cool.
5. Cartridges shall be primed only in the number required for a single round of blasting. Detonators shall be inserted only in a hole in the end of a cartridge prepared especially for that purpose. Holes shall be made with a sharpened wooden stick.
6. All charges shall be covered with blasting mats before firing, where blasting is likely to cause injury or damage by flying rock or debris. Where steel mats are used, care shall be taken to keep them from touching bare connections in the electric blasting circuits.
7. Detonating cord shall be cut from supply reel before attaching to explosive or tamping in hole.
8. After drilling, a cooling period of at least one hour shall be observed before the hole is loaded. If, for some reason, this procedure cannot be followed, then the hole should be checked for temperature or cooled with water. No dynamite should be loaded if the temperature is in excess of one hundred fifty degrees Fahrenheit (150°F).
B. Marine Loading: The following requirements shall be observed for use of dynamite and/or electric detonators:
1. Only nonferrous tubes loaded with explosives and primed for insertion in drilled holes shall be permitted.
2. Loaded tubes shall not be permitted to be taken from the loading room until a hole is ready for loading.
3. Loaded tubes only in amounts necessary to load two (2) holes shall be permitted in the loading room.
4. Detonators only in the amounts necessary to load two (2) holes shall be permitted in the loading room.
5. Opened containers of explosives only in amounts necessary to load tubes for two (2) holes shall be permitted to be kept in the loading room.
6. In loading drill holes with loaded or primed tubes, the tamping or ramming shall be done with a wooden stick or nonferrous metal rod. (Ord. A-348, 6-4-1979)