Section 300.230  Use of Explosives; Blasting Signs, Warnings, and Access Control

a)         Specifications.  Signs and markers required under this Part shall:

1)         Be posted and maintained by the operator;

2)         Be of uniform design  that can be easily seen and read; and

3)         Be made of durable material.

b)         Duration of maintenance.  Signs and markers shall be maintained during the conduct of all activities to which they pertain.

c)         Blasting signs. The operator shall:

1)         Conspicuously display blasting sign(s)  along the edge of any blasting zone that comes within one hundred (100) feet of any public road right-of-way, and at the point where any other road provides access to the blasting zone; and

2)         At all entrances to the operation  from public roads or highways, place conspicuous sign(s) which indicate  explosives are used at the operation and which clearly list and describe the meaning of the audible blast warning and all-clear signals that are in use.

d)         Warning and all-clear signals of different character or pattern that are audible within the blasting zone shall be given.

e)         Access to the blasting zone shall be controlled to prevent the presence of unauthorized personnel during blasting until an authorized representative of the operator has reasonably determined:

1)         That no unusual circumstances, such as  undetonated charges, exist; and

2)         That access to and travel in or through the area can be safely resumed.

(Source:  Added at 20 Ill. Reg. 9546, effective July 1, 1996)