Laserfiche WebLink
A metal diffuser will be installed above the proposed opening. The diffusers will be <br />approximately 4 to 5 feet tall, screened on top to prevent entry, and painted a military olive color <br />to blend with the surroundings. <br />Electric Power for fans installed on the vent holes will normally be provided from underground <br />systems within the mine to limit the amount of surface disturbance at the vent hole sites. In some <br />instances, overhead service lines may be located adjacent to the vent hole location and may be <br />required; this will be evaluated on a case-by-case basis and if overhead service lines are required, <br />this will be incorporated into notices provided for each new vent location. <br />