Administrative Code

Virginia Administrative Code
11/27/2021

Part VII. Drilling--Surface and Underground

4VAC25-40-980. Drilling of boreholes.

Drilling--Surface and Underground

Boreholes shall not be drilled where there is a chance of intersecting a loaded or misfired hole.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.5, eff. July 19, 1989.

4VAC25-40-990. Drills to be attended.

While in operation, drills shall be attended at all times.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.6, eff. July 19, 1989.

4VAC25-40-1000. Storage of steel and tools.

Receptacles or racks shall be provided for drill steel and tools stored on drills.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.7, eff. July 19, 1989.

4VAC25-40-1010. Moving vehicle-mounted drills.

When moving a track-mounted or truck- mounted drill from one drilling location to another:

1. The mast shall be lowered to a safe position;

2. Tools and other equipment shall be secured in a safe location; and

3. The drill helper, when used, shall remain in sight of the drill operator.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.8, eff. July 19, 1989.

4VAC25-40-1020. Power failures.

In the event of a power failure, drill controls shall be placed in the neutral position until power is restored.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.9, eff. July 19, 1989.

4VAC25-40-1030. Hands to be kept clear.

Drillers shall not hold or rest their hands on any rotating part of a drill.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.10, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1040. (Repealed.)

Historical Notes

Derived from VR480-05-1.2 § 7.11, eff. July 19, 1989; repealed, Virginia Register Volume 29, Issue 25, eff. September 26, 2013.

4VAC25-40-1050. Boreholes.

Boreholes large enough to create a hazard shall be covered or guarded.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.12, eff. July 19, 1989.

4VAC25-40-1060. Moving handheld drills.

Prior to moving handheld pneumatic drills from one working area to another, the air shall be turned off and bled from the hose.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.13, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1070. Handling of boulders.

Prior to drilling large boulders, drills shall be moved to a safe location and positioned securely in place.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.14, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1080. Walls or benches.

When drilling next to a wall or bench, drillers shall:

1. Remove any loose, unconsolidated material from the bench or wall above the work area;

2. Position the drill in such a manner that the controls are on the side of the drill away from the bench or wall; and

3. Never work between the drill and the bench or wall if their escape from the work area may be hindered by falling material.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.15, eff. July 19, 1989.

4VAC25-40-1090. Rotary jet piercing equipment.

Prior to using rotary jet piercing equipment, the operator shall obtain approval from the director who shall specify safety procedures to be used in operating this equipment.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from VR480-05-1.2 § 7.16, eff. July 19, 1989; amended, Virginia Register Volume 14, Issue 17, eff. July 1, 1998.

4VAC25-40-1095. Drill logs required for boreholes intended for blasting.

For each borehole intended for blasting, the driller shall produce a drill log as each hole is being drilled. The drill log shall include, at minimum, the name of the driller, borehole diameter, borehole depth, depth of broken material at the collar, and other geological conditions (for example, cracks, seams, voids, mud, or any other anomalies that could affect the blast) encountered during drilling. A signed copy of the drill log shall be provided to the mine operator and a copy shall be included in the record of the blast.

Statutory Authority

§§ 45.1-161.3, 45.1-161.294 and 45.1-161.305 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 25, Issue 20, eff. July 8, 2009.

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