Source: https://www.msha.gov/regulations/rulemaking/petitions-modification/petition-docket-no-m-2007-008-m-0
Timestamp: 2018-12-10 19:43:22
Document Index: 423162949

Matched Legal Cases: ['§ 75', '§ 75', '§ 75', '§ 811', '§ 75', '§ 75', '§ 75', 'art 48']

No. 13 Slope
I.D. No. 36-09475 Docket No. M-2007-055-C
On July 31, 2007, a petition was filed seeking a modification of the application of 30 C.F.R. § 75.1200(d) and (i) to Petitioner's No. 13 Slope, located in Northumberland County, Pennsylvania. MSHA's review of the petition, however, revealed the petitioner is also seeking modification of 30 C.F.R. § 75.1200(h). For that reason, this standard is also included in this decision and order. The petitioned standard states, in relevant part,
The operator of a coal mine shall have...an accurate and up-to-date map of such mine drawn on scale. Such map shall show:...
Adjacent mine workings within 1000 feet
Petitioner proposes to use cross-sections in lieu of contour lines through the mine slope, at locations of rock tunnel connects between veins, and at 1,000 feet intervals of advance from the intake slope and to limit the required mapping of mine workings above and below to those present within 100 feet of the veins(s) being mined unless these veins are interconnected to other veins beyond the 100-foot limit through rock tunnels.
This operation is currently mining the No. 7 Vein, which averages 4 feet in thickness and has a pitch of 70 to 80 degrees. The slope is approximately 25 feet deep and the development of gangway monkey heading and chutes has not yet begun. The investigation determined that there are no abandoned mines adjacent to the active workings on the No. 7 Vein or within 1,000 feet in all directions.
On the basis of the petition and the findings of MSHA's investigation, Chestnut Coal Company is granted a modification of the application of 30 C.F.R. § 75.1200(d), (h), and (i) to its No. 13 Slope mine.
Wherefore, pursuant to the authority delegated by the Secretary of Labor to the Administrator for Coal Mine Safety and Health, and pursuant to Section 101(c) of the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 811(c), it is ordered that Chestnut Coal Company’s Petition for Modification of the application of 30 C.F.R. § 75.1200(d), (h), and (i) in the
No. 13 Slope mine is hereby:
A search by a registered engineer or surveyor of all available mapping, including cross sections, shall be conducted to determine the spacing between veins and the proximity of the projected and existing workings of the mine to other workings of adjacent mines. A hazard analysis shall be done when mapping indicates the presence of known or potentially flooded workings.
Where adjacent workings are located within 1,000 feet of the projected limit(s) of the same vein being mined, those workings shall be mapped, the potential water/gas hazard shall be evaluated, and a revised drilling program, if needed, shall be established under 30
C.F.R. § 75.388.
Where projections include mining-through into inaccessible areas of the same vein or adjacent vein(s) and the conditions cannot be determined, a plan detailing the operation shall be submitted under 30
C.F.R. § 75.389 for approval by the district manager.
Prior to mine development within 200 feet of known flooded abandoned workings in the same vein, a plan, under the provisions of 30 C.F.R. § Section 75.389, must be submitted and approved by the MSHA District Manager.
Prior to the removal of pillars below the water level table and in the vein being mined, when a separation between veins is less than 100 feet and the adjacent vein is known to be flooded a revised roof control plan shall be submitted and approved prior to pillar recovery.
Within 60 days after this Proposed Decision and Order becomes final, the Petitioner shall submit proposed revisions for its approved 30 C.F.R. Part 48 training
plan to the Coal Mine Safety and Health District Manager. The proposed revisions shall include initial and refresher training regarding compliance with the Proposed Decision and Order.