More from Contributed

Who needs rulemaking?

Sep 02, 2015

Who needs rulemaking?

Amajor focus of the Mine Safety and Health Administration’s (MSHA) fatality prevention initiative, announced on Jan. 30, 2015, is workplace examinations required under 30 C.F.R. §§ 56/57.18002. But MSHA’s attention to workplace examinations was first publicized in the November 2014 ...

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Assessing noise and dust exposure

Sep 02, 2015

Assessing noise and dust exposure

Since the National Institute for Occupational Safety and Health (NIOSH) and Unimin Corp. developed the Helmet-CAM assessment technology, which integrates video and dust data into an exposure assessment tool, it has proven to be so effective for assessing respirable dust ...

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Rogers Group’s Pottsville Quarry reaches for the stars

Sep 02, 2015

Rogers Group’s Pottsville Quarry  reaches for the stars

Pottsville Quarry is Rogers Group, Inc.’s largest producing plant in southern middle Tennessee, but it hasn’t always been so. The quarry was just a glimmer in the eye of company executives when the greenfield site was purchased in the mid-1980s. “We ...

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Quarrying in the late 1800s was backbreaking work

Aug 31, 2015

Quarrying in the late 1800s was backbreaking work

n a great number of cases, when the month’s pay comes to a single man, he settles his board bill, squares up at the store and the livery stable, and then as for the balance, rolls it lively. George Ellsworth ...

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A sensible approach to scale maintenance

Aug 27, 2015

A sensible approach to scale maintenance

There’s an urban legend out there about the company whose maintenance crew mistakenly installed a new crusher with the rotor spinning backwards. It still worked! And you think you have issues? Companies purchase scales because the value of goods entering or ...

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Operations Illustrated: Do you know the best practices for dust control?

Aug 17, 2015

Operations Illustrated: Do you know the best practices for dust control?

By Mary Foster, Contributing Editor Dust Control Best Practices Dust control touches every part of an aggregate operation, from productivity, efficiency, and product quality to compliance, safety, and good neighbor relations. According to Mark Kestner, Ph.D., president and CEO of National Environmental ...

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Barre: The land of golden opportunity

Aug 13, 2015

Barre: The land of golden opportunity

‘Readers of STONE have been told of the wondrous natural resources of mineral wealth which only await development all over Vermont, and…the golden opportunities which await the capitalist who will apply his means to the development of these resources. Conspicuous ...

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ALJ dismisses flagrant designation

Aug 09, 2015

ALJ dismisses flagrant designation

An Administrative Law Judge (ALJ) recently deleted a flagrant designation brought by the Mine Safety and Health Administration (MSHA) against Oak Grove Resources, LLC. MSHA issued the violation for an alleged § 75.400 violation for impermissible coal accumulations along a ...

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Get big impact from your crusher performance

Aug 06, 2015

Get big impact from your crusher performance

There’s an urban legend out there about the company whose maintenance crew mistakenly installed a new crusher with the rotor spinning backwards. It still worked! And you think you have issues? To get the most from your equipment investment, you need ...

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Get the most (water) out of your dewatering screen

Jul 10, 2015

Get the most (water) out of your  dewatering  screen

Dewatering screens are common tools used to dewater fine aggregates (typically, minus-3/8-inch or smaller) prior to stockpiling. Feed to a dewatering screen can come from a variety of sources, including cyclones, density classifiers, fine material washers, and even directly from ...

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From the quarry to the cemetery

Jul 08, 2015

From the quarry to the cemetery

‘When our forefathers crossed the ocean and settled in this country, it was not long before the tombstone cutter made his appearance, and with his wagon load of slate and marble slabs, he journeyed through the towns, and when he ...

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Will a new Supreme Court ruling mean put an end to the doctrine of deference?

Jul 05, 2015

Will a new Supreme Court ruling mean put an end to the doctrine of deference?

In the October 2011 edition of Aggregates Manager, I wrote an article entitled “No Notice Required: MSHA’s disregard for rulemaking authority makes its way to the Review Commission” that detailed the Mine Safety and Health Administration’s (MSHA) substantive change to ...

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