Summer 2003

The official magazine of the National Drilling Association. Drill Bits magazine is published three times each calendar year, April, July and October. Members of the National Drilling Association receive complimentary copies as part of their membership benefits.

While most drillers begin their work at ground level, NDA member L. Robert Kimball & Associates often starts high above it. Kimball frequently performs stockpile density surveys, unique operations that require drilling crews to be perched on piles of coal at heights of 150 feet or more. Read More...

The quiet, upscale neighborhood near Toronto, Ontario seemed an unlikely place for a hazardous fuel oil spill. The site of the leak was a beautifully landscaped multi-million-dollar residence, one of many such properties in the affluent, mid-city community. Read More...

The Delaware Aqueduct supplies more than 50 percent of the water needed by the greater metropolitan area of the City of New York. For several years, this 13½-foot-diameter tunnel has been leaking water to the surface from its location at more than 700 feet underground. The leak is causing the tunnel to lose an estimated 20 million gallons of water a day on average. Read More...