As the household of Rolling Rock B...

As the household of Rolling Rock Beer, thousands of "rocks" leave Latrobe, Pa., each day. But last winter, Dave Williams, superintendent of public works, wanted the crushed rock that makes up his antiskid to stay place Liquid calcium chloride allowed him to do just that.

A fierce storm hit the region with near blizzard conditions in january, bringing 24 inches of snow, 25-mile-per-hour winds and temperatures down to minus 23 extents Fahrenheit. Little moved on the roads of this town of 10000 located 40 miles east of Pittsburgh. And to make matters worse, Williams was running dangerously cheap on road salt.

"I had a profitable amount heading into that 36-hour storm, moreover the task of keeping our roads interpret demanded so much that our stockpile was nearly deplet well before the storm ended" says Williams. "The entire region went into crisis. Nearby towns were paralyzed, businesses