Complex sentence: The fossil site was discovered on October 14,2010 by Gould Construction Inc. crews who had been employed by the Snowmass Water and Sanitation District (SWSD) to expand the Ziegler Reservoir and provide additional water supplies to the nearby town of Snowmass Village.
Split into simpler sentences: The fossil site was discovered on October 14,2010 by Gould Construction Inc. crews. They were working for the Snowmass Water and Sanitation District (SWSD) to expand the Ziegler Reservoir and provide additional water supplies to the nearby town of Snowmass Village.