Environmental groups contend water contains elevated level of several contaminants; Dominion Power counters that sampling was done incorrectly. 

Mota-Engil will build and operate a new airport over 25 years.

China Railway Construction Corp. will procure and build a $1.8-billion, four-line rail system.

With a projected cost of $1.7 billion and about four years late, project is now more than five times the 2004 estimate.