HoustonChronicle.com
The Fifth Ward community in Houston, Texas has been concerned for years about remnants from a wood treatment operation. Union Pacific will start testing for toxin exposure on properties near the rail yard, which operated as a creosoting operation until the mid-1980s. Vapor intrusion testing spans 342 properties, including 110 homes, two elementary schools, and a park. The tests being conducted by Union Pacific will help determine if chemical cleanup of the residential area is necessary.