Those details and far more are outlined in the 6,711-page environmental analysis, prepared by Shelton-based engineers Tighe & Bond. Commissioned by the area’s Metropolitan Council of Governments (MetroCOG), a regional planning organization, the massive document lays out what Connecticut Sports Group must to do to clean up and/or contain pollutants. The recommendations are not unusual for such contaminated locations, commonly known as brownfields, and include “limited”” excavation of “hot spots” of pollution for off-site disposal and “capping” the remaining soil “beneath proposed buildings and structures, asphalt-pavement, clean fill material of sufficient thickness, and/or brightly colored demarcation barriers/liners.” Swanston already has some state financial help for site preparation. Last year, a total of $16 million was awarded for the ground remediation effort, with state officials emphasizing that even if the soccer stadium does not move forward, the money will be well-spent readying the prime acreage for another future redevelopment.

https://www.stamfordadvocate.com/news/article/bridgeport-soccer-stadium-cleanup-20819050.php