>> this is vinyl pvc pipe. >> allen blakey, a spokesman for the vinyl industry, says what happened was the exception, not the rule. >> in most instances, the communities are doing very well, living right next door to the plants and the relationships are generally good. >> authorities never accused condea vista of doing anything illegal but the underground contamination did not go over well in mossville. residents of this mossville neighborhood were upset. over 1,000 banded together to file a groundwater contamination class action lawsuit. they won that lawsuit but something else happened here as well. residents over here, these close-knit neighbors all started to scatter, fled the pollution, leaving this neighborhood nearly abandoned, and part of mossville's history was lost for good. >> i can't bring my children back here and say, this is where momma grew up at, this where is you were born, a house i brought you in, i can't do that anymore because it just doesn't exist anymore. i think it's unfair for them to just rob you, like raping you of your history.