This Harris County Superfund site is ‘vulnerable’ to flooding French Limited capped decades ago, but Crosby-area neighbors worried it’s not enough Joel Eisenbaum, Investigative Reporter Published: Updated: Tags: HOUSTON – A 55-acre Environmental Protection Agency Superfund site near Crosby, where an estimated 90 million gallons of industrial waste was dumped between 1966 and 1972, has flooded repeatedly in the last five years, and neighbors are worried the chemicals are migrating away from the site. There is no definitive evidence that is the case, but a 2017 EPA report showed that there was evidence that some “chemicals of concern” had gotten through a barrier containment wall within the property.