Coal, petroleum coke debris found in Plaquemines marsh restoration projects

Pieces of coal and petroleum coke – some as large as fists – have been found dotting mile-long stretches of elevated marsh platform created by coastal restoration programs that are pumping sediment inland from the Mississippi River into open water near Lake Hermitage and Bayou Dupont on the west bank of Plaquemines Parish.

http://www.nola.com/environment/index.ssf/2014/09/coal_petroleum_coke_debris_fou.html