Where to bury 38,000 m3 of pyritic rock?

PenDOtt Route 2001 project

State Route 2001 is a 35 km road in Pike County, Pennsylvania, which is undergoing considerable improvements. The Pocono Record (08.03.14) reported that the next major phase of the improvement (Lehman Township) was due to start in March this year but was delayed due to the identification of pyritic rock along the route alignment. Quoting from the article:

“Bore samples taken two years ago for this project did not initially reveal a pyrite problem, but recent borings did show it in various places along the entire project area, which runs from where the last phase ended at Little Egypt Road to Oakridge Road.”

Dealing with the pyritic rock

According to the Pocono Record (08.03.14), engineers from the Pennsylvania Department of Transportation (PennDOT) are now attempting to determine how much pyrite is present and how to mitigate the problem.… Read the rest