A nagging question for DEP about Mariner East 2

On our editorial page today, we're asking a question a lot of people seem to be asking.

It's about the Mariner East 2 pipeline that has caused so much controversy in both Delaware and Chester counties.

The agreement that will put much more scrutiny on Sunoco Pipeline while offering a much strong measure of security for residents is a good step.

The agreement, approved by the state Environmental Hearing Board, will allow Sunoco to continue their controversial horizontal directional drilling that caused some problems, but with more precautions and much more in the way of notice when drilling is to commence in residents' neighborhoods.

But here is the question: Why did it fall on residents and environmental groups to push these questions and demand answers. Isn't the job of the state Department of Environmental Protection?

State Sen. Andy Dinniman believes the DEP has mismanaged this project and wants them to take another look at the permitting process. It's hard to disagree with him.

You can read our editorial here.