UPDATED: 5:40 p.m.
On Tuesday, the office issued a public nuisance notice, claiming the pipeline's current condition and construction is threatening public health, safety and wellness.
A few of the purported nuisances, they say, include exposed pipes, permit violations, and inconsistent drilling practices that leak fluids into waterways, limiting access to clean drinking water.
"This is a specific measure under the law, under the Pennsylvania Clean Streams Act that allows for the district attorney's office to bring this nuisance action and essentially, it is saying that this company through, its actions, has created a public nuisance which is generally described as any activity that threatens public safety health or welfare," said Chester County First Assistant District Attorney Michael Noone
Noone said his office will do "everything in its power to ensure the safety of the community."
"Citizens deserve to live peacefully in their homes, work in their communities, and educate their children safely in their schools," he continued. "This step will force Energy Transfer to begin to right their wrongs and fix these problems."
In a statement, Energy Transfer Partners said they believe they are "well on our way to resolving the issues identified in the notice and look forward to discussing these issues with the DA’s office."
The company insisted they have "completed all required remediation as a result of inadvertent returns or other construction related discharges from the Mariner East 2 project in Chester County consistent with our approved permits."