This seems to be very similar to what happened on the SRC a few years back.
https://www.newjerseyhills.com/hunte...39a62c388.html
http://www.njfishing.com/forums/showthread.php?t=98451
In the SRC instance, the quarry was permitted to dump small amounts of sediment into the creek, but the pump was "left on" causing a mass amount of sediment to be released. I called every authority/association/news outlet i could to alert them about this. The quarry has since paid for and completed all the clean up and the town of Glen Gardner was awarded a large grant to help protect and improve the creek.
This is a horrible thing to have happen to a body of water you love, speaking from experience there. The quarry should be held accountable, and if i were a homeowner there i would be calling management every day to see what they are doing to fix the problem.