The Stony-Brook-Millstone Watershed has recently released a sobering report on water quality within the watershed basin area which covers a substantial portion of the waterways in central New Jersey. The report points out that high levels of bacteria are being absorbed in the water ways. Nevertheless some simple things can be done by individuals to help fix this problem. Namely pick up after your pets, avoid using fertilizers, and if you have a septic system make sure there is no leakage coming from your tank.
You can read the full report here.