There are many lakes and ponds in this area, but the largest is Lake Lenape, near Mays Landing. The Great Egg Harbor River as monitored near Sicklerville, at Folsom, and at Weymouth is characteristic of a Pinelands waterbody exhibiting varying degrees of disturbance. The degree of disturbance declines as one proceeds downstream from Sicklerville. Water quality has improved dramatically at Sicklerville based upon comparisons with nutrient, BOD, and dissolved oxygen data collected in 1986 and 1991. Water quality has also improved at Folsom and at Weymouth, where total phosphorus has declined as compared to the same previous assessment.
Sanitary quality is good at all three locations.
The Berlin Borough STP, which has been a problem in the past, has been converted into a pump station with the effluent now being processed at the Camden County MUA in Camden. The effluent is now discharged directly into the Delaware River. Below Mays Landing, nonpoint source pollution is believed to shift from agricultural sources to suburban development - storm sewers, road surfaces and septic systems. In the assessed tributaries feeding into the Upper Great Egg Harbor River, stormwater runoff and suburban development appear to be the major contributors of nonpoint source pollution.