• Fulmer Falls at George W. Childs Park

    Delaware Water Gap

    National Recreation Area NJ,PA

There are park alerts in effect.
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  • Hornbecks Creek Trail Partial Closure

    The trail is closed between the first and second waterfall; a portion of the trail has sloughed off, causing a hazardous condition. The first waterfall is accessible from the 209 trailhead and the second waterfall is accessible from Emory Road.

Water Quality

A small clear waterfall

Van Campens Brook NJ

The Delaware River within the park has very high quality water that is protected from degradation by Special Protection Water Regulations adopted by the Delaware River Basin Commission (DRBC). These unique regulations established definitions of existing conditions and prohibit measurable change. The National Park Service and the DRBC monitor to assess if the regulatory parameters are changing over time.

Most park streams also have very high quality water. A few streams flowing through urban areas show indications associated with human development including elevated fecal coliforms, increased nutrients, and increased sedimentation. All but one park stream originates outside park boundaries therefore adjacent land use practices can impact water quality. Regulations similar to those that protect the water quality of the river are proposed once baseline conditions are defined. Acid Rain

The lakes and ponds in the recreation area are generally of good water quality although some have significant aquatic plant growth that can cause depressed dissolved oxygen concentrations when large quantities of aquatic plants die and decay.


Water from the river, streams, ponds or lakes should not be consumed without proper treatment. Giardia cysts are common in natural surface waters in the region and the consumption of untreated water can cause illness.
| Drinking the Water


Did You Know?


... that hemlock groves in Delaware Water Gap National Recreation Area are threatened by a non-native insect, the hemlock woolly adelgid. Hemlocks provide shade for spectacular rhodondenron, for trout streams, and for native wildflowers. As hemlocks weaken and die, they are cut down for your safety. More...