Site Description

Site ID: RC13
Tewksbury Township, Hunterdon County
Stream Category: FW2-TP(C1) (Category 1, Trout Production waters)
Site monitors Rockaway Creek South Branch subwatershed (HUC: 02030105050100)
The site is located on private property on Blossom Hill Road.

What is being monitored at this site?

Water Quality Data

Each June, Raritan Headwaters scientists and volunteers visit 72 stream sites in the North and South Branch Raritan Watershed Region (WMA8) of New Jersey to collect data on the health of our streams.  Data collected includes a sample of benthic macroinvertebrates (used to calculate the High Gradient Macroinvertebrate Index;HGMI score), an assessment of the habitat in and around the stream, and chemical conditions in the water.  Chemical parameters include dissolved oxygen, phosphate, chloride, specific conductance, nitrate, turbidity, pH, and temperature. The HGMI is used by the NJ Department of Environmental Protection (NJDEP) and the US Environmental Protection Agency (USEPA) to determine if the site is meeting state and national water quality standards under the Clean Water Act. Click here to learn more about our stream monitoring program and water quality reports.


Site Data for RC13

Select a parameter below to view annual data. Hover over the chart to get more information.

Threats and Recommendations

While this site is not being actively monitored annually, it is an active site.  This site is located within a stretch of the Rockaway Creek that is Category 1, Trout production, meaning that this stream has been awarded a higher level of protection due to it’s high water quality and ability to maintain reproducing trout populations. At sites like this, preservation is key.




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