Digital Geodata Series
DGS05-2 New Jersey's Ambient Ground Water Quality Network Data
Abstract
The Ambient Ground-Water Quality Monitoring Network (AGWQMN) is an NJDEP/USGS
cooperative project. The original (pre-1999) network mainly focused on
determining ground-water quality as a function of geology throughout New
Jersey using public, private, irrigation, observation and other types of
existing wells. The goals of the recently completed redesigned network are
to determine the status and trends of shallow ground-water quality as a function
of land use related non-point source pollution in New Jersey. Most of the
shallow wells used were installed by the NJGS or their contractors to meet
the goals of the redesigned network. This network consists of 150 wells screened
at the water table that are sampled 30 per year, on a 5-year cycle. The first
cycle was completed and the second started in 2004. The New Jersey Geological
Survey (NJGS) manages the network design, well installation, well maintenance
and data interpretation and reporting. The NJDEP Bureau of Fresh Water and
Biological Monitoring and the United States Geological Survery (USGS) collect
the well-water samples, and the USGS laboratory in Denver, Colorado analyzes
them. Chemical and physical parameters analyzed at each well include: field
parameters such as pH, specific conductance, dissolved oxygen, water temperature
and alkalinity; major ions, trace elements (metals), gross-alpha particle
activity (radionuclides), volatile organic compounds, nutrients, and pesticides.
This update (2007) includes the data from the remaining 57 wells (sampled in 2003 and 2004) out of the 150 wells which comprise the redesigned NJAGWQMN. This data completes one full sampling cycle of the network.
The download compressed (zip) file contains ESRI shape files and metadata
for each of the following layers:
| Field parameters and Major ions |
|
|
65KB |
| Metals |
|
|
55KB |
| Nutrients |
|
|
48KB |
| Pesticides |
|
|
35KB |
| Radionuclides |
|
|
43KB |
| Volatile Organic Compounds (VOC) |
|
|
50KB |
Image showing locations of wells used for the network.
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