Read Me File For Plate VII and Associated GIS Layers*:
Clarendon Springs Formation
(This read me file written by: Jonathan
Kim, Vermont Geological Survey, August 2002)
Required Files cspolys.dbf, cspolys.shp, cspolys.shx
of the Clarendon Springs Formation in Vermont. This coverage was digitized
in Arcview 3.2a from a georectified image of the 1:250,000 scale Centennial
Geologic Map of Vermont (Doll, 1961). The georectified image was converted
from NAD27 to NAD 83. The georectified image file that the Clarendon
Springs Formation data layer was digitized from is included and is called
Geodetic Information NAD 83 Vermont Stateplane coordinates (Zone
5526) in meters
Doll, C., 1961, Centennial Geologic Map of Vermont, Vermont Geological
Survey, scale- 1:250,000 (Digital Image Version).
This coverage was digitized from original 1:250,000 scale maps and data
and, therefore, use at this scale is recommended. Accuracy may diminish
when enlarged beyond this scale.
The only way to determine with certainty if groundwater from a particular
well has elevated radionuclide levels is to have the water tested by
a certified lab. The Vermont Department of Health recommends that all
private well owners test their wells for naturally-occurring alpha radiation
every 5 years http://healthvermont.gov/enviro/ph_lab/water_test.aspx#two.
This map should not be used as a replacement for detailed, site-specific
studies by competent technical personnel.
This map (and the other eight maps in this series) displays geological
and geophysical data compiled from surveys conducted at various times
over several decades. The information used in preparing the map(s) represents
the best data possessed by the Vermont Agency of Natural Resources at
the time of production. The data is subject to revision at any time
and the map user should contact the Vermont Agency of Natural Resources
to determine whether there have been any changes in the data on which
the map was based.
Although every effort has been made to faithfully portray the information
from the surveys, the Agency of Natural Resources cannot vouch for the
accuracy of the data on which the map(s) was based. No warranty as to
the accuracy or the usefulness of the data on the map(s) is expressed
*GIS Data available from Vermont Geological Survey, 103 South Main
Street, Waterbury, Vermont 05671, 802/241-3608, firstname.lastname@example.org