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Identifying
Project-Location for Natural Heritage Review |
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Requirements: |
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The Department of Conservation reviews
sites for Natural Heritage issues visually, normally on a USGS topographic
map background. ► We prefer to see a clear topographic map showing
each project site, identifying the quadrangle name and identifying either
Section/ Township/ Range(S/T/R) or identifying a reference point with UTM or Latitude/ Longitude coordinates.
[In most cases, projects can
determine these parameters using free
sites available on the internet.] ► Street addresses are acceptable if the requestor
also identifies a public website (e.g. Mapquest or Terraserver) that maps accurately to them. Some
rural and recently established addresses do not map properly on some sites.
► Some sites do not have Section/ Township/ Range
descriptions because land-ownership was established based on Spanish and
French systems predating the Public Land Survey System. This is common along the ► Large or ongoing projects (e.g. petroleum
pipelines, road projects or wind farms) should provide a GIS shapefile (based
on UTM Zone 15N NAD 1983)
if possible. |
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Tips |
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► Several public websites can
identify or help you identify location coordinates, or to print or save
maps. These include Terraserver, CARES, the National Map Viewer, etc. ► Since animals, plant communities and water all move
around, we routinely look at all natural heritage records within a mile of
project boundaries. This makes precision in drawing
project site boundaries less important.
Unless the project involves multiple locations or a long, thin project
site, a rectangle or circle containing it works just as well as a detailed
drawing of boundaries. ► It is often adequate to mark a reference point and
describe the project site in reference to it (e.g. "within 200 feet of
the point," "within ¼ mile SE along the SW side of the road and
within 200 feet of the road," or "within a rectangle extending east
by X-feet and south by Y-feet"). ► Defining a project by section often produces more
records of concern than defining with more precision. Sections
are typically about 1-mile square, but most projects are much smaller. For example, for a project to build new
curbs at an intersection where range and township lines meet, location based
on S/T/R will mean we look for heritage records near any of the four sections
when we may need to consider only those near a circle within 200 feet of the
center of the intersection. ► Be sure to state if grant or permit requirements
require investigation of some specific zone, e.g. all issues within 5 miles,
or effects 15 miles downstream. |