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Environmental Data Resources, Inc.
<br /> Historical Topographic Map Report
<br /> Environmental Data Resources, lrc.'s (EDR) Historical TopoQraohic Map Report is designed to assist professionals
<br /> in evaluating potential liability on a target property, and its surrounding area, resulting from past activities. ASTLI E
<br /> 1527-97, Section 7.3 on Historical Use luformaiion, identities the prior use requirements for a Phase I environmental
<br /> site assessment. The ASTM standard requires a review of reasonably ascertainable standard historical sources.
<br /> Reasonably ascertainable is defined as information that is publicly available, obtainable from a source with
<br /> reasonable time and cost constrains. and practically reviewable.
<br /> To meet the prior use requirements of ASTyI E 1527-97, Section 7.3.2, the following standard historical sources
<br /> may be used: aerial photographs, city directories, fire insurance maps, topographic maps, property tax files, land title
<br /> records (although these cannot be the sole historical source consulted), building department records, or zoning/and
<br /> use records. ASTvl E OV-97 requires mill obvious uses of the property shall be identified from the present, back
<br /> to the property's obvious first developed use, or back to 1940, whichever is earlier. This task requires reviewing only
<br /> as many of the standard historical sources as are necessary, and that are reasonably ascertainable and likely to be
<br /> useful." (ASTM E 1527-97, Section 7.3.2 page 11.)
<br /> £DR's Historical Topographic Map Report includes a search of public and private color historical topographic map
<br /> collections.
<br /> Topographic Maps
<br /> A topographic map (topo) is a color coded tine-and-symbol representation of natural and selected artificial features
<br /> plotted to a scale. Topos show the shape, elevation, and development of the terrain in precise detail by using contour
<br /> lines and color coded symbols. Many features are shown by lines that may be straight, curved, solid, dashed, dotted,
<br /> or in any combination. The colors of the lines usually indicate similar classes of information. For example,
<br /> topographic contours (brown); takes. streams, irrigation ditches, etc. (blue); land grids and important roads (red);
<br /> secondary roads and trails, railroads, boundaries, etc. (black); and features that have been updated using aerial
<br /> photography, but not field verified, such as disturbed land areas (e.g., gravel pits) and newly developed water bodies
<br /> (purple).
<br /> For more than a century, the USGS has been creating and revising topographic maps for the entire country at a
<br /> variety of scales. There are about 60,000 U.S. Geological Survey (USGS) produced topo maps covering the United
<br /> States. Each map covers a specific quadrangle (quad) defined as a four-sided area bounded by latitude and longitude.
<br /> Historical topographic maps are a valuable historical resource for documenting the prior use of a property and its
<br /> surrounding area, and due to their frequent availability can be particularly helpful when other standard historical
<br /> sources(such as city directories, fire insurance maps, or aerial photographs) are not reasonably ascertainable.
<br /> Please call Environmental Data Resources, Inc. Nationwide Customer Service at
<br /> 1-800-352-0050 (8am- 8ptn ET)
<br /> with questions or comments about your report.
<br /> Thank you for your business!
<br /> Disclaimer
<br /> This report contains information obtained from a variety of public and private sources and Environmental Data
<br /> Resources, Inc._ makes no representation or warranry regarding the accuracy, or reliability, quality, or
<br /> completeness of said information or the information contained in this report. The customer shall assume fall
<br /> responsibility for use of this report. No warranty of merchantability or of fitness for particular purpose,
<br /> expressed or implied, shall apply and Environmental Data Resources, Inc. specifically disclaims the snaking of
<br /> such warranties. In no event shall Environmental Data Resources, Inc. be liable to anyone for special,
<br /> incidental, consequential, or exemplary damages.
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