ML19309C420
| ML19309C420 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/01/1980 |
| From: | Smith I Atomic Safety and Licensing Board Panel |
| To: | |
| References | |
| NUDOCS 8004080579 | |
| Download: ML19309C420 (4) | |
Text
Bd 4/1/80 m
UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION y
~
COCKETED ATOMIC SAFETY AND LICENSING BOARD
^
g usNnc Ivan W. Smith, Chairman 2
APR 11980 m r Dr. Walter H. Jordan
'4 Dr. Linda W. Little 6
Ci gesmetary smke 3g't emt
- n (b
In the Matter of
)
)
METROPOLITAN EDISON COMPANY )
Docket No. 50-289
)
(Restart)
(Three Mile Island Nuclear
)
Station, Unit No. 1)
)
MEMORANDUM The board is in the process of selecting a computer-plotted map with overlays depicting the vicinity of Three Mi.le Island as a board exhibit in this proceeding.
We envision that it will be useful to the board and parties principally on emergency planning issues.
A copy of a summary description of the type of maps available is attached.
Board member, Dr. Linda Little, is taking the primary responsibility for the board in selecting the appropriate features of the map.
She is meeting with officials of the U. S. Geological Survey for this purpose.
Mr. Germain LaRoche, an employee of the NRC will assist Dr.
Little.
The board does not regard Mr. LaRoche's assistance as an ex_ parte communication because he is providing administrative 8004080579
2 support to the board.
However, there will be no discussion
~
of the merits of any issue in this proceeding in the meetings to select the map features.
THE ATOMIC SAFETY AND LICENSING BOARD
Attachment:
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As stated By Ivan W. Smith, Chairman Bethesda, Maryland April 1, 1980 I
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]P+>g Computer-Plotted Map of Land Use and Land Cover, Three Mile Island and Vicinity, M V
a With Census Tracts m
Explanation of a map illustrating the availability of digittred land use and iand cover information, and one timely application.
A nuclear accident occurred in late March 1979 at the Three Mile Island powerplaM on the Susquehanna River,10 miles southeast of Pennsylvania's state capital at Harrisburg. The accident raises questions about where such plants are located and what areas are affected.
Using river water to cool the turbines and the nuclear reactor, the Three Mile Island thermal nuclear powerplant occupies an insular location in an area of relatively low population density.
Even so, it is at the center of a triangle formed by populous electricity-consuming metropolitan centers at Harrisburg (10 miles away), York (13 miles), and Lancaster (23 miles). Small residential areas do tie nearby, but extensive open water, agricultural land, and forest land dominate the immediate vicinity. Suburban Middletown, however, lies less than 5 miles north. Off to the southeast
-and usually downwind-lies industnal Lancaster in the heart of a rich agricultural area.
A current land use and land cover map of the plant site and vicinity that is keyed to political units and census st1tistical areas is one tool which the curious layman can understand and which the politician, planner, and utility company can use in decisionmaking. The accompanying figure is a reduced reproduction of such a map. An unannotated version was drawn in one evening's time by a U.S. Geological Survey computer-driven mapping plotter. At one scale, it overlies a USGC topographic base map which provides other essential information, such as roads, mountus, and drainage lines. A separate legend, also prepared by computer, identifies by color and rhading pattern 10 categories of Levet il land use or land cover. In general, the smaller land ut 4 polygons in darker tones are urban and built-up areas. The larger polygons in lighter tones are agricultural and forested areas, or water bodies. The rings spaced at ari: 1erval of 5 miles are use 1 in analysis, planning, and assessment of impact. The gnd !ines spaced a. an interval of 10 km art in the Universal Transverse Mercator (UTM) rectangular coordinate system. They are used fN focation control in mapping and analysis by computer, but locations can also be expressed in geographic coordinates.
The land use/ land cover and census areas information is reconstructed from a stotewide digital data base completed in 1978 as a cooperative effort between the State of Pennsylva iia's Department of Environmental Resources and the U.S. Department of the Interior's (ieological Survey. The corresponding overlays of associated maps for the Harrisburg and Baltimore 1' x 2*
tcpographic map quads have been open filed at a scale of 1:250,000. These show ceasus county subdivisions, political units, hydrologic units, and Federal land ownership. By 1982 similar map coverages will be available for the entire country. Coverage in digital tape form-frc.m which this map is made-will follow. The land use maps are compiled largely from remotely i ensed data.
which are also to be used in map revision and update.
The USGS Geographic Information Retrieval and Analysis System (GIRAS) geograi NC information system makes possible not only the mapping by computer, but also the correlating of land use area measurements with census and other data, the updating of all data sets, and tu retrieving and analyzing of data. The system is thus a tool for dealing with such resource management problems as powerplant and powerline site selection. planning of wastewater treatment facilities by drCqage basin, assessing the impact of natural or man-made hazards, and preparing for emergencies. The map of Three Mile Island not only graphically dramatizes these needs but also the capability to meet them.
Although data are tiled by such mapping units as the Harr sourg and Baltimore 1" x 2*
topographic mao quads jhe USGS GIRAS gecinfermation system can also recall data centered on other t.icas. such as Three Mdo Is:and and \\icinity. which lies in more than one quad. At the user's
direction,it can also portray data in different combinations and at different scales. Except for the census tracts and some place names-for which the computer file presently uses numsrical codes
-the accompanying figure is in the style cf a multicolor, computer-drafted and shaded pen plot.
Other graphic output modes are also possible, including video display.
Availability of maps and dafa.-Besides the maps, digital tapes and selected statistical summanes are becoming available for selected areas througnout the United States. From the tapes, a great variety of maps and tables can be made by other users, as well as by USGS. For information, contact National Cartographic Information Centers at USGS offices in Reston, Va., Rolla, Mo., Denver, Colo.,
and Menlo Park. Calif., or contact:
Geography Program U.S. Geological Survey 710 National Center Reston, VA 22092 Telephone: (703) 860-6256 For information about a full size 46 x 58 inch land use map exhibit of Three Mile Island and vicinity call James R. Wray at USGS (703-860-6345), or Germain LaRoche at the U.S. Nuc(ea Figgulato Commission (301-492-8289).
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