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FALSE
potomac_008_continuity_topseal
002
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GCS_WGS_1984
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20230601
20560500
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FGDC
Bureau of Economic Geology
10100 Burnet Rd. Bldg. 130
Austin
TX
78729
US
8-5
20230601
ArcGIS Metadata
1.0
BEG
10100 Burnet Rd. Bldg 139
Austin
Texas
78758
US
Enterprise Geodatabase Feature Class
0.000
Potomac leakage distribution
<DIV STYLE="text-align:Left;"><P STYLE="text-align:Justify;font-size:16ptmargin:7 0 7 0;"><SPAN><SPAN>The lower Potomac confining unit is regionally continuous from North Carolina to New Jersey and generally ranges in thickness from 50 to 100 ft but exceeds 1,000 ft toward the mouth of Delaware Bay (Trapp, 1992). Vertical leakage generally ranges from 1 ´ 10</SPAN></SPAN><SPAN><SPAN>-8</SPAN></SPAN><SPAN><SPAN> to 1 ´ 10</SPAN></SPAN><SPAN><SPAN>-4</SPAN></SPAN><SPAN><SPAN> (ft/day) (Trapp, 1992). Pope and Gordon (1999) presented a map showing the leakage distribution of the lower Potomac confining unit across southeastern New Jersey, and this map is used for the GIS. </SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV>
Leakage Distribution for Potomac Group
Pope, D. A., and Gordon, A. D., 1999, Simulation of ground-water flow and movement of the freshwater-saltwater interface in the New Jersey coastal plain: U.S. Geological Survey Water-Resources Investigations Report 98-4216, 159 p.
New Jersey
Delaware
Maryland
Lower Potomac Group
Lower Potomac Group
Maryland
Delaware
New Jersey
Access constraints: Restriction Code: other restrictions; Other Constraints: Access constraints: None
See access and use constraints information.
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source_organization
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hyperlink
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