Terri L Arnold/WRD/USGS/DOI
05/15/2008 12:32 PM	To
Michael J Moran/WRD/USGS/DOI@USGS
cc

bcc

Subject
Re: PWSs in NE
	
		
		Hi Mike.
		
		Sorry to bother you again.  I noticed on some of the maps you sent me, the 
PAs shown on your maps are not the PA coverages that I have.  It looks 
like some of the PAs are being combined in your maps.  
		
		The one I am having trouble with in particular is the Piedmont Blue Ridge 
Crystalline.  The public supply wells labeled as being int he Piedmont 
Blue Ridge Crystalline don't overlay my principal aquifer coverage from 
the GW atlas. Looking at the Ground Water Atlas, it looks like these wells 
overly the Blue Ridge Province and the 'Reading Prong'. Do you have a 
coverage or shape file of this? Where did you get your map from? Here is 
what the coverage I have looks like:
		
		
		
		This isn't a map I need to help you with, but ...a map you sent me that I 
think is not showing the principal aquifers quite right is the 
Piedmont/valley and ridge Carbonate-rock aquifers.  It looks like your map 
combines the Piedmont, Valley and Ridge, and NY and NE carbonate 
aquifers.  Here's my version:
		
		...still working... let me know if you know a source for the Piedmont BR 
Crystalline map.
		
		-Terri
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------------------------
Terri L. Arnold, GIS Specialist
U.S. Geological Survey
National Water-Quality Assessment Program
1201 West University Ave., Suite 100
Urbana, Illinois 61801-2347

tlarnold@usgs.gov, (217) 328-9702

Expressed opinions are my own and not those of the U.S. Geological Survey