1. Piedmont and Blue Ridge Crystalline rocks with glacial cover

2. Piedmont Chimney rock Blue Ridge Province

3. flow through fractures

5. Transition Fractured metamorphic and igneous rock Saprolite

6. Gneiss, schist bedrock Granite or other intrusive bedrock Distinct transition Gradational transition

7. Storage and transmission properties High porosity S y ? porosity Low storage 10 -5 10 -4 cm/s

8. Saprolite sampled at different depths. Measure density and chemical composition. S.G. decreases from 2.1 in rock to 1.6 in shallow saprolite. S.G. decreases as minerals are altered and mass is removed. 0.5 gm/cc removed during weathering. Chemical concentrations indicate S.G. change largely due to weathering of feldspar to kaolinite as a two-stage reaction.

13. Saprolite thickness Typically 50 ft, but variable 10-100 ft w.t. 20-60 ft bgs Frx zones in valleys Flat-lying frx

15. Saprolite thickness Greatest over valley or highland? Could be either

16. Ground watersheds

23. Lineaments

24. Specific capacity

25. Effects of lineaments on well yields in the Piedmont Other effects of location on well yield Factor of 2 to 7 difference in yield Factors from 3 to 25 between valley and hill

26. Well yields in different rock types and regions in the Piedmont 15-30 gpm typical Roughly 20 gpm

28. Effects of well depth and diameter on yield in the Piedmont. Based on Daniels

30. Glaciated crystalline rocks in northern Appalachians

31. Other Hydrogeologic Settings in the Piedmont

34. Stockton Fm. Lockatong Fm. Passaic Fm. Orange Mt. Basalt Feltville Fm. Preakness Basalt Towaco Fm. Hook Mt. Basalt Boonton Fm. Conglomerates Palisade sill

36. Newark Basin, NJ Mesozoic Basins Sandstone aquifers Shale confining units Redbeds in the Hartford Basin, Conn Conglomerate Basalt Arkose

38. Carbonate rock aquifers

39. Water quality in Crystalline Rock aquifers

40. Crystalline rock Triassic Basin Carbonate rock meq/L

41. Crystalline Rock Triassic Basins Carbonate Aquifers

42. SC, GA, Al =100 mgpd