Name Sites Samples
Georgetown County 5 20
Georgia 18 144
Germany 839 3969
Ghana 0 0
Gibson County 3 11
Gilchrist County 1 2
Giles County 2 6
Glades County 3 36
Gloucester County 3 22
Glynn County 11 35
Goochland County 2 3
Grafton County 4 24
Graham County 1 6
Grand Isle County 3 9
Granite County 1 4
Grant County 1 1
Grant County 1 3
Grant County 1 3
Grayson County 1 2
Greece 38 168
Greenbrier County 1 2
Greene County 2 9
Greene County 3 46
Greene County 3 8
Greene County 6 14
Greenland 18 273
Greensville County 1 1
Greenville County 2 10
Gregg County 2 4
Grenada County 1 2