Sample Name: SD-D 0-0.6

Sample date: October 8, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-7.2
Location Description: Supplemental

Contaminants above Illinois EPA soil background level  :

• Barium
• Cadmium
• Chromium
• Copper
• Lead
• Mercury
• Silver
• Thallium
• Zinc

Latitude: +41.320785      Longitude: -89.3105576

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	5610 mg/kg
Antimony	3.3 mg/kg	<7.9 mg/kg
Arsenic	11.3 mg/kg	6 mg/kg
Barium	122 mg/kg	138 mg/kg
Beryllium	0.56 mg/kg	0.42 mg/kg
Cadmium	0.5 mg/kg	11 mg/kg
Calcium	5525 mg/kg	56000 mg/kg
Chromium	13 mg/kg	14 mg/kg
Cobalt	8.9 mg/kg	5 mg/kg
Copper	12 mg/kg	42 mg/kg
Iron	15000 mg/kg	11200 mg/kg
Lead	20.9 mg/kg	117 mg/kg
Magnesium	2700 mg/kg	29500 mg/kg
Manganese	630 mg/kg	334 mg/kg
Mercury	0.5 mg/kg	0.1 mg/kg
Nickel	13 mg/kg	13 mg/kg
Potassium	1100 mg/kg	652 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<4.6 mg/kg
Silver	0.5 mg/kg	0.95 mg/kg
Sodium	130 mg/kg	<662 mg/kg
Thallium	0.42 mg/kg	0.91 mg/kg
Vanadium	25 mg/kg	13 mg/kg
Zinc	60.2 mg/kg	1630 mg/kg

Notes: A value of NT indicates that this sample was not tested for a particular contaminant. A value of ND indicates that the contaminant was not detected in the test that was done for it.