Sample Name: SD-F 0-0.5

Sample date: October 10, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-6
Location Description: Supplemental

Contaminants above Illinois EPA soil background level  :

• Arsenic
• Barium
• Cadmium
• Copper
• Iron
• Lead
• Manganese
• Mercury
• Silver
• Thallium
• Vanadium
• Zinc
• Cyanide

Latitude: +41.3207666      Longitude: -89.3122158

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	3860 mg/kg
Antimony	3.3 mg/kg	<7.7 mg/kg
Arsenic	11.3 mg/kg	31 mg/kg
Barium	122 mg/kg	399 mg/kg
Beryllium	0.56 mg/kg	0.46 mg/kg
Cadmium	0.5 mg/kg	22 mg/kg
Calcium	5525 mg/kg	30100 mg/kg
Chromium	13 mg/kg	9.7 mg/kg
Cobalt	8.9 mg/kg	7.8 mg/kg
Copper	12 mg/kg	158 mg/kg
Iron	15000 mg/kg	20300 mg/kg
Lead	20.9 mg/kg	1330 mg/kg
Magnesium	2700 mg/kg	13300 mg/kg
Manganese	630 mg/kg	667 mg/kg
Mercury	0.5 mg/kg	0.17 mg/kg
Nickel	13 mg/kg	16 mg/kg
Potassium	1100 mg/kg	320 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<4.5 mg/kg
Silver	0.5 mg/kg	10 mg/kg
Sodium	130 mg/kg	273 mg/kg
Thallium	0.42 mg/kg	2.3 mg/kg
Vanadium	25 mg/kg	54 mg/kg
Zinc	60.2 mg/kg	7210 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.