Sample Name: SD-C 0-0.7

Sample date: October 8, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-8.4
Location Description: Supplemental

Contaminants above Illinois EPA soil background level  :

• Cadmium
• Iron
• Thallium

Latitude: +41.3208288      Longitude: -89.311209

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	5510 mg/kg
Antimony	3.3 mg/kg	<7.9 mg/kg
Arsenic	11.3 mg/kg	11 mg/kg
Barium	122 mg/kg	93 mg/kg
Beryllium	0.56 mg/kg	0.42 mg/kg
Cadmium	0.5 mg/kg	0.65 mg/kg
Calcium	5525 mg/kg	25100 mg/kg
Chromium	13 mg/kg	9.7 mg/kg
Cobalt	8.9 mg/kg	1.9 mg/kg
Copper	12 mg/kg	10 mg/kg
Iron	15000 mg/kg	17000 mg/kg
Lead	20.9 mg/kg	8.4 mg/kg
Magnesium	2700 mg/kg	10500 mg/kg
Manganese	630 mg/kg	171 mg/kg
Mercury	0.5 mg/kg	<0.11 mg/kg
Nickel	13 mg/kg	9 mg/kg
Potassium	1100 mg/kg	653 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<4.6 mg/kg
Silver	0.5 mg/kg	<1.3 mg/kg
Sodium	130 mg/kg	<654 mg/kg
Thallium	0.42 mg/kg	1.7 mg/kg
Vanadium	25 mg/kg	15 mg/kg
Zinc	60.2 mg/kg	53 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.