Sample Name: O.5-1.5-12-13.2

Sample date: April 15, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 12-13.2 feet
Location Description: Chemsitry Core

Contaminants above Illinois EPA soil background level  :

• Copper
• Thallium

Latitude: +41.3209428      Longitude: -89.3024733

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	6630 mg/kg
Antimony	3.3 mg/kg	<7.3 mg/kg
Arsenic	11.3 mg/kg	2.5 mg/kg
Barium	122 mg/kg	62 mg/kg
Beryllium	0.56 mg/kg	0.39 mg/kg
Cadmium	0.5 mg/kg	0.41 mg/kg
Calcium	5525 mg/kg	80800 mg/kg
Chromium	13 mg/kg	12 mg/kg
Cobalt	8.9 mg/kg	6.5 mg/kg
Copper	12 mg/kg	16 mg/kg
Iron	15000 mg/kg	12600 mg/kg
Lead	20.9 mg/kg	9.3 mg/kg
Magnesium	2700 mg/kg	30900 mg/kg
Manganese	630 mg/kg	498 mg/kg
Mercury	0.5 mg/kg	<0.13 mg/kg
Nickel	13 mg/kg	16 mg/kg
Potassium	1100 mg/kg	1270 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<4.3 mg/kg
Silver	0.5 mg/kg	<1.2 mg/kg
Sodium	130 mg/kg	153 mg/kg
Thallium	0.42 mg/kg	0.65 mg/kg
Vanadium	25 mg/kg	15 mg/kg
Zinc	60.2 mg/kg	39 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.