Sample Name: L2-14.0-15.0

Sample date: April 14, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 14-15 feet
Location Description: Chemistry Core

Contaminants above Illinois EPA soil background level  :

• Mercury
• Selenium
• Silver
• Thallium

Latitude: +41.3199355      Longitude: -89.3103364

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	3570 mg/kg
Antimony	3.3 mg/kg	<6.6 mg/kg
Arsenic	11.3 mg/kg	3.4 mg/kg
Barium	122 mg/kg	41 mg/kg
Beryllium	0.56 mg/kg	0.25 mg/kg
Cadmium	0.5 mg/kg	0.22 mg/kg
Calcium	5525 mg/kg	39300 mg/kg
Chromium	13 mg/kg	6.7 mg/kg
Cobalt	8.9 mg/kg	8.3 mg/kg
Copper	12 mg/kg	6 mg/kg
Iron	15000 mg/kg	9230 mg/kg
Lead	20.9 mg/kg	4.9 mg/kg
Magnesium	2700 mg/kg	17500 mg/kg
Manganese	630 mg/kg	188 mg/kg
Mercury	0.5 mg/kg	0.11 mg/kg
Nickel	13 mg/kg	14 mg/kg
Potassium	1100 mg/kg	414 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	3.8 mg/kg
Silver	0.5 mg/kg	1.1 mg/kg
Sodium	130 mg/kg	549 mg/kg
Thallium	0.42 mg/kg	0.52 mg/kg
Vanadium	25 mg/kg	11 mg/kg
Zinc	60.2 mg/kg	27 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.