Sample Name: L2-12.0-14.0

Sample date: April 14, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 12-14 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	4590 mg/kg
Antimony	3.3 mg/kg	NT mg/kg
Arsenic	11.3 mg/kg	1.2 mg/kg
Barium	122 mg/kg	52 mg/kg
Beryllium	0.56 mg/kg	0.29 mg/kg
Cadmium	0.5 mg/kg	0.38 mg/kg
Calcium	5525 mg/kg	65600 mg/kg
Chromium	13 mg/kg	8.9 mg/kg
Cobalt	8.9 mg/kg	4.3 mg/kg
Copper	12 mg/kg	12 mg/kg
Iron	15000 mg/kg	9360 mg/kg
Lead	20.9 mg/kg	7.1 mg/kg
Magnesium	2700 mg/kg	24100 mg/kg
Manganese	630 mg/kg	309 mg/kg
Mercury	0.5 mg/kg	0.1 mg/kg
Nickel	13 mg/kg	12 mg/kg
Potassium	1100 mg/kg	641 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	4.2 mg/kg
Silver	0.5 mg/kg	1.2 mg/kg
Sodium	130 mg/kg	597 mg/kg
Thallium	0.42 mg/kg	0.74 mg/kg
Vanadium	25 mg/kg	12 mg/kg
Zinc	60.2 mg/kg	31 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.