Sample Name: N.5-1-0-0.5

Sample date: April 16, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-6
Location Description: Chemistry Core

Contaminants above Illinois EPA soil background level  :

• Arsenic
• Barium
• Beryllium
• Cadmium
• Chromium
• Copper
• Iron
• Lead
• Manganese
• Mercury
• Selenium
• Silver
• Thallium
• Zinc

Latitude: +41.3217469      Longitude: -89.3047432

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	7650 mg/kg
Antimony	3.3 mg/kg	<9.3 mg/kg
Arsenic	11.3 mg/kg	30 mg/kg
Barium	122 mg/kg	1660 mg/kg
Beryllium	0.56 mg/kg	0.83 mg/kg
Cadmium	0.5 mg/kg	206 mg/kg
Calcium	5525 mg/kg	84900 mg/kg
Chromium	13 mg/kg	24 mg/kg
Cobalt	8.9 mg/kg	11 mg/kg
Copper	12 mg/kg	277 mg/kg
Iron	15000 mg/kg	24400 mg/kg
Lead	20.9 mg/kg	2860 mg/kg
Magnesium	2700 mg/kg	7210 mg/kg
Manganese	630 mg/kg	669 mg/kg
Mercury	0.5 mg/kg	9 mg/kg
Nickel	13 mg/kg	20 mg/kg
Potassium	1100 mg/kg	910 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	18 mg/kg
Silver	0.5 mg/kg	5.7 mg/kg
Sodium	130 mg/kg	370 mg/kg
Thallium	0.42 mg/kg	2.1 mg/kg
Vanadium	25 mg/kg	22 mg/kg
Zinc	60.2 mg/kg	10000 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.