Sample Name: DUP-004

Sample date: April 11, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-0.5ft
Location Description: Sediment

Contaminants above Illinois EPA soil background level  :

• Aluminum
• Barium
• Beryllium
• Cadmium
• Chromium
• Copper
• Iron
• Lead
• Mercury
• Silver
• Vanadium
• Zinc

Latitude: +41.3182793      Longitude: -89.3080297

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	21,800 mg/kg
Antimony	3.3 mg/kg	NT mg/kg
Arsenic	11.3 mg/kg	9.3 mg/kg
Barium	122 mg/kg	244 mg/kg
Beryllium	0.56 mg/kg	1.2 mg/kg
Cadmium	0.5 mg/kg	8.2 mg/kg
Calcium	5525 mg/kg	13,700 mg/kg
Chromium	13 mg/kg	62 mg/kg
Cobalt	8.9 mg/kg	11 mg/kg
Copper	12 mg/kg	59 mg/kg
Iron	15000 mg/kg	31,000 mg/kg
Lead	20.9 mg/kg	60 mg/kg
Magnesium	2700 mg/kg	8,600 mg/kg
Manganese	630 mg/kg	440 mg/kg
Mercury	0.5 mg/kg	0.3 mg/kg
Nickel	13 mg/kg	41 mg/kg
Potassium	1100 mg/kg	3,070 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<6.2 mg/kg
Silver	0.5 mg/kg	0.84 mg/kg
Sodium	130 mg/kg	<885 mg/kg
Thallium	0.42 mg/kg	<4.4 mg/kg
Vanadium	25 mg/kg	42 mg/kg
Zinc	60.2 mg/kg	428 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.