Sample Name: L1.5-0.5-1.1

Sample date: April 10, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0.5-1.1ft
Location Description: Sediment

Contaminants above Illinois EPA soil background level  :

• Barium
• Cadmium
• Copper
• Lead
• Mercury
• Zinc

Latitude: +41.3207758      Longitude: -89.3103513

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	1,970 mg/kg
Antimony	3.3 mg/kg	<7.5 mg/kg
Arsenic	11.3 mg/kg	4.2 mg/kg
Barium	122 mg/kg	139 mg/kg
Beryllium	0.56 mg/kg	0.13 mg/kg
Cadmium	0.5 mg/kg	5.4 mg/kg
Calcium	5525 mg/kg	29,500 mg/kg
Chromium	13 mg/kg	5.9 mg/kg
Cobalt	8.9 mg/kg	3.1 mg/kg
Copper	12 mg/kg	14 mg/kg
Iron	15000 mg/kg	6,160 mg/kg
Lead	20.9 mg/kg	53 mg/kg
Magnesium	2700 mg/kg	13,400 mg/kg
Manganese	630 mg/kg	252 mg/kg
Mercury	0.5 mg/kg	0.078 mg/kg
Nickel	13 mg/kg	6.6 mg/kg
Potassium	1100 mg/kg	261 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<4.4 mg/kg
Silver	0.5 mg/kg	0.18 mg/kg
Sodium	130 mg/kg	<626 mg/kg
Thallium	0.42 mg/kg	<3.1 mg/kg
Vanadium	25 mg/kg	10 mg/kg
Zinc	60.2 mg/kg	600 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.