Sample Name: N3-0-0.5

Sample date: April 18, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-0.5ft
Location Description: Sediment

Contaminants above Illinois EPA soil background level  :

• Aluminum
• Cadmium
• Chromium
• Copper
• Iron
• Lead
• Mercury
• Selenium
• Zinc

Latitude: +41.3183282      Longitude: -89.3057635

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	9,730 mg/kg
Antimony	3.3 mg/kg	<11 mg/kg
Arsenic	11.3 mg/kg	6.1 mg/kg
Barium	122 mg/kg	122 mg/kg
Beryllium	0.56 mg/kg	0.51 mg/kg
Cadmium	0.5 mg/kg	12 mg/kg
Calcium	5525 mg/kg	19,400 mg/kg
Chromium	13 mg/kg	23 mg/kg
Cobalt	8.9 mg/kg	8.9 mg/kg
Copper	12 mg/kg	63 mg/kg
Iron	15000 mg/kg	17,800 mg/kg
Lead	20.9 mg/kg	58 mg/kg
Magnesium	2700 mg/kg	6,130 mg/kg
Manganese	630 mg/kg	604 mg/kg
Mercury	0.5 mg/kg	0.29 mg/kg
Nickel	13 mg/kg	20 mg/kg
Potassium	1100 mg/kg	1,430 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	0.57 mg/kg
Silver	0.5 mg/kg	0.45 mg/kg
Sodium	130 mg/kg	<881 mg/kg
Thallium	0.42 mg/kg	<4.4 mg/kg
Vanadium	25 mg/kg	19 mg/kg
Zinc	60.2 mg/kg	2,010 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.