Sample Name: L.5-2-0.5-1.0

Sample date: April 12, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0.5-1ft
Location Description: Sediment

Contaminants above Illinois EPA soil background level  :

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

Latitude: +41.3199453      Longitude: -89.3092095

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	21,400 mg/kg
Antimony	3.3 mg/kg	<14 mg/kg
Arsenic	11.3 mg/kg	10 mg/kg
Barium	122 mg/kg	198 mg/kg
Beryllium	0.56 mg/kg	0.99 mg/kg
Cadmium	0.5 mg/kg	22 mg/kg
Calcium	5525 mg/kg	30,100 mg/kg
Chromium	13 mg/kg	49 mg/kg
Cobalt	8.9 mg/kg	15 mg/kg
Copper	12 mg/kg	182 mg/kg
Iron	15000 mg/kg	32,000 mg/kg
Lead	20.9 mg/kg	104 mg/kg
Magnesium	2700 mg/kg	11,600 mg/kg
Manganese	630 mg/kg	937 mg/kg
Mercury	0.5 mg/kg	0.45 mg/kg
Nickel	13 mg/kg	36 mg/kg
Potassium	1100 mg/kg	3,310 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<8.2 mg/kg
Silver	0.5 mg/kg	1.1 mg/kg
Sodium	130 mg/kg	338 mg/kg
Thallium	0.42 mg/kg	1.2 mg/kg
Vanadium	25 mg/kg	40 mg/kg
Zinc	60.2 mg/kg	3,590 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.