Sample Name: M.5-1.5-8-10

Sample date: April 16, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 8-10 feet
Location Description: Chemistry Core

Contaminants above Illinois EPA soil background level  :

• Barium
• Cadmium
• Chromium
• Copper
• Iron
• Manganese
• Mercury
• Thallium
• Zinc

Latitude: +41.3208493      Longitude: -89.3069948

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	9030 mg/kg
Antimony	3.3 mg/kg	<9.9 mg/kg
Arsenic	11.3 mg/kg	5.4 mg/kg
Barium	122 mg/kg	138 mg/kg
Beryllium	0.56 mg/kg	0.55 mg/kg
Cadmium	0.5 mg/kg	1.3 mg/kg
Calcium	5525 mg/kg	83800 mg/kg
Chromium	13 mg/kg	16 mg/kg
Cobalt	8.9 mg/kg	8.5 mg/kg
Copper	12 mg/kg	19 mg/kg
Iron	15000 mg/kg	26900 mg/kg
Lead	20.9 mg/kg	12 mg/kg
Magnesium	2700 mg/kg	16100 mg/kg
Manganese	630 mg/kg	925 mg/kg
Mercury	0.5 mg/kg	0.064 mg/kg
Nickel	13 mg/kg	21 mg/kg
Potassium	1100 mg/kg	1640 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<5.8 mg/kg
Silver	0.5 mg/kg	0.1 mg/kg
Sodium	130 mg/kg	<822 mg/kg
Thallium	0.42 mg/kg	0.95 mg/kg
Vanadium	25 mg/kg	21 mg/kg
Zinc	60.2 mg/kg	145 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.