Sample Name: M.5-1.5-12-12.7

Sample date: April 16, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 12-12.7 feet
Location Description: Chemistry Core

Contaminants above Illinois EPA soil background level  :

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

Latitude: +41.3208493      Longitude: -89.3069948

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	8450 mg/kg
Antimony	3.3 mg/kg	<8.9 mg/kg
Arsenic	11.3 mg/kg	5.2 mg/kg
Barium	122 mg/kg	134 mg/kg
Beryllium	0.56 mg/kg	0.5 mg/kg
Cadmium	0.5 mg/kg	0.59 mg/kg
Calcium	5525 mg/kg	92500 mg/kg
Chromium	13 mg/kg	15 mg/kg
Cobalt	8.9 mg/kg	7.9 mg/kg
Copper	12 mg/kg	16 mg/kg
Iron	15000 mg/kg	22000 mg/kg
Lead	20.9 mg/kg	10 mg/kg
Magnesium	2700 mg/kg	15800 mg/kg
Manganese	630 mg/kg	681 mg/kg
Mercury	0.5 mg/kg	<0.14 mg/kg
Nickel	13 mg/kg	20 mg/kg
Potassium	1100 mg/kg	1550 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<5.2 mg/kg
Silver	0.5 mg/kg	0.096 mg/kg
Sodium	130 mg/kg	<742 mg/kg
Thallium	0.42 mg/kg	0.92 mg/kg
Vanadium	25 mg/kg	20 mg/kg
Zinc	60.2 mg/kg	59 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.