Sample Name: N.5-1-14-15.9

Sample date: April 16, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 14-15.9 feet
Location Description: Chemistry Core

Contaminants above Illinois EPA soil background level  :

• Aluminum
• Beryllium
• Cadmium
• Chromium
• Copper
• Iron
• Selenium
• Thallium
• Zinc

Latitude: +41.3217469      Longitude: -89.3047432

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	10300 mg/kg
Antimony	3.3 mg/kg	<9.4 mg/kg
Arsenic	11.3 mg/kg	4.2 mg/kg
Barium	122 mg/kg	113 mg/kg
Beryllium	0.56 mg/kg	0.66 mg/kg
Cadmium	0.5 mg/kg	0.6 mg/kg
Calcium	5525 mg/kg	56500 mg/kg
Chromium	13 mg/kg	18 mg/kg
Cobalt	8.9 mg/kg	8.7 mg/kg
Copper	12 mg/kg	20 mg/kg
Iron	15000 mg/kg	23600 mg/kg
Lead	20.9 mg/kg	13 mg/kg
Magnesium	2700 mg/kg	17300 mg/kg
Manganese	630 mg/kg	458 mg/kg
Mercury	0.5 mg/kg	<0.17 mg/kg
Nickel	13 mg/kg	24 mg/kg
Potassium	1100 mg/kg	1440 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	0.54 mg/kg
Silver	0.5 mg/kg	<1.6 mg/kg
Sodium	130 mg/kg	<782 mg/kg
Thallium	0.42 mg/kg	0.66 mg/kg
Vanadium	25 mg/kg	24 mg/kg
Zinc	60.2 mg/kg	69 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.