Sample Name: N3–0.5-1.0

Sample date: April 18, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 12-Jun
Location Description: Triad

Contaminants above Illinois EPA soil background level  :

• Aluminum
• Beryllium
• Chromium
• Copper
• Iron

Latitude: +41.3183282      Longitude: -89.3057635

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	10200 mg/kg
Antimony	3.3 mg/kg	NT mg/kg
Arsenic	11.3 mg/kg	2.9 mg/kg
Barium	122 mg/kg	92 mg/kg
Beryllium	0.56 mg/kg	0.63 mg/kg
Cadmium	0.5 mg/kg	0.21 mg/kg
Calcium	5525 mg/kg	3290 mg/kg
Chromium	13 mg/kg	16 mg/kg
Cobalt	8.9 mg/kg	8.3 mg/kg
Copper	12 mg/kg	16 mg/kg
Iron	15000 mg/kg	19800 mg/kg
Lead	20.9 mg/kg	10 mg/kg
Magnesium	2700 mg/kg	3040 mg/kg
Manganese	630 mg/kg	455 mg/kg
Mercury	0.5 mg/kg	0.047 mg/kg
Nickel	13 mg/kg	21 mg/kg
Potassium	1100 mg/kg	731 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<4 mg/kg
Silver	0.5 mg/kg	<1.1 mg/kg
Sodium	130 mg/kg	<567 mg/kg
Thallium	0.42 mg/kg	<2.8 mg/kg
Vanadium	25 mg/kg	23 mg/kg
Zinc	60.2 mg/kg	50 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.