Sample Name: SD-E 0-0.5

Sample date: October 8, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-6
Location Description: Supplemental

Contaminants above Illinois EPA soil background level  :

• Arsenic
• Barium
• Cadmium
• Copper
• Lead
• Silver
• Thallium
• Zinc

Latitude: +41.3212061      Longitude: -89.3080251

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	2510 mg/kg
Antimony	3.3 mg/kg	<7.2 mg/kg
Arsenic	11.3 mg/kg	15 mg/kg
Barium	122 mg/kg	189 mg/kg
Beryllium	0.56 mg/kg	0.36 mg/kg
Cadmium	0.5 mg/kg	113 mg/kg
Calcium	5525 mg/kg	61200 mg/kg
Chromium	13 mg/kg	5.7 mg/kg
Cobalt	8.9 mg/kg	4.6 mg/kg
Copper	12 mg/kg	59 mg/kg
Iron	15000 mg/kg	11100 mg/kg
Lead	20.9 mg/kg	291 mg/kg
Magnesium	2700 mg/kg	32600 mg/kg
Manganese	630 mg/kg	323 mg/kg
Mercury	0.5 mg/kg	<0.13 mg/kg
Nickel	13 mg/kg	8.8 mg/kg
Potassium	1100 mg/kg	287 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<4.2 mg/kg
Silver	0.5 mg/kg	2 mg/kg
Sodium	130 mg/kg	262 mg/kg
Thallium	0.42 mg/kg	1.3 mg/kg
Vanadium	25 mg/kg	8.4 mg/kg
Zinc	60.2 mg/kg	3820 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.