Sample Name: SP5-SD1

Sample date: October 9, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0 - 3 in
Location Description: DePue Lake Shoreline Seep Sediment

Contaminants above Illinois EPA soil background level  :

• Barium
• Cadmium
• Copper
• Lead
• Thallium
• Zinc

Latitude: +41.3217019      Longitude: -89.3061367

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	2980 mg/kg
Antimony	3.3 mg/kg	<11 mg/kg
Arsenic	11.3 mg/kg	4.5 mg/kg
Barium	122 mg/kg	123 mg/kg
Beryllium	0.56 mg/kg	0.37 mg/kg
Cadmium	0.5 mg/kg	8.4 mg/kg
Calcium	5525 mg/kg	24200 mg/kg
Chromium	13 mg/kg	5.5 mg/kg
Cobalt	8.9 mg/kg	2.3 mg/kg
Copper	12 mg/kg	21 mg/kg
Iron	15000 mg/kg	8870 mg/kg
Lead	20.9 mg/kg	130 mg/kg
Magnesium	2700 mg/kg	7940 mg/kg
Manganese	630 mg/kg	297 mg/kg
Mercury	0.5 mg/kg	<0.19 mg/kg
Nickel	13 mg/kg	6.4 mg/kg
Potassium	1100 mg/kg	431 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	<6.6 mg/kg
Silver	0.5 mg/kg	0.46 mg/kg
Sodium	130 mg/kg	<942 mg/kg
Thallium	0.42 mg/kg	0.75 mg/kg
Vanadium	25 mg/kg	7.8 mg/kg
Zinc	60.2 mg/kg	1450 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.