Sample Name: SP9-SD1

Sample date: October 9, 2007
Operable Unit: 5
Sample Type: soil
Sample Depth: 0-6
Location Description: Shoreline Seep Sediment

Contaminants above Illinois EPA soil background level  :

• Barium
• Cadmium
• Copper
• Lead
• Selenium
• Silver
• Zinc

Latitude: +41.3227421      Longitude: -89.3013741

Metal Contaminants:

Contaminant	Background Level	Amount Detected
Aluminum	9200 mg/kg	1010 mg/kg
Antimony	3.3 mg/kg	<20 mg/kg
Arsenic	11.3 mg/kg	4.5 mg/kg
Barium	122 mg/kg	236 mg/kg
Beryllium	0.56 mg/kg	0.16 mg/kg
Cadmium	0.5 mg/kg	27 mg/kg
Calcium	5525 mg/kg	18800 mg/kg
Chromium	13 mg/kg	4.6 mg/kg
Cobalt	8.9 mg/kg	0.39 mg/kg
Copper	12 mg/kg	185 mg/kg
Iron	15000 mg/kg	5720 mg/kg
Lead	20.9 mg/kg	332 mg/kg
Magnesium	2700 mg/kg	5280 mg/kg
Manganese	630 mg/kg	38 mg/kg
Mercury	0.5 mg/kg	<0.34 mg/kg
Nickel	13 mg/kg	5.8 mg/kg
Potassium	1100 mg/kg	231 mg/kg
Phosphorus	(No background)	NT mg/kg
Selenium	0.37 mg/kg	2.8 mg/kg
Silver	0.5 mg/kg	2.1 mg/kg
Sodium	130 mg/kg	<1670 mg/kg
Thallium	0.42 mg/kg	<8.4 mg/kg
Vanadium	25 mg/kg	6.2 mg/kg
Zinc	60.2 mg/kg	1740 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.