Laserfiche WebLink
GEOMATRIX <br /> TABLE OF CONTENTS <br /> Page <br /> EXECUTIVESUMMARY...........................................................................................................1 <br /> 1.0 INTRODUCTION.............................................................................................................1 <br /> 2.0 BACKGROUND............................................................................... ............................1 <br /> 2.1 SITE SETTING..........................................................................................................1 <br /> 2.2 SITE HISTORY.........................................................................................................2 <br /> 2.3 PREVIOUS ASSESSMENTS........................................................................................2 <br /> 3.0 CURRENT SITE INVESTIGATION...............................................................................3 <br /> 3.1 SOIL BORING PROGRAM.........................................................................................4 <br /> 3.2 GROUNDWATER MONITORING WELL INSTALLATION .............................................4 <br /> 3.3 SOIL BORING AND MONITORING WELL SURVEYING..............................................5 <br /> 3.4 GROUNDWATER LEVEL MEASUREMENTS...............................................................5 <br /> 3.5 GROUNDWA'T'ER SAMPLING....................................................................................5 <br /> 3.6 ANALYTICAL METHODS.........................................................................................6 <br /> 4.0 RESULTS..........................................................................................................................7 <br /> 4.1 HYDROGEOLOGY....................................................................................................7 <br /> 4.2 SOIL RESULTS................................................................................................... <br /> 4.3 GROUNDWATER RESULTS.......................................................................................8 <br /> 4.4 SEPARATE-PHASE PETROLEUM.............................................................. ................9 <br /> 4.5 SUMMARY OF RESULTS..........................................................................................9 <br /> 5.0 SCREENING-LEVEL HEALTH RISK ASSESSMENT...............................................10 <br /> 5.1 SCREENING-LEVEL HEALTH RISK ASSESSMENT FOR SOIL...................................10 <br /> 5.2 RISK EVALUATION OF SEPARATE-PHASE PETROLEUM.........................................12 <br /> 6.0 RECOMMENDATION...................................................................................................13 <br /> 7.0 REFERENCES................................................................................................................14 <br /> TABLES <br /> Table 1 Historical Analytical Results <br /> Table 2 Well Surveying and Groundwater Elevation Data <br /> Table 3 Sail Analytical Results—Total Petroleum Hydrocarbons and Related <br /> Constituents <br /> Table 4 Sail Analytical Results—Polynuclear Aromatic Hydrocarbons <br /> Table 5 Groundwater Analytical Results <br /> Table 6 Comparison of Detected Concentrations of Petroleum Constituents in Soil and <br /> Sample Quantitation Limits to PRGs <br /> Table 7 Number of Sample Quantitation Limits Above PRGs <br /> %ksMfttdatalDoc_Sa£e150003150111S1 HRA Rpt.doc Z <br />