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---------- ---- ------ <br /> Site Characterization and Soil Aemediation Plan: 7500 West Eleventh Street, Traqv, (-A. Page i <br /> Table of Contents <br /> PROFESSIONAL CERTIFICATION AND LIMITATIONS ................... . .... I <br /> INTRODUCTION . ..................................... . ............ .. ................2 <br /> SiteLocation.... ................... .. ................. ....... ... .......... ..................... 2 <br /> SiteCode ......... ........ . ..... . ... ...... .. ............ ..... .............. ........ 2 <br /> Background.... ... ........ .............. ....... .... ........... ... 2 <br /> GEOLOGY AND HYDROGEOLOGY .............I... .......... .............. .... 3 <br /> REMOVAL OF UNDERGROUND TANKS ......... ....... . . ........ ............ <br /> 3 <br /> HYDROCARBONS IN SOIL AND GROUNDWATER............ .................... 5 <br /> TankPit No. I .................................................. ............... 5 <br /> Dispenser Pit........................... ......... ­............ . .......... .......... . ....... . .6 <br /> TankPit No- 2.................................. ..................... ....... .......... 7 <br /> Pipe Trenches............................ ...... ..... 7 <br /> ANALYSIS OF EXCAVATED AND STOCKPILED SOIL..................... 8 <br /> Temporary Stockpile No. I ............ ............ ......... ....... ......... 8 <br /> StockpileNo- 2... ...... ...... .__...... .................. _......... ...... 8 <br /> PROPOSED SITE CHARACTERIZATION PROGRAM.. . ........ . .............. 9 <br /> Topographical Survey ., ................ ... ........... ....... 9 <br /> Detection of Underground Utilities ... ... . ..... .......... ......... .. .... ..... ..... 10 <br /> Search for Existing Wells.. ........... ..........:........... <br /> 1 . ........... .. ...... 10 <br /> Evaluation of Lateral and Vertical Extent of Zone Affected by Fuel <br /> Hydrocarbons............................................... ...... . ........... ...... 11 <br /> Selecting Locations for Groundwater-quality Monitoring Wells .......... <br /> ZI) _ 13 <br /> Survey of Well-head Locations and Elevations........... ......... ..... ......... ... 16 <br /> GROUNDWATER-QUALITY MONITORING... .......... ..... 16 <br /> ........... ..... <br /> Determination of Groundwater Elevations......_._ --- ....... .....__..... ....... 16 <br /> Sampling Procedure.................... ....... ................. ...................... . ­ 16 <br /> Sample Analysis., ...... ............ .. ......... ........ ....... 17 <br /> Disposal of Purge Water.................. ... ... . ............ ........... .. ....... .. ....... 17 <br /> sic <br />