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Former Manna Pro Site Page 2 <br /> Project No 207 3 <br /> I Appendix A <br /> ITable A1B - Zone Volumes and Ave. TEPH Concentrations - Slice B -33'-40' <br /> Zone B Gross Net Area Volume <br /> (33'-40') Area A„ =(A„*7ft) <br /> (each zone) <br /> 1 2,500 ppm 3,007 s f 3,007 s f 23,049 c f <br /> 2 500 ppm 8,178 s f 5,171 s f 36,197 c f <br /> 3 50 ppm 24,937 sf 16,759 s f 117,313 c f <br /> 4 5 ppm 68,912 s f 43,975 s f 307,825 c f <br /> Table A1C - Zone Volumes and Ave. TEPH Concentrations - Slice C -40'-45' <br /> Zone C Gross Net Area Volume <br /> (40'-45') Area A„ =(A„*5ft) <br /> I (each zone) <br /> 1 2,500 ppm 7,611 s f 7,611 s f 38,055 c f <br /> 2 500 ppm 18,898 s f 11,287 s f 56,435 c f <br /> 3 50 ppm 27,050 sf 8,152 s f 40,760 c f <br /> 4 5 ppm 38,938 s f 11,888 s f 59,440 c f <br /> Table A1D - Zone Volumes and Ave. TEPH Concentrations - Slice C -45'-50' <br /> I Zone D Gross Net Area Volume <br /> (45'-50') Area A„ =(A„*5ft) <br /> (each zone) <br /> 1 500 ppm 1,702 s f 1,702 s f 8,510 c f <br /> 2 50 ppm 7,266 s f 7,278 s f 36,390 c f <br /> 3 5 ppm 13,058 sf 5,792 s f 28,960 c f <br /> I In calculating contaminant mass, zones with estimated average TPH concentrations less than <br /> 5 ppm are not included The following table summarizes the calculations for adsorbed phase <br /> TPH in the saturated zone, <br /> 2937 Veneman Ave,#6240 Geo-Phase Environmental Inc Phone(209) 569-0293 <br /> Modesto,CA 95356 Fax(209)569-0295 <br />