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EXISTING GRADE <br /> 4" AS PHALT <br /> _M <br /> 1 5, CLASS 1[ AGGREGATE <br /> BASEROCK <br /> ' 1 - 2" PVC AUXILIARY VAPOR CONDUIT <br /> 1 - 2" PVC STORM DRAIN DISCHARGE <br /> 4' 3' a s a a s Jy��a a�a a s 1 - 4" PVC FUTURE GROUNDWATER USE <br /> ' a a q�/a did p a 4cJa a a 1 - 1" PVC FUTURE GROUNDWATER USE (ELECTRICAL) <br /> a 4 a a 4 b a p a p p a a d a <br /> aaapaada as aid apace 2" VAPOR EXTRACTION LATERALS <br /> a a a a a a o a b a a a v a a o o a <br /> a a a a a a0apadddaaaaa (SCREEN SECTIONS) <br /> ' e a e CRUSHED ROCK. . . . <br /> a o a e e p a a a a a o a p e a a p <br /> a a a a v e a p Q a d a b a o a a Q <br /> p a a o a a a v a a p e p p a o o a <br /> a a a a a Q a a d a a a o a a b a a <br /> as s o d a p p a ae a <br /> 2 PVC VAPOR CONDUIT <br /> a a a a a a p o o l o p I <br /> a v e d a a o 96000 p a a o <br /> c o a a o a I <br /> o a a p v d o a o a o a o d i <br /> i <br /> a a a a a p p a b a a a a d a d Q 4 <br /> 4 a a a a a a a p a a d b a p 4 a a I pf <br /> 81 -10' as a as aaa pa pp ab aaaQ I LJ <br /> aaaaaaaaaoopaaaaa <br /> a a 11, 10' , <br /> M <br /> a a a a a a a a a a a a a c a a I Qapevddaaaaaoad0p Qc <br /> c. <br /> a a a a d a a o d o d a a o o a a e <br /> APPROXIMATE ' <br /> GROUNDWATER ELEVATION SUMP AREA <br /> ' - APP OXIMATE 45° BEND <br /> CLASS I1 <br /> Permeable material 4" EXTRACTION WELL <br /> 1 <br /> 70' <br /> 1 <br /> I <br /> EXTRACTION TRENCH - SIDE VIEW(NORTH) <br /> ' SCALE 1 INCH = 10 FEET <br /> 0 4" PVC DRAIN CONDUIT <br /> 1 <br /> VARIABLE DEPTH OF TRENCH <br /> t (SLOPED TO SUMP AREA) <br /> 2' l <br /> 1 � <br /> EXTRACTION TRENCH - SIDE VIEW WES s Extraction Trench Construction Details PLATE <br /> T) Harding Lawson Associates <br /> Engineering and 7-Eleven Convenience Store <br /> SCALE 1 INCH = 1 FOOT ;, p Environmental Services 455 Grant Line Road <br /> C s Tracy, California 5 <br /> DRAWN JOB NUMBER APPROVED DATE REVISED DATE <br /> ' S Patel 17060,026 03 5;v _ - 02/10/922 <br />