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c � s II �•- _ _ � � 1 1 1 : SB- 8 • I SB - 7 I SB - 6 DEPTH 2 FT 5 FT 8 FT DEPTH 2 FT t i CANOPY i DEPTH 2 FT 5 FT -� C 1 . 3 0 . 054 0 . 16 A 0 . 22 A 4. 7 0 . 04 D1 0. 25 0 . 021 0 . 052 C 0 . 95 YSB - 10 LEGEND . 0 0 0 0 0 0 0 0 0�-0 D1 0 . 46 0 . 017 H 0. 2 <0 . 01 <0 . 03 I D1 0 . 23 DEPTH 2 FT 5 FT I d T 13 Y <0 . 005 T 14 Y 0 . 71 1 . 5 T 12 Y t T 1 . 1 Y 0 . 63 1 r - - - - - - � I I AREA OF INTEREST W D2 0. 0095 J <0 . 005 D2 8. 12 <0 . 005 <0 . 005 D2 0. 064 D2 10 . 008 J 0 . 04 I �- - - - - - - � > I I - FORMER TANK FARM AREA SB- 22 - - - - - - - - - - - �" ` - _ � DEPTH 2 FT 5 FT 8 FT f A <0. 2 <0. 03 0. 18 Y i EXISTING SOIL BORINGS C 0. 32 <0. 042 1 . 2 Y - - DEPTH 2 FT B j5. FT8 FT ( FIRST DETECTION DEPTH IN D1 <0. 2 <0. 031 0 . 36 1 0 DATE PARENTHESES) s SB-2 D1 10 Y 3. 2 28 Y 1995 2012 H <0. 2 <0. 03 0 . 62 T 400Y 4. 8Y 13Y T 2. 8Y 0. 64 0. 83Y W 1 D2 0 . 011 0. 024 0. 034 NO EXCEEDANCES D2 0 . 19 0. 013 0. 027 I ASPHALT i ® ® EXCEEDANCES AT 2 FT. SB -6 PAVING 0 8 EXCEEDANCES AT 5 FT. ( 8 ) PSB 7 P (2I EXCEEDANCES AT 8 FT.( 5) PSB-13 )SB - 9 PB-6 LL , DEPTH 2 FT 5 FT ( 5') . x , ( 10') SB -7 I SB- 19 ® ® EXCEEDANCES AT >8 FT. T 0. 97 Y 2 . 3 Y i (106,)8 8 PSB- 19 j DEPTH 2 FT 5 FT 8 FT A Sg _8 APSB- 14 (8') I D1 <0. 005 0 . 045 0. 0092 PSB-20 PROPOSED SOIL BORING jw PSB- 12 ( 8' ) ( 10') PS $-20A , T <0. 1 <0. 1 0. 47 Y • 00') ` ( PROPOSED BORING DEPTH ) w� PSB-9 ( 100) PSB- 17 B20 ( ) 0 1 ( 10') A .PSB-15 ( 5') A ® 1 ' / SB- 191 - - SB - 23B I PSB- 10 ( 10') B36 B19 ( ) SSB-20 ( 8 ' ) i ( WAREHOUSE CHAIN LINK FENCE I DEPTH 2 FT 5 FT 8 FT B26k ( 10•)&SB-9 - PSB- 11 PSB 18 ( V ) ® ( 81 ) ® ( 8 ) A <0. 005 <0. 03 1 . 7 Y I 6 ' _ -� _ -_ _ _ _ - - SB - 20 J ESTIMATED VALUE ( )_ -__ ( 8') - ( 10')_= - - SB -1_0 _- - - B21 l C <0. 005 0. 15 7 1 j / / -nnB38 � - - -� - - - - - - 1 ( 10 - - - - - -' ( 8 )- 1 ( 8 . 5' ) ` PSB-21 i DEPTH 2 FT 5 FT 8 FT o I B1 y 2 ' PSB-22 \ 67 ( B9 . � � � � ` I ( 8 ) I A 0. 074 <0. 005 <0. 1 � a D1 <0. 05 0. 052 0. 8 I I ® ( 1 ' )( B2 ' ( ) ♦ ( 10') ® ( 10 ') ( � B10 SB _22 ® 1 11 I I D1 0. 063 0. 017 0. 022 Y RELATIVE PERCENTAGE m = T 130 Y 1 . 3 Y 61 Y I ASPHALT B27 I ( 1 ' ) �� 12 B37� ( 8� ) ( 2 5' I j 1 I I ( ) ( B11 ) 1 11 I I T 2 . 8 Y 0. 64 0. 83 Y DIFFERENCE BETWEEN PRIMARY z ~ i PAM NG 1 1 AST jB6 ( 1 ')) B12 SB -211 1' I1 1 • 02 I TYP. � ( 51 ) ( 1 B13 ( 8') 1 �!j - - 1 PSB-421 4 I AND CONFIRMATION COLUMN >40 % I I I PSB-23 ( ) 111 I ( 10') a SB 12 o I 1828 j * (? ) % �� ) B14SB -23B / ( B8 / B�33 -- AST ABOVE- GROUND STORAGE TANK DEPTH 2 FT I A ( 2 . 5' ) I SB - 12 / ( 8') � � 1 11 ( 6 . 5 ') 1 DEPTH 2 FT W I I PSB-24 TFA- 1 , W o C 1 . 4 o 1 I ( 8 ) �: 5' - _ , ' g5 ` - I I C 0. 98 oQ T 130 Y o 1 PWB- 1 gg ) B4 ( 1 ) FORMER PSB-28 ® l � - - 7 i D1 0. 33 ( 13') Q ( 1 ) Q ( 1 ' ) CANTAINMENT � ( 10 ) SB-23 III I I KEY/SCREENING LEVELS (mg/kg) ' SB - 11 PSB-264REA SB 25 ( 8') PSB-29 III I I T 68 Y A ALDRIN 0. 033 I II �(8' ) (5') ( 8' ) �4 ) - - . 111 I SB 18 I I C CHLORDANE 0. 43 o I SB -13 � � / I ( 8') W PWB - 1 ° ° 1 1 1 I ( 8, ) PSB-27 _ SB -24 I I 1 I I D1 DIELDRIN 0 . 035 DEPTH 13 FT 1 F` / / � � � ( 8 ) F` I I I S8 - 18 Yo T 0 . 7 J j I PSB-25 ', P B 30 1 PSB-32 1 ( 10 ) 1 S (8') � I P(10')11 DEPTH 2 FT 5 FT g gamma - BHC 0. 5 W 1 ( 10') I 1 I A , i I I I T 0 . 96 0 . 76 Y H HEPTACHLOR 0. 13 12') B15616 B17 j l A ! T TOXAPHENE 0. 46 -0 ( 1 ' ) III PSB-40 I D21 DBCP 0. 0054 PSB-31 , PSB-37 SB - 16 l (5 )-I 1 SB - 17 > 1 1 I I SB - 14 , (2') ' ( 5') . g PSB-39 I f I g SB - 11 ( \ SB -15 ( ') A I I II ( 8')\ (5') B3111 I 1 DEPTH 2 FT 5 FT BASE MAP REFERENCES: DEPTH 2 FT 5 FT 8 FT I I l �\ � �B29 _ �8 ) _ � g50� _ � ( 2 . 5' ) 1 I D1 0. 24 0 . 0078 o T <O . 1 0 . 19 Y 0 . 92 I -_- • ( 2 . 5 ) - - - a- ( ) - - - - -a - - - ' / 1 1 . "FORMER AST AREA" SURVEY BY MORROW 1 - � _ _ _ Y- PSB-36 . _ _ Y _ _ _ I T <0 . 3 0 . 51 SURVEYING, WEST SACRAMENTO, CALIFORNIA. o a I � \ I (2') FORMER PSB-38r RM (TV.) 1 / 1 DATE: AUGUST 7, 2012. 1 _ PSB-34 ; PSB-35r _ _ _ _ (51) _ 1 (2 ) (2 ) 1 2 AERIIA PRO,PHOTOGRAPH PROVIDED BY GOOGLE d e 1 ASPHALT I o i PAwNc j SB - 13 0 30 ' 60 ' DEPTH 2 FT 5 FT wo T 11 Y 12 Y 1 GRAPHIC SCALE 0 OQ - - - GLEN SPRINGS HOLDINGS , INC . FORMER OCC - LATHROP FACILITY LATHROP , CALIFORNIA of SB - 14 SB - 15 SB - 25 SB - 16 SB - 24 0 U: ari DEPTH 2 FT DEPTH 2 FT DEPTH 2 FT 5 FT 8 FT DEPTH 2 FT 5 FT DEPTH 2 FT 5 FT 8 FT SOIL BORING RESULTS AND m C 0 . 73 T 5 . 1 Y A 0 . 37 <0 . 05 <0 . 05 C 0 . 62 2 . 6 C 0. 85 Y 0 . 13 0 . 021 PROPOSED ADDITIONAL BORINGS - N N W v D1 0 . 25 C 0 . 5 0. 0094 0 . 38 D1 <0. 1 0 . 23 D1 0. 043 J <0 . 1 <0. 005 � JN T 11 Y D10 . 46 0. 0055 0 . 044 H <0. 1 0 . 33 g 1 . 1 Y <0 . 1 <0. 005 _ ,.� FORMER TANK FARM AREA y � T 18 Y <0. 1 2 . 3 Y T 4. 8 Y 14 Y T 3. 7 Y 2 . 2 0 . 25 0 LL 90 'f _ FIGURE r w w m o D2 1 0 . 012 1 0. 0072 J 1 . 4 D2 1 0 . 0079 J 0 . 33 <0. 005 3 06 Xao ARCADISI