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SECTION A-A
<br /> B I f
<br /> B'
<br /> NORTHWEST - SOUTHEAST
<br /> VW 2 vW-3 VW.4 MW-9 B-32
<br /> VW 10 MW-8 9 38 834 1
<br /> // / ��,♦ �\♦\♦ ,.` ......r�� I &42
<br /> / [55a55] /[300!1 8] i ijI2300156]� % i♦��\♦.♦\�♦�♦������ ,�♦�♦♦♦�♦�ti♦�
<br /> A [<1 ac0 005J' /%' - / /�7��i♦♦.♦\♦♦.♦♦♦♦.� ��\♦��i�r / 19 VW 18 MW 12
<br /> p ?// / //[2501044] I // %I r [141052] L`,_`.�.T♦♦�♦♦.♦... ;\♦.♦`�� 1 / �1//ice / /I
<br /> P [DRY]r / /�/////1///�/ 1 //�� rr// /r/ ... -T--- i /� %
<br /> R ,,., , •, s 9ro ao
<br /> ° %/ / /// [<20%e005] �/ %%/ �� >> _ r r�� _:♦................:, ♦`;fit%'j��i% [<1aen1) E10/,"i2P
<br /> r :C/1/iii ., /_ /iiiiT- / /' / /// T- r- [< Oas] %��/ / < 22!0 12 , - f/5' / / / /� i/ %r, <ao fly" " i r,iI 1 -/ �/ / (<1 a<o oosj / € 1 a<o oos]A SAN�-D 1 [ [ BOJ3 3] /i /�'i I� 391064i//// // %/%ii�iir r/_ _ � � �/J./r %// / TD=41 [daO096] t/ , [D Y �I19a21] %/�/// r ~T - _" �/�//�
<br /> T
<br /> // / / / / / // �[<1 a<0 005]-+ �/, r %��// -_�// � a<Da — /r ,TD-80 /. D-80 G / +� / <10!< //<1 a<0 /
<br /> 1�� � /iii /f/ii -- _ _ -� /, [ 0 005] � [ oos]/.
<br /> TD=81 e1 O/O 054, 280!4 5];
<br /> A 8022104 T //// / / / / r // R LEGEND
<br /> '/1 /// j/ � /i[2 7710 77]' r- [D /`
<br /> L SA D 2 �--- - />/ / /.
<br /> 80 f � ///r% r�f~ �-- /r/r/�f/, [<1 O10 1 t]--
<br /> r / /, ^� y ML USCS SYMBOL
<br /> [e5 a<p 025J [DRY] - _ `// f�j����j [7 wp 2t] % [1610 2M 13] I APPROXIMATE CONTACT
<br /> P __
<br /> H ['2
<br /> 6000 ?rj//1 ♦[<5 a<0 025] �///////.//i/// j j,/--€<5 a<0 025] ' �/�/ //�7 BETWEEN SOILTYPES
<br /> 2 /�/ -- • // r s1 O!<0 005]_ f
<br /> �TDag4/ / [<1 ac0 005Jr / ! STATIC WATER LEVET
<br /> 970 �r/r, _� rr /r irr. _ _`€<i(WO 00661 1
<br /> 78000 r �// /��/,% r/////! //%/i/ _ ''-=�/rir 28910464 / r%i
<br /> / �f / // _ I 1 / / //r % / SA D2
<br /> DEPTH TO GROUNDWATER IN
<br /> 8012104 9300 / /r r i/// r /// �'// % _ r� TD-80 �_
<br /> / <5 a<0 0 r /'<5 D!O 05 f/�/�' [`5 Oro 023]"` �' /i, _ _ __ / [<i a0 0 MONITORING WELLS ON 6/2=
<br /> r c250 �i [ �l r r`I 2] ///i // r f /� /'' r /" ' -� :,i�, R /r rr� �]
<br /> �� 1f r r /ice%/�j %�%��%%/ r/�r/�/��r/ '// � �
<br /> — SOIL SAMPLE LOCATION
<br /> /
<br /> I4 440122 31; j r/ ^ -
<br /> 120 / ,/'/T/iii/% 1 a<o
<br /> �''/' �//1/ �//i /1, r /I �♦. ♦ ♦ / /�Y/,%/r///1�i , /'j// 1 � i �II 10000 Op5] GASOLINE RANGE
<br /> [<
<br /> s /i//%////� /i///� n '- ♦.♦♦\�<5 < ♦..♦.♦.�_.w, /��r [260228] /V
<br /> 120
<br /> / [ a O 025]- ORGANICSIBENZENE
<br /> s (<5 a<0 025] , f/ i ~ „ ♦`` . `♦ ),/ // r' / /' '�' /i �//� /i r i / ri / / / CONCENTRATIONS IN MILLIGRAMS
<br /> L r ri/rrj r, i _.Y � �/, .♦�♦ %/ ��/ I/ /// ''� /' / �' l�r % ir[cii///r�..i 0/05♦//i iT�D=r1i/06,/ 8122/04 PER KILOGRAM(rtgAp)° [c5 ac0 D25]- 1 ac0[<5 01<0 0251 ` --
<br /> [4830116] SCREENED INTERVAL
<br /> ///,/ =135 [c5 a<0 025]; /21/01
<br /> %/,I-50(<0025]—
<br /> /,,,'y=_ / //%/1%����� � t// i _ _ _ __ [-11 a o�5]
<br /> q �' r ' ra �`///f % - // r'r TD-14V [1 881<01] / / Jr. / ___ _ r, /, TD=B3' TOTAL DEPTH IN FEET BELOW
<br /> / / '� `f��. r// ~--__w- <1aaOtldSJ SURFACE GRADE
<br /> A 180 %/// '///�1 �r���"
<br /> e f / / //� / % �� /��,/TD=135 ? LIN♦` (CL) SILTY CLAY CLAY
<br /> /jJ i� i r / 7
<br /> R / r�/ 7 (SM SP,SW) SILTY SAPID SAND
<br /> t28 qp (ML) SILT CLAYEY SILT SANDY SILT
<br /> TPH AS GASOLINE CONCENTRATION
<br /> 36 000 IN MICROGRAMS PER LITER
<br /> 200 8 2500 BENZENE CONCENTRATION INµg&
<br /> 76=202' 7 16=04 MTBE CONCENTRATION IN AgfL
<br /> DATE WELL SAMPLED
<br /> V
<br /> 0
<br /> E
<br /> R
<br /> T
<br /> f
<br /> s FIGURE 4
<br /> C
<br /> � GEOLOGIC CROSS SECTION B-B'
<br /> E 40 FT
<br /> ARCO SERVICE STATION NO 6100
<br /> 40 FT25775 SOUTH PATTERSON PASS
<br /> � TRACY, CA
<br /> PROJECT 0 21 DRAWN
<br /> U 8,100 M L 218102 (J
<br /> HORZ SCALE FILE NO I PREPARED BY ENVIRONMENTAL,INC
<br /> 8100 Crass Secbm S B
<br /> REVISIO NO REVIEWED BY ddhl
<br />
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