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March 2006 March 2008 March 2009 <br /> EWP-OS �An, EWP-05\ F EWP-05 <br /> EWP-04 \ •'H EWP-04 \ EWP-04 �\ <br /> EWP-03 EWP-03 \ EWP-03 \ \ <br /> EWP-02 EWP-02 \ EWP-02 \..�� EWP-09 <br /> \ EWP-07\ EWP-07 <br /> PZ-08+ EWP-01� V- PZ-06+ EWP-01PZ-08+ EWP-01+ <br /> MW-13A P-0 A� MW-13A P-0 V� MW-151 P-0 <br /> ND<50 P_0 O \\, ND<47 P-0� • \\- ND<47 \\ <br /> r�Mw-oaA �' FORMER EXTRACTION r.ALLERY� r�Mw-03A � r�Mw-o3A � • <br /> r I NS PUMP HOUSE I FORMER EXTRACTION GALLERY FORMER EXTRACTION GALLERY <br /> J ND<50 +P J NS PUMP HOUSE , ND<47A�P NS PUMP HOUSE X47 �P <br /> L A/C PAVED PARKING AREA A/C PAVED PARKING AREA A/C PAVED PARKING AREA <br /> ENP-11 <br /> 100 STATION HOUSE <br /> STATION HOUSE STATION HOUSE <br /> 70 <br /> 501, <br /> -- <br /> .-_-------- _1� .--_--- - <br /> ------ - - <br /> ---------- - ----r � _ -_ �.t--{---5-- -- � <br /> '� FP <br /> PZ A/C AVER ROADD� MW-0 ,�.-.A P 0 PZ 5 PZ-� A/C PAVID R _0 �� =--�-- PZ PZ-05 PZ 04 A/C PAVED ROAD <br /> _ Pz-oa d \ <br /> ND<50 - -8� - - -MW-14A \ <47 MW 10A� ...0` _OBA-- M 350 240 <br /> ND<48 MW <br /> 11�� - -- MW-14A <br /> w 10 ---Tt P2 09 PZ-03 1 - PZ-03 MW-22A -�4 PZ - P-03 MWDO <br /> z IGW-05 -- 930 �MW- IOW-05 _ -02 610 170 ,_ - - -02 510 300 <br /> FP <br /> =1 14 <br /> o *rW-10 MW 0 I � I GINE y�'�SE -02 yIGW-10 3 I 35.11A N -_ -/ yIGW-10 IW-0 380 I - ENGIN SE <br /> 'm <br /> IOW-0 $00 MW-12A i - 41cw- _1� 14Gw�-o _72A - <br /> a IGW-Ot �• ND<50 IGW-01� PZ-02 ND<47 N^iA'-OltAIN PZ-02 ND<48 <br /> 4�yjc'�'/�• -02A \ MW-084+ -0102 / 09 5W� \'` 8.90D� -01 / MW330 <br /> 2A Z-01 / <br /> / \1 Z <br /> O9 <br /> 530 250 / / z TMER <br /> D i � <br /> o ' / / E <br /> m W<: / Mw<47 MW<48 <br /> U <br /> Q <br /> UJ March 2010 March 2011 <br /> EWP_c R e�F EWP-08 e <br /> EWP-OS ` \• FiyT EWP-OS �• LEGEND <br /> o EWP-04 N EWP-04 <br /> EWP-03 EWP-03 Ground Water Monitoring Well (A ZONE) <br /> EWP-02 EWP-02 <br /> y Piezometer Well (A ZONE) <br /> w <br /> PZ-06-00 y r EWP-01� - PZ-o5yr EWP-01 �. <br /> MTI-13A P-o O \� LV-13A P-0 ® \ Temporary Well (A ZONE) <br /> a r�Mw-oma Mom¢ P °z�- � r�� To�1�� -02 � � Fp Free-Phase Product <br /> F FORMER EXTRACTION GALLERY FORMER EXTRACTION GALLERY <br /> PUMP HOUSE I IIS PUMP HOUSE I �IpsLO <br /> A/C PAVED PARKING AREA P J A/C PAVED PARKING AREA 4'p 210 TEPH-d Concentration in µg/L <br /> TATION HOUSE ON HOUSE NS Not Sampled <br /> w 11 A� ND TEPH Not Detected Above Laboratory Reporting Limit of 50 Ag/L <br /> SCA TEPH-d Total Extractable Petroleum Hydrocarbons Quantified in the Diesel Range <br /> _ _- _ _ _ 100 TEPH Contour Interval (µ-g/L); Dashed Where Inferred <br /> a —- --_---_ -- - -05 A/C PAVED R --=__--- - - -- -05 <br /> l PZ-08 PZ-04 Z-08 PZ-04 UPRR Property Boundary <br /> 1 M M <br /> NDc64 W-t0A <br /> 2 nn - - /•/� W_ �� �/� Existing Fence <br /> E= <br /> -FL-1-0- _ -Pz-TISD <br /> PZ-09 PZ-03 � W-M P Pz-03 T_�-T--r Railroad Tracks <br /> IGW-05 J 1 240 IGW-05 _ p <br /> _9 _ MTn-2eA ------- Limits of Impoundment Excavation <br /> *GW-10 11A ENGIN H E x_10 �_11J IENGI <br /> � <br /> o Y` '1 ------- W.S.I.D. Irrigation Canal (Buried) <br /> o cw-o _ 12A �- IGW- _` 124 �— o Infiltration Gallery <br /> 0 rn Icw-01�• MW-O8A PZ-02 �1 IGW-01 = -m PZ-02 �1 1.110 FI Pz-01 / y aW PZ <br /> / Bioremediation Treatment Beds <br /> w�/ FOR ER �• ORMERFP _- Concrete/Asphalt Pad <br /> c�z TP'A ND �� / (2 TP POND <br /> m \\ EXCAViON j• � \\ EX C TION Building <br /> ij• p <br /> i' Road or Paved Area Building <br /> NOTE: March 2007 samples were not analyzed for TEPH due to sample error. <br /> U <br /> UNION PACIFIC RAILROAD COMPANY <br /> FORMER MAINTENANCE FACILITY <br /> TRACY,CALIFORNIA <br /> 2010/2011 ANNUAL MONITORING REPORT <br /> A-ZONE TEPH CONCENTRATION <br /> CONTOURS BETWEEN 2006 AND 2011 <br /> 0 200 <br /> U N — <br /> D <br /> FIGURE <br /> FEET ARCADIS <br /> I <br /> 9 <br />