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o�ow�a..�Plo. Mx DMYD <br /> DO . N N•mJ„rrylw,iN ND NMYI 0061�y6 <br /> M61 I rMd 6m N6.6T 061 MTBE e1 Ip6 NNbopOnwtl6tn�• el <br /> Hid/(� or wyL umu of mu pm) <br /> Nidal P) OD7 ry6 DPM N Nbolo•nM ND <br /> MIKE 0-0B y66 N- 107 <br /> NLBE e.2 Mi6 <br /> Mu �� M170 Mtt DPH M1/D tB] iB1T <br /> NMkw(T) o...µ Nit•61 PI o e71.BA <br /> NdY P) 1 0 W •& NitlW ID) 0.160/96 NiYI PI 6D107� NrY11 P) 0.161 n•6 NklW(D) 0.175 npl MHW(DI oD]t/n•6 Nm(o) 0.0166 ryt <br /> M BE t ypi <br /> C8A42 CSA-10 <br /> �mwy2 PAA-00PMYl DP17D WTA-07 WTA-06• DP! <br /> Mil NY•11 P) o• <br /> Deu L iN • • • <br /> TRENCH DPM PSA-27 PAAx.'.... PAA-U• Pw-0] y •BMR • •- DP]R oro Mr ? CAAx <br /> • •• M/0. A� SUMP SUMP r WTANN C" •C8A-07 Mu <br /> • DM] PAA-12 • •• PSA-a • ♦ DH ®DMO WTAx STORAGE DIM ATO E L <br /> Nm P) 0.76 oi06 --� Pi11.17 DP-16 �1 r WIT - • BAY Mw-t <br /> PLATING SHOP A MA-11 M1] • • [*WTA42 ANSUMP•��• PABi1 <br /> • • -I J WASTE TREATMENT •INTA-W WTA� CAA-1t <br /> PM-00• PAA-M DMIR • DNi <br /> pry0R NNW..d Mlryl•rOs 37.6 r96 �-------- - FORMER WATER <br /> • •MTBE 0.66 MD'1 PSA-17 MTBE a7 V06 , MT9E to 1 I TANKS i66 ••--- C6A-06 <br /> PSA-02 OPO • • _ �� I DI10 (REMOVED) DP77 <br /> PAA a PSA-if <br /> P•AA<7 M�6M P) Oa w6 PAAd3 PSA40 •- CIAO <br /> OvaM Nm 101 OT11 nB6 DPW I I ♦Mt ` O <br /> MTBE l3 V06 • �• PAA-u N-Ni4o0'm6ryYms Zi n06 L---J �� O <br /> P. • <br /> M37 --♦ • NmiP) Bz6o op6 • PLATING MTBE uW>ti 07Ni• /i86 i SUMP <br /> DYPII66N.aMnlMae) r •.__ SHOP■ SUMP <br /> Nv.I P) w6tn•t SEN-ED STORM DRNN _ FORMER <br /> MIKE t1 P8546 •P&BJW (TO WASTE WATER BULK STORAGE <br /> M W.3 PAAx _/L_ TREATMENT SYSTEM)- DPM TANI{S <br /> M• - _- FAB (SECONDARY COMNNMENT <br /> DIM NYlW P) o.701npt STRUCTURES REMOVED) <br /> NdM(TJ 0.1701/L P68-01••DP14 <br /> Nm P) O.t/W,L • • DMB CRAM <br /> MTBE al 0111x OTHM MTBE 13 OWL GSA <br /> -42 <br /> SOLDER ♦MM <br /> MASK OTH-01 oP'6 SOLDER I <br /> ETCH eNSP) 6AM66.0L MASK MB-0f♦ <br /> LN30RATORY _ OTHx <br /> • <br /> EXPLANATION GENERAL NOTES: <br /> -`?_ PROPOSED GROUNDWATER MONITORING 1.AUGUST 2006 GROUNDWATER SAMPLES WERE ANALYZED FOR VOCs USING NICKEL(T) TOTAL NICKEL <br /> WELL LOCATION EPA METHOD 82ND(EXTENDED LIST).ONLY MTBE DETECTED AT OR ABOVE NICKEL(D) DISSOLVED NICKEL =�4_ <br /> AUGUST 2006 GROUNDWATER SAMPLE ITS REPORTING LIMITS IS SHOWN. ND NOT DETECTED <br /> LOCATION 2.SELECT AUGUST 2008 GROUNDWATER SAMPLES WERE ANALYZED FOR <br /> -► JANUARY 2006 SLANT BORING, TOTAL NICKEL AND DISSOLVED NICKEL(LABORATORY FILTERED)USING DISSOLVED NICKEL EXCEEDING CALIFORNIA MCL(0.1 mDIL) 0 20 <br /> DIRECTION INDICATED EPA METHOD 6020.JANUARY 2005 GROUNDWATER SAMPLES WERE <br /> • JANUARY 2005 DIRECT PUSH 8MNG ANALYZED FOR DISSOLVED NICKEL(FIELD FILTERED),BUT MAY HAVE HAD N-NITROSODIMETHYLAMINE(NOMA)EXCEEDING SCALE IN FEET <br /> FILTER BREAKTHROUGH. CALIFORNIA NOTIFICATION LEVEL(10 rt86) <br /> • DECEMBER 2001 SAMPLE LOCATIONS <br /> 3.SELECT AUGUST 2008 GROUNDWATER SAMPLES WERE ANALYZED FOR METHYL TERT-BUTYL ETHER(MTBE)EXCEEDING <br /> 0 STANDPIPE NOMA USING EPA METHOD 807/1625 METHOD.JANUARY 2005 DETECTION CALIFORNIA PRIMARY MCL(13 Bp1L) <br /> ---"-T LOCATIONS OF EXCAVATION DURING OF NOMA AT DPI 7D WAS USING EPA METHOD 82700. <br /> i- 1888 AMMONIA HYDROXIDE ETCH FIGURE 3 <br /> SPILL REMEDIATION <br /> HISTORICAL GROUNDWATER CONCENTRATIONS AND <br /> E A R T R@ T N C M PROPOSED GROUNDWATER MONITORING WELL LOCATIONS <br /> 1950 W. FREMONT AVENUE <br /> STOCKTON. CALIFORNIA <br /> DECEMBER 2007 102790 <br />