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SB-47 SOIL GW j s6-26 7/21/2010 5 ft 1 34.5 ft SB-46 SOIL 255-180-15 TPHc ND ND - TPHd 100 7/21/2010 5 ft 38 ft 44.5 ft GW Benzo(a)pyrene ND ND 0.021 TPHc ND ND ND --- Dibenz a,h anthracene ND ND 0.0068 - TPHd --- 3,100 --------,---------------------------------------------- ----------------------- Na thalene ND 0.00084 0.13 255-260-17 Benzo(a)pyrene ND ND ND 0.0036 WFSMW-2 WFSMW-7 WFSMW-3 All other analytes ND ND ND/NE ' 255-260-16 Na thalene ND 0.0007 ND ND All other analytes ND ND/NE ND ND/NE �WFSMW-6R WFSEX-1 255-260-07 I ti I 2 Former 10,000-Gallon Diesel Tanks 1 Former 5,000-Gallon Diesel Tank !y v \ ,V E R N A L I S 255-180-05 0C C? o A if//& wFssw-1 �'i- O F F S I T E Irn 0 ® 255-180-08 ;;;; 2 N - Mw-5• SB-42 former gas �\ `- SB-35----Irrigation Ditch--i-------------------------- 255-1 --- --- LO SBA 255-180-04 m u4 �`�\ •,\\\ n rT N Crop Production WFSM • station A i WFSMW-4 �� services \ �SB-13 SB-.14 GM) \\\ 1 � \ 255-260-04 ------ • house -------------- SB-46_ __ _ _ -47 • GMX-6 former pump island SB-18 SB-36 o --- ---------------- HIGHWNAY 33 SB-17 HIGHWf1Y 33 SB-39 =11 SSB-28 _ SB-23 SB-22 • GMX-12 • GMX O SB-43 O SB=41 _ O SB-40 p OSB=38 • • \ - - - - - • • Akr e a 3 A`r�e a�2 A,re a 1 • - - - - , 6M -8 GMX-2 HB-5 • 255-180-14 SB-32 - • _ • • SB-26 B-4�••. • S-8 B i• •� `•T�``•�j�•♦ MW-3 SB-20 - -• S 1- • SB-29 =_ SB-37 SB-1 y- .•�•S=5 1 L 4 SB-30 =SB-17 WN♦----- AHERN � - VERNALIS • <SB-31 MW-2 r OQ �� GMX-4• \SB-24u S�24�GMz=X35-10 �f B-5S • 4 \\ ° �� „/\1 \• S_1 g ;�RB-2 SB-34, V E R N A L I S + --------------------------------------------------- -a_ U . SB-25 S-3 S CAN P U M P ------------ Insulair building SB-27 ______________________—________—___________�-�- • SB-33 S-7 • S-11 W E L T Y \s6-4a `• bunkhouse S T A T I O N I S • • O A D w-1 mw' P. B=30 GMX-9 255-260-0325180o0GMX-5 o ;% pump house m UnOdergrollon und Former Hunter • bunkhouse i 100,000-Gallon Water Aboveground Storage Tank Storage Tank Container Corporat' $B-45 W ---- ------ bunkhouse SB-45 SOIL SB-44 SOIL • GMX-2 • S-8GW 7/22/2010 5 ft 38 ft GW 7/20/2010 5 ft 36 ft \\\ TPHc ND ND --- HB=S TPHc ND ND --- RB-4 RB-1 TPHd --- --- ND \ TPHd --- --- ND > - - �� B-2 CPT=1 • SB-2 J • • pti Benzo(a)pyrene ND ND 0.0094 • B-3 Benzo(a)pyrene ND ND 0.0032 -5 ��4All other analytesother analytes I ND ND I ND/NE 255-180-02 B-1 HB-4• ' /��/� • '.bunkhouse RB-5 113 ti i B-4 -09' • • �� c GMX-1B MW-1 Trench' • ��111. it •'.� � O *.RB-6 RB-3 •'•• • 0 25 50 � �•.� i 12.5 215 I I I U O Feet Feet a Q 0 70 140 Map is a relative representation of current and historical data and should be verified for exact legal or underground work. Groundwater flow direction inferred from well-monitoring data.f t to d textent SOIL AN GROUNDWATER > • Soil Boring Location ® Water-Supply Well �_� Historical Old Valley Pipeline t Railroad EsLateral extent of groundwater affected b Feet ,,,,; former burn pit g y ANALYTICAL RESULTS MAP w __ hydrocarbons,where petroleum constituents z Soil Boring Location Monitoring Well Historical Tidewater Associated �"""'fi Former underground """ tmentArea Q • n) (Crop Production Services) Oil Company Pi : Water TreaC exceed WQOs and/or ESLs.Outline dashed (previous investi atioeline a tank � amms: where inferred,question marks where US CAN -WELTY ROAD Soil Boring Location Water-Supply Well Kinder Morgan Pipeline ----- San Joaquin County existence is unknown. O� ® ; Former building '255 a (offsite investigation) (Crop Production Services) (location confirmed by GPS) --- Assessor's Parcel Lateral extent of soil affected by hydrocarbons. 35275 Welty Road = where petroleum constituents exceed RSLs Vernalis California o Abandoned Extraction Well Kinder Morgan Pipeline ❑ Existing structure Destroyed Monitoring Well (Crop Production Services) (location inferred) and/or ESLs.Outline dashed where inferred. rn DATE:12/21/2010 ANALYST:MOORECYN FIGURE: =� TPHc=Total Petroleum Hydrocarbons quantified as crude oil ---=Sample not analyzed for this constituent WOO=Central Valley RWQCB Water Quality Objective Results presented in bold equal or exceed RSLs and/or ESLs for soil TPHd=Total Petroleum Hydrocarbons quantified as diesel ft=Feet below ground surface U.S.EPA=U.S.Environmental Protection Agency and/or WQOs for groundwater.See Tables 1 through 4 for RSLs,ESLs, _�� e i The Denham Companies,LLC { NO=Not Detected at or above laboratory reporting limit GW=Groundwater RWQCB=Regional Water Quality Control Board and WQOs. nym,00yoh,Fwd s•bsicfiaryry v NE=No Exceedances of RSLs or ESLs in soil;no exceedances of WQOs RSL=U.S.EPA Regional Screening Level -All results are presented in milligrams per kilogram(mg/kg)for soil and -Date represents the date sample was collected. F�amSrrence roSeru+rorts W CALIFORNIA LOCATION MAP or ESLs in groundwater ESL=San Francisco Bay RWQCB Environmental Screening Level micrograms per liter(Ng/L)for groundwater.