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D RAFT= —�:-
<br /> Sample ID SVP-1/DUP-01
<br /> Screening
<br /> Depth(ft bgs) 5 Level Sample ID SVP-2 Screening
<br /> Date 6/17/2019 DAVIS=AVE Depth(ft bgs) 5 Level
<br /> Benzene 74,000/49,000 14 Date 6/17/2019
<br /> Ethylbenzene 14,0001/7,6001 160 Benzene <2,900 14
<br /> Toluene 16,000/11,0001 44,000 1 Ethyl benzene <3,100 160
<br /> m,p-Xylene 20,0001/15,0001 15,000* ` Toluene <2,200 44,000
<br /> o-Xylene 3,5001/2,5001 15,000* m,p-Xylene <4,900 15,000*
<br /> Naphthalene <29,000/<31,000 12 o-Xylene <2,600 15,000*
<br /> Gasoline Range Naphthalene <33,000 12
<br /> 210,000,000/130,000,000 83,000 SVP-1
<br /> Organics(C6-C12 Gasoline Range
<br /> qftr, ` - SS-81713-0
<br /> S 8176 Organics 6-C12)-06A 96,000,000 83,000
<br /> y t (C
<br /> r ',a • SVP-2
<br /> SS-817B-07A
<br /> r SVP-3
<br /> r _ �
<br /> -•�AU;i # y 'Sample ID SVP-3
<br /> ►�� t� Screening
<br /> Depth(ft bgs) 5 Level
<br /> • Date 6/17/2019
<br /> Benzene 2,300,000 14 :K, •�
<br /> z y. Ethylbenzene 860,000 160
<br /> Toluene 340,0001 44,000
<br /> m,p-Xylene 190,0001 15,000*
<br /> ,1
<br /> o-Xylene 75,0001 15,000*
<br /> Naphthalene <780,000 12
<br /> Gasoline Range
<br /> -f- -,- :. _ - -►! + "'� 3,700,000,000 83,000
<br /> 1i }1 Organics(C6-C12)
<br /> Legend Notes: UST 8178
<br /> *Analytical results for m,p-Xylenes and o-Xylene were compared
<br /> 2019 Soil Vapor Sampling s=feetnelowgoundsurddetectionlimit to the ESL for Total Xylenes. Soil Vapor Sampling Locations and
<br /> Q ft bgs=feet below ground surface Analytical Data (2019)
<br /> Location UST=Underground Storage Tank -All results are posted in micrograms per cubic meter(pg/m).
<br /> J=Result is less than the reporting limit but greater -Yellow highlighted results exceed the San Francisco Regional N
<br /> Proposed Soil and Grab than or equal to the method detection limit and Water Quality Control Board Enviornmental Screening Levels Port of Stockton, Rough&Ready Island
<br /> Groundwater Sampling Location the concentration is an approximate value. (ESL)for commercial/industrial soil gas exposure(Table SG-1) Stockton,California
<br /> (2019,rev.2).Where both cancer risk and non-cancer hazard
<br /> Q Former Building Structures exposure levels were available,the more stringent level was
<br /> selected. GQ p
<br /> eosyntec V Figure
<br /> Former UST -Blue highlighted results are non-detects where the detection
<br /> ®Former Excavation Areas limit exceeds the screening level. consultants
<br /> -Aerial image source:Google Earth Pro,August 2019
<br /> Roads o eo
<br /> Feet WR2501 B March 2022
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