Castro Cove Chevron Richmond Refinery Richmond, California May 1999 38825-002-038 LOCATIONS OF BENCHMARK AND REFERENCE LEVEL EXCEEDANCES IN SURFACE SEDIMENT SAMPLES FIGURE 5-1 4/5/99 jdg ..\38825-002\lebsCCove.cdr 5/17/99 jdg N LEGEND DM-1 DC-1 Sampling Locations Deep Core Locations Concentrations in mg/kg = Exceeds ERL = Exceeds ERM = Exceeds Benchmark * = Retained because no screening benchmark is available 510L 6200M 2132B Shoreline Mudflats Levee Castro Cove Boundary Scale in Feet 0 1000 DM-10 DC-10 DC-1 DC-9 DM-13 DM-11 DM-12 DC-7 TPH(R) 2,900,000 TPH 8,200,000 Benzo(a)anthracene Benzo(a)pyrene Benzo(b)flouranthene Benzo(g,h,i)perylene Chrysene Dibenz(a,h)anthracene Pyrene Anthracene Fluorene Mercury 5,300M 19,000M 3,500M 6,200M 13,000M 2,132M 12,000M 15,000M 680L 54L 13,800L Arsenic TPH(R) 48,000 TPH 430,000 Chlordane 9.7 Trans-Nonachlor 3.4* TPH(R) 58,000 TPH 370,000 Dibenz(a,h)anthracene 79L TPH(R) 70,000 TPH 560,000 TPH(R) 49,000 DM-9 DM-1 DM-10 DM-4 DM-8
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Castro CoveChevron Richmond Refinery
Richmond, CaliforniaMay 199938825-002-038
LOCATIONS OF BENCHMARK AND REFERENCE LEVEL EXCEEDANCES
IN SURFACE SEDIMENT SAMPLES
FIGURE 5-14/5/99 jdg ..\38825-002\lebsCCove.cdr5/17/99 jdg
N
LEGEND
DM-1DC-1
Sampling LocationsDeep Core Locations
Concentrations in mg/kg = Exceeds ERL
= Exceeds ERM= Exceeds Benchmark
* = Retained because no screening benchmark is available
510L 6200M 2132B
Shoreline
Mudflats
Levee
Castro Cove Boundary
Scale in Feet
0 1000
DM-10DC-10
DC-1
DC-9
DM-13
DM-11
DM-12
DC-7
TPH(R) 2,900,000TPH 8,200,000
Benzo(a)anthraceneBenzo(a)pyrene
Benzo(b)flourantheneBenzo(g,h,i)perylene
ChryseneDibenz(a,h)anthracene
PyreneAnthracene
Fluorene
Mercury
5,300M19,000M
3,500M6,200M
13,000M
2,132M
12,000M15,000M
680L54L
13,800LArsenic
TPH(R) 48,000TPH 430,000
Chlordane 9.7Trans-Nonachlor 3.4*
TPH(R) 58,000TPH 370,000
Dibenz(a,h)anthracene 79L
TPH(R) 70,000TPH 560,000
TPH(R) 49,000
DM-9
DM-1
DM-10
DM-4
DM-8
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