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Page 1: DM-4 DM-10 DM-8 DM-1 DM-9Nov 05, 2001  · dm-1 dm-10 dm-4 dm-8. pt. san yacht san pablo bay west costa contra county wildcat marsh —4) castro yacht lagoon landfill _çc-10)xe \

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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