Geologic Vulnerability - Urban Watersheds: Geology, Contamination, and Sustainable Development - page 215

MW 26

MW 30

693.2

MW 31

MW 5

Building

MW 20

MW 34

MW 6

MW 25

MW 19

MW 28

Main building

MW 17

MW 18

Building

MW 14

MW 27

MW 16

MW 23

MW 21

MW 3

MW 24

MW 1

MW 29

RW-1 MW 36

MW 2

MW 12

MW 15

MW 11

MW 9

MW 7

MW 13

MW 10

MW 22

MW 8

MW 4

FIGURE 6.6
Groundwater flow pattern at Site 2.

TABLE 6.6
Contaminant Types, Concentration, Mass Remediated for Site 2 High
Vulnerability Site

Maximum
Concentration
in Soil (μg/kg)

Maximum
Concentration in
Groundwater (μg/L) a

Estimated
Contaminant Mass
Remediated kg/(lb) Contaminant

VOCs 45/(100)

DNAPL compounds
Tetrachloroethene

22,000 3,250

Trichloroethene 8,000 2,200

Cis -1,2-dichoroethene 5,000 1,800

Trans -1,2-dichloroethene 480 280

1,1-Dichloroethene 640 220

1,1,1-Trichloroethane 2,800 2,100

Vinyl chloride 1,100

LNAPL compounds
Ethyl benzene

32,000 240

Xylenes 28,000 130

PCBs 7,000,000 Not detected 13.6/30

a μg/L = microgram per liter.