Case Studies: Successful and Unsuccessful Redevelopment of Contaminated Sites - Urban Watersheds: Geology, Contamination, and Sustainable Development - page 464

TABLE 14.1
Site Characteristics of C ase Study 1

Characteristic Site Information

Location Michigan

Years of operation More than 100 years

Size of property 5 ac

Geologic setting Glacial and lacustrine sediments

Soil type and
stratigraphy

Interbedded medium to fine sand from the surface to a depth of
approximately 27 m (90 ft) where a clay deposit is encountered

Contaminants detected DNAPL and LNAPL VOCs, PAHs, Pb, Mn, PCBs

COC in groundwater DNAPL VOCs, Mn, and PAHs

Depth to groundwater 4.6 m (15 ft)

Highest CRF GW ranking 1274 DNAPL VOCs

Highest CRF SOIL
ranking

1457 PCBs

Geovulnerability
ranking

78

facility in the late 1800s and evolved into a foundry manufacturing parts for the automo-
bile industry in the early 1900s.
The history of chemical use was significant throughout the operational history at the
facility, specifically

• LNAPL and DNAPL VOCs for cleaning, painting, staining, and varnishing
• PAHs in paint, lubricating, and machining
• Heavy metals from paints
• PCBs in electrical equipment and capacitors
• Heavy metals from foundry operations

Table 14.1 lists some basic information concerning the site including its size, years of opera-
tion, COC, dominant subsurface geology, depth to groundwater, and whether groundwa-
ter is present in an aquifer. Figure 14.1 shows the urban setting of the site.

.

N

Case
Study 1

FIGURE 14.1
Aerial image of Michigan site showing urban setting.