EPA Superfund Program: CRYSTAL CHEMICAL CO., HOUSTON, TX

Superfund Site Profile

The 6.8-acre Crystal Chemical Co. site is located in southwest Houston, Texas. Between 1979 and 1981, Crystal Chemical manufactured arsenic-, phenolic- and amine-based herbicides on site. Outdoor storage of raw and finished herbicide products and poor containment of arsenic during loading and unloading operations resulted in arsenic leaks and spills. Although the site is not in a flood-prone area, it is located in the 100-year floodplain. In 1976, the area was subject to repeated flooding, which carried arsenic-contaminated wastewaters off site. These activities and events contaminated soil and groundwater with arsenic. Following cleanup, operation and maintenance activities are ongoing.

TOPICS IN FOCUS


SITE STATUS

Construction
Complete?
Yes (10/02/2003)
Human Exposure
Status

Under Control
Contaminated Ground
Water Status
Under Control
Site-Wide Ready for
Anticipated Use?
Yes