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Pemaco Maywood

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Site Description

The Pemaco Maywood Superfund site, located in a light industrial area in Maywood, CA, was used as a chemical blending facility and chemical distributor from the late 1940s until June 1991. Large quantities of chemicals were stored in aboveground storage tanks, underground storage tanks, and 55-gallon drums. Spills from the tanks and drums resulted in the release of over 50 chemicals into the soil and groundwater, including trichlorethene (TCE), tetrachloroethene (PCE), benzene, toluene, hexane, ethyl benzene, methylene chloride, and vinyl chloride (VC).

Current Site Status and Cleanup Actions to Date

  • In 1997, EPA dug up 29 underground storage tanks, and sent those plus several aboveground storage tanks to a recycling center.
  • In 1998, EPA also installed a soil vapor extraction (PDF) (80 K, 2 pp) system which treated approximately 144,400 pounds of contaminated soil.
  • In February 2004, EPA completed the Remedial Investigation/Feasibility Study (RI/FS) for the Site.
  • In April 2004, EPA requested public comment on its proposed cleanup plan.
  • On January 13, 2005, EPA signed a Record of Decision (ROD) which addressed comments received by the public.
  • Construction on the remedy began on August 5, 2005.

Current Funding Status

  • Construction funding of $9.3 million was awarded during Fiscal Year (FY) 2005 and on-site construction began on August 5, 2005. EPA estimates that an additional $1.57 million will be needed in FY 2006.
  • Underground conveyance piping, vapor wells, and groundwater wells were installed between August 5, 2005 and October 7, 2005.
  • The design for the Electrical Resistive Heating remedy was submitted on September 28, 2005. Construction on this section of the remedy will begin during December 2005.
  • The current EPA construction timeline anticipates that field work on the Site will be completed by April 2006.
  • To date, EPA has spent approximately $3.2 million for investigation work at this site.

For more information on the projects at this site, please read the Pemaco Fact Sheet on the Region 9 Superfund Web site.

Key Accomplishments

  • EPA signed the ROD on January 13, 2005, and construction on the remedy began on August 5, 2005.
  • To date, EPA has spent approximately $3.2 million for investigation work at this site and has allocated $9.3 million for construction activities.
  • In 1997, EPA dug up 29 underground storage tanks, and sent them to a recycling center.
  • In 1998, EPA also installed a soil vapor extraction (PDF) (80 K, 2 pp) system which treated approximately 144,400 pounds of contaminated soil.

 

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