Former Quality Aluminum Forge

Post-Tenancy Characterization - Long Beach, California


A previous Phase I ESA identified the former use of the Subject Property as an aluminum forging facility primarily for aircraft customers. Two plastic above ground storage tanks (ASTs) of approximately 1,500-2,000 gallons were located in the northeastern corner of the Subject Property, one labeled for storage of new oil and the other for used oil. Three forges of 1,000-1,500 ton capacity and three furnaces for heating aluminum were inside the building. Each forge had sumps approximately 75-91 inches deep to accumulate any oil that leaked from the forge. Additionally, five metal tanks that contained nitric or sulfuric acid, caustic sodium hydroxide, or hot water solutions were present in the northern portion of the building and had a shallow containment basin, approximately 24 inches deep beneath the tanks. A clarifier is present in the northwestern corner of the building.

The Phase I ESA found the following RECs in connection with the Subject Property:

  • The long-term use of the Subject Property for industrial purposes including the documented use of various acids, metal solutions, and associated wastes at the Subject Property; and
  • On-going leakage of hydraulic oil into the sumps beneath the forges.


McAlister GeoScience performed further investigation into the soils at the Subject Property and sludge material present on the walls and floor in the interior of the building.

Elevated levels of TPHs within the motor oil/wax/grease range associated with the material on the interior of the building represents a potential hazard to human health. Additionally, the presence of chromium(VI) and lead above the CHHSLs in soil for commercial/industrial use represents further concern to human health at the Subject Property. Due to the location of the material on the walls and floor of the building, it has potential to be in direct contact with humans and as a result poses a deeper concern to human health.

Based on the laboratory results of the sludge material present on the walls and floor of the interior of the building, McAlister GeoScience recommended proper cleaning and disposal of the sludge material to prevent potential threats to human health for those occupying the building. Proper cleaning and disposal would consist of power-washing the walls and floor, redirecting runoff into the clarifier, characterizing the waste as hazardous or nonhazardous, and proper disposal according to waste characterization. Furthermore, McAlister GeoScience recommends properly abandoning the clarifier in the northwestern corner of the building upon completion of cleaning and disposal of waste.

Based on the laboratory results of the composite soil sample, McAlister GeoScience has no further recommendations at this time regarding the subsurface of the Subject Property.