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.