“San Fernando Valley (Area 1 North Hollywood and Burbank)”
Contaminant Site:
- Seven square miles of contaminated groundwater beneath North Hollywood
- Proposed Date of NPL listing: 10/15/84; Final Date of NPL listing: 06/10/86
Contaminants:
- Volatile Organic Compounds (VOCs) that include Trichloroethylene (TCE) and Perchloroethylene (PCE) [also known as Tetrachloroethylene]
a) Trichloroethylene, characterized with a colorless or blue liquid with chloroform-like odor, is mainly used in the production of textiles and removal of grease from metal parts.
b) Perchloroethylene or tetrachloroethylene, characterized with a colorless organic liquid with a mild, chloroform-like odor, is mainly used in the textile industry and aerosol dry-cleaning products. PCE is usually discharged from factories and dry cleaners.
i.…show more content… The level for PCE was above 5 ppb (parts per billion)
- Recently, EPA added hexavalent chromium (chromium-6), 1,4- dioxane, 1,2,3 Trichloropropane (TCP)
a) Chromium- 6 could cause allergic dermatitis and be carcinogenic to humans. Chromium-6 is usually discharged from steel and pulp mills.
i. The highest value detected in drinking water wells has been 15 parts per billion grams per liter
b) 1, 4 dioxane is mainly used as a solvent for resins, oils, and waxes. Short term inhalation can result in drowsiness, headache, anorexia, and irritation of the eyes, nose, throat, and lungs.
c) Trichloropropane, characterized with colorless to straw-colored liquid, is a chlorinated hydrocarbon with high chemical stability. TCP is usually used as an industrial solvent and as a cleaning and degreasing
