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The Superfund Program is in the process of deploying a new information system, the Superfund Enterprise Management System (SEMS) which is replacing CERCLIS. CERCLIS was frozen as of November 12, 2013. Updated data will become available in early 2014 when SEMS is fully operational.

 
Contaminants of Concern at
PADUCAH GASEOUS DIFFUSION PLANT (USDOE) (EPA ID: KY8890008982)
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  The chemical substances (i.e., hazardous substances, pollutants, or contaminants) listed below were identified as contaminants of concern (COC) for the site. COCs are the chemical substances found at the site that the EPA has determined pose an unacceptable risk to human health or the environment. These are the substances that are addressed by cleanup actions at the site. Identifying COCs is a process where the EPA identifies people and ecological resources that could be exposed to contamination found at the site, determines the amount and type of contaminants present, and identifies the possible negative human health or ecological effects that could result from contact with the contaminants.

The contaminants of concern at this site are sorted below by contaminant name. You may also sort this list by the area of the site on which it is found, called operable units (OUs), or sort this list according to the media in which they were found (e.g. soil or ground water).

see the glossary for definitions of contaminated media and operable units (OUs) >>
 
   
    CAS # Contaminant Name Contaminated
Media
Area of Site
Found (OU)
More Information    
    75-35-4 1,1-DCE Ground Water GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    75-35-4 1,1-DICHLOROETHENE Ground Water GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    75-35-4 1,1-DICHLOROETHENE Soil GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    75-35-4 1,1-DICHLOROETHYLENE Ground Water NE PLUME CONTAINMENT 1 (03) ATSDR Profile    
    7429-90-5 ALUMINUM (METAL) Soil SURFACE WATER OPERABLE UNIT (18)      
    7440-35-9 AMERICIUM-241 Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-36-0 ANTIMONY Sediment WAG 1 & 7 (05) ATSDR Profile    
    7440-36-0 ANTIMONY Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    11096-82-5 AROCLOR-1260 Liquid Waste NS DIV DITCH (06)      
    7440-38-2 ARSENIC Sediment WAG 1 & 7 (05) ATSDR Profile    
    7440-38-2 ARSENIC Soil WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-38-2 ARSENIC Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-39-3 BARIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    205-99-2 BENZO(B)FLUORANTHENE Soil SURFACE WATER OPERABLE UNIT (18)      
    191-24-2 BENZO(GHI)PERYLENE Soil SURFACE WATER OPERABLE UNIT (18)      
    207-08-9 BENZO(K)FLUORANTHENE Soil SURFACE WATER OPERABLE UNIT (18)      
    50-32-8 BENZO[A]PYRENE Soil SURFACE WATER OPERABLE UNIT (18)      
    7440-41-7 BERYLLIUM Ground Water WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-41-7 BERYLLIUM Sediment WAG 1 & 7 (05) ATSDR Profile    
    7440-41-7 BERYLLIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    117-81-7 BIS(2-ETHYLHEXYL)PHTHALATE Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-43-9 CADMIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    10045-97-3 CESIUM-137 Soil SURFACE WATER OPERABLE UNIT (18)      
    67-66-3 CHLOROFORM Ground Water GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    7440-47-3 CHROMIUM Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-47-3 CHROMIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-48-4 COBALT AND COMPOUNDS Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-50-8 COPPER Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-50-8 COPPER Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    193-39-5 INDENO(1,2,3-CD)PYRENE Soil SURFACE WATER OPERABLE UNIT (18)      
    7439-89-6 IRON Sediment WAG 1 & 7 (05)      
    7439-89-6 IRON Soil SURFACE WATER OPERABLE UNIT (18)      
    7439-92-1 LEAD Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7439-95-4 MAGNESIUM Sediment WAG 1 & 7 (05)      
    7439-96-5 MANGANESE Ground Water WAG 1 & 7 (05) ATSDR Profile    
    7439-96-5 MANGANESE Ground Water WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7439-96-5 MANGANESE Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7439-96-5 MANGANESE Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7439-97-6 MERCURY Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7439-99-8 NEPTUNIUM-237 Liquid Waste NS DIV DITCH (06)      
    7439-99-8 NEPTUNIUM-237 Soil SURFACE WATER OPERABLE UNIT (18)      
    7440-02-0 NICKEL Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-02-0 NICKEL Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    11096-82-5 PCB-1260 Soil SURFACE WATER OPERABLE UNIT (18)      
    85-01-8 PHENANTHRENE Soil SURFACE WATER OPERABLE UNIT (18)      
    7440-07-5 PLUTONIUM Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    15117-48-3 PLUTONIUM-239 Soil SURFACE WATER OPERABLE UNIT (18)      
    1336-36-3 POLYCHLORINATED BIPHENYLS Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7782-49-2 SELENIUM Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7782-49-2 SELENIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-22-4 SILVER Soil WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-22-4 SILVER Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-25-7 TANTALUM Soil SURFACE WATER OPERABLE UNIT (18)      
    79-01-6 TCE Ground Water WAG 27 (15) ATSDR Profile    
    79-01-6 TCE Soil WAG 27 (15) ATSDR Profile    
    7440-26-8 TECHNETIUM-99 Ground Water NW PLUME CONTAINMENT 1 (02)      
    7440-26-8 TECHNETIUM-99 Ground Water WAG 22 BURIAL GROUNDS (08)      
    7440-26-8 TECHNETIUM-99 Liquid Waste NS DIV DITCH (06)      
    7440-26-8 TECHNETIUM-99 Soil SURFACE WATER OPERABLE UNIT (18)      
    7440-28-0 THALLIUM Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-28-0 THALLIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-29-1 THORIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    14269-63-7 THORIUM-230 Liquid Waste NS DIV DITCH (06)      
    14269-63-7 THORIUM-230 Soil SURFACE WATER OPERABLE UNIT (18)      
    156-60-5 TRANS-1,2-DICHLOROETHENE Soil GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    79-01-6 TRICHLOROETHENE Ground Water GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    79-01-6 TRICHLOROETHENE Soil GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    79-01-6 TRICHLOROETHYLENE Ground Water NW PLUME CONTAINMENT 1 (02) ATSDR Profile    
    79-01-6 TRICHLOROETHYLENE Ground Water NE PLUME CONTAINMENT 1 (03) ATSDR Profile    
    79-01-6 TRICHLOROETHYLENE Ground Water WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-33-7 TUNGSTEN METAL Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-61-1 URANIUM Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-61-1 URANIUM Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-61-1 URANIUM Soil WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-61-1 URANIUM Soil WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-61-1 URANIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-61-1 URANIUM Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    13966-29-5 URANIUM-234 Ground Water WAG 22 BURIAL GROUNDS (08)      
    13966-29-5 URANIUM-234 Soil SURFACE WATER OPERABLE UNIT (18)      
    E967380 URANIUM-234/235/238 Soil SURFACE WATER OPERABLE UNIT (18)      
    15117-96-1 URANIUM-235 Ground Water WAG 22 BURIAL GROUNDS (08)      
    15117-96-1 URANIUM-235 Soil SURFACE WATER OPERABLE UNIT (18)      
    7440-61-1 URANIUM-238 Ground Water WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-61-1 URANIUM-238 Ground Water WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-61-1 URANIUM-238 Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-61-1 URANIUM-238 Soil SURFACE WATER OPERABLE UNIT (18) ATSDR Profile    
    7440-62-2 VANADIUM (FUME OR DUST) Ground Water WAG 22 BURIAL GROUNDS (08) ATSDR Profile    
    7440-62-2 VANADIUM (FUME OR DUST) Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-62-2 VANADIUM (FUME OR DUST) Sediment WAG 1 & 7 (05) ATSDR Profile    
    E17133026 VANADIUM, METAL AND/OR ALLOY Soil SURFACE WATER OPERABLE UNIT (18)      
    75-01-4 VINYL CHLORIDE Ground Water GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    75-01-4 VINYL CHLORIDE Soil GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    7440-66-6 ZINC Liquid Waste NS DIV DITCH (06) ATSDR Profile    
    7440-67-7 ZIRCONIUM (METAL) Soil SURFACE WATER OPERABLE UNIT (18)      
    156-59-2 cis-1,2-DICHLOROETHENE Ground Water GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
    156-59-2 cis-1,2-DICHLOROETHENE Soil GROUNDWATER OPERABLE UNIT (19) ATSDR Profile    
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  About CAS #  
  Chemical Abstracts Service (CAS) is a division of the American Chemical Society. CAS builds and maintains the largest and most current database of chemical substance information in the world. These chemical substances are labeled with CAS Registry Numbers® (CASRNs or CAS Numbers) and are used internationally as unique numeric identifiers for a single substance. They have no chemical significance and, because they are widely used, are a link to a wealth of information about a specific chemical substance. They are provided here for reference purposes to hopefully aide you in researching the respective chemical. For more information, visit the CAS Web site. Exit EPA  
 
  About ATSDR  
  The Agency for Toxic Substances and Disease Registry (ATSDR) is an agency of the U.S. Department of Health and Human Services. ATSDR is charged under the Superfund law (CERCLA) to assess the presence and nature of health hazards at specific Superfund sites, to help prevent or reduce further exposure and the illnesses that result from such exposures, and to expand the knowledge base about health effects from exposure to hazardous substances. ATSDR maintains a series of fact sheets and profiles about contaminants of concern commonly found at Superfund sites. Links to these resources are provided above when available. For more information, visit the ATSDR Web site. Exit EPA  
 
  About EPA’s IRIS  
  The Integrated Risk Information System (IRIS), prepared and maintained by the U.S. Environmental Protection Agency (U.S. EPA), is an electronic database containing information on human health effects that may result from exposure to various chemicals in the environment. IRIS was initially developed for EPA staff in response to a growing demand for consistent information on chemical substances for use in risk assessments, decision-making and regulatory activities. The information in IRIS is intended for those without extensive training in toxicology, but with some knowledge of health sciences. For more information, visit the EPA IRIS Web site.  
 
  About EPA’s SRS  
  The Substance Registry System (SRS) is the Environmental Protection Agency's (EPA) central system for information about regulated and monitored substances. The system provides a common basis for identification of chemicals, biological organisms, and other substances listed in EPA regulations and data systems, as well as substances of interest from other sources, such as publications. The system does not provide health hazard information at this time. For more information, visit the EPA SRS Web site.  
 
 
DISCLAIMER: Be advised that the data contained in these profiles are intended solely for informational purposes use by employees of the U.S. Environmental Protection Agency for management of the Superfund program. They are not intended for use in calculating Cost Recovery Statutes of Limitations and cannot be relied upon to create any rights, substantive or procedural, enforceable by any party in litigation with the United States. EPA reserves the right to change these data at any time without public notice.


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