Superfund Information Systems: Site Profile

Superfund Site:

HANFORD 300-AREA (USDOE)
BENTON COUNTY, WA

Contaminant List

EPA has identified the chemical substances (i.e., hazardous substances, pollutants or contaminants) listed below as contaminants of concern (COCs) for the site. COCs are the chemical substances found at the site that EPA has determined pose an unacceptable risk to human health or the environment. These are the substances evaluated by EPA to be addressed by cleanup actions at the site.

To identify COCs, 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
  • Determines the human health or ecological effects that could result from contact with the contaminants.

The list of COCs provided below come from EPA’s remedy decisions for this site. This list may not reflect a modification to these decisions that removes a contaminant from the COC list. Also, after the decision, a COC may have been cleaned up.

EPA is working to improve data quality. The information presented on this page is undergoing review for accuracy and completeness, and may be subject to change.

The following ATSDR Profile links exit the site Exit
Contaminant Name Contaminated
Media
Area of Site Found
(Operable Unit)
More Information CAS #
1,1,1-TRICHLOROETHANE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 71-55-6
1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 540-59-0
1,2-ETHANEDIOL (ETHYLENE GLYCOL) Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 107-21-1
2-BUTANONE (METHYL ETHYL KETONE) Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 78-93-3
4-METHYL-2-PENTANONE (METHYL ISOBUTYL KETONE) Soil FF-2, FF-5 ALL MEDIA FINAL (04)   108-10-1
ALPHA GROSS Groundwater FF-2, FF-5 ALL MEDIA FINAL (04)   12587-46-1
AMERICIUM Debris 300-FF-2 (03) ATSDR Profile 7440-35-9
AMERICIUM Soil 300-FF-2 (03) ATSDR Profile 7440-35-9
AMERICIUM Solid Waste 300-FF-2 (03) ATSDR Profile 7440-35-9
ANTIMONY Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-36-0
AROCLOR 1016 Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 12674-11-2
AROCLOR 1221 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   11104-28-2
AROCLOR 1232 Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 11141-16-5
AROCLOR 1242 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   53469-21-9
AROCLOR 1248 Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 12672-29-6
AROCLOR 1254 Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 11097-69-1
AROCLOR 1260 Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 11096-82-5
ARSENIC Soil 300-FF-1-SOURCE (01) ATSDR Profile 7440-38-2
ARSENIC Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-38-2
Americium-241 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   14596-10-2
BARIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-39-3
BENZENE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 71-43-2
BENZO[A]PYRENE Soil 300-FF-1-SOURCE (01)   50-32-8
BENZO[A]PYRENE Soil FF-2, FF-5 ALL MEDIA FINAL (04)   50-32-8
BERYLLIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-41-7
BERYLLIUM Solid Waste 300-FF-2 (03) ATSDR Profile 7440-41-7
CADMIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-43-9
CARBON TETRACHLORIDE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 56-23-5
CESIUM-137 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   10045-97-3
CHLOROETHENE (VINYL CHLORIDE) Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 75-01-4
CHLOROFORM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 67-66-3
CHROMIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-47-3
CHROMIUM Solid Waste 300-FF-2 (03) ATSDR Profile 7440-47-3
CHROMIUM(VI) Soil FF-2, FF-5 ALL MEDIA FINAL (04)   18540-29-9
CHRYSENE Soil 300-FF-1-SOURCE (01)   218-01-9
CHRYSENE Soil FF-2, FF-5 ALL MEDIA FINAL (04)   218-01-9
CIS-1,2-DICHLOROETHENE Groundwater FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 156-59-2
CIS-1,2-DICHLOROETHENE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 156-59-2
CIS-1,2-DICHLOROETHENE Groundwater 300-FF-5-GROUNDWATER (02) ATSDR Profile 156-59-2
COBALT Debris 300-FF-2 (03) ATSDR Profile 7440-48-4
COBALT Soil 300-FF-1-SOURCE (01) ATSDR Profile 7440-48-4
COBALT Soil 300-FF-2 (03) ATSDR Profile 7440-48-4
COBALT Solid Waste 300-FF-2 (03) ATSDR Profile 7440-48-4
COBALT-60 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   10148-40-0
COBALT-60 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   10148-40-0
COPPER Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-50-8
CYANIDE Soil FF-2, FF-5 ALL MEDIA FINAL (04)   57-12-5
ETHYL ACETATE Soil FF-2, FF-5 ALL MEDIA FINAL (04)   141-78-6
EUROPIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04)   7440-53-1
EUROPIUM-152 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   14683-23-9
EUROPIUM-155 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   14391-16-3
FLUORIDE Soil FF-2, FF-5 ALL MEDIA FINAL (04)   16984-48-8
HEXACHLORO-1,3-BUTADIENE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 87-68-3
HEXACHLOROETHANE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 67-72-1
IODINE-129 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   15046-84-1
IRON Solid Waste 300-FF-2 (03)   7439-89-6
KEROSENE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 8008-20-6
LEAD Debris 300-FF-2 (03) ATSDR Profile 7439-92-1
LEAD Soil 300-FF-2 (03) ATSDR Profile 7439-92-1
LEAD Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7439-92-1
LEAD Solid Waste 300-FF-2 (03) ATSDR Profile 7439-92-1
LITHIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04)   7439-93-2
MANGANESE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7439-96-5
MERCURY Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7439-97-6
NICKEL Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-02-0
NICKEL Solid Waste 300-FF-2 (03) ATSDR Profile 7440-02-0
NITRATE Groundwater FF-2, FF-5 ALL MEDIA FINAL (04)   14797-55-8
NITRATE Soil FF-2, FF-5 ALL MEDIA FINAL (04)   14797-55-8
PLUTONIUM Debris 300-FF-2 (03) ATSDR Profile 7440-07-5
PLUTONIUM Soil 300-FF-2 (03) ATSDR Profile 7440-07-5
PLUTONIUM-238 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   13981-16-3
PLUTONIUM-238 Solid Waste 300-FF-2 (03)   13981-16-3
PLUTONIUM-239 Debris 300-FF-2 (03)   15117-48-3
PLUTONIUM-239 Soil 300-FF-2 (03)   15117-48-3
PLUTONIUM-239 Solid Waste 300-FF-2 (03)   15117-48-3
PLUTONIUM-239/240 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   E17075086
PLUTONIUM-240 Debris 300-FF-2 (03)   14119-33-6
PLUTONIUM-240 Soil 300-FF-2 (03)   14119-33-6
PLUTONIUM-240 Solid Waste 300-FF-2 (03)   14119-33-6
PLUTONIUM-241 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   14119-32-5
POLYCHLORINATED BIPHENYLS (PCBs) Soil 300-FF-1-SOURCE (01) ATSDR Profile 1336-36-3
SELENIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7782-49-2
SILVER Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-22-4
STRONTIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-24-6
STRONTIUM-90 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   10098-97-2
TECHNETIUM-99 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   7440-26-8
TETRACHLOROETHENE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 127-18-4
THALLIUM Soil 300-FF-1-SOURCE (01)   7440-28-0
THORIUM Debris 300-FF-2 (03) ATSDR Profile 7440-29-1
THORIUM Soil 300-FF-2 (03) ATSDR Profile 7440-29-1
TIN Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-31-5
TIN Solid Waste 300-FF-2 (03) ATSDR Profile 7440-31-5
TOLUENE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 108-88-3
TOTAL PETROLEUM HYDROCARBON -DIESEL Soil FF-2, FF-5 ALL MEDIA FINAL (04)   E17132176
TOTAL PETROLEUM HYDROCARBON -GASOLINE Soil FF-2, FF-5 ALL MEDIA FINAL (04)   E17132184
TRIBUTYL PHOSPHATE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 126-73-8
TRICHLOROETHENE Groundwater FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 79-01-6
TRICHLOROETHENE Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 79-01-6
TRICHLOROETHENE Groundwater 300-FF-5-GROUNDWATER (02) ATSDR Profile 79-01-6
TRITIUM Groundwater 300-FF-2 (03)   10028-17-8
TRITIUM Groundwater FF-2, FF-5 ALL MEDIA FINAL (04)   10028-17-8
TRITIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04)   10028-17-8
URANIUM-233 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   13968-55-3
URANIUM-234 Debris 300-FF-2 (03)   13966-29-5
URANIUM-234 Soil 300-FF-1-SOURCE (01)   13966-29-5
URANIUM-234 Soil 300-FF-2 (03)   13966-29-5
URANIUM-234 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   13966-29-5
URANIUM-234 Solid Waste 300-FF-2 (03)   13966-29-5
URANIUM-234/235/238 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   E967380
URANIUM-235 Debris 300-FF-2 (03)   15117-96-1
URANIUM-235 Soil 300-FF-1-SOURCE (01)   15117-96-1
URANIUM-235 Soil 300-FF-2 (03)   15117-96-1
URANIUM-235 Soil FF-2, FF-5 ALL MEDIA FINAL (04)   15117-96-1
URANIUM-235 Solid Waste 300-FF-2 (03)   15117-96-1
URANIUM-238 Debris 300-FF-2 (03) ATSDR Profile 7440-61-1
URANIUM-238 Groundwater 300-FF-5-GROUNDWATER (02) ATSDR Profile 7440-61-1
URANIUM-238 Groundwater FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-61-1
URANIUM-238 Soil 300-FF-2 (03) ATSDR Profile 7440-61-1
URANIUM-238 Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-61-1
URANIUM-238 Solid Waste 300-FF-2 (03) ATSDR Profile 7440-61-1
URANIUM-238 Debris 300-FF-2 (03) ATSDR Profile 7440-61-1
URANIUM-238 Soil 300-FF-1-SOURCE (01) ATSDR Profile 7440-61-1
URANIUM-238 Soil 300-FF-2 (03) ATSDR Profile 7440-61-1
URANIUM-238 Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-61-1
URANIUM-238 Solid Waste 300-FF-2 (03) ATSDR Profile 7440-61-1
VANADIUM Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-62-2
XYLENE (MIXED ISOMERS) Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 1330-20-7
ZINC Soil FF-2, FF-5 ALL MEDIA FINAL (04) ATSDR Profile 7440-66-6

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

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

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.

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