Superfund Information Systems: Site Profile

Superfund Site:

HANFORD 100-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. The COCs are displayed for the OU numbers indicated in the original decision document. OU numbers may change over time.

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 #
ALDRIN Soil 100-IU-1 (21) ATSDR Profile 309-00-2
AROCLOR 1254 Soil F AREA & IU 2 & 6 FINAL (35) ATSDR Profile 11097-69-1
AROCLOR 1260 Soil F AREA & IU 2 & 6 FINAL (35) ATSDR Profile 11096-82-5
ARSENIC Buildings/Structures 100-HR-1 (01) ATSDR Profile 7440-38-2
ARSENIC Buildings/Structures 100-DR-1 (03) ATSDR Profile 7440-38-2
ARSENIC Buildings/Structures 100-BC-1 (04) ATSDR Profile 7440-38-2
ARSENIC Soil 100-HR-1 (01) ATSDR Profile 7440-38-2
ARSENIC Soil 100-DR-1 (03) ATSDR Profile 7440-38-2
ARSENIC Soil 100-BC-1 (04) ATSDR Profile 7440-38-2
ARSENIC Soil 100-IU-1 (21) ATSDR Profile 7440-38-2
ARSENIC Soil F AREA & IU 2 & 6 FINAL (35) ATSDR Profile 7440-38-2
Americium-241 Buildings/Structures 100-BC-1 (04)   14596-10-2
Americium-241 Soil 100-BC-1 (04)   14596-10-2
BARIUM Buildings/Structures 100-BC-1 (04) ATSDR Profile 7440-39-3
BARIUM Soil 100-BC-1 (04) ATSDR Profile 7440-39-3
BENZO[A]PYRENE Soil F AREA & IU 2 & 6 FINAL (35)   50-32-8
CADMIUM Buildings/Structures 100-DR-1 (03) ATSDR Profile 7440-43-9
CADMIUM Buildings/Structures 100-BC-1 (04) ATSDR Profile 7440-43-9
CADMIUM Groundwater 100-NR-1 TSD (30) ATSDR Profile 7440-43-9
CADMIUM Soil 100-DR-1 (03) ATSDR Profile 7440-43-9
CADMIUM Soil 100-BC-1 (04) ATSDR Profile 7440-43-9
CARBON-14 Buildings/Structures 100-DR-1 (03)   14762-75-5
CARBON-14 Buildings/Structures 100-BC-1 (04)   14762-75-5
CARBON-14 Groundwater 100-KR-4 INTERIM (07)   14762-75-5
CARBON-14 Soil 100-DR-1 (03)   14762-75-5
CARBON-14 Soil 100-BC-1 (04)   14762-75-5
CESIUM Groundwater 100-NR-1 TSD (30) ATSDR Profile 7440-46-2
CESIUM-137 Buildings/Structures 100-HR-1 (01)   10045-97-3
CESIUM-137 Buildings/Structures 100-DR-1 (03)   10045-97-3
CESIUM-137 Buildings/Structures 100-BC-1 (04)   10045-97-3
CESIUM-137 Soil 100-HR-1 (01)   10045-97-3
CESIUM-137 Soil 100-DR-1 (03)   10045-97-3
CESIUM-137 Soil 100-BC-1 (04)   10045-97-3
CESIUM-137 Soil 100-NR-1 INTERIM (08)   10045-97-3
CESIUM-137 Soil F AREA & IU 2 & 6 FINAL (35)   10045-97-3
CHROMIUM Groundwater 100-HR-3 (02) ATSDR Profile 7440-47-3
CHROMIUM Groundwater 100-KR-4 INTERIM (07) ATSDR Profile 7440-47-3
CHROMIUM Groundwater 100-NR-1 TSD (30) ATSDR Profile 7440-47-3
CHROMIUM Soil 100-IU-1 (21) ATSDR Profile 7440-47-3
CHROMIUM(VI) Buildings/Structures 100-DR-1 (03)   18540-29-9
CHROMIUM(VI) Buildings/Structures 100-BC-1 (04)   18540-29-9
CHROMIUM(VI) Groundwater 100-HR-3 (02)   18540-29-9
CHROMIUM(VI) Groundwater 100-KR-4 INTERIM (07)   18540-29-9
CHROMIUM(VI) Groundwater F AREA & IU 2 & 6 FINAL (35)   18540-29-9
CHROMIUM(VI) Soil 100-HR-1 (01)   18540-29-9
CHROMIUM(VI) Soil 100-DR-1 (03)   18540-29-9
CHROMIUM(VI) Soil 100-BC-1 (04)   18540-29-9
CHROMIUM(VI) Soil F AREA & IU 2 & 6 FINAL (35)   18540-29-9
CHRYSENE Soil 100-HR-1 (01)   218-01-9
COBALT-60 Buildings/Structures 100-HR-1 (01)   10198-40-0
COBALT-60 Buildings/Structures 100-DR-1 (03)   10198-40-0
COBALT-60 Buildings/Structures 100-BC-1 (04)   10198-40-0
COBALT-60 Groundwater 100-NR-1 TSD (30)   10198-40-0
COBALT-60 Soil 100-HR-1 (01)   10198-40-0
COBALT-60 Soil 100-DR-1 (03)   10198-40-0
COBALT-60 Soil 100-BC-1 (04)   10198-40-0
COBALT-60 Soil 100-NR-1 INTERIM (08)   10198-40-0
COBALT-60 Soil F AREA & IU 2 & 6 FINAL (35)   10198-40-0
DIELDRIN Soil 100-IU-1 (21) ATSDR Profile 60-57-1
EUROPIUM Buildings/Structures 100-HR-1 (01)   7440-53-1
EUROPIUM Buildings/Structures 100-DR-1 (03)   7440-53-1
EUROPIUM Buildings/Structures 100-BC-1 (04)   7440-53-1
EUROPIUM Groundwater 100-NR-1 TSD (30)   7440-53-1
EUROPIUM Soil 100-HR-1 (01)   7440-53-1
EUROPIUM Soil 100-DR-1 (03)   7440-53-1
EUROPIUM Soil 100-BC-1 (04)   7440-53-1
EUROPIUM Soil F AREA & IU 2 & 6 FINAL (35)   7440-53-1
EUROPIUM-152 Buildings/Structures 100-HR-1 (01)   14683-23-9
EUROPIUM-152 Buildings/Structures 100-DR-1 (03)   14683-23-9
EUROPIUM-152 Buildings/Structures 100-BC-1 (04)   14683-23-9
EUROPIUM-152 Soil 100-HR-1 (01)   14683-23-9
EUROPIUM-152 Soil 100-DR-1 (03)   14683-23-9
EUROPIUM-152 Soil 100-BC-1 (04)   14683-23-9
EUROPIUM-152 Soil F AREA & IU 2 & 6 FINAL (35)   14683-23-9
EUROPIUM-155 Buildings/Structures 100-BC-1 (04)   14391-16-3
EUROPIUM-155 Soil 100-BC-1 (04)   14391-16-3
LEAD Buildings/Structures 100-HR-1 (01) ATSDR Profile 7439-92-1
LEAD Buildings/Structures 100-BC-1 (04) ATSDR Profile 7439-92-1
LEAD Groundwater 100-NR-1 TSD (30) ATSDR Profile 7439-92-1
LEAD Soil 100-HR-1 (01) ATSDR Profile 7439-92-1
LEAD Soil 100-DR-1 (03) ATSDR Profile 7439-92-1
LEAD Soil 100-BC-1 (04) ATSDR Profile 7439-92-1
LEAD Soil 100-IU-1 (21) ATSDR Profile 7439-92-1
LEAD Soil F AREA & IU 2 & 6 FINAL (35) ATSDR Profile 7439-92-1
MANGANESE Soil 100-BC-1 (04) ATSDR Profile 7439-96-5
MERCURY Buildings/Structures 100-BC-1 (04) ATSDR Profile 7439-97-6
MERCURY Groundwater 100-NR-1 TSD (30) ATSDR Profile 7439-97-6
MERCURY Soil 100-BC-1 (04) ATSDR Profile 7439-97-6
MERCURY Soil F AREA & IU 2 & 6 FINAL (35) ATSDR Profile 7439-97-6
MINERAL OILS Soil 100-IU-1 (21)   8012-95-1
NICKEL Soil 100-IU-1 (21) ATSDR Profile 7440-02-0
NICKEL Soil F AREA & IU 2 & 6 FINAL (35) ATSDR Profile 7440-02-0
NITRATE Groundwater 100-HR-3 (02)   14797-55-8
NITRATE Groundwater 100-NR-1 TSD (30)   14797-55-8
NITRATE Groundwater F AREA & IU 2 & 6 FINAL (35)   14797-55-8
NITRATE Soil F AREA & IU 2 & 6 FINAL (35)   14797-55-8
NITRATE/NITRITE Groundwater 100-KR-4 INTERIM (07)   E701177
OIL & GREASE Soil 100-IU-1 (21)   TBD-00000021
P,P'-DDD Soil 100-IU-1 (21) ATSDR Profile 72-54-8
P,P'-DDE Soil 100-IU-1 (21) ATSDR Profile 72-55-9
P,P'-DDT Soil 100-IU-1 (21) ATSDR Profile 50-29-3
PLUTONIUM Buildings/Structures 100-BC-1 (04) ATSDR Profile 7440-07-5
PLUTONIUM Soil 100-BC-1 (04) ATSDR Profile 7440-07-5
PLUTONIUM-238 Buildings/Structures 100-HR-1 (01)   13981-16-3
PLUTONIUM-238 Soil 100-HR-1 (01)   13981-16-3
PLUTONIUM-239 Groundwater 100-NR-1 TSD (30)   15117-48-3
PLUTONIUM-239/240 Buildings/Structures 100-HR-1 (01)   E17075086
PLUTONIUM-239/240 Buildings/Structures 100-DR-1 (03)   E17075086
PLUTONIUM-239/240 Buildings/Structures 100-BC-1 (04)   E17075086
PLUTONIUM-239/240 Soil 100-HR-1 (01)   E17075086
PLUTONIUM-239/240 Soil 100-DR-1 (03)   E17075086
PLUTONIUM-239/240 Soil 100-BC-1 (04)   E17075086
PLUTONIUM-240 Groundwater 100-NR-1 TSD (30)   14119-33-6
RADIONUCLIDES Debris K-BASINS (29)   E649632
RADIONUCLIDES Sludge K-BASINS (29)   E649632
RADIONUCLIDES Solid Waste K-BASINS (29)   E649632
RADIUM-226 Buildings/Structures 100-DR-1 (03)   13982-63-3
RADIUM-226 Soil 100-DR-1 (03)   13982-63-3
STRONTIUM Soil 100-NR-1 INTERIM (08) ATSDR Profile 7440-24-6
STRONTIUM-90 Buildings/Structures 100-HR-1 (01)   10098-97-2
STRONTIUM-90 Buildings/Structures 100-DR-1 (03)   10098-97-2
STRONTIUM-90 Buildings/Structures 100-BC-1 (04)   10098-97-2
STRONTIUM-90 Groundwater 100-HR-3 (02)   10098-97-2
STRONTIUM-90 Groundwater 100-KR-4 INTERIM (07)   10098-97-2
STRONTIUM-90 Groundwater F AREA & IU 2 & 6 FINAL (35)   10098-97-2
STRONTIUM-90 Soil 100-HR-1 (01)   10098-97-2
STRONTIUM-90 Soil 100-DR-1 (03)   10098-97-2
STRONTIUM-90 Soil 100-BC-1 (04)   10098-97-2
STRONTIUM-90 Soil F AREA & IU 2 & 6 FINAL (35)   10098-97-2
TECHNETIUM-99 Groundwater 100-HR-3 (02)   7440-26-8
THORIUM-228 Buildings/Structures 100-DR-1 (03)   14274-82-9
THORIUM-228 Buildings/Structures 100-BC-1 (04)   14274-82-9
THORIUM-228 Groundwater 100-NR-1 TSD (30)   14274-82-9
THORIUM-228 Soil 100-DR-1 (03)   14274-82-9
THORIUM-228 Soil 100-BC-1 (04)   14274-82-9
THORIUM-232 Groundwater 100-NR-1 TSD (30) ATSDR Profile 7440-29-1
THORIUM-232 Soil 100-NR-1 INTERIM (08) ATSDR Profile 7440-29-1
TOTAL PETROLEUM HYDROCARBON -DIESEL Soil F AREA & IU 2 & 6 FINAL (35)   E17132176
TOTAL PETROLEUM HYDROCARBON -GASOLINE Soil F AREA & IU 2 & 6 FINAL (35)   E17132184
TRICHLOROETHENE Groundwater 100-KR-4 INTERIM (07) ATSDR Profile 79-01-6
TRICHLOROETHENE Groundwater F AREA & IU 2 & 6 FINAL (35) ATSDR Profile 79-01-6
TRITIUM Buildings/Structures 100-BC-1 (04)   10028-17-8
TRITIUM Groundwater 100-HR-3 (02)   10028-17-8
TRITIUM Groundwater 100-KR-4 INTERIM (07)   10028-17-8
TRITIUM Groundwater 100-NR-1 TSD (30)   10028-17-8
TRITIUM Soil 100-BC-1 (04)   10028-17-8
URANIUM-233 Groundwater 100-NR-1 TSD (30)   13968-55-3
URANIUM-234 Groundwater 100-NR-1 TSD (30)   13966-29-5
URANIUM-234/235/238 Groundwater 100-HR-3 (02)   E967380
URANIUM-238 Buildings/Structures 100-BC-1 (04) ATSDR Profile 7440-61-1
URANIUM-238 Groundwater 100-NR-1 TSD (30) ATSDR Profile 7440-61-1
URANIUM-238 Soil 100-BC-1 (04) ATSDR Profile 7440-61-1

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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