Rocky Flats Plant
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The Rocky Flats Plant was a U.S. manufacturing complex that produced
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...
s parts in the
western United States The Western United States (also called the American West, the Far West, and the West) is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term ''the We ...
, near
Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the Unit ...
,
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
. The facility's primary mission was the fabrication of plutonium pits, which were shipped to other facilities to be assembled into nuclear weapons. Operated from 1952 to 1992, the complex was under the control of the U.S. Atomic Energy Commission (AEC), succeeded by the
Department of Energy A Ministry of Energy or Department of Energy is a government department in some countries that typically oversees the production of fuel and electricity; in the United States, however, it manages nuclear weapons development and conducts energy-re ...
(DOE) in 1977. Plutonium pit production was halted in 1989 after EPA and FBI agents raided the facility and the plant was formally shut down in 1992. Operators of the plant (Rockwell) later pleaded guilty to criminal violations of environmental law. At the time, the fine was one of the largest penalties ever in an environmental law case. Cleanup began in the early 1990s, and the site achieved regulatory closure in 2006. The cleanup effort decommissioned and demolished over 800 structures; removed over 21 tons of weapons-grade material; removed over 1.3 million cubic meters of waste; and treated more than of water. Four groundwater treatment systems were also constructed. Today, the Rocky Flats Plant is gone. The site of the former facility consists of two distinct areas: (1) the "Central Operable Unit" (including the former industrial area), which remains off-limits to the public as a CERCLA " Superfund" site, owned and managed by the U.S. Department of Energy, and (2) the
Rocky Flats National Wildlife Refuge The Rocky Flats National Wildlife Refuge is National Wildlife Refuge in the United States, located approximately northwest of Denver, Colorado. The refuge is situated west of the cities of Broomfield and Westminster and situated north of the ...
, owned and managed by the U.S. Fish and Wildlife Service. The Refuge (also known as the "Peripheral Operable Unit") was determined to be suitable for unrestricted use. Every five years, the U.S. Department of Energy,
U.S. Environmental Protection Agency The Environmental Protection Agency (EPA) is an Independent agencies of the United States government, independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon pro ...
, and
Colorado Department of Public Health and Environment The Colorado Department of Public Health and Environment (CDPHE) is the principal department of the Colorado state government responsible for public health and environment Environment most often refers to: __NOTOC__ * Natural environment, all liv ...
review environmental data and other information to assess whether the remedy is functioning as intended. The latest Five-Year Review for the site, released in August 2017, concluded the site remedy is protective of human health and the environment.


History


1950s

Following
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
, the United States increased production of
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...
s. The AEC chose the Dow Chemical Company to manage the production facility. A site about northwest of Denver on a windy plateau called Rocky Flats was chosen for the facility. On July 10, 1951, Ground was broken on the first building in the facility. Contemporary news reports stated that the site would not be used to produce nuclear bombs, but might be used to produce uranium and plutonium components for use in nuclear weapons. In 1953, the plant began production of bomb components, manufacturing
plutonium Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibi ...
pits which were used at the Pantex plant in Amarillo, Texas to assemble fission weapons and the primary stages of thermonuclear weapons. By 1957, the plant had expanded to 27 buildings. On September 11, 1957, a plutonium fire occurred in one of the
glovebox A glovebox (or glove box) is a sealed container that is designed to allow one to manipulate objects where a separate atmosphere is desired. Built into the sides of the glovebox are gloves arranged in such a way that the user can place their hand ...
es used to handle
radioactive Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is consi ...
materials, igniting the combustible rubber gloves and
plexiglas Poly(methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Plexiglas, Acrylite ...
windows of the box. Metallic plutonium is a fire hazard and pyrophoric; under the right conditions it may ignite in air at room temperature. The accident resulted in the contamination of Building 771, the release of plutonium into the atmosphere, and caused $818,600 in damage. An incinerator for plutonium-contaminated waste was installed in Building 771 in 1958.


1960s

Throughout the 1960s, the plant continued to enlarge and add buildings. The 1960s also brought more contamination to the site. In 1967, of plutonium-contaminated lubricants and
solvent A solvent (s) (from the Latin '' solvō'', "loosen, untie, solve") is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. Water is a solvent for ...
s had accumulated on Pad 903. A large number of them were found to be leaking, and low-level contaminated soil was becoming wind-borne from this area. At least some of the leakage had been detected as early as 1962. Later analysis completed in 1999 for the CDPHE estimated that between 6 and 58 Curies of plutonium spilled on to Pad 903 soil due to barrel leakage.Till, John E., et al. (September 1999). "Technical Summary Report for the Historical Exposures Studies for Rocky Flats Phase II". Radiological Assessments Corporation. This pad was covered with gravel and paved over with
asphalt Asphalt, also known as bitumen (, ), is a sticky, black, highly viscous liquid or semi-solid form of petroleum. It may be found in natural deposits or may be a refined product, and is classed as a pitch. Before the 20th century, the term ...
in 1969. May 11, 1969 saw a major fire in a glovebox in Building 776/777. This was the costliest
industrial accident A work accident, workplace accident, occupational accident, or accident at work is a "discrete occurrence in the course of work" leading to physical or mental occupational injury. According to the International Labour Organization (ILO), more tha ...
ever to occur in the United States up to that time. Cleanup from the accident took two years and led to safety upgrades on the site, including fire sprinkler systems and firewalls.


1970s

In order to reduce the danger of public contamination and to create a security area around the plant following protests, the
United States Congress The United States Congress is the legislature of the federal government of the United States. It is bicameral, composed of a lower body, the House of Representatives, and an upper body, the Senate. It meets in the U.S. Capitol in Washing ...
authorized the purchase of a buffer zone around the plant in 1972. In 1973, nearby Walnut Creek (Colorado) and the Great Western Reservoir were found to have elevated
tritium Tritium ( or , ) or hydrogen-3 (symbol T or H) is a rare and radioactive isotope of hydrogen with half-life about 12 years. The nucleus of tritium (t, sometimes called a ''triton'') contains one proton and two neutrons, whereas the nucleus of ...
levels. The tritium was determined to have been released from contaminated materials shipped to Rocky Flats from the
Lawrence Livermore Laboratory Lawrence Livermore National Laboratory (LLNL) is a federal research facility in Livermore, California, United States. The lab was originally established as the University of California Radiation Laboratory, Livermore Branch in 1952 in respons ...
. Discovery of the contamination by the Colorado Department of Health led to investigations by the AEC and
United States Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it ...
(EPA). As a result of the investigation, several
mitigation Mitigation is the reduction of something harmful or the reduction of its harmful effects. It may refer to measures taken to reduce the harmful effects of hazards that remain ''in potentia'', or to manage harmful incidents that have already occur ...
efforts were put in place to prevent further contamination. Some of the elements included channeling of
wastewater Wastewater is water generated after the use of freshwater, raw water, drinking water or saline water in a variety of deliberate applications or processes. Another definition of wastewater is "Used water from any combination of domestic, industrial ...
runoff to three
dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...
s for testing before release into the water system and construction of a reverse osmosis facility to clean up wastewater. The next year, elevated plutonium levels were found in the topsoil near the now covered Pad 903. An additional of buffer zone were purchased. 1975 saw
Rockwell International Rockwell International was a major American manufacturing conglomerate involved in aircraft, the space industry, defense and commercial electronics, components in the automotive industry, printing presses, avionics and industrial products. R ...
replacing Dow Chemical as the contractor for the site. This year also saw local landowners suing for property contamination caused by the plant. In 1978, 60 protesters belonging to the
Rocky Flats Truth Force The Rocky Flats Truth Force was a grass-roots non-violent anti-nuclear group formed during protests at the Rocky Flats Nuclear Weapons Plant near Golden, Colorado during the late 1970s. Demonstrations and track blockages at the Rocky Flats Plant in ...
, or Satyagraha Affinity Group, based in Boulder, Colorado, were arrested for
trespassing Trespass is an area of tort law broadly divided into three groups: trespass to the person, trespass to chattels, and trespass to land. Trespass to the person historically involved six separate trespasses: threats, assault, battery, wounding, ...
at Rocky Flats, and were brought to trial before Judge Kim Goldberger. Dr. John Candler Cobb, Professor of Preventive Medicine at the
University of Colorado The University of Colorado (CU) is a system of public universities in Colorado. It consists of four institutions: University of Colorado Boulder, University of Colorado Colorado Springs, University of Colorado Denver, and the University o ...
Medical Center, testified that the most significant danger of radioactive contamination came from the 1967 incident in which oil barrels containing plutonium leaked of
oil An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) & lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated ...
into
sand Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class o ...
under the barrels, which was then blown by strong winds as far away as Denver. Dr. Carl Johnson, Jefferson County health director from 1973 to 1981, directed numerous studies on contamination levels and health risks the plant posed to public health. Based on his conclusions, Johnson opposed housing development near Rocky Flats. He was fired for opposing home development in contaminated areas. He later won a whistleblower lawsuit against Jefferson County, Colorado . Kristen Iversen, author of ''Full Body Burden: Growing Up in the Nuclear Shadow of Rocky Flats'', contends later studies confirmed many of his findings. In 1985, after hearing from various experts, the U.S. District Court for the District Court of Colorado found the results of Dr. Carl Johnson's study were "unreliable because the reported relationship seems implausible given the latency period for the types of cancer reported and because the excess cancers are different from the types of cancers expected to result from internally deposited plutonium." In addition, the court agreed with the Colorado State epidemiologist that "no measurable increases in cancer incidence resulting from operations at Rocky Flats have been demonstrated by any appropriate scientific method." Subsequent and ongoing studies indicate likely ongoing contamination and health issues. To date, there has never been an epidemiological study of people who lived or live near the Rocky Flats site. On April 28, 1979, a few weeks after the Three Mile Island accident, a crowd of close to 15,000 protesters assembled at a nearby site. Singers Jackson Browne and Bonnie Raitt took the stage along with various speakers. The following day, 286 protesters including Daniel Ellsberg were arrested for civil disobedience/trespassing on the Rocky Flats facility.


1980s

On December 11, 1980, Congress enacted the Comprehensive Environmental Response, Compensation, and Liability Act, which provided the authority to respond directly to releases or threatened releases at the nation's worst environmental sites. ''
Dark Circle The Dark Circle is a criminal organization that appears in comic books from DC Comics, primarily part of the Legion of Super-Heroes comic books. They first appeared in 1968, created by Jim Shooter as a criminal organization founded by five memb ...
'' is a 1982 American documentary film that focuses on the Rocky Flats Plant and its plutonium contamination of the area's environment. The film won the Grand Prize for documentary at the Sundance Film Festival and received a national Emmy Award for "Outstanding individual achievement in news and documentary".
Dark Circle
', DVD release date March 27, 2007, Directors: Judy Irving, Chris Beaver, Ruth Landy. .
Rocky Flats became a focus of protest by peace activists throughout the 1980s. In 1983, a demonstration was organized that brought together 17,000 people who joined hands in an encirclement around the perimeter of the plant. A perimeter security zone was installed around the facility in 1983 and was upgraded with remote detection abilities in 1985. Also in 1983, the first radioactive waste was processed through the aqueous recovery system, creating a plutonium button. A celebration of 250,000 continuous safe hours by the employees at Rocky Flats happened in 1985. The same year, Rockwell received Industrial Research Magazine's IR-100 award for a process to remove
actinide The actinide () or actinoid () series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. The actinide series derives its name from the first element in the series, actinium. The info ...
contamination from wastewater at the plant. The next year, the site received a National Safety Council Award of Honor for outstanding safety performance. By 1986 over 5,500 workers were employed at the site, and were represented by the Oil, Chemical and Atomic Workers International Union (OCAW). In 1986, the State of Colorado's Public Health Department, EPA, and DOE entered into a compliance agreement with the goal of bringing the facility into compliance with RCRA and Colorado Hazardous Waste Act permitting, generator, and waste management requirements. The agreement also initiated a process for investigating and remediating environmental contamination. In addition, the agreement established a framework addressing DOE's mixed-waste. On August 10, 1987, 320 demonstrators were arrested after they tried to force a one-day shutdown of the Rocky Flats nuclear weapons plant. In 1988, a
Department of Energy A Ministry of Energy or Department of Energy is a government department in some countries that typically oversees the production of fuel and electricity; in the United States, however, it manages nuclear weapons development and conducts energy-re ...
(DOE) safety evaluation resulted in a report that was critical of safety measures at the plant. The EPA fined the plant for
polychlorinated biphenyl Polychlorinated biphenyls (PCBs) are highly carcinogenic chemical compounds, formerly used in industrial and consumer products, whose production was banned in the United States by the Toxic Substances Control Act in 1979 and internationally by t ...
(PCB) leaks from a
transformer A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. A varying current in any coil of the transformer produces a varying magnetic flux in the transformer' ...
. A solid waste form, called
pondcrete Pondcrete is a mixture of cement and sludge. Its role is to immobilize hazardous waste and, in some cases, low-level and mixed-level radioactive waste, in the form of solid material. The material was used by the United States Department of Energ ...
, was found not to have cured properly and was leaking from containers. A boxcar of transuranic waste from the site was refused entry into Idaho and returned to the plant. Plans to potentially close the plant were released. In 1989 an employee left a faucet running, resulting in
chromic acid The term chromic acid is usually used for a mixture made by adding concentrated sulfuric acid to a dichromate, which may contain a variety of compounds, including solid chromium trioxide. This kind of chromic acid may be used as a cleaning mixtu ...
being released into the sanitary water system. The Colorado Department of Health and the EPA both posted full-time personnel at the plant to monitor safety. Plutonium production was suspended due to safety violations. In August 1989, an estimated 3,500 people turned out for a demonstration at Rocky Flats.


FBI/EPA investigation, June 1989 raid

In 1987, plant insiders started to covertly inform the Environmental Protection Agency (EPA) and the Federal Bureau of Investigation (FBI) about the unsafe conditions. In December 1988, the FBI commenced clandestine flights of light aircraft over the area and confirmed via infrared video recordings that the "outdated and unpermitted" Building 771 incinerator was apparently being used late into the night. After several months of collecting evidence both from workers and via direct measurement, the FBI informed the DOE on June 6, 1989 that they wanted to meet to discuss a potential
terrorist Terrorism, in its broadest sense, is the use of criminal violence to provoke a state of terror or fear, mostly with the intention to achieve political or religious aims. The term is used in this regard primarily to refer to intentional violen ...
threat. On June 6, 1989, the United States District Court for the District Court of Colorado issued a search warrant to the FBI, based in part on information collected by Colorado Department of Health (now CDPHE) inspectors during the 1980s. Dubbed "Operation Desert Glow", the raid, sponsored by the
United States Department of Justice The United States Department of Justice (DOJ), also known as the Justice Department, is a federal executive department of the United States government tasked with the enforcement of federal law and administration of justice in the United Stat ...
(DOJ), began at 9 a.m. on June 6, 1989. After arriving in the meeting room, the FBI agents revealed the true reason for the meeting to stunned DOE and Rockwell officials, including Dominic Sanchini, Rockwell International's manager of Rocky Flats. As it happens, Sanchini died the next year in Boulder of cancer. The FBI discovered numerous violations of federal anti- pollution laws, including limited contamination of water and soil. In 1992, Rockwell International was charged with environmental crimes, including violations of the
Resource Conservation and Recovery Act The Resource Conservation and Recovery Act (RCRA), enacted in 1976, is the principal federal law in the United States governing the disposal of solid waste and hazardous waste.United States. Resource Conservation and Recovery Act. , , ''et seq., ...
(RCRA) and the Clean Water Act. Rockwell pleaded guilty and paid an $18.5 million fine. This was the largest fine for an environmental crime to that date. After the June 1989 FBI raid, federal authorities used the subsequent grand jury investigation to gather evidence of wrongdoing and then sealed the record. In October 2006, DOE announced completion of the Rocky Flats cleanup without this information being available. The FBI raid led to the formation of Colorado's first special grand jury in 1989, the juried testimony of 110 witnesses, reviews of 2,000 exhibits, and ultimately a 1992 plea agreement in which Rockwell admitted to 10 federal environmental crimes and agreed to pay $18.5 million in fines out of its own funds. This amount was less than the company had been paid in bonuses for running the plant as determined by the Government Accounting Office (GAO), and yet was also by far the highest hazardous-waste fine ever; four times larger than the previous record. Due to indemnification of nuclear contractors, without some form of settlement being arrived at between the U.S. Justice Department and Rockwell, the cost of paying any civil penalties would ultimately have been borne by U.S. taxpayers. While any criminal penalties allotted to Rockwell would not have been covered, for its part Rockwell claimed that the Department of Energy had specifically exempted them from most environmental laws, including hazardous waste. Regardless, and as forewarned by the prosecuting U.S. Attorney, Ken Fimberg/Scott, the Department of Justice's stated findings and plea agreement with Rockwell were heavily contested by its own, 23-member special grand jury. Press leaks on both sides—members of the DOJ and the grand jury—occurred in violation of secrecy regarding grand jury information, a federal crime punishable by a prison sentence. The public contest led to U.S. Congressional oversight committee hearings chaired by Congressman Howard Wolpe, which issued subpoenas to DOJ principals despite several instances of DOJ's refusal to comply. The hearings, whose findings include that the Justice Department had "bargained away the truth", ultimately still did not fully reveal to the public the special grand jury's report, which remains sealed by the DOJ courts. The special grand jury report was nonetheless leaked to '' Westword''. According to its subsequent publications, the Rocky Flats special grand jury had compiled indictments charging three DOE officials and five Rockwell employees with environmental crimes. The grand jury also wrote a report, intended for the public's consumption per their charter, lambasting the conduct of DOE and Rocky Flats contractors for "engaging in a continuing campaign of distraction, deception and dishonesty" and noted that Rocky Flats, for many years, had discharged pollutants, hazardous materials and radioactive matter into nearby creeks and Broomfield's and Westminster's water supplies. The DOE itself, in a study released in December of the year prior to the FBI raid, had called Rocky Flats' ground water the single greatest environmental hazard at any of its nuclear facilities.


Sealed grand jury records

Court records from the grand jury proceeding on Rocky Flats have been sealed for a number of years. The
Federal Rules of Criminal Procedure The Federal Rules of Criminal Procedure are the procedural rules that govern how federal criminal prosecutions are conducted in United States district courts and the general trial courts of the U.S. government. They are the companion to the Federa ...
, which govern federal grand jury proceedings, explicitly require grand jury proceedings to be kept secret unless otherwise provided by the Rules. Rocky Flats' secret grand jury proceedings were not unique. However, some activists dispute the reasons for records confidentiality: Dr. LeRoy Moore, a Boulder theologian and peace activist; retired FBI Special Agent Jon Lipsky, who led the FBI's raid of the Rocky Flats plant to investigate illegal plutonium burning and other environmental crimes; and Wes McKinley, who was the foreman of the grand jury investigation into the operations at Rocky Flats (and served several terms as Colorado State Representative). Former grand jury foreman McKinley chronicles his experiences in the 2004 book he co-authored with attorney Caron Balkany, ''The Ambushed Grand Jury'', which begins with an open letter to the U.S. Congress from Special Agent Lipsky: However, a former EPA employee and Jon Lipsky's partner disputes these claims: "Jon kind of went off the deep end," and "He started seeing conspiracy theories in everything."


1990s

Rockwell International was replaced by
EG&G EG&G, formally known as Edgerton, Germeshausen, and Grier, Inc., was a United States national defense contractor and provider of management and technical services. The company was involved in contracting services to the United States government ...
as primary contractor for the Rocky Flats plant. EG&G began an aggressive work safety and cleanup plan for the site that included construction of a system to remove contamination from the
groundwater Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated ...
of the site. The ''Sierra Club vs. Rockwell'' case was decided in favor of the Sierra Club. The ruling directed Rocky Flats to manage plutonium residues as hazardous waste. In 1991, an interagency agreement between DOE, the Colorado Department of Health, and the EPA outlined multiyear schedules for environmental restoration studies and remediation activities. DOE released a report that advocated downsizing the plant's production into a more streamlined facility. Due to the fall of the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
, production of most of the systems at Rocky Flats was no longer needed, leaving only the W88
warhead A warhead is the forward section of a device that contains the explosive agent or toxic (biological, chemical, or nuclear) material that is delivered by a missile, rocket, torpedo, or bomb. Classification Types of warheads include: * Expl ...
primary stages. In 1992, due to an order by President G. H. W. Bush, production of submarine-based
missile In military terminology, a missile is a guided airborne ranged weapon capable of self-propelled flight usually by a jet engine or rocket motor. Missiles are thus also called guided missiles or guided rockets (when a previously unguided rocke ...
s using the W88 trigger was discontinued, leading to the layoff of 4,500 employees at the plant; 4,000 others were retained for long-term cleanup of the facility. The Rocky Flats Plant Transition Plan outlined the environmental restoration process. The DOE announced that of plutonium lined the exhaust ductwork in six buildings on the site. Starting in 1993,
weapons-grade Weapons-grade nuclear material is any fissionable nuclear material that is pure enough to make a nuclear weapon or has properties that make it particularly suitable for nuclear weapons use. Plutonium and uranium in grades normally used in nucle ...
plutonium began to be shipped to the Oak Ridge National Laboratory,
Los Alamos National Laboratory Los Alamos National Laboratory (often shortened as Los Alamos and LANL) is one of the sixteen research and development laboratories of the United States Department of Energy (DOE), located a short distance northwest of Santa Fe, New Mexico, ...
, and the
Savannah River Site The Savannah River Site (SRS) is a U.S. Department of Energy (DOE) reservation in the United States in the state of South Carolina, located on land in Aiken, Allendale, and Barnwell counties adjacent to the Savannah River, southeast of August ...
. In 1994 the site was renamed the Rocky Flats Environmental Technology Site, reflecting the changed nature of the site from weapon production to environmental cleanup and restoration. The cleanup effort was contracted to the Kaiser-Hill Company, which proposed the release of of the buffer zone for public access. In 1998, the
Colorado Department of Public Health and Environment The Colorado Department of Public Health and Environment (CDPHE) is the principal department of the Colorado state government responsible for public health and environment Environment most often refers to: __NOTOC__ * Natural environment, all liv ...
's Cancer Registry conducted an independent study of cancer rates in areas around the Rocky Flats Site. Data showed no pattern of increased cancers tied to Rocky Flats. Throughout the remainder of the 1990s and into the 2000s, cleanup of contaminated sites and dismantling of contaminated buildings continued with the waste materials being shipped to the
Nevada Test Site The Nevada National Security Site (N2S2 or NNSS), known as the Nevada Test Site (NTS) until 2010, is a United States Department of Energy (DOE) reservation located in southeastern Nye County, Nevada, about 65 miles (105 km) northwest of the ...
, the Waste Isolation Pilot Plant in
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ke ...
, and the Envirocare company facility in
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
, which is now EnergySolutions.


2000s

In 2001, Congress passed the Rocky Flats National Wildlife Refuge Act. In July 2007, the U.S. Department of Energy transferred nearly of land on the Rocky Flats site to the
U.S. Fish and Wildlife Service The United States Fish and Wildlife Service (USFWS or FWS) is an agency within the United States Department of the Interior dedicated to the management of fish, wildlife, and natural habitats. The mission of the agency is "working with othe ...
to establish the
Rocky Flats National Wildlife Refuge The Rocky Flats National Wildlife Refuge is National Wildlife Refuge in the United States, located approximately northwest of Denver, Colorado. The refuge is situated west of the cities of Broomfield and Westminster and situated north of the ...
. Surveys of the site reveal 630 species of
vascular plant Vascular plants (), also called tracheophytes () or collectively Tracheophyta (), form a large group of land plants ( accepted known species) that have lignified tissues (the xylem) for conducting water and minerals throughout the plant. They ...
s, 76% of which are native.Nelson, J. K. (2010)
Vascular flora of the Rocky Flats Area, Jefferson County, Colorado, USA.
''Phytologia'' 92:2 121.
Herds of elk are commonly seen on the site. However, the DOE retained the central area of the site, the Central Operable Unit. The last contaminated building was removed and the last weapons-grade plutonium was shipped out in 2003, ending the cleanup based on a modified cleanup agreement. The modified agreement required a higher level of cleanup in the first of
soil Soil, also commonly referred to as earth or dirt Dirt is an unclean matter, especially when in contact with a person's clothes, skin, or possessions. In such cases, they are said to become dirty. Common types of dirt include: * Debri ...
in exchange for not having to remove any contamination below that point unless it posed a chance of migrating to the surface or contaminating the groundwater. About half of the 800 buildings previously existing on the site had been dismantled by early December 2004. By 2006, over 800 buildings had been decommissioned and demolished, with no buildings remaining. Today, the plant and all buildings are gone. The site is contaminated with residual plutonium due to several industrial fires that occurred on the site and other inadvertent releases caused by wind at a waste storage area. The other major contaminant is carbon tetrachloride (CCl4). Both of these substances affected areas adjacent to the site. In addition, there were small releases of beryllium and tritium, as well as dioxin from
incineration Incineration is a waste treatment process that involves the combustion of substances contained in waste materials. Industrial plants for waste incineration are commonly referred to as waste-to-energy facilities. Incineration and other high ...
. Cleanup was declared complete on October 13, 2005. About of the original site, the former industrial area, remains under U.S. DOE Office of Legacy Management control for ongoing environmental monitoring and remediation. On March 14, 2007, DOE, EPA, and CDPHE entered into the Rocky Flats Legacy Management Agreement (RFLMA). The agreement establishes the regulatory framework for implementing the final remedy for the Rocky Flats site and ensuring the protection of human health and the environment. In 2007, because the Peripheral Operable Unit was found to be suitable for unlimited use and unrestricted exposure, EPA posted public notice of its intent to delete this area (now largely the Rocky Flats National Wildlife Refuge) from the EPA's National Priorities List of CERCLA or "Superfund" sites. The Peripheral Operable Unit was subsequently removed from the National Priorities List.


2010s

In September 2010, after a 20-year legal battle, the Tenth Circuit Court of Appeals reversed a $926 million award in a class-action lawsuit against Dow Chemical and Rockwell International. The three-judge panel said that the jury reached its decision on faulty instructions that incorrectly stated the law. The appeals court tossed the jury verdict and sent the case back to the District Court. According to the Appellate Court, the owners of 12,000 properties in the class-action area had not proved their properties were damaged or that they suffered bodily injury from plutonium that blew onto their properties. In response to historic and ongoing reports of health issues by people who live and lived near Rocky Flats, an online health survey was launched in May 2016 by Metropolitan State University, Rocky Flats Downwinders, and other local universities and health agencies to survey thousands of Coloradans who lived east of the Rocky Flats plant while it was operational. On May 19, 2016, a $375 million settlement was reached over claims by more than 15,000 nearby homeowners that plutonium releases from the plant risked their health and devalued their property. This settlement ended a 26-year legal battle between residents and the two corporations that ran the Rocky Flats Plant, Dow Chemical and Rockwell International, for the Department of Energy. June 2014 marked a quarter century since the historic FBI and EPA raid of the Rocky Flats plant. A 3-day weekend of events from Friday, June 6 through Sunday, June 8 took place at the Arvada Center for the Arts, "Rocky Flats Then and Now: 25 Years After the Raid". Panel discussions covered various aspects of the Rocky Flats raid and its aftermath. On display were historical photographs and artifacts, as well as Rocky Flats-inspired art. In 2016, the Colorado Department of Public Health and Environment's Cancer Registry completed a cancer incidence study that looked at the incidence of reported cancers in areas around Rocky Flats from 1990 to 2014. This study followed-up on and was modeled after CDPHE's original Rocky Flats cancer incidence study, which was completed in 1998. Ten cancers specifically linked to plutonium exposure and other cancers of concern to a Health Advisory Panel were assessed in 1998, and again in 2016. The study found "the incidence of all cancers-combined for both adults and children was no different in the communities surrounding Rocky Flats than would be expected based on cancer rates in the remainder of the Denver Metro area for 1990 to 2014." In 2017, the CDPHE Cancer Registry completed a supplement to this study that specifically looked at the incidence of thyroid and rare cancers in neighborhoods around Rocky Flats. Cancer incidence data showed "no evidence of higher than expected frequencies of thyroid cancer" and "the incidence of 'rare' cancer was not higher than expected compared to the remainder of the Denver Metro area." In 2018, Metropolitan State University of Denver declined to further participate in the Downwinders' health survey. In January 2019, activist groups questioning the contamination risk assessment for the wildlife refuge filed a lawsuit to unseal documents from the grand jury investigation. In response to concerned citizens reports about a breast cancer cluster in young women, CDPHE's Central Cancer Registry also examined the incidence of breast cancer in young women in communities around Rocky Flats. The Cancer Registry maintains a statewide database of all cancers diagnosed in Colorado residents (with some skin cancer exceptions). Hospitals, physicians, and laboratories are required by law to report medically-confirmed cancer data to CDPHE. In October 2019, CDPHE shared the Cancer Registry's findings. The Cancer Registry concluded, based on an analysis of the data, that "no increased incidence of breast cancer was found in young women in communities around Rocky Flats." CDPHE, 2019 analysis of breast cancers in young women around Rocky Flats, https://drive.google.com/open?id=17GNMv32QsAOy-I_z8u23Q9K2y_fAdvDL


See also

* Atomic Energy Act * Cold War *
Manhattan Project The Manhattan Project was a research and development undertaking during World War II that produced the first nuclear weapons. It was led by the United States with the support of the United Kingdom and Canada. From 1942 to 1946, the project w ...
* Price-Anderson Act *
Radioactive contamination from the Rocky Flats Plant The Rocky Flats Plant, a former U.S. nuclear weapons production facility located about 15 miles northwest of Denver, caused radioactive (primarily plutonium, americium, and uranium) contamination within and outside its boundaries. The contamination ...
*
Timeline of nuclear weapons development This timeline of nuclear weapons development is a chronological catalog of the evolution of nuclear weapons rooting from the development of the science surrounding nuclear fission and nuclear fusion. In addition to the scientific advancements, thi ...


Notes


External links


U.S. Department of Energy, Legacy Management, Rocky Flats

U.S. Environmental Protection Agency, Rocky Flats

U.S. Fish & Wildlife Service, Rocky Flats Wildlife Refuge

Colorado Department of Public Health & Environment (CDPHE), Rocky Flats

Kristen Iversen

Rocky Flats History


*


Rocky Flats Cold War Museum

RockyFlatsFacts

Rocky Flats Collection at University of Colorado Boulder

University of Colorado Boulder Libraries
resources
''Full Body Burden
', forthcoming documentary


Further reading

* ''Doom with a View: Historical and Cultural Contexts of the Rocky Flats Nuclear Weapons Plant'' by Kristen Iversen (Chicago Review Press, 2020) * ''Making a Real Killing: Rocky Flats and the Nuclear West'' by Len Ackland (University of New Mexico Press, 2002)
Annotated bibliography on Rocky Flats from the Alsos Digital Library for Nuclear Issues
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