Photo from Dale Chadwick

ihis case study presents the story of the cleanup and site reuse
successes achieved at the Kennecott Utah Copper Corporation
(Kennecott1) mining operations in Salt Lake County, Utah. It can
be used as a resource for mining companies, the federal government,
state governments, and other interested stakeholders. The three main
lessons that can be learned from this case study are:

•	ITow various regulatory agencies and Kennecott developed strategies
for cooperating with one another to clean up mining wastes at the
site;

•	ITow cleaning up the site without listing it on the Superfund National
Priorities Tist (NPT) resulted in significant environmental, social,
regulatory, and economic benefits; and

•	How Kennecott was able not only to financially survive the cleanup
costs, but to create an entirely new economic future.

• Mining operations at Kennecott began
in 1863.

• The Bingham Canyon Mine measures
2.5 miles across and 0.75 miles deep
and has yielded 17 million tons of
copper during its operational life.

• In 1995, EPA, Utah, and Kennecott
signed a Memorandum of Understand-
ing outlining the scope of the cleanup
work and providing a unique framework
for addressing mining contamination.

The name "Kennecott" has been used by various entities, some of which are
associated with mining, milling, and smelting activities in the Salt Lake Valley
and others which are not. In this document "Kennecott" refers to the Kennecott
Utah Copper Corporation.

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Kennecott Mining Site

Transformation through Collaboration at a Superfund Alternative Site

Introduction

For more than a century, people have
mined the Oquirrh Mountains for
precious metals. Through the decades, no
mine operation has been more prolific
than that of Kennecott. It has produced
millions of tons of gold, silver, and
copper. The main pit has generated so
much valuable metal that it has been
described as the "richest hole on earth."
At one time, the mine operated 24 hours a
day, 365 days a year and employed more
than 8,000 miners. This massive
operation created pits thousands of feet
deep. The many decades of mining
activity, much of which predated
Kennecott's interest in the area, resulted
in wide-spread mining wastes that
contaminated the land and the ground
water. Yet because of the vision and
perseverance of the many stakeholders,
the story of this mining site is one of
transformation and rejuvenation.

In the early 1990s, Kennecott, the last
remaining mining company in the area,
was the subject of lawsuits and threatened
regulatory actions. Today, Kennecott is
an example of how a cooperative, creative
approach can lead to efficient clean up of
the environment and new opportunities
for the company. At the Kennecott site,
former adversaries are now collaborating
on environmental cleanups, making
possible the redevelopment of large
portions of the site. This case study
describes the evolution from an
adversarial to a collaborative approach
and the role of site redevelopment. The
lessons learned from the Kennecott	Photo 1: Aerial view of Kennecott land holdings and surrounding area.

experience may be useful to owners and operators of active and inactive mines and may provide the impetus for
cleanup and reuse of the hundreds of thousands of acres of mine lands across the country.

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Kennecott Mining Site

Transformation through Collaboration at a Superfund Alternative Site

Background

For more than 140 years, mining has been a way of life in and around Bingham Canyon, which is southwest of
Salt Lake City. Prospectors first walked into the canyon in 1863 in search of ore, but it was ten years before
lead, silver, zinc, and gold deposits were worked.

Copper reserves also were found, but initially were considered too sparse to be mined economically. In 1896,
though, deposits of copper were found in the Highland Boy gold mine. That discovery was the precursor to the
most significant mining era in Bingham Canyon: the mining of low-grade copper ore and the advent of open-pit
mining.

As the years passed, the landscape of Bingham Canyon changed significantly due to mining operations
conducted by numerous companies. In 1936, Kennecott Copper bought Utah Copper. The mountain that Utah
Copper first mined is today a massive open pit that is one of the world's largest copper producers, one with
notable related productions of gold, silver, and molybdenum. As the mine operations grew, so did mine-related
contamination of the landscape. During the early years between 1863 and 1920s, Bingham Canyon was not
surrounded by communities and environmental stewardship was not being addressed by industry or the
government. Waste rock piles that contained concentrations of minerals covered much of the landscape.

Runoff from rain and snowfall passed through them, carrying away dissolved solids, sulfates, and heavy metals,
and contaminating the streams, soils, and ground water.

Kennecott's current land holdings are twice the size of the District of Columbia. They include most of the
historic mining area in the Oquirrh Mountains, which form the western boundary of the Salt Lake Valley. The
site is divided into two segments: the South Zone where ore is mined and concentrated, and the North Zone,
where ore is smelted and refined. Ore and tailings mined in the South Zone are sent to the North Zone, 20 miles
away, by slurry pipeline.

Kennecott's South Zone is 25 miles southwest of Salt Lake City. Mining activities at the South Zone began in
the 1860s and continue to the present at the large Bingham Canyon open-pit mine. Mining operations in the
South Zone produced lead, zinc, silver, copper, molybdenum, and gold ore.

Contaminants found in the South Zone are arsenic, cadmium, chromium, copper, lead, nickel, selenium, silver,
acids, sulfate, and zinc. Before the threat of these contaminants was recognized, homes were built on former
flood plains contaminated with high levels of lead and arsenic. Drinking water wells contaminated with
cadmium, chromium, sulfate, and arsenic had to be shut down in the 1980s. Mining wastes continued to leach
acid waters and created a 72-square-mile plume of sulfate-contaminated ground water, which put a burden on
communities in Salt Lake County. Even though many communities currently rely on surface water for
municipal water supplies, they need new sources of drinking water to support rapidly growing populations and
cannot use ground water as a municipal water supply if they are above or adjacent to the plume.

Kennecott's North Zone is at the north end of the Oquirrh Mountains, on the south shore of the Great Salt Lake.
Metal ore was smelted and processed there for almost a century, resulting in contaminated sludge, soils, surface
water, and ground water. Lead, arsenic, and selenium are the main contaminants of concern. A plume of
selenium-contaminated ground water enters nearby wetlands through springs and seeps are particularly
troublesome because native birds are sensitive to selenium. Kennecott, as the primary landowner and only
responsible party at the North Zone, is liable for the area's cleanup.

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Kennecott Mining Site

Transformation through Collaboration at a Superfund Alternative Site

The United States government, through the
Environmental Protection Agency (EPA), works to
protect the environment through its laws and
policies. Hallmark legislation adopted to advance
this goal includes the Comprehensive
Environmental Response, Compensation and
Liability Act (CERCLA). The 1980 legislation
(amended in 1986) is better known as "Superfund."

Through the Superfund program, EPA can place
contaminated landscapes on the NPL for cleanup,
and hold companies responsible for the
contamination and liable for that cleanup. Under
Superfund, EPA has the authority to respond to,
and oversee cleanup of a wide array of hazardous

waste spills or releases. While EPA requires that
private parties responsible for the wastes conduct
their cleanup, when responsible parties cannot be found or cannot afford to pay for the cleanup, costs may be
covered by Superfund. Cleanups conducted under Superfund can be costly and time-intensive depending on the
complexity and extent of contamination. Under certain circumstances, EPA and industry may negotiate to
conduct cleanups outside of the traditional Superfund NPL process.

Although the Kennecott site was never placed on the NPL, its cleanup can be considered a major
accomplishment of the Superfund program and law. The threat of NPL listing served as a potent tool to
motivate Kennecott and other parties to clean up the site voluntarily. The desire to avoid Superfund's
enforcement and liability provisions, a changed corporate environmental perspective, and the discovery of new
real estate opportunities have come together to drive the cleanup of extensive contamination over thousands of
acres in both zones and the reuse of significant portions of that land.

Acronyms

ARCO - Atlantic Richfield Company

CERCLA - Comprehensive Environmental Response, Compensation and Liability Act

EPA - Environmental Protection Agency

EPCRA - Emergency Planning and Community Right-to-Know Act

MOLJ - Memorandum of Understanding

NPL - National Priorities List

NRD - Natural Resources Damage

PRP - Potential Responsible Party

RCRA - Resource and Recovery Act

TSCA - Toxic Substances Control Act

UDEQ - Utah Department of Environmental Quality

UDNR - Utah Department of Natural Resources

USFWS - U.S. Fish and Wildlife Service

USGS - U.S. Geological Survey

Photo 2: Bingham Creek Tailings during excavation

Source: Kennecott Utah Copper Corp.

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Transformation through Collaboration at a Superfund Alternative Site

The Journey from Contention to
Collaboration: Moving Toward a
Common Goal

With the passage of new federal environmental
legislation in the 1970s, state and federal
agencies responsible for ensuring cleanup and
oversight of mining wastes became interested in
the Kennecott mining operation. By 1983, EPA
and Utah's regulatory agencies had launched an
investigation of the site. Gradually, over the
course of nearly 20 years, Kennecott's posture
toward these agencies evolved to one of
cooperation. During this transition, state and
federal agencies worked together to ensure that
the cleanup accomplished their shared goals of
protecting human health and the environment in the present and the future. At the same time, Kennecott
managers believed that by performing the cleanup themselves and avoiding NPL listing, they saved a great deal
of time and money, and helped create a better future for the Kennecott Utah Copper Corporation - a future of
valuable land holdings with reuse potential.

Earlv Regulatory Efforts:

Under the auspices of the Superfund
program, the state of Utah conducted
several preliminary assessments of the
Kennecott properties in the early to mid-
1980s. These initial studies prompted
Utah's Department of Environmental
Quality to file a Natural Resources Damage
(NRD) claim in 1986 under a separate
Superfund provision. The NRD provision
allows states to recover damages from
entities that impair or destroy state
resources. In this case, the state of Utah
sued Kennecott for ground water damage in
the southwest Jordan Valley area caused by
leach water at the Bingham Canyon mine
and wastewater disposal in the South Jordan
evaporation ponds, leading to the
designation of Zone A and B ground water plumes.

In 1990, the state of Utah and Kennecott proposed to settle the NRD claim with $12 million in federal court,
with no action required to address the ground water contamination. The Jordan Valley Water Conservancy
District did not believe the settlement was in the public's interest and asked the court to intervene. The court
rejected the settlement in 1991 and the judge ruled that the information on the ground water plume was
insufficient to support the proposed settlement. The negotiations for the NRD claim were put on hold while
Kennecott conducted a comprehensive study of the ground water problem.

Photo 3: Lark Tailings of Kennecott prior to reclamation

Source: Kennecott Utah Copper Corp.

Photo -I: Lark Tailings (State Motorcycle Park) after soil cap and seeding.

Source: Kennecott Utah Copper Corp.

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Transformation through Collaboration at a Superfund Alternative Site

At the same time Kennecott was working on the ground water study, the EPA Inspector General recommended
that EPA consider listing the Kennecott site on the NPL, in part because of exemptions for mining in the state
solid waste and hazardous waste laws. The state objected to involving the Superfund program and hoped,
instead, to regulate Kennecott's discharges through existing state permitting programs.

Banding Together: The State of Utah and U.S. EPA Join Forces to Motivate Kennecott

In 1990, during the site assessment conducted under CERCLA, state investigators found a strip of
contamination along Bingham Creek and its historic floodplain. The creek ran through heavily populated areas.
Entire neighborhoods had been built on the former flood plain land. Kennecott denied any association with the
Bingham Creek contamination. After a week of intense public pressure, the state requested EPA assistance in
conducting an emergency response action under Superfund to address the contamination. After the federal
government became involved, the state agreed that CERCLA provided the regulatory tool it needed to get
Kennecott's attention.

Kennecott executives launched an independent investigation to assess the contamination and its implications for
the company. Kennecott hired an outside consultant to do the work. When they completed their independent
assessment in early 1991, Kennecott executives were surprised to learn that the investigation revealed extensive
contamination that would require a shift in corporate perspective. Kennecott officials realized that to maintain
public support, they would not only have to cooperate with state and federal regulatory agencies, but would also
have to be candid with the public about the environmental contamination. Another incentive for Kennecott to
cooperate with regulatory agencies was tied to the impending 2002 Olympic Winter Games. The CEO of
Kennecott was also the head of the Salt Lake City Olympic bid committee. He feared that if the site were put
on the Superfund NPL, it would endanger the Olympic bid. He also told EPA that he was concerned that NPL
listing might affect the cost of capital needed to finance the modernization of the mining operation. These
factors together sent Kennecott executives back to the negotiating table, this time with a cleanup proposal,
characterization reports, and work plans. Kennecott managers now had new technical and legal negotiators, and
their proposal promised an accelerated cleanup in exchange for assurance that Kennecott would not be placed
on the NPL.

Coming to an Agreement

To streamline communications and organize work among the various state and federal agencies involved with
the cleanup, EPA's Remedial Project Manager for Kennecott formed two Technical Review Committees. The
committees, established in 1992, consisted of representatives of the Utah Department of Environmental Quality
(UDEQ); the Utah Department of Natural Resources (UDNR); the U.S. Fish and Wildlife Service (USFWS);
the U.S. Geological Survey (USGS); EPA; Kennecott; citizens groups; local officials; and academics. These
committees served in an advisory capacity to EPA as the Agency worked through complex issues with
Kennecott managers and the state of Utah to arrive at a creative, consensual solution.

While Kennecott, EPA, and the state of Utah soon reached an agreement in principle for how the contaminated
lands could best be cleaned up, an impasse over legal and administrative terms led EPA move forward with the
NPL listing. In the face of staunch opposition to the listing, and recognizing Kennecott's good faith continuing
cleanup actions, EPA delayed the listing to continue discussions with Kennecott and the state, eventually
leading to a Memorandum of Understanding (MOU) to address the cleanup. Under this MOU, EPA agreed not
to finalize the NPL listing if Kennecott completed work set out in the MOU. If the work was not done
satisfactorily, EPA would then move ahead with the listing.

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Transformation through Collaboration at a Superfund Alternative Site

Stage One: The Agreement in Principle

In the summer of 1991, negotiations began on a site-wide cleanup consent decree, which is a mechanism
frequently used by EPA at Superfund sites and is issued by a court to document a voluntary agreement between
EPA and parties responsible for cleanup. The consent decree negotiations proceeded generally along two tracks
- legal and technical. The technical negotiators were to develop a work plan, while the attorneys for the parties
worked on the legal language. By 1992, it was clear that the great extent of the contamination would require
broad remedial measures, which could best be achieved with extensive coordination among many state and
federal agencies.

The state and EPA each formed its own internal
committee. Earlier, at a critical point in the
negotiations with Kennecott, the EPA Superfund
staff members had been taken off guard when their
colleagues in other EPA offices fined Kennecott $2
million for violations of the Emergency Planning and
Community Right-to-Know Act (EPCRA) and the
Toxic Substances Control Act (TSCA). This
unexpected censure strained Kennecott's relationship
with EPA and underscored the need for intra-agency
coordination. EPA's Deputy Regional Administrator
assembled a team to assure coordination among
federal agencies and prevent miscommunication. He
selected staff from the EPA offices responsible for
administration of the Resource Conservation and
Recovery Act (RCRA), TSCA, and EPCRA laws to
address, in a comprehensive way, contamination in
the water, soil, and air.

Around 2002, the UDEQ Project Manager convened
a round table of various state agencies with an
interest in the site. This committee allowed state
agencies to pool their expertise and knowledge and
to articulate the state's interests in a coherent way.

Working through the committee, the agencies were
able to avoid duplicative oversight, saving time and
resources.

Persistent efforts begun in 1991 among state, federal,
and local agencies, as well as Kennecott and local
stakeholders finally resulted in the development of a
site-wide streamlined cleanup approach that met with
the approval of all involved parties. Because the
negotiations for the work plan began long before
anyone knew the precise nature of the contaminants or which remedies would be necessary, the technical
negotiators decided to develop a strategy for characterizing the site and deciding how remedies would be
chosen.

History of the Kennecott Site

1860s and
1870s

Initial exploration and mining activities by
various companies, including Kennecott and
ARCO

1906

Large-scale open-pit mining begins in
Bingham Canyon

1920s

Early miners notice waste rock from the
mines draining blue-colored water with high
copper content.

1983

EPA and Utah begin investigating Kennecott

1986

State of Utah files Natural Resource
Damages (NRD) claim against Kennecott

1991

Outside consultant presents Kennecott with
new, independent environmental assessment
that shocked Kennecott executives

1991

Negotiations begin on the consent decree

1992

Technical Review Committees formed

1993

Negotiations fail on site-wide consent decree

1994

EPA proposes NPL listing for Kennecott

1995

Kennecott required to perform RI/FS and
initiate minimum extraction of acid plume.
Also required to establish a trust fund for
addressing ground water contamination.

September
1995

Three parties sign an MOU outlining the
scope of the cleanup work

1999

Development of master plan for Daybreak
community begins

2001

Kennecott Land Company was established to
focus on developing Kennecott Utah Copper
Corporation's land.

2003

Construction begins at Daybreak

November
2004

First residents move into Daybreak homes

August
2005

Daybreak Elementary, a school and
neighborhood learning and community
center, opens.

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Transformation through Collaboration at a Superfund Alternative Site

Negotiators made several important decisions: 1) to develop standard sampling and analysis procedures to be
used site wide; 2) to use standard remedies based on characterization results; 3) to have a committee structure
that would bring local governments and citizens into the process; and 4) to develop a site-wide risk assessment
which would be a function of land use and habitat. The negotiation team designed the process to prevent, to the
extent possible, redundant studies, duplications in oversight responsibilities, and interference with on-going
mining operations.

The group created a decision matrix based on the concentration, leachability, and the acid- generating potential
of the wastes. All wastes were tested on those criteria and the remedies for each site were developed based on
those site-specific criteria. This strategy provided consistency in the various cleanup approaches, and resulted
in fewer disputes on remedy decisions. This progress in negotiations prompted Kennecott to continue its
cleanup efforts and to begin new good-faith cleanup actions. This remedy strategy developed at Kennecott was
later refined by EPA and adopted as a program called "presumptive remedies."

Negotiators still needed to decide how much of the cleanup would be Kennecott's financial responsibility. The
ground water contamination in the South Zone involved the highest costs. Even the least expensive effective
remedies for ground water would cost approximately $400 million. When Kennecott, UDEQ, and EPA thought
they had resolved these issues, they announced that they had reached an "agreement in principle." This
triggered final negotiations which should have culminated in a consent decree. But in December 1993,
Kennecott walked away from the negotiations. Kennecott feared that the consent decree amounted to a "blank
check," and that the agencies would get to fill in the blank. The extent of contamination was uncertain, the
action levels and the necessary remedies were unclear, and the costs of the cleanups were therefore impossible
to estimate. Because of this uncertainty, no one could predict either remediation or financial assurance costs.

Stage Two: Working Through the Threat of NPL Listing

The failure of the negotiations led EPA to revive the NPL listing process which was deferred for over a year.
EPA proposed two Kennecott areas (Kennecott North Zone and Kennecott South Zone) for listing on the NPL
in mid-January 1994. Despite the collapse of the agreement, Kennecott's commitment to cleanup continued.
And although Kennecott's managers responded to the listing threat by opposing it, they continued to pursue the
cleanup program.

EPA began characterization of potential problems in residential communities near Kennecott and started a
human health risk assessment. UDEQ started characterizing the watersheds potentially affected by Kennecott
discharges. Meanwhile, Kennecott began a cleanup at the South Jordan Evaporation Pond, started evaluating
cleanup alternatives near the refinery and smelter, initiated an ecological risk assessment for the various habitats
at the site, and began a remedial investigation and feasibility study for the ground water issues at the South
Zone.

EPA, the state of Utah, and Kennecott were able to move forward with cleanup because, although the final
consent decree was never signed, they all agreed that the goals, approaches, and decision-making protocols
developed for the agreement in principle were sound, regardless of the site's NPL status. Because the cleanup
was progressing, EPA felt no urgency to push the NPL listing process forward. The listing remained in limbo
for another year and a half until 1995 when EPA agreed not to take further action toward placing Kennecott on
the NPL since the parties established a memorandum of understanding.

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Transformation through Collaboration at a Superfund Alternative Site

Stage Three: The Memorandum of Understanding

In an atmosphere of intense political involvement, EPA began
considering how to end the stalemate on NPL listing. After
the site-wide consent decree failed, the agency decided to deal
with enforcement on a smaller scale. Instead of one over-
arching consent decree, regulators decided to develop
individual consent decrees to address the different portions of
the site. In a memorandum of understanding, Kennecott
agreed to this new approach. This new strategy eliminated Kennecott's concern that an over-arching consent
decree would require unknown remedies at unknown costs. The individual consent decrees would only go into
effect after the parties had come to agreement on the remedies and work to be performed. The MOU covered
only cleanups that had already been designed and agreed to plus the necessary studies to address unassessed
portions of the cleanup. The MOU approach retained the best parts of the failed consent decree negotiations,
such as generic site-wide ecological and human health risk assessments, generic remedies, generic quality
assurance protocols, standard characterization methods, standard community participation, and flexible
schedules to fit with operational and funding issues at Kennecott. In addition, this cleanup strategy could leave
Kennecott's land holdings in prime condition for reuse. Reuse of the land was an important issue for Kennecott
with a lot at stake - the future of a company that has land holdings of almost 93,000 acres.

It became clear that because Kennecott is an operating facility, long-term Superfund actions could be monitored
using state and federal permits. This resulted in state oversight of long-term operations and maintenance.

Cleanup has already taken place over hundreds of acres in both zones. Kennecott, and to a lesser extent, the
Atlantic Richfield Company (ARCO) conducted cleanup activities at the South Zone with oversight by state and
federal agencies. ARCO was participating under a unilateral order, which is an enforcement mechanism EPA
uses when it cannot reach a voluntary agreement with a party liable for cleanup. Kennecott completed removal
of more than 25 million tons of lead- and arsenic-contaminated mining wastes in 1999. The long-term
remediation of contaminated ground water at the South Zone was also underway. Removal of the North Zone's
surface wastes was completed in 2001. Sludge from the refinery and smelter were placed in an on-site
repository, along with contaminated soils found during the modernization of the smelter and refinery. To date,
Kennecott has spent more than $370 million on cleanup and source control. Some Kennecott managers have
said that they believe that costs would have been three times as high had the site been listed on the NPL.

Finding the Silver Lining: Capitalizing on Cleanups

In 1989, around the time Kennecott managers realized they would need to
clean up almost a century's worth of contamination on their lands, the
company was purchased by London-based RTZ Corporation. RTZ later
became Rio Tinto, which remains one of the world's largest international
mining companies. By 1994, Rio Tinto's management began thinking about
sustainable development and being a good neighbor. When Kennecott staff
realized that the company was responsible for the largest remaining contiguous
land holding in the state, Rio Tinto provided resources and management
support to create a new affiliated company that would manage those assets.

This section of the case study focuses on how the cleaned up land at the Kennecott site led to a whole new
vision for the future and what steps were taken to make that vision a reality.

Success Under the Three-Party Agreement:

¦	cleanups within a shortened time frame;

¦	voluntary cleanup for areas of concern;

¦	completed source control measures;

¦	deferment of Superfund listing;

¦	recognition of state permitting authority; and

¦	use of permits for ongoing operations.

"Rio Tinto businesses, projects,
operations and products should
contribute constructively to the
global transition to sustainable
development...In practice, this
depends on the active awareness
of and support for Rio Tinto's
principles and policies by each of
us as individuals."

- Source: http://www.riotinto.com

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Transformation through Collaboration at a Superfund Alternative Site

An Interest Kindles: Preliminary Reuse Thoughts

Although reuse planning did not begin in earnest for the Kennecott land holdings until after 2000, two events in
the early 1990s prompted Kennecott managers to begin thinking about reuse possibilities. First, in 1993,
Kennecott began cleaning up 50 years of sludge spread over several hundred acres on the South Jordan
Evaporation Ponds. Cleanup consisted of consolidating all the sludge onto one portion of the site at a cost of
$15 million. Kennecott officials recognized that as a result of this exercise they had a large, and potentially
reusable, land holding in the middle of the City of South Jordan, a rapidly growing suburb in Salt Lake County.
In 1995, Kennecott managers hired a top planning firm to evaluate the potential for future use of the reclaimed
evaporation ponds. A general land development concept was outlined. While reuse did not occur at that time,
several years later the study helped motivate Rio Tinto managers to consider reuse over all of Kennecott's land
holdings, which make up 50 percent of the developable land left in the county.

The second event began in 1994 when Rio Tinto asked all of its operations worldwide, including Kennecott, to
develop closure plans. Development of this mine-closure plan raised the question, "What happens after a
mining project ends?" It prompted Kennecott to consider not only the present mining activities, but also
subsequent cleanup, and ultimately, reuse.

Nevertheless, the land could not be redeveloped until it
was clean, and Kennecott was looking at hundreds of
millions of dollars in cleanup costs. By the late 1990s,
declining copper prices were negatively affecting
Kennecott's mining income. However, in the course of
updating the mine closure plan, Kennecott executives
recognized that cleaning up mining wastes restored the
land, which could be put to beneficial use and create
new sources of revenue.

Although rising copper prices in the late 1990s
ameliorated Kennecott's financial difficulties, it became
critical to keep the mining operations going in order to
pay for the environmental cleanup. While Kennecott
officials could have shaved some of the costs of their
cleanup by cleaning only to the minimum standards
required by the federal government, they decided to
remediate portions of the site in accordance with more
rigorous guidelines. Kennecott chose to clean much of
the contaminated land holdings to the most stringent
land use standard - one that would support residential
use.

In addition to helping pay for cleanup, the continuing
mining operations provided infrastructure for water
management and waste management that are not usually

available at closed mines. This allowed the cleanups to use the existing infrastructure at much-reduced costs.
For example, Kennecott uses the tailings slurry line as a receptacle for acid waters from a ground water
remediation project. The tailings neutralize the acid in the water, eliminating the need to build and operate a
separate treatment facility.

Kennecott Companies Earn ISO Certification

In January 2004 Kennecott Utah Copper earned the
International Standards Organization (ISO) 14001
certification for its environmental management system
(EMS) and passed a third-party enviromnental audit by
NSF-International Strategic Registrations. The ISO 14001
certification signifies that a company has met rigorous
international enviromnental criteria. As part of its ongoing
enviromnental efforts, Kennecott Utah Copper is continuing
to incorporate its enviromnental management system into its
day-to-day operations through training, communication, and
internal audits. Kennecott maintains its ISO certification
through enviromnental cleanup and conservation activities
such as reclaiming 100 acres of mining waste disposal areas
and reducing the amount of fuel spilled during refueling.

In addition, Kennecott Land Company (Kennecott Land)
achieved ISO 14001 certification in 2005, becoming the
first U.S. community developer to accomplish that goal.
Kennecott Land's leadership has backed up its commitment
to sustainable development principles by establishing an
EMS and complying with all relevant enviromnental
requirements. It has also pledged to continue improving its
enviromnental performance. Kennecott Land's first
development. Daybreak, reflects this commitment to
enviromnental sustainability by incorporating more than
1,000 acres of green space, retaining all storm water onsite,
recycling 75 percent of construction waste, and meeting
EPA's Energy Star standards for energy efficiency.

Sources: Lcmddevelopmenttoday.com; kennecott.com;

deseretnews.com; and Kennecott Utah Copper2004 Sustainable

Development Report

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Transformation through Collaboration at a Superfund Alternative Site

Recognizing Opportunity: A Reuse Champion Emerges

By 1996, Kennecott management realized that the substantial growth expected in the Salt Lake Valley over the
next 30 years meant that Kennecott's land holdings could serve the company well beyond the life expectancy of
the mine. Kennecott, however, was a mining company, not a land development company. The decision to
seriously consider the reuse of the site would need to come from Kennecott's parent company, Rio Tinto. Rio
Tinto was interested in promoting sustainable development and agreed to provide Kennecott with the financial
backing needed to assess the potential of its land holdings.

In 1999, a team of experts began a detailed evaluation of
the potential for land development on Kennecott's
holdings. An internationally recognized land planner
produced a general plan for the property. In early 2000,
this plan was submitted for outside review, including the
Rio Tinto Technical and Business Evaluation Groups. In
2001, Rio Tinto established Kennecott Land Company
(Kennecott Land) to protect and develop non-mining land.

With nearly 93,000 acres of land in the Oquirrh Mountains
and foothills of the western Salt Lake Valley and Tooele
County, there was a lot of potential for success. Realizing
the great potential of the land, Rio Tinto appointed an
independent city planning and urban design consultant to
evaluate the business viability of the plan.

This evaluation showed that the South Jordan evaporation
ponds site, which had been remediated several years
earlier, presented an excellent opportunity for
redevelopment. Kennecott recognized that for
redevelopment of that area to be successful, it would have
to be a collaborative effort with the city of South Jordan.

According to South Jordan city manager, the planning and
development process has been a partnership from the
beginning. Kennecott and the city of South Jordan have
worked closely together to ensure that the city's interests
are considered and that community residents had input.

Though there has been some give and take, the partnership
is a successful one. "It's all based on trust," said the city
manager, "and that trust has not been violated." The
results of this collaboration were captured in a
groundbreaking design. After years of legwork and
planning, the concept of a sustainable and new-urbanist
community was born. The community, ultimately named Daybreak, is unique to that part of Utah, but the city
of South Jordan embraced it without reservation. "The overall concept was never questioned," the city manager
stated.

During 2003, a cooperative approach was initiated by Kennecott Land and Kennecott Utah Copper to address
the removal of gypsum sludge that was consolidated and capped during Kennecott's cleanup of the South Jordan
Evaporation Ponds site in 1994-95. The consolidated gypsum sludge was located in an area that Kennecott
Land wanted to develop for recreational and residential purposes, and its removal was necessary to prevent the

Daybreak

Where once seepage ponds held 50 years worth of
mining sludge, Kennecott Land Company is
developing a 4,126-acre, pedestrian-friendly
community. The development, called Daybreak, is
in the city of South Jordan at the base of the
Oquirrh Mountains. The creators of Daybreak
designed it to be a model of environmentally and
socially responsible growth. In constructing the
13,600 homes and 9.1 million square feet of
commercial buildings, Kennecott Land is adhering
to EPA Energy Star efficiency guidelines.

According to a Kennecott Land spokesman,
Daybreak homes are 30 percent more efficient than
state building codes require. The community also
features 1,250 acres of parks, a recreational lake,
pedestrian-friendly town centers, shops, churches,
schools, and mass transit. Daybreak's cutting-edge
design has begun to attract considerable attention.
In June 2003, the development won the Envision
Utah Governor's Quality Growth Award. The
award recognizes development projects and creative
communities that "keep Utah beautiful, prosperous
and neighborly for future generations." In October
2004, a group of business and civic leaders from
Sacramento toured Daybreak to get ideas about how
best to address rapid growth. In a letter to
participants, organizers of the trip wrote, "It is
apparent that civic leaders of the Salt Lake region
have a commitment to the success of their
community that, in our experience, is unparalleled."

- Source: Deseret News 11/8/04

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Kennecott Mining Site

Transformation through Collaboration at a Superfund Alternative Site

remobilization of sulfate to the underlying ground water aquifer. Kennecott Land proposed a work plan to EPA
to re-use the cap soil and remove consolidated gypsum sludge to Kennecott Utah Copper's repository space.
Verification of the successful completion of the removal action was proposed to EPA under a post removal
sampling plan. To date the removal work is being continued by Kennecott Land in its efforts to revitalize this
area once used for industrial purposes.

Kennecott Today: The Kennecott Land Company

Today, the Kennecott Land Company is a separate corporate entity. The purpose of the company is to act as a
"master developer" to design, plan, entitle, develop infrastructure, finance, and prepare design guidelines for
communities that will be built on Kennecott properties. Liability for the reuse of Kennecott land is not the deal-
breaker it frequently is for other mining sites. Kennecott manages its liability by cleaning to residential
standards properties that will be sold to others. In addition, Kennecott only works with developers who are
willing to follow its vision of sustainability and safety. Kennecott Land plans to maintain ownership of its
properties where waste is safely left in place and to lease them to appropriate parties. This will prevent
activities that could jeopardize human health or the environment.

With South Jordan's approval of a development agreement, funding from Rio Tinto secured, and the hiring of a
senior management team, the project evolved from vision and planning to implementation. This project
represents a new beginning for Kennecott - one that ensures its long-term presence and viability in the region.

Lessons Learned from the Kennecott Experience

The cleanup process Kennecott used was unprecedented.

Cleanup of the Kennecott site took place because the dual
threats of CERCLA litigation and NPL listing-along with a
new corporate perspective-motivated the company to
conduct a proactive environmental cleanup. Together, EPA,
the state, and Kennecott developed a process whereby EPA
had control and oversight of the cleanup, but without the need
to list the site on NPL. This approach, which years later came to be known as the "Superfund Alternative Site"
approach, yielded many environmental, social, regulatory, and economic benefits that might not have been
realized using the traditional enforcement tactics. For example, cleanup activities started without any legal
action. This meant that dangers to human health and the environment could be alleviated years before they
might have been had Kennecott chosen to dispute the cleanup in court. Furthermore, when Kennecott
performed cleanups, in many instances it went further than the cleanup levels called for by the regulatory
agencies. Kennecott cleaned many properties to residential standards. Although the process was not always
easy, the end result was a new remedial approach that accomplished EPA's goal of protecting human health and
environment.

Common-sense, but costly source control measures, such as cleaning up and replacing older reservoirs with
state-of-the-art lined reservoirs and discontinuing the use of leach piles, stopped the vast majority of releases
that posed the greatest threats to human health and the environment through ground water contamination. The
company also financed the construction and operation of two reverse osmosis plants to provide clean water at
market price to the residents of South Jordan, West Jordan, Herriman, and Riverton. The plants are a
component of the settlement reached under the Natural Resources Damage claim filed by the state in 1986 to
address one of the largest ground water contamination plumes in the country.

"Kennecott often cleaned to unrestricted land
use standards rather than using the official
cleanup requirements ... They found it cost-
effective to go after it all rather than remobilize
at a later date."

- Jon Callender, Kennecott

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Keeping the site off the NPL offered a number of advantages including social and regulatory benefits. Some
feared that if the site had been listed on the NPL, the company might have been forced to temporarily or
permanently shut down operations. The alternative cleanup process helped ensure continued mining operations
that provided an ongoing source of funding for cleanup. Ultimately the entire community benefited; local
workers kept their jobs and new home ownership opportunities were created in the area.

The regulatory benefits of cleaning up the site without listing on the NPL were not easily gained. Not everyone
at EPA supported the decision to hold NPL listing in abeyance. In fact, many at EPA thought the process would
undermine the agency's ability to list other sites and to force responsible parties to pay for environmental
cleanups. In addition, many did not think that EPA would have the leverage it needed to oversee cleanups that
were protective of human health and the environment if the site were not on the NPL. To assuage some of these
concerns and keep the process at Kennecott moving forward, the cleanup was designated as a "pilot" to avoid
setting any precedent.

Throughout the process, the
potentially responsible parties
(PRPs) and some members of the
community continued to express
concerns about NPL listing.

Cri tics of the NPL process have
theorized that a Superfund NPL
designation has negative effects
on neighboring communities and
can reduce local land values.

Regardless of the merit of these
criticisms, in unique cases EPA
has provided flexibility in the
cleanup process. Although the
decision to clean the site without

listing it was initially controversial, it led to an approach that has proven effective at motivating responsible
parties to clean up sites. There are now over 100 designated Superfund Alternative sites around the country,
including several mining sites and many site reuse success stories.

Additional regulatory benefits afforded by the approach used at Kennecott include faster cleanups without
litigation and improved relationships among EPA, state agencies, and the PRPs.

- Frank Joklik, Former CEO, Kennecott Utah Copper Corporation

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Kennecott Mining Site

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Lessons Learned

•	The threat of NPL listing may serve to motivate potentially responsible parties to
remediate contamination caused by their activities. In some cases, the threat of NPL listing
is enough to prompt firms responsible for site contamination to cooperate with EPA in
cleaning up the environment.

•	Cooperation with regulators and willingness to interact with community leaders
engenders goodwill. After an initial period of resistance, Kennecott managers worked with
regulatory agencies and followed through on the company's commitment to environmental
cleanup. This enabled Kennecott to maintain and perhaps even enhance its standing in the
community.

•	Under the correct circumstances, flexibility in the cleanup process can result in successful
and timely cleanups. Through its actions, Kennecott proved itself willing to with state and
federal agencies to address contamination. The agencies, in turn, introduced flexibility in
the regulatory process that allowed the cleanup to proceed as a Superfund Alternative site.
Because all parties ultimately worked together while adhering to their unique
responsibilities, the alternative cleanup process proved successful.

•	An open, transparent process engenders trust among stakeholders and reduces regulatory
overlap. Throughout the cleanup process, there were avenues for stakeholders to
communicate and express their concerns. Federal, state, and local government officials were
willing to think creatively and worked with Kennecott to develop a cleanup approach.

When there were overlapping authorities, agencies worked together to establish a lead
authority. This approach eliminated confusion and duplication. Because of this open and
cooperative process, when Kennecott moved forward with cleanups, there was little
opposition in the local community or among the regulatory agencies.

•	Alternative cleanup processes can save time and money. Kennecott managers believe that
by avoiding the costs of litigation often associated with NPL listing, and by using their own
infrastructure and equipment, they saved hundreds of millions of dollars and were able to
address contamination quickly.

•	Cleanups are an investment. Ultimately, the cleanup costs were an investment in the future
of Kennecott and in the future of the Salt Lake Valley. Because Kennecott cleaned much of
the site to residential standards, it was able to reuse the land and create new communities for
the growing population of the region. As a former Kennecott executive put it,
"Contaminated land is valuable. Kennecott ultimately converted a potentially big liability
into a whole new business with long-term value to shareholders."

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Non-NPL Approach Yields Benefits for Kennecott

Through 2004, Kennecott has paid more than $370 million to remediate its land holdings. The total cleanup
costs could have been much higher outside of the Superfund Alternative process, and in the end, the economic
investment Kennecott makes in the cleanup of its properties should see a substantial return.

Through the collaborati ve non-NPL approach,

Kennecott was able to avoid some legal costs,
so that more funding could go toward
remediation rather than litigation, and human-
health risks could be eliminated more quickly.

The former CEO for Kennecott concluded that
legal maneuvering would not change the cost
of cleanup and the longer the company waited
to start cleanup, the more it would cost in the
long run. The company's reputation also
benefited from its willingness to cooperate
with regulators and expedite the cleanups.

Kennecott also believes it may have saved
$100 million or more for a major
modernization project by avoiding NPL
listing. At the same time Kennecott was
confronting its responsibilities under
CERCLA, it was planning to launch a massive
modernization project, including building an entirely new smelter, a refurbished refinery, and upgraded
infrastructure. Kennecott believed that Superfund liabilities as verified by the site's appearance on the NPL
could raise the cost of capital by at least a percentage point. Because the company would need to borrow a
minimum of $1 billion for the modernization project, even a small interest rate increase would have been costly.
To avoid these costs, Kennecott sought to conduct its cleanup activities without listing the site on the NPL.

In addition, Kennecott had at its disposal infrastructure, staff, and other assets necessary to clean up its
properties. It was in the company's interest to work with the agencies to develop cleanup strategies rather than
to have an unknown strategy forced on it. By working with the regulatory agencies, Kennecott was able to plan
cleanups that allowed its mining operations to continue and even to be used to support the cleanup activities.
Some of the revenue generated from the mining operations paid for the cleanup of the properties.

In the end, the money saved by avoiding litigation and increased loan rates led to long-term economic viability
for the company. Additionally, the company's willingness to work with stakeholders to assess and solve
problems generated untold goodwill. Not only did Kennecott foster a positive relationship with EPA, the
quality of the cleanups went well beyond required standards. The transfer of remediated land holdings from
Kennecott Utah Copper Corporation to the Kennecott Land Company will secure a place for Kennecott in the
local community for decades to come.

Photo 6: Mining trucks traversmg Kennecott's Brigham Canyon Mine

Source: EPA

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Conclusions

The contamination in the Salt Lake Valley that is the legacy of over a hundred years of mining is enormous, as
is the amount Kennecott is spending to clean it up. Since the mid-1990s, Kennecott has demonstrated that
continued corporate success can be achieved while being open with the public and regulatory agencies about
contamination problems. Kennecott's decision to continue expensive assessment and cleanup activities after the
breakdown of negotiations on a consent decree demonstrated its commitment to cleanup. Kennecott's current
president says the corporate culture has evolved to the point that employees take as much pride in mending the
landscape in the wake of mining as they do in producing the metals for society's use. The willingness to try
new things (such as using tailings to neutralize acid and constructing reverse osmosis treatment plants to treat
contaminated ground water) turned out to have cost advantages for the company. But its most important and
innovative thinking may have been the decision to look outside of their standard mining company framework to
see the potential value of the post-mining uses of their lands and to tailor cleanups to support the most
advantageous future uses.

Meanwhile, the regulatory agencies also broke some new ground. Foremost, this site showed that alternative
cleanup approaches could succeed at sites where the PRPs have the funding available and the corporate
commitment to address contamination problems. By introducing flexibility in the regulatory process while
remaining committed to their mandated responsibilities, EPA and the state agencies played an active part in
ensuring the success of the cleanup. In addition, they improved communications by speaking to regulated
parties with a unified message and establishing intra- and interagency coordinating committees, as well as a
state-federal partnership. Finally, all agencies realized the importance of an open process, and established
technical review committees that allowed meaningful input from a wide range of stakeholders.

The city of South Jordan is just beginning to see the benefits as people start moving into homes in Daybreak and
financially important commercial projects loom on the horizon. The city is pleased with the process and
confident about the future. "The Daybreak project is like something Utah has never seen before. This project
can be a model for the nation," according to the city manager.

The Kennecott story is not over. There is still a lot of ground water cleanup to be done and difficult
negotiations remain. The tremendous potential from the new land development has just begun, but the last ten
years of progress give reason for optimism about the future.

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References

In addition to interviews with individuals associated with the Kennecott site, including Eva Hoffman (former
EPA RPM) and Rick Horst (South Jordon City Manager), the following references were used in
developing this case study:

ATSDR Division of Health Assessment and Consultation (1996). "Public Health Assessment for Kennecott
(North Zone), Magna, Salt Lake County, Utah." Available online at:
http://www.atsdr.cdc.gov/HAC/PHA/ken/ken_toc.html. Accessed May 2006.

ATSDR Division of Health Assessment and Consultation (undated). "Public Health Assessment for Kennecott
(South Zone), Copperton, Salt Lake County, Utah." Available online at:
http://www.atsdr.cdc.gov/HAC/PHA/kensouth/ksz_toc.html. Accessed May 2006.

Enviro Science Inquiry, Web site of Lehigh University. Available online at:

http://www.leo.lehigh.edU/envirosci/geology/geo/l/copperl/copperl.html. Accessed May 2006.

Kennecott Land Web site. Available online at: http://www.kennecottland.com. Accessed May 2006.

Kennecott Utah Copper Corporation (Spring 2003). "Managing Environmental Cleanup." Available online at:
http://www.kennecott.com/pdf/kuc_envir.pdf. Accessed May 2006.

Kennecott Utah Copper Web site. Available online at: http://www.kennecott.com. Accessed May 2006.

Smeath, Doug. "Daybreak Project is Rising Star." Deseret Morning News. 8 October 2004. Web edition

available online at http://deseretnews.eom/dn/print/l, 1442,595096882,00.html. Accessed May 2006.

Southwest Jordan Valley Groundwater Technical Review Committee. Meeting minutes. January 26, 2000.
Southwest Jordan Valley Groundwater Project Web site. Available online at:
http://www.jvwcd.org/swjvgp/swjvgp.html. Accessed May 2006.

U.S. Environmental Protection Agency (May 2003). Fact Sheet for Kennecott North Zone. Available online at:
http://www.epa.gov/region8/superfund/sites/ut/kennn.html. Accessed May 2006.

U.S. Environmental Protection Agency (May 2003). Fact Sheet for Kennecott South Zone. Available online at:
http://www.epa.gov/region8/superfund/sites/ut/kennes.html. Accessed May 2006.

U.S. Environmental Protection Agency (18 January 1994). NPL Site Narrative for Kennecott South Zone.

Notice at 2568 - 2574 Federal Register; Vol. 59, No. 11; Tuesday, January 18, 1994; Proposed Rules.
Available online at: http://www.epa.gov/superfund/sites/npl/narl428.htm. Accessed May 2006.

Utah Department of Environmental Quality. "State of Utah Natural Resource Damage Trustee Southwest
Jordan Valley Groundwater Cleanup Project." Available online at:
http://www.deq.utah.gov/Issues/nrd/index.htm.

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