Greater Yellowstone v. Lewis

Court of Appeals for the Ninth Circuit·Decided December 23, 2010·No. 09-35729·Published

Opinion

FILED

FOR PUBLICATION DEC 23 2010

MOLLY C. DWYER, CLERK

UNITED STATES COURT OF APPEALS U.S . CO U RT OF AP PE A LS

FOR THE NINTH CIRCUIT

GREATER YELLOWSTONE No. 09-35729 COALITION; NATURAL RESOURCES DEFENSE COUNCIL; SIERRA CLUB; D.C. No. 4:08-cv-00388-MHW DEFENDERS OF WILDLIFE,

Plaintiffs - Appellants, OPINION v.

WILMA A. LEWIS; TOM TIDWELL; ROBERT V. ABBEY; THOMAS J. VILSACK; KEN SALAZAR; BRENT LARSON, Supervisor, Caribou-Targhee National Forest,

Defendants - Appellees,

J.R. SIMPLOT COMPANY; UNITED STEELWORKERS LOCAL 632; CITY OF POCATELLO; CITY OF CHUBBUCK; CITY OF SODA SPRINGS; POWER COUNTY; CARIBOU COUNTY; BANNOCK COUNTY; IDAHO FARM BUREAU FEDERATION; TOWN OF AFTON, WYOMING; LINCOLN COUNTY, WYOMING,

Defendant-intervenors -

Appellees.

GREATER YELLOWSTONE No. 09-35753 COALITION; NATURAL RESOURCES DEFENSE COUNCIL; SIERRA CLUB; D.C. No. 4:08-cv-00388-MHW DEFENDERS OF WILDLIFE,

Plaintiffs,

and ASHLEY CREEK PROPERTIES, L.L.C.,

Petitioner-intervenor -

Appellant,

v.

BRENT LARSON, Supervisor, Caribou- Targhee National Forest, in his official capacity; WILMA A. LEWIS; TOM TIDWELL; ROBERT V. ABBEY; THOMAS J. VILSACK; KEN SALAZAR,

Defendants,

UNITED STEELWORKERS LOCAL 632; CITY OF POCATELLO; CITY OF CHUBBUCK; CITY OF SODA SPRINGS; POWER COUNTY; CARIBOU COUNTY; BANNOCK COUNTY; IDAHO FARM BUREAU FEDERATION; TOWN OF AFTON, WYOMING; LINCOLN COUNTY, WYOMING,

Defendant-intervenors,

and

J.R. SIMPLOT COMPANY,

Defendant-intervenor -

Appellee.

Appeal from the United States District Court for the District of Idaho Miµel H. Williams, Magistrate Judge, Presiding

Argued and Submitted October 6, 2010 Seattle, Washington

Before: B. FLETCHER, TASHIMA and THOMAS, Circuit Judges.

Opinion by Judge Sidney R. Thomas THOMAS, Circuit Judge:

Greater Yellowstone Coalition, Natural Resources Defense Council, Sierra Club, and Defenders of Wildlife (collectively 'Greater Yellowstone') appeal the district court grant of summary judgment on Greater Yellowstone's action claiming that the expansion of the J.R. Simplot Smoµy Canyon Mine would violate the National Environmental Policy Act ('NEPA'), the Clean Water Act ('CWA'), and the National Forest Management Act ('NFMA'). We have jurisdiction under 28 U.S.C. y 1291, and we affirm.

I

Since 1984, J.R. Simplot Company ('Simplot') has operated the Smoµy Canyon Mine in parts of the Caribou National Forest to acquire phosphate ore. Current mining operations encompass five panels, labeled A to E, occupying around 5,000 acres of land. Overburden from these panels contains waste rocµ with a high selenium concentration. Although essential to animal health in small amounts, selenium is toxic at elevated levels. Highly toxic selenium concentrations have been found in area streams. Because of the high selenium levels produced at the site, the existing mining operations are subject to an ongoing site investigation and response action under the Comprehensive Environmental Response, Compensation, and Liability Act.1 To extend the life of the Smoµy Canyon Mine, Simplot proposed to extract resources from two federal mineral leases adjacent to the mine, designated as panels F and G. Simplot sought approval from the two federal agencies with jurisdiction over the federal land. The United States Bureau of Land Management ('BLM') has jurisdiction over all phosphate mining leases on public land, see 30

1 Appendix 2A of the Final Environmental Impact Statement explains the proposed remediation efforts as of 2007, including the diversion of Pole Canyon Creeµ around the Pole Canyon Overburden Area. As counsel noted at oral arguments, such a diversion has successfully been implemented.

U.S.C. y 211, and the United States Forest Service has the authority to provide a special use permit in furtherance of mining operations where such activities occur on forest system lands, such as the Caribou National Forest, see 36 C.F.R. y 251.

The agencies released a Draft Environmental Impact Statement ('DEIS') for public comment in 2005. The agencies held three public meetings in January 2006 and received 38,616 letters, emails, and comment forms responding to the DEIS. In October 2007, the agencies published a Final Environmental Impact Statement ('FEIS'). In the FEIS, the agencies concluded that the mine expansion would not contribute to violations of water quality standards. The agencies based this conclusion on the combined effects of (1) Simplot's efforts to reduce the selenium pollution seeping from Smoµy Canyon's existing pits, and (2) Simplot's proposed store and release cover system.

In light of the existing selenium pollution, especially in Sage Creeµ, the agencies acµnowledged the necessity of remediating the current mining areas in order to avoid exacerbating the current water quality violations. The agencies determined two areas--Pole Canyon and Panel E--were the major sources of existing selenium pollution in Sage Creeµ. The agencies noted in the FEIS that determining all sources of existing pollution would require additional investigation. The FEIS evaluated the remediation efforts at Pole Canyon and

Panel E, and concluded that the remediation efforts would significantly reduce existing selenium levels.

In combination with remediating existing pollution, Simplot sought to limit future selenium pollution from the mine expansion by reducing the amount of water that would flow through the newly extracted waste rocµ. Simplot conducted scientific modeling and analysis to predict the rate at which water would filter through the overburden and into surface water, and the amount of selenium such water would carry. Based on that information, Simplot designed a cover that would be placed throughout panels F and G to limit the percolation of water. However, when Simplot tested this cover using a HELP3 water balance model, the agencies determined the amount of precipitation entering the overburden needed to be reduced further.

To achieve the required reductions in percolation, Simplot developed the Deep Dinwoody Cover System, which consists of layers of one to two feet of topsoil, three feet of material from a geological stratum µnown as the Dinwoody Formation, and two feet of chert--a coarse material that encourages moisture storage and subsequent removal of moisture by evapotranspiration. The agencies eventually adopted this design in the FEIS.

To test the Dinwoody Cover, Simplot hired an independent environmental consultant, O'Kane Consultants, that performed two sets of studies using conservative estimates of the Dinwoody Cover elements. O'Kane first used 100 years of daily climate data to run a one-dimensional model study that estimated annual water infiltration based on evaporation, transpiration, runoff, and vertical percolation. Because the one-dimensional model did not account for horizontal movement of water, O'Kane then performed two two-dimensional studies. The first two-dimensional study tooµ into account the full size of the mine, and was run across twenty years, including the five wettest years. The second two-dimensional study was run across the full 100 years, but used a shortened slope length instead of the full size of the mine. The two studies were conducted using this methodology because a full two-dimensional model would have taµen at least three months to complete.

During the environmental review process, the agencies convened a twenty-

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