Forest-wide Documents

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Open Access
Buffalo Mine abbreviated preliminary assessment
(2008-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine site on moderately steep side slopes, consisting of two adits, associated wasterock and tailing ponds, one with water treatment facilities and miscellaneous buildings. A Niton XLt unit found that all metals at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (13.13 to 338 mg/kg) exceeded EPA Region goals. The site has been given a Low Priority for any future site assessments.
Open Access
Bald Angel vegetation management decision notice/FONSI
(2007-02-22) La Grande Ranger District (Or.)
Announces decision to implement Alternative 3 of the project EA, emphasizing retention of critical high quality cover and connective corridor areas to provide cover and connectivity habitat while other overstocked stands are treated to accelerate development of long-term landscape cover and large structure needs.
Open Access
Granite Creek Tributary Mines initiation of CERCLA investigation memorandum
(2007-02-20) Wallowa-Whitman National Forest (Agency : U.S.)
Documents, pursuant to the Guidelines of the National Oil and Hazardous Substance Contingency Plan (NCP), the decision to initiate a CERCLA investigation in nine locations at the Granite Creek Tributary Mines site. A Site Inspection has determined that a hazardous release has occurred, and a human health and ecological risk assessment has been performed and acceptable exposure has been exceeded. Identifies possible threats to nearby human populations, animals, the food chain, soils, and drinking water.
Open Access
Granite Creek Tributary Mines initiation of CERCLA investigation memorandum
(2007-02-20) United States. Forest Service. Pacific Northwest Region
Documents, pursuant to the guidelines of the National Oil and Hazardous Substance Contingency Plan (NCP), the decision to initiate a CERCLA investigation in nine locations at the Granite Creek Tributary Mines site. A Site Inspection has determined that a hazardous release has occurred and a human health and ecological risk assessment has been performed and acceptable exposure exceeded. Identifies possible threats to nearby human populations, animals, food chain, soils, and drinking water.
Open Access
Bald Angel vegetation management project environmental assessment
(2006-12) La Grande Ranger District (Or.)
Evaluates actions to restore and enhance ecosystems, and reduce fire danger by fuels and density reduction treatments. Includes prescribed burning, precommercial and commercial timber thinning, and road closures.
Open Access
Blue Mountain land exchange -- Oregon final environmental impact statement
(2006-09) Malheur National Forest (Agency : U.S.); Umatilla National Forest (Agency : U.S.); Wallowa-Whitman National Forest (Agency : U.S.)
Analyzes proposed assembled land exchange between Clearwater Land Exchange-Oregon and the Forest Service, involving acquiring and conveying within the Malheur, Umatilla, and Wallowa-Whitman National Forests. Plans to provide for more efficient cost effective management of Forest lands through consolidation, and to acquire and protect habitat for Threatened and Endangered species and lands within Congressionally Designated Areas. Concerns include exercise of American Indian treaty rights and cultural uses, water quality, fisheries, old growth associated species, and social and economic environment.
Open Access
New York Mine abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine site consisting of numerous trenches on the mountain slope, at least five of which are collapsed to partially collapsed adits, 9000-12,000cy of wasterock and 4000cy of tailings. A Niton XLt unit found all metals detected at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (133.5 to 1459 mg/kg) exceeded EPA Region goals. Based on the high levels of arsenic throughout the site, the proximity of wasterock and tailings material to Granite Creek, the ease of access to the site, mine drainage, and numerous physical hazards, a High Priority has been assigned for further site assessment.
Open Access
Upper Central Mine abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine site on moderately steep side slopes consisting of four collapsed adits and about 1500cy of wasterock. A Niton XLt unit found most metals detected at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (84.1 mg/kg) exceeded EPA Regional goals. Based upon the location of the adits, lack of evidence of water discharge from the mines, lack of surface water sources, and relative ease of access by the general public, the site has been ranked a Low Priority for further assessment.
Open Access
Standard Mine abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine site on moderate side slopes, consisting of a large collapsed adit with minor seepage, approximately 500cy of wasterock near a small creek. A Niton XLt unit found that all metals exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (198.3 to 322 mg/kg) exceeded EPA Region goals. The site has been given a Medium Priority for further assessment work.
Open Access
Granite Creek Mine #6 abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine site consisting of a large collapsed adit and approximately 1000cy of wasterock material, which is adjacent to a small ephemeral tributary to Granite Creek. A Niton XLt unit found that most metals at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (7.16 mg/kg) exceeded EPA Region goals. Further site assessment was not warranted.
Open Access
Granite Creek Mine #5 abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine site consisting of a large collapsed adit and approximately 500cy of wasterock material adjacent to Granite Creek, with numerous trenches and apparent hydraulic mining. A Niton XLt unit found that most metals at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (59.7 mg/kg) exceeded EPA Region goals. Since the wasterock forms a part of the embankment for Granite Creek, the site has been given a High Priority for further site assessment.
Open Access
Golden Fraction abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses site consisting of a large collapsed adit and approximately 3000cy of wasterock material adjacent to Granite Creek. A Niton XLt found that most metals at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (50.79 to 76.5 mg/kg) exceeded EPA Region goals. Since the wasterock forms part of the embankment for Granite Creek, the site has been given a High Priority for further site assessment.
Open Access
Cap Martin complex abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses site consisting of four collapsed adits, one of which has water discharge, and 6000-80000cy of wasterock materials, most of which is adjacent to Granite Creek. There are numerous trenches and apparent hydraulic mining in the area as well as possible historic dredging operations, with one old log cabin and another apparently collapsed cabin. A Niton XLt unit found that most metals at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (60 to 105.6 mg/kg) exceeded EPA Region goals. The site has been given a High Priority for further assessment.
Open Access
Granite Creek Mine #7 abbreviated preliminary assessment
(2006-08) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine site consisting of a large collapsed adit and approximately 700cy of wasterock material adjacent to Granite Creek, with numerous trenches stemming from hydraulic mining and possible historic dredging operations. A Niton XLt unit found that most metals at the site exceeded screening criteria for birds, invertebrates, and plants, but only arsenic (79 mg/kg) exceeded EPA Region goals. The site has been given a High Priority.
Open Access
Mt. Emily II fuels reduction project environmental assessment and decision notice/FONSI
(2006-04-06) La Grande Ranger District (Or.)
Environmental assessment reviews proposed activities to respond to fire risks in the area deferred from the original Mt. Emily project within mapped lynx habitat, by modifying fuels and potential fire behavior on public lands. Includes ground-based removal of trees, cleaning and non-commercial thinning of small diameter trees in riparian areas, and protection of 331 acres of previously deferred lynx habitat.
Open Access
Granite Creek Mines human health and ecological risk assessment
(2006-04) Wallowa-Whitman National Forest (Agency : U.S.); Cascade Earth Sciences
Assesses, through a streamlined risk assessment process, potential human health and ecological risks associated with mining-related contamination at the Monumental, Cap Martin, Sheridan, Tillicum, and Central Mines (collectively called Granite Creek Mines). Arsenic and lead were identified as contaminants with carcinogenic risk predicted from exposure to arsenic-impacted surface water and soil/wasterock. Soil and wasterock threaten ecological impacts for primary plants and terrestrial invertebrates, and surface and pore water similarly pose a threat to aquatic life and wildlife. An Engineering Evaluation/Cost Analysis (EECA) is recommended, along with a data gap investigation.
Open Access
Joseph Creek rangeland analysis final environmental impact statement and record of decision
(2005-09-23) Wallowa Valley Ranger District (Or.)
FEIS reviews proposed activities to allocate forage for commercial livestock grazing on eleven allotments near Joseph Creek. Record of Decision announces implementation of Alternative 3 modified of the project FEIS, which would authorize grazing using an adaptive approach to grazing management while implementing specific protections for sensitive areas.
Open Access
Mt. Emily fuels reduction project environmental assessment and decision notice/FONSI
(2005-02-25) La Grande Ranger District (Or.)
Environmental assessment reviews proposed activities designed to reduce fuels and associated fire behavior in the stands of timber adjacent to or within the wildland urban interface on Mt. Emily. Activities include ground-based removal of trees, road construction and reconstruction, cleaning and non-commercial thinning of small diameter trees in riparian areas and prescribed burning. Decision Notice announces implementation of Alternative 3, and the decision modification drops the treatment of 63 acres of prescribed burning (Unit 309) and 290 acres of mechanical fuels reduction, and finds the Canada lynx habitat protection area to be outside the boundaries of the project.
Open Access
Upper Powder Watershed draft assessment
(2005) Wallowa-Whitman National Forest (Agency : U.S.)
Unfinished draft analyzes the watershed and its thirteen subwatersheds to facilitate planning, implementation, and evaluation of forest management activities. Examines issues, including vegetation and forest health, riparian and aquatic habitat, human uses, and wildlife.
Open Access
Rabbit Mine and Mill abbreviated preliminary asessment
(2004-03) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine and mill site on moderate to steep side slopes, with burned debris of the mill, open adit and an airshaft filled with water, with associated waste dumps. A Niton XRF unit found numerous chemical elements exceeded regulations, especially arsenic with readings as high as 807 mg/kg. Two partially-covered shafts constitute a physical hazard. A Site Inspection is recommended.