Wallowa-Whitman National Forest

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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
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
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
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
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
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 #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
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
Granite Creek Mines site inspection
(2004-01) Wallowa-Whitman National Forest (Agency : U.S.); EA Engineering, Science, and Technology, Inc.
Documents Site Inspection performed by EA Engineering at five Granite Creek Mines: Monumental, Cap Martin, Sheridan, Tillicum, and Central. The objectives were to access the immediate or potential threat posed by wastes at the site to human health and the environment, and to collect information to support a CERCLA decision, including background research and file review; onsite and offsite reconnaisance; and collection and analysis of soil, waste, surface water, pore water, sediment, plant tissue, and benthic macroinvertebrate samples. Based on the elevated concentrations of metals detected in onsite soil and waste rock samples at all five mine sites, as well as onsite surface water samples collected at the Monumental Mine, an Engineering Evaluation/Cost Analysis (EE/CA) is recommended.
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
Hells Canyon National Recreation Area comprehensive management plan final environmental impact statement executive summary, record of decision, and summary
(2003-07-21) Wallowa-Whitman National Forest (Agency : U.S.)
FEIS analyzes five alternatives seeking to make management, utilization, and disposal of natural resources compatible with the HCNRA Act. Record of decision announces selection of the preferred Alternative E-modified, which continues the management direction in the Forest Plan, but with specific changes designed to address the need for change. Includes emphasizing maintaining the rustic and primitive nature of the area while restoring the natural role of fire and maintaining vegetative conditions within HRV.
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
Pyx Mine and Mill abbreviated preliminary assessment
(2004-03) Wallowa-Whitman National Forest (Agency : U.S.)
Assesses mine and mill site in moderate to steep side slopes, consisting of an open adit, waste rock dumps, tailings pond, and remains of a mill. A Niton XRF unit found numerous chemical elements exceeding regulations, including arsenic (595 mg/kg), lead (1720 mg/kg), and chromium (924 mg/kg). A Site Inspection is recommended.
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.
Open Access
Sled Springs OHV trail system and road management plan decision notice
(2008-11-26) Wallowa-Whitman National Forest (Agency : U.S.)
Announces decision to implement Alternative 5 of project EA, to restrict motorized use in the Sled Springs area to designated routes. Upon establishment of the trail system, or implementation of the Forest-wide Travel Management Plan, which ever comes first, off-trail travel by motorized vehicles will no longer be authorized except for snowmobile use in the winter. The OHV trail system will include 156 miles of designated roads and trails for use by all-terrain vehicles and motorcycles (Oregon class 1 and 3 vehicles, described as OHV vehicles henceforth). Of this 156-mile road and trail system, full-sized vehicles (Oregon class 2 vehicles) are authorized to travel on 71 miles of existing roads. Convert 60 miles of existing roads into OHV-only trails and construct approximately 25 miles of new OHV trail as connections between existing roads to create logical riding loops.
Open Access
Sled Springs OHV trail system and road management plan environmental assessment
(2008-11) Wallowa-Whitman National Forest (Agency : U.S.)
Proposes to establish a 166-mile OHV trail system in the Sled Springs area. This OHV trail system would be for all-terrain vehicles and motorcycles. The proposal consists of converting 71 miles of existing roads into OHV-only trails, converting an additional 77 miles of existing roads into routes available for both full-sized vehicles and OHVs, and constructing approximately 18 miles of new OHV trail as connections between existing roads to create logical riding loops. This alternative also includes the placement of five OHV bridges where trails cross streams.
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
Sugar vegetation management project environmental assessment
(2008-11) Wallowa-Whitman National Forest (Agency : U.S.)
Proposes several alternatives for project initiating tree thinning, fuel reduction, and rehabilitation work, including placing large wood into Five Points Creek.
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
Upper Grande Ronde mine tailings restoration project environmental assessment
(2009-01) Wallowa-Whitman National Forest (Agency : U.S.)
The Upper Grande Ronde Mine Tailings Restoration Project would remove and/or redistribute mine tailings as far away from the wetted edge of the upper Grande Ronde River as possible. A total of 18 sites would have mine tailings removed or redistributed for an approximate total of 46,964 yards. All of these sites are located within the floodplain of the upper Grande Ronde River (approx. 2.5 stream miles) and East Fork Grande Ronde River (approx. 25 mile). Wood would be placed within the entire 4.7 miles of the upper Grande Ronde River. Two roads and two dispersed sites would be obliterated. Six other dispersed sites would continue to provide recreation, but would have defined access points through strategic boulder placement. Seeding and planting would occur through out the entire project area.