Physical Sciences and Mathematics Commons^™

Canyonlands National Park And Orange Cliffs Unit Of Glen Canyon National Recreation Area, Environmental Assessment For Backcountry Management Plan, Canyonlands National Park, Glen Canyon National Recreation Area

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Whether on foot. bicycle. horseback. or in vehicles, most visitors come to Canyonlands National

Park (Canyonlands) to experience solitude or to "get away from people." Yet visitation to

Canyonlands has risen exponentially over the past five years (Figures I and 2). Visitation is expected to continue to rise. As a function of this increase in number of visitors, adverse impacts to Canyonlands' resources have increased and the visitors' ability to find solitude has decreased. Since the mandate of the National Park Service (NPS) is to balance visitor access

to the parks with preservation and protection of natural and cultural resources, …

Record Of Decision Utah Power & Light/American Barrel Site Salt Lake City, Utah, United States Environmental Protection Agency

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This decision document presents the selected remedial action for the Utah Power & Light American Barrel Site in Salt Lake City, Utah, which was chosen in accordance with the requirements of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended by Superfund Amendments and Reauthorization Act of 1986 (SARA), and, to the extent practicable, the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). This decision is based on the administrative record for this site. The Utah Department of Environmental Quality concurs with the remedy selected by the U.S. Environmental Protection Agency (EPA).

Preliminary Public Health Assessment: Petrochem Recycling Corporation/Ekotek Salt Lake City, Salt Lake County, Utah, Agency For Toxic Substances And Disease Registry, Divisoin Of Health Assessment And Consultation

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The Petrochem/EkoTek site was operated by several owners as a refinery from 1953 until 1978 and as a hazardous waste storage treatment facility and a petroleum recycling facility from 1978 through 1988. Removal of essentially all petroleum products and hazardous wastes in tanks and drums was accomplished from 1988 - 1991. The process that will lead to the complete clean-up of the facility is ongoing. The site was added to the National Priorities List (NPL) in October 1992. Exposure of humans to contaminants in soil and air is thought to have occurred near Petrochem. The source(s) of those contaminants in …

Problem Analysis For The Vegetation Diversity Project, David A. Pyke, Michael M. Borman, U.S. Department Of The Interior, Bureau Of Land Management

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Management of the majority of public rangeland in the Great Basin and Columbia-Snake River Plateau falls under the authority of the Bureau of Land Management. The flora of this land ranges from highly diverse native plant communities to deteriorated lands dominated by exotic annuals. Approximately nine percent of the BLM’s 78 million acres of public land in this region is degraded to such a degree that changes in land management alone will not result in significant improvement. The BLM intends to restore native plant communities on these deteriorated lands, but current revegetation techniques used to establish introduced perennial grasses are …

Remedial Action Plan For The Codisposal And Stabilization Of The Monument Valley And Mexican Hat Uranium Mill Tailings At Mexican Hat, Utah, Uranium Mill Tailings Remedial Action Project Office, Albuquerque Operations Office, Department Of Energy

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The Mexican Hat tailings site is in the San Juan County, Utah, two road miles southwest of the town of Mexican Hat on the Navajo Reservation. The Navajo community of Halchita is approximately 0.5 mile southwest of the site. The mill at the Mexican Hat site was operated from 1957 to 1965 by Texas-Zinc Minerals Corporation and the Atlas Corporation. Originally, two irregularly shaped tailings piles were located in the northeastern portion of the site. They occupied approximately 69 acres of the 235-acre designated site and contained approximately 2,575,000 cubic yards (cy) of tailings. The total amount of materials, including …

Conceptual Evaluation Of Regional Ground-Water Flow In The Carbonate-Rock Province Of The Great Basin, Nevada, Utah, And Adjacent States, United States Geological Survey

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The carbonate-rock province of the Great Basin, mainly in eastern Nevada and western Utah, is characterized by thick sequences of carbonate rocks of Paleozoic age. These rocks overlie clastic and crystalline rocks of Cambrian and Precambrian age, respectively. Since the carbonate rocks were deposited, structural compression and extension, intrusive and volcanic episodes, and erosion have greatly modified their distribution and thickness, and a variety of younger rocks and deposits have been emplaced within and above them. The most notable present-day physiographic features in the area are associated with normal faults caused by tensional forces during Tertiary time: The faulting has …

Diamond Mountain Resource Area Resource Management Plan And Environmental Impact Statement, Volume Ii, United States Bureau Of Land Management

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During the comment period January 3 through April 1, 1992, 286 letters were received on the Draft Diamond Mountain Resource Management Plan and Environmental Impact Statement. However, Several letters were received after the comment period closed and too late to be individually responded to in this document. The concerns and issues raised in these letters have been expressed in other comment letters which have been responded to and which are reprinted here.

Diamond Mountain Resource Area Resource Management Plan And Environmental Impact Statement, United States Bureau Of Land Management

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This proposed resource management plan and final environmental impact statement addresses management of all resources on approximately 709,000 acres of public land administered by the Bureau of Land Management, Diamond Mountain Resource Area, Vernal District, in Daggett, Duchesne, and portions of Uintah Counties, in northeastern Utah.

Archeological Investigations At Two Sites In Dinosaur National Monument: 42un1724 And 5mf2645, United States Department Of The Interior National Park Service

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Archeological excavations in Dinosaur National Monument (DINO) were conducted at 5MF2645 (the Pool Creek Site) in 1988 and 42UN1724 (Juniper Ledge Shelter) in 1989. The information from these two sites, along with additional archeological data obtained between 1988 and 1992, have expanded our knowledge of the past 3700 years of human occupation in the DINO area. Juniper Ledge Shelter (42UN1724) is a south-southeast facing rockshelter in the Jones Hole Ely Creek area of the monument. Excavation of a two meter square unit produced evidence of three occupational components and a Fremont burial of an adult female with associated artifacts. The …

Probability Of Fire-Stopping Precipitation Events, U.S. Forest Service

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The possibility that a useful probability for fire stopping precipitation could be developed from historical weather records was investigated.

Operation Of Glen Canyon Dam, Draft Environmental Impact Statement, United States Department Of The Interior

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This draft environmental impact statement (EIS) analyzes the impacts of operations from 1963 to 1990 (baseline conditions) and alternative operations of Glen Canyon Dam on downstream environmental and cultural resources of Glen and Grand Canyons. Alternative operations evaluated include three that would provide steady flows; three that would provide various levels of fluctuating flows; and two, including no action, that would provide unrestricted fluctuating flows. Additional measures have been combined with the alternative operations, where appropriate, to provide additional resource protection or enhancement. The preferred alternative is the Modified Low Fluctuating Flow Alternative.

Archeological Investigations At Two Sites In Dinosaur National Monument: 42un1724 And 5mf2645, James A. Truesdale, National Park Service

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Archeological excavations in Dinosaur National Monument (DINO) were conducted at 5MF2645 (the Pool Creek Site) in 1988 and 42UN1724 (Juniper Ledge Shelter) in 1989. The information from these two sites, along with archeological data obtained between 1988 and 1992, have expanded our knowledge of the past 3700 years of human occupation in the DINO area. Juniper Ledge Shelter is a south-southeast facing rockshelter in the Jones Hole Ely Creek area of the monument. Excavation of a two meter square unit produced evidence of three occupational components and a Fremont burial of an adult female with associated artifacts. The upper two …

Rangeland Monitoring: Analysis, Interpretation, And Evaluation, United States Bureau Of Land Management

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The collection of monitoring data results in quantitative and qualitative information obtained from measurements or estimates of the natural resources. These data are most valuable when their meaning is defined and presented in understandable terms to the resource manager. This is the analysis, interpretation, and evaluation process. The result is the documentation of conclusions on the progress of management to accomplish specific management objectives. Such conclusions are used for management and planning purposes, and in particular, for determining managment actions and establishing new or revised management objectives.

Zion Canyon Headquarters, Zion National Park, Utah, Draft Development Concept Plan, Environmental Assessment, United States Department Of The Interior, National Park Service

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The study area, referred to as the headquarters area, incorporates the area from the south entrance station north to the Zion Canyon bridge. This includes the visitor center, the Watchman and South campgrounds, the amphitheaters, the nature center, the Oak Creek, Watchman, and Pine Creek residential areas, and the Oak Creek maintenance area. The study area encompasses approximately 325 acres. It includes a development zone (107 acres) and a natural zone (218 acres), and is surrounded by a proposed wilderness subzone.

Some Economic Impacts Of The 1988 Fires In The Yellowstone Area, U.S. Forest Service

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Revenues from tourism and loss of tourist expenditures were investigated

Big Eightmile, North Fork Of Timber And Alder Creek Timber Sale Final Environmental Impact Statement, United States Forest Service

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This Final Environmental Impact Statement documents the analysis of nine alternatives, including a "no action" alternative, that were developed for the proposed Big Eightmile, North Fork Timber, and Alder Creeks Timber Sales. The proposed action is designed to help achieve the silvicultural goals and objectives of the 1988 Salmon National Forest Land and Resource Management Plan (Forest Plan). Each alternative responds to issues associated with the proposed action that were identified during the scoping processes both preceding and following the Draft Environmental Impact Statement.

Canyonlands National Park And Orange Cliffs Unit Of Glen Canyon National Recreation Area Environmental Assessment For Backcountry Management Plan, National Park Service

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Whether on foot, bicycle, horseback, or in vehicles, most visitors come to Canyonlands National Park (Canyonlands) to experience solitude or to "get away from people." Yet visitation to Canyonlands has risen exponentially over the past five years (Figures 1 and 2). Visitation is expected to continue to rise. As a function of this increase in number of visitors, adverse impacts to Canyonlands' resources have increased and the visitors' ability to find solitude has decreased. Since the mandate of the National Park Service (NPS) is to balance visitor access to the parks with preservation and protection of natural and cultural resources, …

Flood Insurance Study, City Of Price, Utah, Carbon County, Federal Emergency Management Agency

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This Flood Insurance Study revises and updates a previous Flood Insurance Study/Flood Insurance Rate Map for the City of Price, Carbon County, Utah. This information will be used by the City of Price to update existing floodplain regulations as part of the Regular Phase of the National Flood Insurance Program (NFIP). The information will also be used by local and regional planners to further promote sound land use and floodplain development.

Flood Insurance Study, Carbon County, Utah, Unincorporated Areas, Federal Emergency Management Agency

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The purpose of this Flood Insurance Study is to investigate the existence and severity of flood hazards in the unincorportated areas of Carbon County, Utah, and to aid in the administration of the National Flood Insurance Act of 1968 and the Flood Disaster Protection Act of 1973. Initial use of this information will be to convert Carbon County to the regular program of flood insurance by the Federal Insurance Administration. Further use of the information will be made by local and regional planners in their efforts to promote sound land use and flood plain development.

Overview Of The Proposed Critical Habitat For The Colorado River Endangered Fishes, United States Department Of The Interior Fish And Wildlife Service

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This document presents an overview of the process, procedures and determinations associated with the proposed critical habitat designation for the razorback sucker, Colorado squawfish, humpback chub, and bonytail (also known as bonytail chub). These species are listed as endangered under the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.). Part I is an overview of the proposed critical habitat designation for the Colorado River endangered fishes. Part II is a summary of the biological information used in determining areas for proposed designation and the description of each area proposed on January 29, 1993 (58 FR …

Timpanogos Cave National Monument Environmental Impact Statement, General Management Plan, Development Concept Plan, United States Department Of The Interior National Park Service

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This plan was initiated to fulfill the legal requirements as mandated by section 604 of Public Law 95-625 and is in compliance with NPS management policies, applicable legislation, and executive requirements. The purpose of this Environmental Impact Statement/General Management Plan/Development Concept Plan is to identify and assess the various management alternatives and associated potential environmental impacts relative to monument operations, visitor use and access, natural and cultural resource management, and general development at Timpanogos Cave National Monument. In developing these alternatives, special attention was focused on the management objectives of the monument and current issues as presented in the "Purpose …

Price - San Rafael Rivers Unit, Utah, Planning Report / Final Environmental Impact Statement, Colorado River Water Quality Improvement Program / Colorado River Salinity Control Program, United States Department Of The Interior, Bureau Of Reclamation And United States Department Of Agriculture, Soil Conservation Service

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This integrated Planning Report/Final Environmental Impact Statement (PR/FEIS) presents an analysis of the planning process and the environmental impacts of the proposed Price-San Rafael Rivers Unit (Unit) of the Colorado River Water Quality Improvement Program (CRWQIP) and the Colorado River Salinity Control Program (CRSC). The document has been jointly prepared by the Bureau of Reclamation (Reclamation) and the Soil Conservation Service (SCS) to address the full range of potential environmental impacts, in compliance with the National Environmental Policy Act (NEPA). The CRWQIP/CRSC programs provide for projects upstream of Imperial Dam (near Yuma, Arizona, on the Arizona-California border) that are necessary …