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1997

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Articles 31 - 46 of 46

Full-Text Articles in Environmental Indicators and Impact Assessment

Wildfire Case Study: Butte City Fire, Southeastern Idaho, July 1, 1994, Bret W. Butler, Timothy D. Reynolds, United States Department Of Agriculture, Forest Service, Intermountain Research Station May 1997

Wildfire Case Study: Butte City Fire, Southeastern Idaho, July 1, 1994, Bret W. Butler, Timothy D. Reynolds, United States Department Of Agriculture, Forest Service, Intermountain Research Station

All U.S. Government Documents (Utah Regional Depository)

The Butte City Fire occurred on July 1, 1994, west of Idaho Falls, ID. Ignited from a burning flat tire, the blaze was driven by high winds that caused it to cover over 20,500 acres in just over 6.5 hours. Sagebrush (Artemisia tridentata ssp. wyomingensis) is the principal shrub species of this high dese~t rangeland. With the absence of vegetation after the fire, erosion increased tremendously. Because the fire occurred on the Idaho National Engineering Laboratory, researchers were able to gather weather information from remote meteorological stations positioned on and around the site.


Effects Of Acid Mine Drainage On Stream Fish Assemblages In The North Chickamauga Creek Watershed, Tennessee, Kristie J. Jenkins Apr 1997

Effects Of Acid Mine Drainage On Stream Fish Assemblages In The North Chickamauga Creek Watershed, Tennessee, Kristie J. Jenkins

Honors Theses

Approximately 18 miles of the NCC system, Tennessee is polluted by acid mine drainage (AMD). The effects of AMD upon the North Chickamauga Creek (NCC) system were evaluated from water quality measurements, habitat assessments, and fish collections. Sampling surveys were conducted at three AMO-impacted (pH < 5.5) and two reference sites (pH> 6.2) in the NCC system. Stream fish were collected using backpack electroshockers and hoop nets. A total of seven species were collected at the reference sites, whereas three species were collected at the AMO-impacted sites. Fish abundance was significantly greater (P < 0.1) at the reference sites than at the AMO-impacted sites, regardless of the sampling technique. No fish were collected at one of the AMO-impacted streams where the pH was <5 and the concentration of dissolved aluminum was > 700 mg/L. Results of my study indicate that fish populations were affected more by …


Las Vegas Wash Water Quality Monitoring Program: 1996 Report Of Findings, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation, U.S. Geological Survey Apr 1997

Las Vegas Wash Water Quality Monitoring Program: 1996 Report Of Findings, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation, U.S. Geological Survey

Publications (WR)

Las Vegas Wash, a natural wash east of the city of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from three sewage treatment plants to Lake Mead. The Wash provides nearly the only surface water outlet for the entire 2,193 mi2 of Las Vegas Valley. A drainage area of 1,586 mi2 contributes directly to the Wash through surface flow which is channeled to Las Vegas Bay of Lake Mead, while drainage of the remaining 607 mi2 is presumably subsurface and may drain toward Las Vegas Wash.

In the 1930's and 1940's, sewage treatment plants were …


Acid Mine Drainage And Its Effects On Salamander Assemblages In Cumberland Plateau Streams Of The North Chickamauga Creek Watershed, Tennessee, Melissa Combs Apr 1997

Acid Mine Drainage And Its Effects On Salamander Assemblages In Cumberland Plateau Streams Of The North Chickamauga Creek Watershed, Tennessee, Melissa Combs

Honors Theses

In Appalachia's coal mining regions, acid mine drainage (AMD) has contributed to the widespread degradation of stream ecosystems. Salamanders are common inhabitants of healthy headwater streams and because of their permeable skins are excellent indicators of ecosystem intergrity. Hence, we investigated the potential effects of AMD on the species richness and relative abundance of aquatic salamanders in selected stream reaches (sites) of the North Chickamauga Creek (NCC) system, Tennessee. Specimens were collected by kick-net sampling with a 500um mesh dip net and/or electroshocking at four AMD-impacted sites (pH< 5.6) and two reference sites pH> 6.2), May-July 1996. Species richness was similarly low at reference sites, 2 …


Results Of The City Of Tampa Surface Water Compliance Monitoring Program For The Year 1996 And Examination Of Long-Term Water Quality And Biological Indicator Trends In Hillsborough Bay, City Of Tampa Department Of Sanitary Sewers Mar 1997

Results Of The City Of Tampa Surface Water Compliance Monitoring Program For The Year 1996 And Examination Of Long-Term Water Quality And Biological Indicator Trends In Hillsborough Bay, City Of Tampa Department Of Sanitary Sewers

Reports

This report is submitted to the Florida Department of Environmental Protection (FDEP) to satisfy the requirements set forth in specific condition No. 14 of the Howard F. Curren WWTP permit No. D029-184532B. The report is based on data obtained by the City of Tampa (COT) compliance water quality monitoring program approved under construction permit DC29-152799. The report also includes examination of long-term trends for water quality parameters and biological indicators collected by the City of Tampa Bay Study Group and the Environmental Protection Commission of Hillsborough County (EPC).


Seagrass And Caulerpa Monitoring In Hillsborough Bay Eighth Annual Report, City Of Tampa Department Of Sanitary Sewers Mar 1997

Seagrass And Caulerpa Monitoring In Hillsborough Bay Eighth Annual Report, City Of Tampa Department Of Sanitary Sewers

Reports

This is the eighth annual report to FDER to satisfy the requirements set forth in specific condition #14 of FDER construction permit DO29-1845321B.

The City of Tampa, Bay Study Group (BSG), has monitored the effects of sewage pollution abatement in Hillsborough Bay since 1976. Within the last decade, water quality improvements and evidence of minor seagrass revegetation in Hillsborough Bay prompted the BSG to initiate a seagrass study to compliment other programs assessing the environmental status of Hillsborough Bay.


The Influence Of The Wastewater Drainage From The Las Vegas Valley On The Limnology Of Boulder Basin, Lake Mead, Nevada-Arizona, James F. Labounty, Michael J. Horn, Bureau Of Reclamation Jan 1997

The Influence Of The Wastewater Drainage From The Las Vegas Valley On The Limnology Of Boulder Basin, Lake Mead, Nevada-Arizona, James F. Labounty, Michael J. Horn, Bureau Of Reclamation

Publications (WR)

Lake Mead, Colorado River, Arizona-Nevada, is one of the most heavily used reservoirs in the western United States, providing abundant recreational opportunities as well as downstream domestic and agricultural water for over 22 million users. Based on average nutrient levels and productivity, Lake Mead is classified as mildly mesotrophic. The interflow of the Colorado River dominates the limnology of much of the 106 km-long reservoir, and may still be identified at Hoover Dam under certain conditions. The lower basin of Lake Mead ending at Hoover Dam is known as Boulder Basin and is near the Las Vegas metropolitan area. Las …


Land Use Patterns In Relation To Lake Water Quality In The Messalonskee Lake Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College Jan 1997

Land Use Patterns In Relation To Lake Water Quality In The Messalonskee Lake Watershed, Problems In Environmental Science Course (Biology 493), Colby College, Colby Environmental Assessment Team, Colby College

Colby College Watershed Study: Other Area Studies

The main purpose of this study is to assess the current land use patterns and their influences on the water quality of Messalonskee Lake, including the biotic and abiotic parameters which are involved. More specifically, four main objectives were proposed. First, was to calculate the water budget and flushing rate for Messalonskee Lake. Second, was to determine the influence of current and historical land use patterns on lake water quality. Third, was to utilize gathered information to construct a phosphorus model, which will enable future water quality predictions to be made. Our fourth and final objective was to make recommendations …


Federal Land Management: Authorized Uses In The Grand Staircase-Escalante National Monument, General Accounting Office, Barry T. Hill Jan 1997

Federal Land Management: Authorized Uses In The Grand Staircase-Escalante National Monument, General Accounting Office, Barry T. Hill

All U.S. Government Documents (Utah Regional Depository)

On September 18, 1996, President Clinton designated about 1.7 million acres of federal land in southern Utah as the Grand Staircase-Escalante National Monument. The monument, which covers an area larger than the State of Delaware, is administered by the Department of the Interior's Bureau of Land Management (ELM). Within this land area, mineral leases, grazing allotments, and other land-use authorizations remain valid despite the area's designation as a national monument. To respond to interest in the extent to which these authorized uses exist, we obtained information on the number of mineral leases, grazing permits, and other use authorizations for BLM-managed …


Hill Air Force Base, Utah, Final Record Of Decision And Responsiveness Summary For Operable Unit 2, Ogden Alc Jan 1997

Hill Air Force Base, Utah, Final Record Of Decision And Responsiveness Summary For Operable Unit 2, Ogden Alc

All U.S. Government Documents (Utah Regional Depository)

This decision document presents the selected remedy for Operable Unit 2 (OU2) at Hill Air Force Base (HAFB), Utah. It was selected in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA), as amended by the 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 State of Utah and the U.s. Environmental Protection Agency (EPA) concur with the selected remedy.


Development Of Constructed Wetlands For The Reuse Of Wastewat R In Semi-Arid Regions, Byung J. Kim, Sherwood C. Reed, Thomas Andrew, Patrick D. Sullivan, U.S. Army Corps Of Engineers Jan 1997

Development Of Constructed Wetlands For The Reuse Of Wastewat R In Semi-Arid Regions, Byung J. Kim, Sherwood C. Reed, Thomas Andrew, Patrick D. Sullivan, U.S. Army Corps Of Engineers

All U.S. Government Documents (Utah Regional Depository)

Hill Air Force Base (AFB), UT, is responsible for the operation and maintenance of the Utah Test and Training Range (UTTR). The range contains waste-water treatment and disposal facilities that consist of two infiltration ponds operated in parallel, followed by an emergency overflow basin that safeguards against unexpectedly high flow rates. A previous evaluation concluded that the existing facilities should be replaced, at a relatively high cost and with no possibility for beneficial water reuse. The U.S. Army Construction Engineering Research Laboratories (USACERL) was requested to further evaluate the system and to identify cost-effective, feasible alternatives. USACERL researchers identified a …


Final Environmental Impact Statement For Management Of The High Uinta Wilderness, Usda Forest Service Jan 1997

Final Environmental Impact Statement For Management Of The High Uinta Wilderness, Usda Forest Service

All U.S. Government Documents (Utah Regional Depository)

The Final Environmental Impact Statement analyzes four alternatives to amend the Ashley and Wasatch-Cache National Forest Land and Resource Management Plan (Forest Plan) to include Desired Future Condition for mapped Condition Classes with accompanying indicators and standards for the High Uintas Wilderness. The No Action Alternative is analyzed in depth also. Significant issues considered include effects of human overuse on ecosystem components, the extent visitor experience is impacted by rules and regulations, the extent visitor solitude is impacted by other users, structures, and resource impacts, the extent trails meet wilderness objectives, the threat of human and animal waste to water …


1997 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie Jan 1997

1997 File Geodatabase Containing Photo Point Locations, Aerial Photos, And Flight Maps, City Of Tampa Department Of Sanitary Sewers Bay Study Group, Pete Reehling, Richard Mckenzie

Data Sets

The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the photo point locations, aerial photos, and flight maps for the year 1997.


1997 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group Jan 1997

1997 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group

Images

The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the aerial photos for the year 1997.


State Of Tampa Bay 1996, J.O.R. Johansson Jan 1997

State Of Tampa Bay 1996, J.O.R. Johansson

Reports

The amount of phytoplankton present in Tampa Bay waters can be estimated from measurements of the green plant pigment chlorophyll-a. Phytoplankton is one of several major forms of plants that exist in Tampa Bay and most other estuaries. Other major plant types are submerged seagrass, macro-algae and benthic micro-algae. The different plants can be viewed as being in competition with each other for required resources, such as light and nutrients. Studies conducted in urbanized estuaries have shown that excessive loading of nitrogen generally is accompanied by an increase of phytoplankton and macro-algae, including epiphytic and drift macro-algae, and by a …


An Evaluation Of The Productivity Of Two Oil Mallee Species In A Revegetation Trial In The Central Wheatbelt Of Western Australia, Beatrice Lucie Hedwig Franke Jan 1997

An Evaluation Of The Productivity Of Two Oil Mallee Species In A Revegetation Trial In The Central Wheatbelt Of Western Australia, Beatrice Lucie Hedwig Franke

Theses : Honours

Two of Western Australia's most pressing land degradation problems are waterlogging and increasing soil salinity. Extensive clearing of the native. deep-rooted vegetation and its replacement with shallow-rooted crop and pasture plants has resulted in increased recharge of groundwater tables. causing them to rise. Salts stored in the soil are being brought to the soil surface with the rising watertables. Revegetation with deep-rooted native plants has been identified as the most likely strategy to achieve increased groundwater usage and a lowering of watertables. One area seriously affected by waterlogging and increasing salinity is the Western Australian central wheatbelt region. The Department …