3 edition of Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States found in the catalog.
Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States
Wayne A. Pettyjohn
by U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory in Ada, OK
Written in English
|Statement||Wayne A. Pettyjohn, Mark Savoca, and Dale Self.|
|Contributions||Savoca, Mark E., Self, Dale., Robert S. Kerr Environmental Research Laboratory.|
|The Physical Object|
Pesticides and Stream Ecology: The Regional Stream Quality Assessment (RSQA) is assessing how chemical stressors, such as pesticides and nutrients, and physical stressors, such as disturbed streambanks and sedimentation, are affecting the aquatic organisms that live in small streams across the United States. Ground Water Vulnerability Assessment – Challenges and Opportunities. Ravinder Kaur and K.G. Rosin. Division of Environmental Sciences, Indian Agricultural Research Institute, New Delhi, India. e-mail: [email protected] Pollution of groundwater due to industrial and municipal wastes is of a rising concern inFile Size: KB.
The Pettyjohn et al. aquifer classification scheme can be found in EPA Report //, “Regional Assessment to Aquifer Vulnerability and Sensitivity in the Conterminous United States,” August Under this classification scheme, aquifers are ranked as Class I (a-d), II (a-c), III, or U. Class I aquifers are surficial or shallow, are permeable, and are highly vulnerable to contamination. Florida Aquifer Vulnerability Assessment (FAVA): Purpose: To predict the intrinsic relative vulnerability of Florida’s aquifer systems (FAS, SAS & IAS) to contamination from land surface Objective: To provide a scientifically defensible water-resource management and protection tool that will facilitate planning of.
The Texas Edwards Aquifer Recovery Implementation Program Habitat Conservation Plan 78 balances water pumping and use of the aquifer with protection of eight federally listed threatened and endangered species that depend on San Marcos Springs and Comal Springs, two of the largest springs in the southwestern United States. These springs are the. Vulnerability to Contamination of Major Aquifers in Alabama: Area 5: Geological Survey of and Self, Dale, , Regional assessment of aquifer vulnerability and sensitivity in conterminous United States: U.S. Environmental Protection Agency Report EPA///, p. Sapp, C. D., and Emplaincourt, Jacques, , Physiographic regions File Size: KB.
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EPA/// August REGIONAL ASSESSMENT OF AQUIFER VULNERABILITY AND SENSITIVITY IN THE CONTERMINOUS UNITED STATES by Wayne A. Pettyjohn Mark Savoca Dale Self Oklahoma State University Stillwater, Oklahoma Cooperative Agreement CR Project Officer Jerry Thornhill Extramural Activities And Assistance Division Robert S.
Kerr. Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States. Washington, D.C.: U.S. Environmental Protection Agency, Office of Research and Development, (OCoLC) That is, aquifers that have a high degree of vulnerability and are in areas of high population density are considered to be the most sensi- tive.
About 46 percent of the land area of the conterminous United States con- sists of vulnerable Class I aquifers. Aquifer sensitivity is related to the potential for contamination. That is, aquifers that have a high degree of vulnerability and are in areas of high population density are considered to be the most sensitive.
About 46 percent of the land area of the conterminous United States consists of vulnerable class I aquifers.
Get this from a library. Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States. [Wayne A Pettyjohn; Mark Savoca; Dale Self; Robert S. Kerr Environmental Research Laboratory.; Oklahoma State University.].
A square-mile region within Will County, in northeastern Illinois, was used as a test region for the development of a methodology to map the sensitivity of aquifers to contamination. An aquifer sensitivity model was developed using a geographic information system (GIS) to overlay and combine several data by: 2.
Pettyjohn WA, Savoca M, Self D () Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States. In: Report EPA// U.S. Environmental Protection Agency, Ada. Google ScholarCited by: 2.
assessment could include an entire aquifer, a portion of an aquifer system, or end at the wellhead. Other rel-evant definitions are more specific and have separated aquifer characteristics from the broader case of aquifer or water-supply vulnerability to specific contaminants.
In this sense, “aquifer sensitivity” or “intrinsic suscepti-File Size: 2MB. For the assessment of impact of individual parameters towards aquifer vulnerability, the single parameter sensitivity analysis is performed.
The statistical summary of single parameter sensitivity analysis is shown in TableCited by: 7. Logistic regression is an improvement over earlier aquifer vulnerability studies involving geographic information systems (GIS).
Prior researchers (25) used GIS overlays to estimate the likelihood of nitrate contamination of shallow groundwater in the United States, with statistical verification of resulting risk groups.
In ranking and overlay. National Capital Territory (NCT) of Delhi occupies an area of km 2 which lies between 28°24′15″ and 28°53′00″ N latitudes and 76°50′24″ and 77°20′30″ E longitudes ().Administratively, it is divided into nine districts. This region is the part of Gangetic alluvial plain, and has an elevation ranging from to m above mean sea by: 2.
Introduction. Water is widely regarded as an essential natural resource (Vörösmarty et al., ) and a necessary resource for nearly all human activities ().It can be viewed as a resource for domestic use, as an input for agricultural and industrial uses, a sustainer of ecosystems, as well as a hazard in the form of floods and drought (Brown et al., ).Cited by: 7.
regional level; (2) to provide program management; (3) to inform land use decisions; and (4) to provide general education and awareness of a region’s hydrogeologic resources. In California and other states, vulnerability assessments can be used to obtain waivers for specific groundwater monitoring Size: 1MB.
evaluate the influence of single parameters on aquifer vulnerability assessments using DRASTIC and SINTACS. The procedure to imple ment the map removal and the single-parameter sensitivity analysis is described in this contribution and is tested in a part of the Piana Campana, southern Italy, where the aquifer vulnerability was assessed.
gravel. The alluvium and terrace aquifers typically have shallow water depths and are very permeable. Yields of wells in these aquifers range from 10 to 1, gpm. Vulnerability Assessment VULNERABILITY As used in this report, vulnerability refers to the sensitivity of groundwater to contamination, andFile Size: 2MB.
WVI scientists are leaders and experts in their respective fields. We have an impressive publication record specializing in water-resource vulnerability and sensitivity assessment, with over 50 peer-review journal articles, books, chapters, technical reports, fact.
A method for gauging aquifer vulnerability by a simplified classification of overlying soil and rock types would form the basis of national and regional vulnerability maps as part of an integrated.
Figure Ground water regions of the United States (A), and alluvial valley aquifers (B). Figure Principal aquifers of the United States. Figure Types of openings in selected water-bearing rocks. Figure In the conterminous United States, 24 regions were delineated by the USGS where the interactions of ground water and surface.
State-by-State Assessment of Aquifer Vulnerability and Sensitivity for the Conterminous U.S. Pettyjohn et al. Geologically based classification of surficial and relatively shallow aquifers.
Regional subsidence accompanying groundwater abstraction and compaction of susceptible aquifer systems Abstract Regional aquifer-system compaction and land subsidence accompanying groundwater abstraction in susceptible aquifer systems in the USA is a challenge for managing groundwater resources and mitigating associated hazards.
potential well fields, and aquifer sensitivity for each of the 48 conterminous states. To determine aquifer vulnerability, the regional subsurface system was classified according to its physical and hydrogeological characteristics.
The classification scheme developed for this report was based on.Comparison of two pesticide leaching indices. Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States.
Final report, 10 Apr Apr Wayne A. Pettyjohn has written: 'Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States' -- subject(s): Groundwater, Aquifers, Pollution 'Geohydrology of.