Record Display for the EPA National Library Catalog
RECORD NUMBER: 531 OF 724
|OLS Field Name||OLS Field Data|
|Main Title||Regional assessment of aquifer vulnerability and sensitivity in the conterminous United States /|
|Author||Pettyjohn, Wayne A., ; Savoca, M. ; Self, D.|
|CORP Author||Oklahoma State Univ., Stillwater.;Robert S. Kerr Environmental Research Lab., Ada, OK.|
|Publisher||Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,|
|Report Number||EPA/600/2-91/043; EPA-R-815754|
|Subjects||Groundwater--Pollution--United States. ; Aquifers--United States.|
|Additional Subjects||Aquifers ; Ground water ; Water pollution abatement ; Regional analysis ; Water pollution control ; Environmental impact assessments ; United States ; Water management(Applied) ; Environmental protection ; Precipitation(Meteorology) ; Water supply ; Population density ; Maps ; Distribution patterns ; US EPA Regions 1-10|
|Collation||viii, 319 pages : illustrations, maps ; 28 cm|
The report provides, in a generalized, largely graphic format, a representation of ground-water vulnerability, precipitation distribution, population density, potential well yield, and aquifer sensitivity for each of the 48 conterminous states. A classification scheme is developed based on an assessment of the vulnerability of surficial and relatively shallow 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. Of this amount, 26.4 percent is Class Ia, 10.4 percent is Class Ib and Ib-v, 8.1 percent is Class Ic, and Class Id accounts for an additional 1.4 percent. The moderately vulnerable Class II aquifers cover about 1 percent of the United States, while the least vulnerable, Class III, makes up about 19 percent. The undefined systems, Class U, account for an additional 19 percent.
Distributed to depository libraries in microfiche. Shipping list no.: 93-0565-M. "August 1991." "EPA/600/2-91/043." "Funded wholly or in part by the United States Environmental Protection Agency under cooperative agreement CR-815754 to Oklahoma State University"--T.p. verso. Includes bibliographical references (p. 307-319). Microfiche.