Search Results for the EPA National Library Catalog

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Showing: Items 551 - 600
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Select Item Title Year Published
Communication strategy : national pesticide survey phase II. 1991
Comparison and feasibility study of methods for selecting study areas for exposure investigations : final report for Task 1-22 / 1986
Comparison of chlorofluorocarbon-age dating with particle-tracking results of a regional ground-water flow model of the Portland Basin, Oregon and Washington / 1997
Comparison of diffusion- and pumped-sampling methods to monitor volatile organic compounds in ground water, Massachusetts Military Reservation, Cape Cod, Massachusetts, July 1999-December 2002 2005
Comparison of ground-water quality in samples from selected shallow and deep wells in the central Oklahoma aquifer, 2003-2005 / 2006
Comparison of hydraulic conductivities for a sand and gravel aquifer in southeastern Massachusetts, estimated by three methods 1996
Comparison of pesticide root zone model predictions with observed concentrations for the tobacco pesticide metalaxyl in unsaturated zone soils / 1986
Comparison of two groundwater flow models-UNSATID and HELP / 1984
Comparison of vapor concentrations of volatile organic compounds with ground-water concentrations of selected contaminants in sediments beneath the Sudbury River, Ashland, Massachusetts, 2000 2002
Comparison of water samples from PTFE, PVC, and SS monitoring wells 1988
Compendium of ERT groundwater sampling procedures : interim final. 1991
Compendiums of the Environmental Response Team's (ERT) standard operating procedures (SOPs) for sampling and analytical protocols / 1991
Compilation of chemical quality data for ground and surface waters in Utah 1958
Compilation of geohydrologic data collected as part of the areal appraisal of ground-water resources near Branson, Missouri / 1989
Compilation of ground-water models / 1993
Compilation of ground-water models : project summary / 1993
Compilation of regional ground-water divides for principal aquifers corresponding to the Great Lakes basin, United States / 2006
Compilation of saturated and unsaturated zone modeling software (update of EPA/600/R-93/118 and EPA/600/R-94/028) : project summary / 1996
Compilation of saturated and unsaturated zone modeling software / 1996
Compilation of selected hydrologic data from the MX missile-siting investigation, east-central Nevada and western Utah / 1984
Compilation of water-quality data for the north coast limestone aquifers, Puerto Rico, 1951 to 1987 1988
Completed North American innovative remediation technology demonstration projects. 1997
Completed North American innovative remediation technology demonstration projects. 1996
Completion Report Brookings County Wellhead Protection Area Mapping Project. 1988
Complex mixtures and groundwater quality / 1993
Complexation of radionuclides with naturally occurring organic compounds in groundwater project summary / 1993
Computation of rate and volume of stream depletion by wells 1970
Computation of the time-varying flow rate from an artesian well in central Dade County, Florida, by analytical and numerical simulation methods / 1997
Computational methods in subsurface flow 1983
Computer estimates of natural recharge from soil moisture data, high plains of Colorado : completion report, OWRT project no. A-016 COLO 1975
Computer model SHARP, a quasi-three-dimensional finite-difference model to simulate freshwater and saltwater flow in layered coastal aquifer systems 1990
Computer models for two dimensional subterranean flows and pollutant transport 1982
Computer program (MODFLOWP) for estimating parameters of a transient, three-dimensional, ground-water flow model using nonlinear regression 1992
Computer program for calculating subregional water budgets using results from the U.S. Geological Survey Modular Three-Dimensional Finite-Difference Ground-Water Flow Model 1990
Computer software for converting ground-water and water-quality data from the National Water Information System for use in a geographic information system / 1991
Computer-model analysis of the use of Delaware River water to supplement water flow from the Potomac-Raritan-Magothy aquifer system in southern New Jersey 1980
Concentration and distribution of selected trace elements in the Maumee River Basin, Ohio, Indiana, and Michigan 1974
Concepts and models in groundwater hydrology 1972
Conceptual evaluation of regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states 1991
Conceptual evaluation of regional ground-water flow in the carbonate-rock province of the Great Basin, Nevada, Utah, and adjacent states / 1995
Conceptual frameworks for ground-water quality monitoring / 1997
Conceptual hydrogeologic framework of the shallow aquifer system at Virginia Beach, Virginia 2002
Conceptual model and numerical simulation of the ground-water-flow system in the unconsolidated sediments of Thurston County, Washington 1999
Conceptual models of flow and transport in the fractured vadose zone 2001
Conceptualization and analysis of ground-water flow system in the coastal plain of Virginia and adjacent parts of Maryland and North Carolina 1990
Conditional approval of draft 208 plan / 1978
Conference on surface and borehole geophysical methods and ground water instrumentation, October 15-17, 1986, Denver Colorado. 1986
Conference proceedings of the national RCRA refinery workshop : forum on groundwater remediation. 1998
Configuration of the water table in Nebraska map / 1954
Confining layer study / 1984
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