3 edition of Modeling approaches for assessing the risk of nonpoint-source contamination of ground water found in the catalog.
Modeling approaches for assessing the risk of nonpoint-source contamination of ground water
by U.S. Dept. of the Interior, U.S. Geological Survey, Information Services [distributor] in Denver, Colo
Written in English
|Statement||by Bernard T. Nolan|
|Series||U.S. Geological Survey open-file report -- 98-531|
|Contributions||Geological Survey (U.S.)|
|The Physical Object|
|Pagination||iii, 15 p.|
|Number of Pages||15|
Evaluating agricultural nonpoint-source pollution using integrated geographic information systems and hydrologic/water quality model  Tim, U.S. Jolly, R. Access the full textCited by: Although access to clean and potable water is a requirement for healthy living, the constant release of non-point source pollutants into water bodies has resulted in water quality degradation. In a bid to curb this situation, water quality models are used as a tool. This study reviews 10 Cited by: 7.
Learn more about source water protection and planning.. EPA Resources. Consider the Source: A Pocket Guide to Protecting Your Drinking Water- The Consider the Source guide provides step-by-step instructions for conducting a source water assessment and developing a comprehensive source water protection program. It includes helpful information on funding sources, a best management practices . these were then used to determine the potential risk of groundwater to contaminants by nonpoint source pollution. Introduction Groundwater quality is important because it is the main source of drinking water for more than half of the United States. Groundwater is a contributor to the water system through wetlands, rivers, and streams.
committee identified three sobering laws in assessing groundwater vulnerability from non-point sources: (i) all groundwater is vulnerable; (ii) uncertainty is inher-ent in all vulnerability assessments, and (iii) the obvious may be obscured and the subtle indistinguishable. Decisions usually involve some risk (Color Plate 7-l). To bridge the risk. of Indiana. One of the major potential sources of groundwater contamination in this region is agriculture. However, the vulnerability of groundwater in this region to agricultural nonpoint source (NPS) pollution is not well understood. Vulnerability maps commonly available are rather crude ( scale) and are of questionable Size: 9MB.
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Modeling Approaches for Assessing the Risk of Nonpoint-Source Contamination of Ground Water By Bernard T. Nolan Abstract A review of modeling approaches to assess the risk of ground-water contamination indicated that stochastic solute-transport models can be effectively used to analyze uncertainty associatedCited by: 4.
Get this from a library. Modeling approaches for assessing the risk of nonpoint-source contamination of ground water. [Bernard T Nolan; Geological Survey (U.S.)]. between point source pollution and nonpoint source pollution of groundwater require that assessment methods, monitoring approaches, and regulatory frameworks for nonpoint source control do not simply copy the approaches taken in the point source arena, but that methods be developed speciﬁcally for nonpoint sources of groundwater.
Cited by: In the last two decades, nonpoint source pollution (NPS) has become a topic for research that resulted in the development of numerous models and modeling techniques.
Most models simulate hydrologic, chemical, and physical processes involved in the entrainment and transport of Cited by: Regional-Scale Assessment of Non-Point Source Groundwater Contamination Chapter in Hydrological Processes 12(6) January with 81 Reads How we measure 'reads'.
 Understanding the long‐term effect of nonpoint source (NPS) pollution on groundwater of agricultural regions is an increasing challenge of global importance. A novel groundwater modeling framework is developed to assess and evaluate the dynamic, spatio‐temporally distributed linkages between nonpoint sources above a groundwater basin and groundwater discharges to wells, streams, or Cited by: The regulatory agencies of towns and counties face the problem of finding a methodology for assessing the ground-water contamination potential of a large number of agricultural pesticides.
Environmental pollution has many facets, and the resultant health risks include diseases in almost all organ systems. Thus, a chapter on air and water pollution control links with chapters on, for instance, diarrheal diseases (chapter 19), respiratory diseases in children and adults (chapters 25 and 35), cancers (chapter 29), neurological disorders (chapter 32), and cardiovascular disease Cited by: Written by leading experts, the book includes topics such as: nitrate and phosphorus pollution, pesticide contamination, erosion and sedimentation, water-table management, and watershed management.
The authors discuss the effects of agricultural run-off - one of the most intransigent problems now faced by environmental engineers and hydrologists.
Nonpoint source pollution generated by agricultural production and city construction has been studied for decades, but very few researches have been conducted on the regional assessment of nonpoint source pollution in the acid rain regions, particularly relating to the control of pollutant in the drinking water source areas.
In this study, an integrated framework was applied to estimate Cited by: Table of Contents I. Introduction 1 II. Methods for Measuring Nonpoint Source Contaminated Ground-Water Discharge to Surface Water 4 A. Studies involving use of seepage meters or mini-piezometers to measure ground-water discharge to surface water 4 B.
Ground-water quality sampling and measurements of ground- water flow to estimate loading to surface water 24 C. Studies involving. This review focuses on uncertainty issues related to the Soil and Water Assessment Tool (SWAT) model, which is one of the most useful tools for simulating nonpoint source (NPS) pollution processes.
We considered numerous studies that addressed three types of uncertainty in detail, i.e., the model inputs, parameters, and model by: This assessment had three very limited purposes: (1) to describe the physical setting of ground water resources in the state, (2) to educate policy makers and the public about the potential for ground water contamination, and (3) to provide guidance for planning and assigning priorities to ground water protection efforts in the state.
Numerous papers have been written over the last 25 years regarding how best to sample ground water for different environmental program objectives. Ground water sampling is used to determine the extent of potential groundwater impacts from both point and non-point sources of contamination, as well as to assess the presence of naturally-occurring.
Nonpoint source pollution (NPSP) from agricultural runoff threatens drinking water quality, aquatic habitats, and a variety of other beneficial uses of water resources.
Agricultural runoff often contains a suite of water-quality contaminants, such as nutrients, pesticides, pathogens, sediment, salts, trace metals, and substances, contributing. NONPOINT SOURCE POLLUTION MANAGEMENT MODELS FOR REGIONAL GROUNDWATER QUALITY CONTROL FEBRUARY KIRK HATFIELD, B.S., UNIVERSITY OF IOWA M.S., UNIVERSITY OF IOWA Ph.D., UNIVERSITY OF MASSACHUSETTS Directed by: Professor Richard R.
Noss Nonpoint source pollution threatens the quality of enormous reservoirs of Size: 9MB. Despite the obvious strategic importance of ground water to human health and the environment, the EPA Science Advisory Board (SAB), in its influential report Reducing Risk, somewhat surprisingly concluded that ground water pollution represented a relatively low risk to natural ecology and human welfare (U.S.
EPA,page 13). Despite. D Studies involving hydrograph separation, regression analysis, or mass balance approaches to estimate the contribution of ground water to istream flow The papers cited in this section are summarized in Section III of.''An Annotated Bibliography of the Literature Addressing Nonpoint Source ; Contaminated Ground-Water Discharge to Surface.
Ground water pollution due to agriculture activities is a major source of concern. Vast agricultural lands constitute a nonpoint source for pollutants, such as pesticides and nitrogen fertilizers, which threatens ground water resources and the integrity of aquatic and terrestrial ecosystems that are sustained by ground water.
Development of cost effective tools for the management of. John Karl Bohlke. Research Hydrologist Earth Systems Processes Division. Email: and Busenberg, E.,Approaches for ground-water dating. T.,Stable isotope composition of dissolved O 2 undergoing respiration in a ground-water contamination gradient, U.S.
Geological Survey Water-Resources Investigations Report C. Ground-water flow, solute transport, and simulation of remedial alternatives for the water-table aquifer in Vega Alta, Puerto Rico; p. [Google Scholar] Sepúlveda N. Analysis of Methods to Estimate Spring Flows in a Karst Aquifer.
Ground Water. ; 47 (3)– [Google Scholar] Shoemaker WB, Kuniansky EL, Birk S, Bauer S, Swain by: Definition of a Nonpoint Source Nonpoint sources of water pollution are both diffuse in nature and difficult to define. Nonpoint source (NPS) pollution can generally be defined as the pollution of waters caused by rainfall or snowmelt moving over and through the ground.
As water moves over or through soil, it picks up and carries away.2 Assessment of Regional-Scale Nonpoint Source Ground-Water Vunerability depending on soil and chemical properties and their interac-tions, are vulnerable to ground-water contamination, require ground-water remediation, and are subject to increased farm production costs.