Site Vulnerability Assessment for Wellhead Protection Planning

A methodology is presented for assessing the relative risk of a given chemical inventory to produce a ground-water contamination event in accordance with wellhead protection (WHP) planning. Modeled after the U.S. Environmental Protection Agency's hazardous ranking system, the approach is one based on a vulnerability assessment incorporating factors for chemical quantity, storage, toxicity, and fate and transport characteristics. The ground-water vulnerability scoring system (GVSS) tool provides a means for ranking the various chemical holders within a delineated WHP (capture) zone with respect to their likelihood to produce a ground-water contamination event. The information generated by GVSS may be useful to land-use planners and water quality regulators in the development of future planning of commercial/industrial activities within a delineated WHP area and is a valuable tool for educating the general public regarding the issues of long-term preservation of the quality of ground-water supplies. In high...

[1]  Steven J. Haness,et al.  Evaluating the hazard ranking system , 1991 .

[2]  W. G. Knisel,et al.  GLEAMS: Groundwater Loading Effects of Agricultural Management Systems , 1987 .

[3]  J. Brown,et al.  Application of VLEACH to Vadose Zone Transport of VOCs at an Arizona Superfund Site , 1993 .

[4]  G. Marsily.  Quantitative Hydrogeology: Groundwater Hydrology for Engineers , 1986 .

[5]  W. F. Spencer,et al.  Behavior Assessment Model for Trace Organics in Soil: I. Model Description , 2003 .

[6]  J. Lehr.  TOXICOLOGICAL RISK ASSESSMENT DISTORTIONS: PART I , 1990 .

[7]  W. Lyman.  Handbook of chemical property estimation methods , 1982 .

[8]  R. Peralta,et al.  Assessing Pesticide Contamination to Ground Water: A Rapid Approach , 1991 .

[9]  David A. Chin,et al.  Risk Management in Wellhead Protection , 1994 .

[10]  E. Scott Bair,et al.  Delineation of Traveltime‐Related Capture Areas of Wells Using Analytical Flow Models and Particle‐Tracking Analysis , 1991 .

[11]  M. D. Lagrega,et al.  Hazardous Waste Management , 1994 .

[12]  W. Mcternan,et al.  Risk Assessment for Groundwater Pollution Control , 1990 .

[13]  T. Steenhuis,et al.  A screening method for preliminary assessment of risk to groundwater from land-applied chemicals , 1987 .

[14]  U. S. Tim,et al.  Risk‐Based Evaluation of Ground‐Water Contamination by Agricultural Pesticides , 1993 .

[15]  David E. Burmaster,et al.  It's Time to Make Risk Assessment a Science , 1991 .

[16]  G. Hornberger,et al.  Empirical equations for some soil hydraulic properties , 1978 .

[17]  W. Kastenberg,et al.  A framework for assessing public health risks of pesticide‐contaminated groundwater , 1993 .

[18]  David J. Cushman,et al.  Ground Water Modeling for Risk Assessment Purposes: Use of a Gaussian‐Distributed Transport Model and a Batch Flush Model , 1993 .

[19]  E. Scott Bair,et al.  A Monte Carlo-Based Approach for Determining Traveltime-Related Capture Zones of Wells Using Convex Hulls as Confidence Regions , 1991 .

[20]  John M. Shafer,et al.  Reverse Pathline Calculation of Time-Related Capture Zones in Nonuniform Flow , 1987 .

[21]  Joel Massmann,et al.  Groundwater contamination from waste management sites: The interaction between risk‐based engineering design and regulatory policy: 1. Methodology , 1987 .

[22]  Charles A. Wentz,et al.  Hazardous Waste Management , 1989 .