文档介绍：Benefits of Reducing Domestic Well Nitrate Contamination fromConcentrated Animal Feeding Operations:A National Model of Groundwater ContaminationJeffrey K. Lazo,1 Donald M. Waldman,2 Thomas D. Ottem,1and William J. Wheeler31Stratus Consulting Inc., Boulder, CO2University of Colorado, Boulder, . EPA, Washington, DCPaper prepared for presentation at the American Agricultural Economics AssociationAnnual Meeting, Montreal, Canada, July 27-30, 2003Copyright 2003 by Jeffrey K. Lazo, Donald M. Waldman, Thomas D. Ottem, and WilliamJ. Wheeler. All rights reserved. Readers may make verbatim copies of this document mercial purposes by any means, provided that this copyright notice appears onall such paper presents an analysis of benefits to private drinking water well users from regulatorychanges for concentrated animal feeding operations (CAFOs). Combining a statistical model ofgroundwater quality with benefit estimates based on values available from the literature, wedevelop aggregate national benefit estimates for reduced well water contamination from changesin CAFO regulations. The statistical model is developed to explore truncation and selectionissues. We conduct a sensitivity analysis of aggregate benefit estimates to model estimation andbenefits transfer , concentrated animal feeding operations, nitrates, sensitivity analysis, selectiontruncation modelAcknowledgementsThanks are given to Robert S. Raucher, Marca Hagenstad, Megan Harrod, and Amy Gage ofStratus Consulting; Maurice Hall of CH2M Hill of Redding, California; and Linda Chappell . EPA for their support, input, and guidance on this work. The authors are solely responsiblefor any remaining views expressed in this paper are those of the authors and do not necessarily represent thoseof the . Environmental Protection Agency. In addition, although the research described in thispaper may have been funded entirely or in part by the . Envi