Use of Historical Pump-and-Treat Data to Enhance Site Characterization and Remediation Performance Assessment

Groundwater withdrawal and contaminant concentration data are routinely collected for pump-and-treat operations conducted at hazardous waste sites. These data sets can be mined to produce a wealth of information to support enhanced site characterization, optimization of remedial system operations, and improved decision making regarding long-term site management and closure. Methods that may be used to analyze and interpret pump-and-treat data to produce such assessments are presented, along with a brief illustration of their application to a site. The results presented herein illustrate that comprehensive analysis of pump-and-treat data is a powerful, cost-effective method for providing higher-resolution, value-added characterization of contaminated sites.

[1]  Jonathan B. Butcher,et al.  Estimation of Residual Dense NAPL Mass by Inverse Modeling , 1994 .

[2]  Ronald W Falta,et al.  Assessing the impacts of partial mass depletion in DNAPL source zones I. Analytical modeling of source strength functions and plume response. , 2005, Journal of contaminant hydrology.

[3]  M. Brusseau,et al.  Mass-removal and mass-flux-reduction behavior for idealized source zones with hydraulically poorly-accessible immiscible liquid. , 2008, Chemosphere.

[4]  Jianting Zhu,et al.  Simple screening models of NAPL dissolution in the subsurface. , 2004, Journal of contaminant hydrology.

[5]  M. Brusseau,et al.  Assessing the impact of source-zone remediation efforts at the contaminant-plume scale through analysis of contaminant mass discharge. , 2011, Journal of contaminant hydrology.

[6]  R. Naidu,et al.  Integration of traditional and innovative characterization techniques for flux-based assessment of dense non-aqueous phase liquid (DNAPL) sites. , 2009, Journal of contaminant hydrology.

[7]  Mark L Brusseau,et al.  Relationship between mass-flux reduction and source-zone mass removal: analysis of field data. , 2008, Journal of contaminant hydrology.

[8]  M. Brusseau,et al.  Impact of organic-liquid distribution and flow-field heterogeneity on reductions in mass flux. , 2010, Journal of contaminant hydrology.

[9]  M. Brusseau,et al.  Characterizing long-term contaminant mass discharge and the relationship between reductions in discharge and reductions in mass for DNAPL source areas. , 2013, Journal of contaminant hydrology.

[10]  J. Jawitz,et al.  Groundwater contaminant flux reduction resulting from nonaqueous phase liquid mass reduction , 2005 .

[11]  Linda M Abriola,et al.  Predicting DNAPL mass discharge from pool-dominated source zones. , 2010, Journal of contaminant hydrology.

[12]  Mark L Brusseau,et al.  Analysis of Soil Vapor Extraction Data to Evaluate Mass‐Transfer Constraints and Estimate Source‐Zone Mass Flux , 2010, Ground water monitoring & remediation.

[13]  M. Brusseau,et al.  Source-zone characterization of a chlorinated-solvent contaminated Superfund site in Tucson, AZ. , 2007, Journal of contaminant hydrology.

[14]  Mark L. Brusseau,et al.  Nonideal transport of reactive solutes in heterogeneous porous media: 5. Simulating regional‐scale behavior of a trichloroethene plume during pump‐and‐treat remediation , 1999 .

[15]  M. Brusseau,et al.  Impact of in situ chemical oxidation on contaminant mass discharge: linking source-zone and plume-scale characterizations of remediation performance. , 2011, Environmental science & technology.

[16]  M. Brusseau.  Application of a multiprocess nonequilibrium sorption model to solute transport in a stratified porous medium , 1991 .

[17]  F. Compère,et al.  Transport and retention of clay particles in saturated porous media. Influence of ionic strength and pore velocity. , 2001, Journal of contaminant hydrology.