Abstract: Disclosed herein are exemplified methods and systems for evaluating a contaminant plume so as to generate presentations of temporal and spatial changes in the contaminant plume that facilitates readily identifiable interpretations of subtle, though significant, changes in concentrations or mass of the plume overtime. Exemplified presentations of the changes in the contaminant plume can facilitate more accurate assessment of plume behavior as well as the beneficial identification (in a more readily and systematic manner) of actionable events at the plume, including identification of new contaminant sourcing, identification of effective or ineffective applied remediation (e.g., monitor progress of Monitored Natural Attenuation (MNA)), and identification of changing site location, among others.

Abstract: Disclosed are exemplified methods and systems that uses scientific and statistical basis to determine whether wells can be removed from a monitoring network and/or whether the frequency of well sampling can be reduced and/or whether the number of constituents being analyzed can be reduced. The exemplified method facilitates a more accurate and precise assessment of the sufficiency of the monitoring in decision making processes to modify the monitoring protocol of wells at a given contaminated site as well as to provide a defensible assessment and analysis that is empirical, graphical, and easy to understand.

Abstract: A method for evaluating the benefit of a remediation system, the method comprising calculating plume stability characteristics, determining a mass indicator trend line; determining a contaminant removed trend line, graphically displaying the mass indicator trend line and the contaminant removed trend line, and determining a remediation system benefit trend based on a graphical relationship of the mass indicator trend line and the contaminant removed trend line shown on the graphical display. Also, a method for analyzing a remediation system, the method comprising determining a remediation system benefit trend, determining a relative cost trend, determining a cost/benefit indicator, and categorizing the remediation system according to the remediation system benefit trend, the relative cost trend, and the cost/benefit indicator.

Abstract: A new environmental application, sometimes referred to as the LNAPL Removal Benefit Analysis is disclosed for evaluating the relative benefit of removing LNAPL from a site that has LNAPL and a related dissolved phase groundwater plume.

Abstract: A method for evaluating the benefit of a remediation system, the method comprising calculating plume stability characteristics, determining a mass indicator trend line; determining a contaminant removed trend line, graphically displaying the mass indicator trend line and the contaminant removed trend line, and determining a remediation system benefit trend based on a graphical relationship of the mass indicator trend line and the contaminant removed trend line shown on the graphical display. Also, a method for analyzing a remediation system, the method comprising determining a remediation system benefit trend, determining a relative cost trend, determining a cost/benefit indicator, and categorizing the remediation system according to the remediation system benefit trend, the relative cost trend, and the cost/benefit indicator.