well_decommission

(This module is available only in EVS PRO and MVS)

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General Module Function

Groundwater contamination sites worldwide are engaged in regular sampling of monitoring wells with a typical cost of $1,500 per well per sampling event. Many of these wells are redundant or geostatisticaly insignificant and can be decommissioned. The well_decommission module analyzes all available data and quantifies the impact to site assessment quality of removing each well. The well_decommission module offers the following functionality:

  1. Provides an easy to use method to determine which, if any, wells can be decommissioned.

  2. Performs baseline analysis using all data.

  3. Provides a justifiable approach for determining candidate wells for decommissioning.

  4. Can save thousands of dollars per year for each well identified for decommission.

Module Input Ports

  1. external_grid (Blue/Black): This port allows a grid to be imported into the module for the purposes of kriging. If a grid is imported the selected file will be ignored for gridding purposes.

  2. Filename (Yellow/Blue/Yellow): This port allows for the sharing of filenames between modules.

Module Output Ports

  1. decommission_file (Yellow/Blue/Yellow): This port allows for the sharing of the name of the well decommission file that is created after the analysis at each cycle is complete.

  2. status_string (Dark Blue): This port exports a string representing the status of the module while it is running. This string is useful for the making of titles.

  3. analyte_name (Dark Blue): This port exports a string representing the analyte name. This string is useful for the making of titles.

  4. target_conc (Dark Red): This port exports a float representing the target concentration. This float is useful for the making of titles.

  5. display_name (Black): This port exports a string representing the type of display. The type of display is set in the Display Options panel.

  6. Output_object(Red): This port outputs a renderable geometry.

 

image\welldecompanel.jpg

Module Control Panel

The control panel for well_decommission is shown in the figure above. This module is a macro of two customized and integrated modules:

Krig_2D

post_samples

A complete description of the windows and options for each of these modules is given in their respective help and is not repeated here. In general you may find some options that are not present in Well Decommission and those were removed because they are not relevant for the function of Well Decommission.

Otherwise the function of each of the sub-modules is nearly identical to their counterparts listed above.

Well Decommission Options

The Read Data File button allows the user to read in the selected *.csv, *.gwc, or *.geo file.

The Data Component slider selects which data component from the file to run the well_decommission algorithm on.

The Target Conc. is the isolevel (in real not log units) that is to be used for the decommissioning analysis. This should normally be the EPA reporting level.

The Run Decommission Cycles toggle when unchecked will run a single baseline analysis. With it checked it will run through a series of calculations that sequentially drop each of the monitoring wells in the input data file.

The Add Legend to Application button will automatically instance a Legend module and connect it both to the well_decommission module and to the Viewer. If no Viewer is instanced it will report an error that it cannot find the Viewer.

The Add Titles to Application button will automatically instance both a string_format module and a Titles module. And connect these both to the well_decommission module and the Viewer.If no Viewer has been instanced it will report an error that it cannot find the Viewer.

The Display Options toggle will bring up the Display Options window shown below.

image\well_decom_display.jpg

Display Options

The Sphere Display Component will change which component the spheres from post_samples are colored by.

The Mass Scale Factor is applied to the Deviation of the Min Mass, the Nominal Mass, and the Max Mass. It is used to scale these values, into more useful units.

The Min Plume can have its Visible state toggled on or off, as well as having its color set.

The Nominal Plume can have its Visible state toggled on or off, as well as having its color set.

The Max Plume can have its Visible state toggled on or off, as well as having its color set.

The kriging results can be displayed by checking the Visible toggle after its name, this option is off by default.