ESdat outputs will calculate a LNAPL density corrected water elevation for you given a depth to water level, a depth to NAPL (LNAPL), and a reference point (Top of Casing or surface elevation).
ESdat checks the following data tables for the density to used for these calculations, in the following order:
•Well-specific values must be entered into the Chemistry Results table with a ChemCode of 'LNAPL_Rel_Density’. The Location and WellCode must be specified for associated Chemistry_Sample. If not imported as part of the Laboratory data the Histocial / Other Chemistry template can be used.
•For Locations/Wells not specified individually as described above a site-specific relative density can be entered into the table called ‘Site_Properties’. The property will be "LNAPL_Rel_Density", and the value will be the relative density.
•If no value is entered for a Well, nor for the site, a default value of 0.76 is used.