Potentiometric Surface Map from a Well CSV
Drop the gauging round in and the map is already drawn: water levels contoured, wells posted and labelled, flow arrows pointing down the computed gradient, and the interpolation method printed on the sheet where a reviewer can see it. If your file has a top-of-casing elevation and a depth to water rather than a head, the subtraction is done here — you do not need to add a column in Excel first.
Drop a CSV or an Excel file of your wells here
One row per well, with coordinates and whatever you want mapped. It is read in this tab and never uploaded.
A made-up site: fourteen wells gauged on 2026-03-14, on a local grid in metres. The file has a top-of-casing elevation and a depth to water and no groundwater elevation — that column is computed here. Two of the benzene results are non-detects.
Or paste the rows
Copy a block straight out of a spreadsheet — tabs, commas and semicolons all work, and you do not have to tell us which. A workbook you dropped appears here as text; editing it re-reads it as text.