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Piper Trilinear Diagram for Hydro-chemical Classification for the Groundwater Analysis

Piper Trilinear Diagram for Water Quality and Hydro-geochemical Analysis of groundwater is very essential tools even today’s ai evolution.

Piper triinear diagram step by step procedure for the hydrological geochemical analysis of groundwater.

Before going to the step we need to prepare for the major cation and anion in percentage value meq/l.

Data we need

Major Cation(%meq/l)Major Anions (%meq/l)
Ca50HCO370
Mg25SO415
Na+K25Cl25

Procedure

Step 1:

Convert the Mg/l data for meq/l data for all the sample. Know how to convert the mg/l to meq/l. Convert this meq/l data to the percentage of %meq/l. See the data table above.

Link How to convert mg/l to meq/l

Now, plot the data for the cation as like as the fig below.

Cation Plot in Piper Trilinear Diagram
Fig 1. Piper Trilinear Diagram Cation

Now, plot the anion %meq/l data in the triangle shape of the piper trilinear diagram. Fig 2

Piper Trilinear Diagram Anion Plot
Fig 2. Piper Trilinear Diagram Anion

Plot the data for the Diamond area.

Piper Trilinear Diagram Plot
Fig 3: Piper Trilinear Diagram Diamond area
Piper Trilinear Diagram Diamond Alkaline Vs Alkaline Earth 2
Fig 4: Piper Trilinear Diagram
Piper Trilinear Diagram Diamond Strong acid vs weak Acid 2
Piper Trilinear Diagram Diamond Strong acid vs weak Acid

Interpretation of the data