Interpreting Your Water Test Report

  • Parrott, Kathleen;
  • Ross, Blake

Virginia Cooperative Extension
Concentration of Hardness
In Grains per Gallon
In Milligrams per Liter
Relative Hardness
Below 3.5 Below 60 Soft
3.5 to 7.0 60 to 120 Moderately Hard
7.0 to 10.5 120 to 180 Hard
10.5 and above 180 and above Very Hard

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Publication #: 356-489

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