Water & Environmental

Water Chemistry & Stability Calculators & Design Tools

Langelier (LSI) & Ryznar indices, carbonate alkalinity speciation & pH adjustment.

AWWA Manual M58 / Standard Methods 2330

Langelier Saturation Index (LSI) & Ryznar Stability Index (RSI)

Water scaling tendency vs corrosivity evaluation based on pH, temp, TDS, calcium & alkalinity

Launch Calculator → Standard Methods 2320 B / AWWA Water Chemistry

Carbonate Alkalinity Speciation

Hydroxide (OH⁻), Carbonate (CO₃²⁻), and Bicarbonate (HCO₃⁻) ion distribution

Launch Calculator →