Water hardness by state
How hard is the water in Nuevo León?
Tap water in Nuevo León averages 21.9 grains per gallon (374 ppm calcium carbonate). That number determines how fast limescale coats your water heater, shower glass and appliances.
Sur la base de 24 mesures issues de 17 points de surveillance, 2020 → 2022.
What 21.9 gpg means in Nuevo León
This is very hard water — among the harshest levels measured. Scale attacks water heaters, dishwashers and pipes fast, shortening appliance lifespan and inflating energy bills. Protection is essential.
What it does to your home
Water heater: even a thin layer of scale insulates the heating element and drives energy use up.
Appliances: dishwashers, washing machines and coffee makers scale up and fail years early.
Fixtures and skin: white spots on faucets and glass, dry skin and dull hair after every shower.
Comment cette valeur a été obtenue
Mediana de 24 monitoreos de dureza total (DUR_TOT, mg/L CaCO3) en 17 sitios de agua subterránea de la RENAMECA (CONAGUA), 2020-2022. El abastecimiento mexicano proviene mayoritariamente de acuíferos — valor indicativo del recurso, no de cada red municipal.
CONAGUA — RENAMECA, Resultados de calidad del agua subterránea (consolidado 2012-2025)Statewide average — hardness varies by utility and season. Always verify with your local water quality report.
Frequently asked questions — Nuevo León
Is 21.9 gpg considered hard water?
On the US scale, 0–3.5 gpg is soft, 3.5–7 gpg moderately hard, 7–10.5 gpg hard and above 10.5 gpg very hard. At 21.9 gpg (374 ppm), water in Nuevo León is classified as Very hard water.
Does Nuevo León have a limescale problem?
Water in Nuevo León averages 21.9 gpg — Very hard water. The harder the water, the faster calcium carbonate deposits build up in water heaters, appliances and pipes. Below 3.5 gpg the risk is minimal; above 7 gpg scale becomes a running cost.
How do I find the exact water hardness at my address in Nuevo León?
Check your utility's annual water quality report (Consumer Confidence Report) or your water bill, or use our free interactive hardness map. Hardness can vary widely between neighboring utilities in Nuevo León.
Do I need a salt-based water softener at 21.9 gpg?
Not necessarily. Salt softeners add sodium to your water and need constant refills. LIMPEO treats limescale with an electromagnetic field — no salt, no chemicals, no maintenance — and keeps healthy minerals in your drinking water.