Water Quality in Texas
May 17, 2026

Texas ranks among the top six hardest-water states in the country. It is one of the most widespread and underaddressed household problems in the state. With average hardness levels exceeding 200 PPM, well above the USGS threshold of 180 PPM for "very hard," Hard water in Texas consequences go beyond faucet buildup: hard water affects skin, shortens appliance lifespan, increases energy costs, and gradually damages plumbing.

Quick Summary

  • Texas hard water has a concentration greater than 200 ppm and is known as “very hard water” as per the USGS

  • The reason for hard water is the presence of calcium and magnesium due to limestone formations

  • At home, the impact of hard water includes limescale formation, inefficiency in appliances, and corrosion of pipes

  • Hard water skin problems in Texas include dryness, irritation, and increased eczema risk

  • Solutions include whole-house water softeners and RO systems

  • Under-sink RO systems are effective for drinking water in hard water areas. The system should