Frisco, TX Water Quality
Frisco, TX has 1 public water system serving 231,910 people. The average Water Safety Score is 100/100 (A). No health violations are on record.
Water Systems in Frisco
Frequently Asked Questions
Frisco has 1 public water system serving 231,910 people. The average Water Safety Score is 100/100. No health violations are currently on record. Check individual systems below for details.
Frisco water systems have detected 0 contaminants. No contaminant exceedances above EPA limits are currently recorded.
The Water Safety Score (0-100, grades A through F) weighs health-based violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Scores are based on EPA SDWIS data from the last 10 years.
Request your utility's Consumer Confidence Report (CCR), consider an independent water test from a certified lab, and look into NSF-certified water filters for specific contaminants of concern. For lead, run cold water for 30 seconds before drinking.
Water quality data sourced from EPA's Safe Drinking Water Information System. City data aggregates all public water systems serving the municipality.
this entity is one of the data points covered by this site’s U.S. public drinking-water safety dataset. The detail above comes directly from the EPA Safe Drinking Water Information System (SDWIS); the context that follows situates the headline numbers against the broader distribution across U.S. public water systems.
Every number on this page links back to the EPA Safe Drinking Water Information System (SDWIS); the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public water systems with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: EPA Ground Water and Drinking Water, 2026.