RENO, Nevada is a large city with 457,251 residents served by a network of 22 public water systems. Water service covers ZIP codes 89502, 89503, 89506, 89508, 89509, 89510, and 3 more.
RENO has accumulated a significant number of EPA health-based violations. Reviewing the contaminants involved, requesting your utility's Consumer Confidence Report, and using certified point-of-use filtration is strongly advisable.
EPA reporting identifies Lead, Uranium, Coliform Bacteria, Arsenic, and Coliform Bacteria among the regulated contaminants associated with RENO's recent health-based violations. Each contaminant has different sources, health implications, and recommended mitigation steps — links to the full EPA reference for each are listed alongside the violation history below.
RENO's 296 violations is above the Nevada average of 11.7 per city — worth reviewing the contaminant breakdown below.
Last updated: 2026-05-18 · Source: EPA SDWIS
About this data
This overview reflects EPA SDWIS data published as of 2026-05-18. It covers active Community Water Systems (CWS) that exceeded federal Maximum Contaminant Levels during the past five-year EPA reporting window. For up-to-the-minute information, request a current Consumer Confidence Report from your utility, or review the EPA's public dashboard.