Easy-to-understand water quality summaries for all 50 states — generated from EPA Community Water System data and analyzed for your safety.
Showing 50 reports— states with the most urgent water safety concerns appear first
15 water systems analyzed
North Dakota has reported a very high number of water system violations. Residents should be aware of elevated levels of chemicals like TTHMs and arsenic in some areas.
Delaware has experienced a high number of EPA violations, particularly regarding chemicals like TTHMs. Residents should be aware that water quality issues have been documented in the state.
Hawaii's water quality has faced many challenges, with 297 total violations reported. While lead levels remain low on average, residents should be aware of past issues with disinfection byproducts in some areas.
New Hampshire shows high average lead levels in tap water samples. While there are no chemical violations, residents should take steps to reduce lead exposure.
Pennsylvania's average lead levels are higher than the EPA action level, so residents should take steps to protect themselves. While there are no chemical violations, residents should be mindful of their plumbing.
10 water systems analyzed
Vermont maintains a solid water safety record with no reported violations. While lead levels are higher than in some states, they remain within safe legal ranges.
New York's water systems are performing well and meeting all federal safety requirements. There were no reported violations for chemicals like lead, arsenic, or PFAS.
Rhode Island's water supply is meeting federal safety goals with no violations. While testing is ongoing, current data confirms that chemical levels are safe.
12 water systems analyzed
Alabama's water supply is generally safe, though there are no major violations currently reported. While average lead levels are low, some systems have moderate to high risk potential.
California's water systems are currently in compliance with zero recorded violations. While thousands of lead samples have been tested, average results remain well below safety limits.
Arkansas water is kept in compliance with safety standards, with no recent EPA violations recorded. Testing shows lead levels remain below the national action level.
Maryland is maintaining safe water standards with no violations recorded for major contaminants. Although lead levels are present, they are well within safety limits.
Montana's public water supplies are currently meeting safety standards set by the EPA. No violations were recorded for major chemical pollutants.
Water in Colorado is of high quality, with no EPA violations reported across the monitored systems. Lead testing confirms levels are well below safety guidelines.
Kentucky water quality remains safe and compliant, with no reported violations. The state continues to provide high-quality water to its residents.
Water quality in Iowa is currently stable, with no reported violations for key contaminants. Residents can have confidence that their tap water is meeting safety standards.
Indiana maintains safe water quality across most of its systems with zero reported violations. While one system is classified as moderate risk, the overall state water safety remains strong.
Maine's water systems currently meet safety standards. No recent violations were reported for harmful chemicals like arsenic, PFAS, or TTHMs.
South Carolina's water systems are performing well and meeting all federal safety standards. Recent testing shows no concerns regarding common contaminants.
New Jersey's water supply is currently meeting all federal safety standards. Recent testing shows that common contaminants like lead are well within safe limits.
29 water systems analyzed
Florida maintains high water safety standards with no recorded violations. Lead levels are consistently low across all tested water systems.
New Mexico maintains a safe water supply with no reported violations. Residents can be confident that their water meets current federal safety rules.
Massachusetts maintains high water quality standards with no reported violations. Residents can rely on their local utilities to provide safe, clean tap water.
Minnesota's water supply is currently meeting all EPA safety requirements. No violations for harmful substances were detected in the latest data.
Ohio's public water systems are currently meeting all national safety standards. Tests show that lead and other contaminants are well below the limits set by the EPA.
Alaska's water quality is excellent, with no reported EPA violations found. Tests show that lead levels are well within safe limits across the state.
Arizona maintains a very high standard for water safety with no violations found. Lead levels are low, and residents can rely on their public water systems.
Illinois water systems are meeting safety standards with no violations reported. Testing shows that harmful contaminants are being kept at safe, legal levels.
South Dakota's water supply is very safe with no recorded violations of health standards. Tests show that lead levels remain well within the safety limits.
Tennessee maintains high water quality standards with no reported violations. Residents can trust that their drinking water is currently meeting all safety requirements.
Water in Utah is safe, with no health-based violations found in the state's systems. Testing confirms that lead and other harmful chemicals are kept at low levels.
West Virginia has a clean record for water safety, with no violations for harmful contaminants. Ongoing testing shows lead remains at low, safe levels.
Texas water systems show no current violations of safety rules. While recent lead testing data was not available, the system has no recorded issues with major harmful chemicals.
Washington provides safe drinking water with no violations for dangerous chemicals. Extensive testing shows that lead is kept well within the allowed safety limits.
Wisconsin's water is safe, and the state has reported zero violations of major health standards. Lead levels are monitored frequently across a high number of samples.
13 water systems analyzed
Virginia's water remains safe for use, as there are no active violations for major contaminants. Testing shows lead levels are monitored closely and stay below legal limits.
Connecticut's water remains safe with no violations reported. While there is no recent data on lead levels from tap samples, there are no reported issues with chemical contaminants.
Michigan residents benefit from water systems that are currently meeting federal safety standards. There have been no reported violations for major chemical contaminants recently.
Oregon's water systems are safe and are meeting all federal regulations. No violations were reported for harmful chemicals or lead in the recent data.
Idaho water systems are performing well, with no violations recorded for the main contaminants. The tap water consistently meets federal safety guidelines.
Mississippi water systems are currently in compliance with federal safety laws. There are no active violations for chemicals like arsenic or PFAS.
Nebraska's public water systems are performing well and meeting all EPA safety standards. No violations for chemicals have been reported.
1 water systems analyzed
Georgia has excellent water safety records with no reported violations. Lead levels from testing are safe, and the water system is rated as low risk.
Water in Oklahoma is meeting safety goals with no reported violations. The data shows that your drinking water is currently clean and safe to consume.
Water in North Carolina is currently meeting all EPA federal health standards. There were no reported violations for chemical contaminants in recent data.
Louisiana water systems are performing well, with no violations found for regulated contaminants. You can be confident that your water supply is currently meeting safety requirements.
Water quality in Missouri remains stable with no active violations for chemical contaminants. Testing shows that public water supplies are meeting safety goals.
Nevada's water quality is very good and follows all federal safety standards. Tests show that harmful chemicals are not a current concern for the water systems.
Kansas has a clean record for water safety with no violations reported. Residents are receiving water that meets all federal health standards.
11 water systems analyzed
Wyoming's water is safe for all residents, with no recorded violations of health standards. Regular testing proves that contaminants like lead are kept at low, healthy levels.
