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
10 water systems analyzed
South Dakota's water safety is currently of serious concern due to thousands of recent quality violations. While average lead levels are within safety limits, some systems have reported dangerous spikes in contaminants like arsenic.
15 water systems analyzed
Kentucky has a high number of water system violations and concerning levels of disinfection byproducts. Residents should take extra care to ensure their drinking water is safe.
Water in Iowa shows significant concerns with a very high number of reported violations and dangerous levels of arsenic in some areas. Residents should be aware of these risks and take steps to protect their household water.
Minnesota's water systems have faced many safety violations recently. Some areas have reported levels of arsenic and TTHMs that are higher than what the EPA allows.
Mississippi's water system has seen a high number of safety violations. Some areas have levels of arsenic and TTHMs that exceed safe drinking water limits.
Delaware has experienced some issues with water quality, specifically regarding chemical byproducts. While lead levels are low, residents should be aware of reported violations in some areas.
North Dakota has experienced a high volume of water safety violations. Some testing showed very high levels of arsenic and TTHMs, which are unsafe to drink.
Nebraska's water systems have failed to meet safety standards many times recently. Levels of arsenic and TTHMs have been found to be well above legal limits in some areas.
Nevada's water systems have faced significant challenges with 12,608 violations reported. Residents should be cautious as some tests showed levels of arsenic and TTHMs that are far higher than federal safety limits.
Rhode Island has experienced significant water safety issues with over 4,600 violations reported. Testing identified high levels of TTHMs, which are byproducts of water treatment, far exceeding federal safety limits.
South Carolina reports widespread water safety issues with over 4,000 violations found. Levels of TTHMs have been measured at over 10 times the legal safety limit, making caution necessary for residents.
Alabama's water quality is a significant concern due to high lead levels and chemical violations. Many water systems are not meeting safety standards, posing potential health risks to residents.
Arkansas water systems are facing serious safety issues, including high levels of arsenic and chemical contaminants. Many residents should take extra steps to ensure their water is safe to drink.
Hawaii's water system has shown some issues with disinfection byproducts in recent testing. While lead levels remain low, the high number of overall violations indicates that local water systems need better oversight.
New Hampshire's lead levels are currently a concern, with average levels testing higher than in many other states. While other chemicals did not trigger violations, households should take steps to protect against lead.
Pennsylvania's water safety is concerning, specifically regarding lead. While there are no violations for other chemicals, the average lead level is higher than in many other states and warrants caution.
New York's water is generally safe and compliant with federal rules. While lead is present at low levels, it remains within acceptable ranges based on thousands of tests.
Maryland provides safe drinking water with no record of federal violations. While lead levels are slightly higher than in some other states, they remain well within safe limits.
California water systems are currently performing well with no reported violations of safety limits. The water supply is reliable and meets standard health requirements.
Vermont is maintaining good water quality with no major chemical violations recently reported. While lead levels are slightly higher than in some other states, they are still within federal safety guidelines.
12 water systems analyzed
West Virginia's public water is clean and compliant with federal safety laws. There have been no reported violations for toxins like arsenic or PFAS, and lead levels are very low across tested homes.
11 water systems analyzed
Wyoming's water systems are currently in good standing with no safety violations reported. Testing shows that lead is well controlled and the water meets all current federal health limits.
Arizona provides safe drinking water with no reported violations. Residents generally receive high-quality water that meets all federal safety standards.
Tennessee's public water systems are currently meeting all federal safety requirements. Tests show lead levels are well below health action limits, and there were no reported violations for chemicals like arsenic or PFAS.
Public water in Texas is performing well with no recent violations found for major contaminants. Testing data shows that lead levels remain low across thousands of homes checked throughout the state.
Alaska's water quality is generally very good with no recorded violations of health standards. Residents can be confident that their drinking water meets current safety requirements.
Utah's water supply is meeting federal safety standards with no recorded violations for harmful chemicals. While lead is present at low average levels, it remains safely below federal action limits.
13 water systems analyzed
Virginia's water systems are currently meeting all health safety goals set by the EPA. No violations for chemicals like arsenic or PFAS were found, and lead levels are well within the safe range.
Oregon's water quality is high, with no recent violations found. Lead levels are low and the water supply is consistently meeting federal safety guidelines.
Oklahoma provides safe water to its residents with no violations reported. Testing shows that lead is well controlled and other chemicals remain within safe limits.
Ohio's water supply is very safe, showing very low lead levels and no record of recent safety violations. The data suggests high compliance across all state water plants.
Water systems in Washington are performing safely with no reported violations for dangerous chemicals. Lead testing shows that water at the tap is well within the limits set to keep residents healthy.
Wisconsin's public water supply is meeting federal safety requirements. Tests show no evidence of chemical violations, and average lead levels remain below the national safety standards.
Water in New Mexico is safe and in compliance with all federal quality standards. No violations for chemicals like arsenic or lead have been reported recently.
New Jersey's water supply is generally safe and free from recent major violations. Recent testing shows lead levels remain well within the safety limits set by the EPA.
Indiana maintains strong water quality standards across most of its systems. While most areas are safe, one system has been flagged as having moderate risks.
Colorado has a strong record for water safety with no violations currently reported. Residents are drinking water that stays well within the safety limits set by the EPA.
Connecticut provides safe and clean drinking water to its residents. No safety violations were reported, indicating high adherence to federal water quality standards.
North Carolina's water is safe to drink and follows current EPA standards. There are no active violations for harmful chemicals like lead or arsenic reported in this data.
Montana maintains a clean and safe water supply for its residents. No violations for dangerous chemicals were reported in the recent data.
29 water systems analyzed
Florida's water supply is safe and meets all federal health standards. No violations were recorded, ensuring residents receive high-quality water.
Water in Missouri is currently safe to drink based on the most recent EPA data. The state has recorded zero violations for harmful contaminants in its water systems.
1 water systems analyzed
Georgia maintains excellent water safety standards with no recorded violations. Residents have access to safe drinking water that meets all required federal guidelines.
Michigan's water systems are performing well and meeting safety standards. There are no recent record-breaking violations for dangerous chemicals in the water supply.
Maine's water supply is currently meeting all safety requirements. Residents should feel confident in the quality of their water based on recent EPA test results.
Idaho's water systems are currently performing well with no reported violations. Residents can feel confident that their water quality meets federal safety standards.
Massachusetts maintains high standards for water safety with no violations currently reported. The state's water systems are meeting all federal safety requirements.
Louisiana water systems are currently showing no violations, indicating that water quality is meeting federal safety standards. Residents can be confident in the current monitoring.
Illinois water systems are currently in good standing with no reported violations. The data suggests that water quality remains within safe, legal limits for major contaminants.
Kansas water systems are performing very well with no violations on record. The water supply is currently meeting federal safety requirements.
