F14/100
Grayson Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 22,347 residents · Kentucky
What's In Grayson's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
1
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
GRAYSON UTILITY COMMISSION
Population Served
10,950
Water Source
Surface Water
System ID
KY0220164
RATTLESNAKE RIDGE WATER DISTRICT
Population Served
11,397
Water Source
Surface Water
System ID
KY0220555
Frequently Asked Questions About Grayson Water
Is Grayson tap water safe to drink?
Grayson, Kentucky tap water receives a grade of F (14/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 68 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Grayson's water?
69 contaminants were tested in Grayson's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Grayson have any water quality violations?
Yes, Grayson has 68 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, TT, MR. 26 of these are health-based violations, which are the most serious category.
Do I need a water filter in Grayson?
Grayson water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Grayson's tap water come from?
Grayson's drinking water is sourced from surface water and supplied by GRAYSON UTILITY COMMISSION and 1 other water system(s). The system serves approximately 22,347 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Grayson's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Grayson's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Grayson's water compare to other cities in Kentucky?
Grayson's water quality score of 14/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Kentucky state page to see how all cities in the state compare.
What should I do if I'm concerned about Grayson's water quality?
If you have concerns about Grayson's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (GRAYSON UTILITY COMMISSION) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.