D
50

Poor Water Quality

Grayson, KY 41143

Carter County · Population served: 79,793 · Data updated March 2026

Water Systems Serving This Area

🏔
ASHLAND WATER WORKS
Surface water · Pop. 44,402
PWSID: KY0100011
🏔
BIG SANDY WATER DISTRICT
Surface water · Pop. 13,044
PWSID: KY0100944
🏔
GRAYSON UTILITY COMMISSION
Surface water · Pop. 10,950
PWSID: KY0220164
🏔
RATTLESNAKE RIDGE WATER DISTRICT
Surface water · Pop. 11,397
PWSID: KY0220555

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
14.0
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

4 detected 1 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
GenX (HFPO-DA)25.0 ppt10 ppt10 pptExceeded
PFPeA24.0 pptNo standardUnregulated
PFBS3.7 ppt2000 ppt100 pptBelow limit
PFPeA3.3 pptNo standardUnregulated

Violation History (Last 5 Years)

17Total (5yr)
17Health-Based
0Major

Water Quality Summary

Understanding Your Water in Grayson

Tap water quality in Grayson, Kentucky (41143) receives an overall grade of D (Poor) with a score of 50 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 34 points below the Kentucky state average of 84. Compared to the national average (75), this area scores significantly lower. The area is served by 4 water systems providing water to approximately 79,793 people, using surface water sources. Testing has found elevated levels of Lead that warrant attention. Notably, 1 PFAS compound exceeds EPA limits — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 17 violations, including 17 health-based violations.

Your Score 50/100 D
vs State 34 pts below Kentucky avg (84)
vs National 25 pts below national avg (75)

What a Grade D Means

A score of 50/100 signals poor water quality in Grayson, KY. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Grayson, Kentucky receives a grade of D (Poor) with a score of 50/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 41143 is served by 4 water systems using surface water sources, providing water to approximately 79,793 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Lead was detected at 14.0 ppb in Grayson, Kentucky. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

Yes — 4 PFAS compounds were detected in water serving Grayson, Kentucky, and 1 exceeds EPA maximum contaminant levels. PFAS are persistent chemicals linked to cancer, immune system effects, and developmental issues. A reverse osmosis or activated carbon filter certified for PFAS removal is recommended.

Water systems serving Grayson, Kentucky have received 17 violations in the last 5 years, including 17 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in Grayson, Kentucky should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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