D
45

Poor Water Quality

Williamson, WV 25661

Mingo County · Population served: 4,819 · Data updated March 2026

Water Systems Serving This Area

🏔
WILLIAMSON UTILITY BOARD
Surface water · Pop. 2,660
PWSID: WV3303009
🏔
MINGO COUNTY PSD - NAUGATUCK
Surface water · Pop. 2,159
PWSID: WV3303029

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.6
15 ppb 1 ppb Passed

Violation History (Last 5 Years)

504Total (5yr)
36Health-Based
225Major

Water Quality Summary

Understanding Your Water in Williamson

Tap water quality in Williamson, West Virginia (25661) receives an overall grade of D (Poor) with a score of 45 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 22 points below the West Virginia state average of 67. Compared to the national average (75), this area scores significantly lower. The area is served by 2 water systems providing water to approximately 4,819 people, using surface water sources. Over the past 5 years, water systems here have accumulated 504 violations, including 36 health-based violations.

Your Score 45/100 D
vs State 22 pts below West Virginia avg (67)
vs National 30 pts below national avg (75)

What a Grade D Means

A score of 45/100 signals poor water quality in Williamson, WV. 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 Williamson, West Virginia receives a grade of D (Poor) with a score of 45/100. 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 25661 is served by 2 water systems using surface water sources, providing water to approximately 4,819 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 levels in Williamson, West Virginia are 0.6 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

No PFAS ("forever chemicals") were detected in water systems serving Williamson, West Virginia during the most recent EPA monitoring period (UCMR5). However, not all water systems have been tested for all PFAS compounds, and new contamination can occur over time.

Water systems serving Williamson, West Virginia have received 504 violations in the last 5 years, including 36 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.

Water in Williamson, West Virginia shows no major contaminant concerns based on available data. A basic carbon filter can improve taste and reduce chlorine. For extra peace of mind, an NSF-certified pitcher filter or faucet-mount filter provides an affordable layer of protection.

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