D
45

Poor Water Quality

Clayton, NC 27527

Johnston County · Population served: 156,749 · Data updated March 2026

Water Systems Serving This Area

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CLAYTON, TOWN OF
Surface water · Pop. 29,689
PWSID: NC0351020
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JOHNSTON CO-WEST
Surface water · Pop. 92,365
PWSID: NC0351070
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FLOWERS PLANTATION
Surface water · Pop. 11,643
PWSID: NC0351195
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COUNTRY SQUIRE MOBILE ESTATES
Groundwater · Pop. 85
PWSID: NC0392121
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JOHNSTON CO-EAST
Surface water · Pop. 22,967
PWSID: NC4051018

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
10.0
15 ppb 1 ppb Warning
Copper
1690.0
1300 ppb 300 ppb Exceeded

PFAS / Forever Chemicals

29 detected 8 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA15.6 pptNo standard500 pptUnregulated
PFBA14.4 pptNo standard500 pptUnregulated
PFOS14.1 ppt4 ppt4 pptExceeded
PFOS9.7 ppt4 ppt4 pptExceeded
PFOS9.5 ppt4 ppt4 pptExceeded
PFHxA9.2 pptNo standard400 pptUnregulated
PFPeA9.2 pptNo standardUnregulated
PFHxA8.8 pptNo standard400 pptUnregulated

Violation History (Last 5 Years)

20Total (5yr)
0Health-Based
8Major

Water Quality Summary

Understanding Your Water in Clayton

Tap water quality in Clayton, North Carolina (27527) 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 27 points below the North Carolina state average of 72. Compared to the national average (75), this area scores significantly lower. The area is served by 5 water systems providing water to approximately 156,749 people, using surface water and groundwater sources. Testing has found elevated levels of Lead, Copper that warrant attention. Notably, 8 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals. The area has 20 violations over the past 5 years, though none were classified as health-based.

Your Score 45/100 D
vs State 27 pts below North Carolina avg (72)
vs National 30 pts below national avg (75)

What a Grade D Means

A score of 45/100 signals poor water quality in Clayton, NC. 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
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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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.

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Copper in Your Water

Copper can leach into water from copper plumbing, especially in newer homes or when water is acidic.

Health Effects

Short-term exposure above 1,300 ppb can cause gastrointestinal distress. Long-term exposure may cause liver or kidney damage. People with Wilson's disease are especially vulnerable.

Common Sources

Copper pipes, fittings, and faucets are the most common source. Corrosive (low-pH) water accelerates copper leaching.

What You Can Do

If copper levels are elevated, flush pipes by running water for 15–30 seconds before use. Reverse osmosis and distillation systems effectively remove copper.

Common Questions

Frequently Asked Questions

Tap water in Clayton, North Carolina 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 27527 is served by 5 water systems using surface water, groundwater sources, providing water to approximately 156,749 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 10.0 ppb in Clayton, North Carolina. 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 — 29 PFAS compounds were detected in water serving Clayton, North Carolina, and 8 exceed 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 Clayton, North Carolina have received 20 violations in the last 5 years. 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, copper), residents in Clayton, North Carolina 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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