B
81

Good Water Quality

Humboldt, TN 38343

Gibson County · Population served: 104,405 · Data updated March 2026

Water Systems Serving This Area

🌊
JACKSON WATER SYSTEM
Groundwater · Pop. 91,111
PWSID: TN0000299
🌊
HUMBOLDT UTILITIES-WATER DEPT
Groundwater · Pop. 9,908
PWSID: TN0000314
🌊
GIBSON CO MUN WATER DIST #4
Groundwater · Pop. 3,386
PWSID: TN0000813

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
1.7
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

3 detected 2 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOS20.0 ppt4 ppt4 pptExceeded
PFHxS16.3 ppt10 ppt10 pptExceeded
PFBS3.7 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

2Total (5yr)
0Health-Based
0Major

Water Quality Summary

Understanding Your Water in Humboldt

Tap water quality in Humboldt, Tennessee (38343) receives an overall grade of B (Good) with a score of 81 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Tennessee state average of 81. The area is served by 3 water systems providing water to approximately 104,405 people, using groundwater sources. Testing has found elevated levels of Lead that warrant attention. Notably, 2 PFAS compounds exceed EPA limits — a significant concern given the persistent nature of these chemicals.

Your Score 81/100 B
vs State 0 pts below Tennessee avg (81)
vs National 6 pts above national avg (75)

What a Grade B Means

A score of 81/100 means the water in Humboldt, TN is generally good and meets EPA standards, with only minor areas of concern. There may be low levels of detectable contaminants or a small number of non-critical violations. Most residents can feel comfortable with their tap water quality, though basic filtration can provide an extra layer of protection.

Groundwater: drawn from underground aquifers via wells

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

Based on EPA data, tap water in Humboldt, Tennessee receives a grade of B (Good) with a score of 81/100. This indicates the water meets federal standards and has relatively few concerns. However, individual homes may still have localized issues such as lead from old plumbing.

ZIP code 38343 is served by 3 water systems using groundwater sources, providing water to approximately 104,405 people. Groundwater is naturally filtered through rock and soil, often requiring less treatment. However, it can be vulnerable to contamination from underground sources like naturally occurring arsenic, nitrates from agriculture, or PFAS from industrial sites.

Lead was detected at 1.7 ppb in Humboldt, Tennessee. 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 — 3 PFAS compounds were detected in water serving Humboldt, Tennessee, and 2 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 Humboldt, Tennessee have received 2 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), residents in Humboldt, Tennessee 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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