C
63

Record-only indicator: C

Not a safety rating. Missing or old measurements can produce a high score.

Coverage: 6/6 mapped systems have a dated lead result; 0/6 have copper results; 2/6 have UCMR monitoring.

Stuart, FL 34997

Martin County · Population served: 104,105 · SDWIS 2026-07-21 · UCMR5 August 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

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MARTIN CO UTILITIES
Groundwater · Pop. 104,105

Lead: 4.0 ppb; period end 12/01/2023. Copper: not available ppb; period end unknown.

PWSID: FL4431891
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STUART, CITY OF - WATER PLANT
Groundwater · Pop. 16,841

Lead: 1.2 ppb; period end 12/01/2025. Copper: not available ppb; period end unknown.

PWSID: FL4430259
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ST. LUCIE FALLS
Groundwater · Pop. 499

Lead: 0.2 ppb; period end 12/01/2024. Copper: not available ppb; period end unknown.

PWSID: FL4434014
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NATALIE ESTATES MOBILE HOME PK #200
Groundwater · Pop. 250

Lead: 2.2 ppb; period end 12/01/2025. Copper: not available ppb; period end unknown.

PWSID: FL4430956
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SOUTH FORK HOMEOWNER UTIL CORP
Groundwater · Pop. 200

Lead: 0.0 ppb; period end 12/01/2025. Copper: not available ppb; period end unknown.

PWSID: FL4430484

Reported lead and copper results

ContaminantReported value or boundHistorical comparison valueInterpretationStatus
Lead
4.0 ppbPeriod end: 12/01/2023
15 ppb Largest reported value or bound among mapped systems; not necessarily the largest actual concentration. At/below comparison value

PFAS / Forever Chemicals

2 detected Below comparison values

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLInterpretationStatus
PFPeA12.0 pptNo standard—No federal MCL shown
PFHxA7.9 pptNo standard400 pptNo federal MCL shown

Violation History (Last 5 Years)

124Total (5yr)
4Health-Based
103Major

Public-record summary

Understanding Your Water in Stuart

Record-only indicator — incomplete or old records can produce a high score. A score of 100 is not a safety finding. Coverage: 6/6 mapped systems have a dated lead result; 0/6 have copper results; 2/6 have UCMR monitoring. Tap water quality in Stuart, Florida (34997) receives an record-only indicator of C (Mixed record-based signals) with a score of 63 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is roughly in line with the Florida state average of 67. The area is served by 6 water systems providing water to approximately 104,105 people, using groundwater sources. PFAS testing detected 2 compounds, all below the EPA final MCL values used for comparison. Over the past 5 years, water systems here have accumulated 124 violations, including 4 health-based violations.

Record-only score 63/100 C
vs State ▼ 4 pts below Florida avg (67)
Comparison limits No national safety ranking: coverage and service areas overlap.

What a Grade C Means

Grade C summarizes the records available to this model, not household safety. Missing, bounded or old measurements can produce a high score, including 100. Review coverage, dates and the current utility report before interpreting this indicator.

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.

Common Questions

Frequently Asked Questions

The record-only indicator is C (63/100). It cannot determine whether your tap water is safe. Missing, bounded or old measurements can produce a high score. Check the coverage and sampling dates below and your utility's current notices.

ZIP code 34997 is served by 6 water systems using groundwater sources, providing water to approximately 104,105 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.

The largest reported lead value or bound is 4.0 ppb, for the sampling period ending 12/01/2023. This is a system-level 90th-percentile record, not a measurement at your tap. Compare the sampling date and original utility report before interpreting it.

2 PFAS compounds were detected in water serving Stuart, Florida, with no result above the individual comparison values shown here; some compounds have no individual federal MCL. This comparison is informational: federal compliance timelines and the status of some PFAS standards are still evolving. Activated carbon or reverse osmosis filters can reduce some PFAS when appropriately certified and maintained.

Water systems serving Stuart, Florida have received 124 violations in the last 5 years, including 4 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.

This public-record indicator cannot select household treatment. Confirm your supplier, current utility report and tap-testing results first; match any treatment to a certified contaminant-reduction claim and follow its maintenance instructions.

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