A
87

Record-only indicator: A

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

Coverage: 7/7 mapped systems have a dated lead result; 0/7 have copper results; 1/7 have UCMR monitoring.

Kosciusko, MS 39090

Attala County · Population served: 9,646 · 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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CITY OF KOSCIUSKO
Groundwater · Pop. 9,646

Lead: 0.6 ppb; period end 12/31/2024. Copper: not available ppb; period end unknown.

PWSID: MS0040004
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CONEHOMA WATER ASSN #2
Groundwater · Pop. 1,500

Lead: 0.7 ppb; period end 12/31/2025. Copper: not available ppb; period end unknown.

PWSID: MS0040029
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CONEHOMA WATER ASSN #1
Groundwater · Pop. 1,495

Lead: 0.0 ppb; period end 12/31/2025. Copper: not available ppb; period end unknown.

PWSID: MS0040001
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THOMASTOWN WATER ASSOCIATION
Groundwater · Pop. 908

Lead: 0.6 ppb; period end 12/31/2020. Copper: not available ppb; period end unknown.

PWSID: MS0400009
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ZAMA WATER ASSOCIATION
Groundwater · Pop. 354

Lead: 0.4 ppb; period end 12/31/2017. Copper: not available ppb; period end unknown.

PWSID: MS0040011

Reported lead and copper results

ContaminantReported value or boundHistorical comparison valueInterpretationStatus
Lead
1.2 ppbPeriod end: 12/31/2025
15 ppb Largest reported value or bound among mapped systems; not necessarily the largest actual concentration. At/below comparison value

Violation History (Last 5 Years)

11Total (5yr)
0Health-Based
10Major

Public-record summary

Understanding Your Water in Kosciusko

Record-only indicator — incomplete or old records can produce a high score. A score of 100 is not a safety finding. Coverage: 7/7 mapped systems have a dated lead result; 0/7 have copper results; 1/7 have UCMR monitoring. Tap water quality in Kosciusko, Mississippi (39090) receives an record-only indicator of A (Lower record-based concern) with a score of 87 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 17 points above the Mississippi state average of 70. The area is served by 7 water systems providing water to approximately 9,646 people, using groundwater sources. The area has 11 violations over the past 5 years, though none were classified as health-based.

Record-only score 87/100 A
vs State ▲ 17 pts above Mississippi avg (70)
Comparison limits No national safety ranking: coverage and service areas overlap.

What a Grade A Means

Grade A 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 A (87/100). 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 39090 is served by 7 water systems using groundwater sources, providing water to approximately 9,646 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 1.2 ppb, for the sampling period ending 12/31/2025. 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.

No PFAS ("forever chemicals") were detected in water systems serving Kosciusko, Mississippi 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 Kosciusko, Mississippi have received 11 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.

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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