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Mansfield, LA Tap Water Quality 2026

Water quality report for Mansfield, LA — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Mansfield's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: City Of Mansfield Water System PWSID: LA1031009 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.00 ppb, 7% of the action level and no violations are open. No PFAS was detected.

C

Mansfield earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.00 ppb — 7% of the federal action level
PFAS tested, none detected
23 violations since 2015, 23 health-based
No violations currently open
Mansfield's lead level vs. all Louisiana community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.00 ppb — 7% of the federal action level
✓ Lower lead than 88% of Louisiana utilities
Population Served
4584
~2504 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
23 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
7% of EPA action level
1.00 ppb
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
123.1% of EPA action level
1,600 ppb
Action level: 1,300 ppb
The 90th-percentile lead result is 1.00 ppb, 7% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2026 Archived
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
TTHM MCL EXCEEDANCE 0.112 MG/L 0.080 mg/L 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
TTHM MCL EXCEEDANCE 0.113 MG/L 0.080 mg/L 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2024 Resolved
TTHM MCL EXCEEDANCE 0.102 MG/L 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 0.097 MG/L 0.080 mg/L 2023 Resolved
TTHM MCL EXCEEDANCE 84 UG/L 0.080 mg/L 2018 Resolved
TTHM MCL EXCEEDANCE 96 UG/L 0.080 mg/L 2017 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2017 Archived
CARBON, TOTAL TREATMENT TECHNIQUE — TT 2017 Resolved
TTHM MCL EXCEEDANCE 91 UG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 85 UG/L 0.080 mg/L 2017 Resolved
TTHM MCL EXCEEDANCE 86 UG/L 0.080 mg/L 2017 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

23 violations are on record since 2015, of which 23 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility City Of Mansfield Water System
PWSID LA1031009
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 4,584
Service connections 2,504
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Mansfield tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.00 ppb, 7% of the action level.
Does Mansfield water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Mansfield? ▼
City Of Mansfield Water System (PWSID LA1031009), one of 3 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2026-03-17. Inspectors recorded 2 significant deficiencies.

What Should Mansfield Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in Louisiana

Stonewall, La Tap Water Quality 2026 De Soto Parish Logansport, La Tap Water Quality 2026 De Soto Parish South Mansfield, La Tap Water Quality 2026 De Soto Parish Keachi, La Tap Water Quality 2026 De Soto Parish