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Lafourche Parish, LA Water Quality

Water quality data for 4 public water systems serving Lafourche Parish, Louisiana — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 4 water systems · 11 cities
✅
Excellent — All Systems Performing Well

Water quality across the county is outstanding with minimal violations and very low lead levels.

A

Lafourche Parish Earns a A

Lafourche Parish: 11 communities across 4 water systems. 100.0% have no open violations.

  • Median lead where detected: 1.00 ppb
  • 1 communities with a lead detection, 10 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 4 with significant inspection deficiencies
  • 100.0% of communities have no open violations
1 ppb
Median Lead Level
County-wide, 90th percentile
4
Water Systems
Active CWS & NTNCWS
100%
Violation-Free
No active violations on record
How we grade counties: MyWaterIQ uses EPA SDWIS enforcement data — actual MCL violations and lead test results — not the aspirational MCLG targets used by some sites. A grade reflects real compliance history, not theoretical risk. Learn more →

Cities by Water Quality

⭐ Best Performing
  • Raceland
    Not detected
    No federal limits exceeded on record
    A
  • Lockport
    Not detected
    No federal limits exceeded on record
    A
  • Mathews
    Not detected
    No federal limits exceeded on record
    A
  • Lafourche Crossing
    Not detected
    No federal limits exceeded on record
    A
  • Lockport Heights
    Not detected
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Kraemer
    Not detected
    19 health-based violations since 2015
    B
  • Thibodaux
    Not detected
    2 significant inspection deficiencies
    A
  • Bayou Blue
    1.00 ppb
    1 significant inspection deficiency
    A
  • Chackbay
    Not detected
    2 significant inspection deficiencies
    A
  • Bayou Country Club
    Not detected
    2 significant inspection deficiencies
    A
County Lead Level — Median 1 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1 ppb — 6.7% of the federal action level
Systems by Lead Level
Under 5 ppb
1
No Data
10

All Cities in Lafourche Parish

Thibodaux Not detected A
Raceland Not detected A
Bayou Blue 1.00 ppb A
Chackbay Not detected A
Lockport Not detected A
Mathews Not detected A
Lafourche Crossing Not detected A
Lockport Heights Not detected A
Bayou Country Club Not detected A
Kraemer Not detected B
Choctaw Not detected A
Showing 11 cities
No active violations Active violations

About Lafourche Parish Drinking Water

Lafourche Parish is served by 4 water systems covering 11 communities. No community here has an open violation on record.

Of the communities reporting lead results, 1 recorded a detection, with a median of 1.00 ppb — 7% of the federal action level. 10 reported none detected, which means below the laboratory limit rather than an absence of lead.

No community here has PFAS above the federal limit on record. State inspectors recorded significant deficiencies at 4 of them.

Frequently Asked Questions

Is Lafourche Parish tap water safe to drink?▼
No community in Lafourche Parish has an open violation on record. No community has PFAS above the federal limit on record.
What is the lead level in Lafourche Parish?▼
Among communities with a detection the median is 1.00 ppb, 7% of the 15 ppb action level. 10 reported none detected and 0 reported no result.
How many water systems serve Lafourche Parish?▼
4 community water systems serve 11 communities here.
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