States › Texas › McLennan County

McLennan County, TX Water Quality

Water quality data for 20 public water systems serving McLennan County, Texas — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 20 water systems · 21 cities
✅
Excellent — All Systems Performing Well

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

A

McLennan County Earns a A

McLennan County: 21 communities across 20 water systems. 90.5% have no open violations.

  • Median lead where detected: 2.34 ppb
  • 5 communities with a lead detection, 16 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 0 with significant inspection deficiencies
  • 90.5% of communities have no open violations
2.34 ppb
Median Lead Level
County-wide, 90th percentile
20
Water Systems
Active CWS & NTNCWS
90%
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
  • Waco
    1.89 ppb
    No federal limits exceeded on record
    A
  • Hewitt
    Not detected
    No federal limits exceeded on record
    A
  • Lacy-Lakeview
    Not detected
    No federal limits exceeded on record
    A
  • Willow Grove
    Not detected
    No federal limits exceeded on record
    B
  • Beverly Hills
    1.89 ppb
    No federal limits exceeded on record
    A
⚠ Needs Attention
  • Riesel
    Not detected
    2 violations currently open
    D
  • Leroy
    Not detected
    1 violation currently open
    D
  • Lorena
    2.47 ppb
    9 health-based violations since 2015
    B
  • Mart
    Not detected
    4 health-based violations since 2015
    B
  • Crawford
    Not detected
    3 health-based violations since 2015
    B
County Lead Level — Median 2.34 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 2.34 ppb — 15.6% of the federal action level
Systems by Lead Level
Under 5 ppb
5
No Data
16

All Cities in McLennan County

Waco 1.89 ppb A
Hewitt Not detected A
Robinson Not detected A
Bellmead Not detected A
Woodway Not detected A
Lacy-Lakeview Not detected A
McGregor 2.34 ppb A
West Not detected B
Willow Grove Not detected B
Beverly Hills 1.89 ppb A
Lorena 2.47 ppb B
Mart Not detected B
Bruceville-Eddy 2.65 ppb A
Moody Not detected B
Gholson Not detected B
Riesel Not detected D
China Spring Not detected B
Crawford Not detected B
Leroy Not detected D
Ross Not detected B
Hallsburg Not detected B
Showing 21 cities
No active violations Active violations

About McLennan County Drinking Water

McLennan County is served by 20 water systems covering 21 communities. 91% have no open violations.

Of the communities reporting lead results, 5 recorded a detection, with a median of 2.34 ppb — 16% of the federal action level. 16 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 no significant deficiencies.

Frequently Asked Questions

Is McLennan County tap water safe to drink?▼
91% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in McLennan County?▼
Among communities with a detection the median is 2.34 ppb, 16% of the 15 ppb action level. 16 reported none detected and 0 reported no result.
How many water systems serve McLennan County?▼
20 community water systems serve 21 communities here.
← Back to Texas water quality overview