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Webb County, TX Water Quality

Water quality data for 6 public water systems serving Webb County, Texas — based on EPA SDWIS enforcement records, lead testing results, and health-based violation history.

📅 2026 Report 🔄 Data updated 2026 Q2 📍 6 water systems · 35 cities
✅
Generally Safe — Most Systems Performing Well

The majority of water systems have no active violations and lead levels well below the federal action level.

B

Webb County Earns a B

Webb County: 35 communities across 6 water systems. 94.3% have no open violations.

  • Median lead where detected: 1.37 ppb
  • 18 communities with a lead detection, 16 reporting none detected
  • 0 communities with PFAS above the federal limit
  • 2 with significant inspection deficiencies
  • 94.3% of communities have no open violations
1.37 ppb
Median Lead Level
County-wide, 90th percentile
6
Water Systems
Active CWS & NTNCWS
94%
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
  • Botines
    Not reported
    No federal limits exceeded on record
    B
  • Oilton
    Not detected
    1 health-based violation since 2015
    B
  • Laredo Ranchettes West
    1.37 ppb
    8 health-based violations since 2015
    B
  • Laredo
    1.37 ppb
    8 health-based violations since 2015
    B
  • Rio Bravo
    Not detected
    61 health-based violations since 2015
    B
⚠ Needs Attention
  • Mirando City
    Not detected
    1 violation currently open
    D
  • Aguilares
    Not detected
    1 violation currently open
    D
  • Laredo Ranchettes West
    1.37 ppb
    8 health-based violations since 2015
    B
  • Laredo
    1.37 ppb
    8 health-based violations since 2015
    B
  • Rio Bravo
    Not detected
    61 health-based violations since 2015
    B
County Lead Level — Median 1.37 ppb
Based on most recent 90th percentile lead tests across all reporting systems
0 ppb5 ppb10 ppb15 ppb
County median: 1.37 ppb — 9.1% of the federal action level
Systems by Lead Level
Under 5 ppb
18
No Data
17

All Cities in Webb County

Laredo 1.37 ppb B
Rio Bravo Not detected B
El Cenizo Not detected B
Ranchos Penitas West 1.37 ppb B
Pueblo Nuevo 1.37 ppb B
Oilton Not detected B
Bruni Not detected B
La Presa Not detected B
Tanquecitos South Acres 1.37 ppb B
Mirando City Not detected D
San Carlos II 1.37 ppb B
Ranchitos East 1.37 ppb B
San Carlos I 1.37 ppb B
Los Altos 1.37 ppb B
Ranchitos Las Lomas Not detected B
Botines Not reported B
Colorado Acres Not detected B
Los Arcos Not detected B
Los Fresnos Not detected B
Bonanza Hills 1.37 ppb B
Tanquecitos South Acres II 1.37 ppb B
Los Nopalitos Not detected B
Los Centenarios Not detected B
Los Corralitos 1.37 ppb B
Los Minerales 1.37 ppb B
Laredo Ranchettes 1.37 ppb B
Los Veteranos II 1.37 ppb B
Four Points 1.37 ppb B
La Coma 1.37 ppb B
Las Pilas Not detected B
Aguilares Not detected D
Sunset Acres 1.37 ppb B
Hillside Acres Not detected B
Pueblo East Not detected B
Laredo Ranchettes West 1.37 ppb B
Showing 35 cities
No active violations Active violations

About Webb County Drinking Water

Webb County is served by 6 water systems covering 35 communities. 94% have no open violations.

Of the communities reporting lead results, 18 recorded a detection, with a median of 1.37 ppb — 9% 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 significant deficiencies at 2 of them.

Frequently Asked Questions

Is Webb County tap water safe to drink?▼
94% of communities have no open violation. No community has PFAS above the federal limit on record.
What is the lead level in Webb County?▼
Among communities with a detection the median is 1.37 ppb, 9% of the 15 ppb action level. 16 reported none detected and 1 reported no result.
How many water systems serve Webb County?▼
6 community water systems serve 35 communities here.
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