D
50

Poor Water Quality

Elmendorf, TX 78112

Bexar County · Population served: 2,117,468 · Data updated March 2026

Water Systems Serving This Area

🏔
SAN ANTONIO WATER SYSTEM
Surface water · Pop. 2,113,151
PWSID: TX0150018
🌊
CITY OF ELMENDORF
Groundwater · Pop. 4,221
PWSID: TX0150048
🌊
NICO TYME WATER COOP
Groundwater · Pop. 96
PWSID: TX0150486

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
6.1
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

3 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA9.2 pptNo standard500 pptUnregulated
PFBS3.8 ppt2000 ppt100 pptBelow limit
PFPeA3.2 pptNo standardUnregulated

Violation History (Last 5 Years)

550Total (5yr)
1Health-Based
401Major

Water Quality Summary

Understanding Your Water in Elmendorf

Tap water quality in Elmendorf, Texas (78112) receives an overall grade of D (Poor) with a score of 50 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 18 points below the Texas state average of 68. Compared to the national average (75), this area scores significantly lower. The area is served by 3 water systems providing water to approximately 2,117,468 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 3 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 550 violations, including 1 health-based violations.

Your Score 50/100 D
vs State 18 pts below Texas avg (68)
vs National 25 pts below national avg (75)

What a Grade D Means

A score of 50/100 signals poor water quality in Elmendorf, TX. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

⚠️

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

Tap water in Elmendorf, Texas receives a grade of D (Poor) with a score of 50/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 78112 is served by 3 water systems using surface water, groundwater sources, providing water to approximately 2,117,468 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 6.1 ppb in Elmendorf, Texas. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

3 PFAS compounds were detected in water serving Elmendorf, Texas, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving Elmendorf, Texas have received 550 violations in the last 5 years, including 1 health-based violation. 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.

Based on detected contaminants (lead, PFAS), residents in Elmendorf, Texas should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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