Water Quality in San Antonio, TX (78112)

EPA violation data for public water systems serving ZIP code 78112.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

9,769

Population

8

Water Systems

247

Violations (5yr)

1

Health-Based

Location

Loading map...

Water Systems Serving This Area (8)

San Antonio Water System

Purchased surface water 2,113,151 people served
0 violations
Lead tested: 1.6 ppb (limit: 15 ppb) ✓

Ss Wsc

Groundwater 20,766 people served
0 violations

City Of Elmendorf

All resolved
Groundwater 4,221 people served
4 violations (5yr) · All resolved
Lead tested: 1.4 ppb (limit: 15 ppb) ✓

Best Fuel Stop 4

Groundwater 1,500 people served
0 violations

Mi Reina Restaurant

Groundwater 100 people served
0 violations

Nico Tyme Water Coop

1 health-based
Groundwater 96 people served
243 violations (5yr) · 1 health-based

Climer'S Steakhouse

Groundwater 50 people served
0 violations

House Of David

Groundwater 25 people served
0 violations

Contaminants Found

LEAD AND COPPER RULE REVISIONSHealth-Based
2 violations
Has active
Public NoticeMonitoring
64 violations
Has active
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

56 violations
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

10 violations
Has active
ChlorineMonitoring

Used to disinfect water — generally safe at regulated levels.

5 violations
All resolved
Gross Alpha, Excl. Radon and UMonitoring
5 violations
All resolved
Combined Radium (-226 and -228)Monitoring
5 violations
All resolved
Combined UraniumMonitoring
5 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

4 violations
Has active
cis-1,2-DichloroethyleneMonitoring
3 violations
All resolved
1,2-DichloroethaneMonitoring
3 violations
All resolved
DICHLOROMETHANEMonitoring
3 violations
All resolved
1,1,2-TrichloroethaneMonitoring
3 violations
All resolved
Carbon tetrachlorideMonitoring
3 violations
All resolved
1,1,1-TrichloroethaneMonitoring
3 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
3 violations
All resolved
TolueneMonitoring
3 violations
All resolved
StyreneMonitoring
3 violations
All resolved
p-DichlorobenzeneMonitoring
3 violations
All resolved
TrichloroethyleneMonitoring
3 violations
All resolved
Xylenes, TotalMonitoring
3 violations
All resolved
1,1-DichloroethyleneMonitoring
3 violations
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

3 violations
All resolved
EthylbenzeneMonitoring
3 violations
All resolved
o-DichlorobenzeneMonitoring
3 violations
All resolved
BenzeneMonitoring
3 violations
All resolved
Vinyl chlorideMonitoring
3 violations
All resolved
TetrachloroethyleneMonitoring
3 violations
All resolved
CHLOROBENZENEMonitoring
3 violations
All resolved
1,2-DichloropropaneMonitoring
3 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
3 violations
All resolved
E. COLIMonitoring
1 violation
All resolved
CYANIDEMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1.4 ppb measured Action level: 15 ppb

Sampled: Jan 2023

How Does This Compare?

San Antonio (78112) has more violations than 99% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 247.

Fewer violations 99th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.

Nearby ZIP Codes

Check Another ZIP Code