Water Quality in San Antonio, TX (77982)

EPA violation data for public water systems serving ZIP code 77982.

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

620

Population

13

Water Systems

236

Violations (5yr)

28

Health-Based

Location

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Water Systems Serving This Area (13)

Valley-Hi

Groundwater 26,839 people served
0 violations

Great Northwest Utility Co

Purchased groundwater 17,877 people served
0 violations

City Of Port Lavaca

13 health-based
Purchased surface water 11,545 people served
15 violations (5yr) · 13 health-based · All resolved
Lead tested: 2.31 ppb (limit: 15 ppb) ✓

Southwest Utiltiy Co-Westwood

Groundwater 7,000 people served
0 violations

Valencia Water Company

Groundwater 6,638 people served
0 violations

Port Oconnor Improvement District

2 health-based
Groundwater 1,568 people served
3 violations (5yr) · 2 health-based · All resolved
Lead tested: 2.97 ppb (limit: 15 ppb) ✓

L & L Oil Company

Groundwater 50 people served
0 violations

Milchem Incorporated

Groundwater 50 people served
0 violations

Seaport Lakes Subdivision

13 health-based
Groundwater 42 people served
218 violations (5yr) · 13 health-based

Baroid Corp

Groundwater 30 people served
0 violations

Tarpon Motel

Groundwater 30 people served
0 violations

Dresser-Magcobar

Purchased surface water 25 people served
0 violations

Brown & Root - Braun - Docks

Groundwater 10 people served
0 violations

Contaminants Found

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

Missed testing deadlines — not a detection of bacteria.

45 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
Total Haloacetic Acids (HAA5)Monitoring
5 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

3 violations
Has active
Xylenes, TotalMonitoring
3 violations
All resolved
NitrateMonitoring

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

3 violations
All resolved
TrichloroethyleneMonitoring
3 violations
All resolved
cis-1,2-DichloroethyleneMonitoring
3 violations
All resolved
StyreneMonitoring
3 violations
All resolved
Carbon tetrachlorideMonitoring
3 violations
All resolved
p-DichlorobenzeneMonitoring
3 violations
All resolved
1,1-DichloroethyleneMonitoring
3 violations
All resolved
DICHLOROMETHANEMonitoring
3 violations
All resolved
EthylbenzeneMonitoring
3 violations
All resolved
BenzeneMonitoring
3 violations
All resolved
1,2-DichloropropaneMonitoring
3 violations
All resolved
1,1,1-TrichloroethaneMonitoring
3 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
3 violations
All resolved
Vinyl chlorideMonitoring
3 violations
All resolved
TetrachloroethyleneMonitoring
3 violations
All resolved
o-DichlorobenzeneMonitoring
3 violations
All resolved
1,2-DichloroethaneMonitoring
3 violations
All resolved
CHLOROBENZENEMonitoring
3 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
3 violations
All resolved
1,1,2-TrichloroethaneMonitoring
3 violations
All resolved
TolueneMonitoring
3 violations
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.31 ppb measured Action level: 15 ppb

Sampled: Jan 2024

How Does This Compare?

San Antonio (77982) has more violations than 99% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 236.

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 →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 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.

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