Drinking water quality · 2024
What's in Corpus Christi, TX tap water
25 contaminants were measured in the Corpus Christi, TX water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 25
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- TX
PFAS — EPA UCMR5 (2023–2025)
3 PFAS compounds detected in Corpus Christi, TX
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFBA
● Detected (no federal limit)PFHxA
● Detected (no federal limit)PFPeA
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Corpus Christi, TX's drinking water comes from surface water, drawn from 5 sources.
Source
- INTAKE 2 - SOUTH NUECES
- INTAKE 1 - NORTH NUECES
- PRE-SEDIMENTATION BASIN
- INTAKE 3 - LAKE TEXANA
- + 1 more
Treatment
- SWTP - STEVENS 1
- SWTP - STEVENS 2
- BOOSTER PLANT - SAND DOLLAR AVE
- + 1 more
Distribution
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based5 violations on record · most recent Aug 2015resolved
- Treatment technique violationHealth-based2 violations on record · most recent Feb 2021resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChloramineA longer-lasting disinfectant made by combining chlorine with ammonia. | 3.41 mg/LAverageSystem-wide | 4 mg/LMCL | Approaching the limit |
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 40 ug/LAverageSystem-wide | 4000 ug/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorite | 0.59 mg/LAverageSystem-wide | 1 mg/LMCL | Within the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 40 ug/LAverageYearly Average | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 21 ug/LAverageYearly Average | None set | Within the limit |
| BromodichloromethaneA trihalomethane disinfection byproduct. | 9.1 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| BromoformA trihalomethane disinfection byproduct. | 13.2 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| ChloroformA trihalomethane formed when chlorine reacts with organic matter in water. | 3.1 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| DibromochloromethaneA trihalomethane disinfection byproduct. | 14.4 ug/LAverageSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cyanide | 79 ug/LAverageSystem-wide | None set | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.35 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.15 mg/LAverageSystem-wide | 10 mg/LMCL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2.7 ug/LAverageSystem-wide | None set | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 1.7 ug/L90th percentileAt the tap | None set | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 4.5 ug/LAverageSystem-wide | None set | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.133 mg/LAverageSystem-wide | 2 mg/LMCL | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.033 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| LithiumA naturally occurring element found in some groundwater. | 21.7 ug/LAverageSystem-wide | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 1 ug/LHighest single sampleSystem-wide | 30 ug/LMCL | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 11 pCi/LHighest single sampleSystem-wide | None set | Detected — no federal limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0Reported levelTotal Number of Positive Samples | None set | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0.92 %MaximumSystem-wide | None set | Detected — no federal limit |
People also ask about Corpus Christi, TX's water
+Is Corpus Christi, TX tap water safe to drink in 2024?
Every one of the 25 contaminants measured in Corpus Christi, TX's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Corpus Christi, TX tap water?
25 contaminants were measured in Corpus Christi, TX's 2024 Consumer Confidence Report, spanning disinfection byproducts, metals, and inorganic chemicals. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in Corpus Christi, TX tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Chloramine. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Corpus Christi, TX's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Corpus Christi, TX's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.