C58/100
Corpus Christi Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 325,435 residents · Texas
What's In Corpus Christi's Tap Water?
76
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2021.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
CITY OF CORPUS CHRISTI
Population Served
318,387
Water Source
Surface Water
System ID
TX1780003
CORPUS CHRISTI NAVAL AIR STATION
Population Served
7,048
Water Source
Purchased Surface Water
System ID
TX1780017
Frequently Asked Questions About Corpus Christi Water
Is Corpus Christi tap water safe to drink?
Corpus Christi, Texas tap water receives a grade of C (58/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 25 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Corpus Christi's water?
Of the 76 contaminants tested in Corpus Christi's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Corpus Christi have any water quality violations?
Yes, Corpus Christi has 25 EPA violation(s) on record, with the most recent in 2021. Violation types include TT, MR, MCL. 13 of these are health-based violations, which are the most serious category.
Do I need a water filter in Corpus Christi?
Corpus Christi water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Corpus Christi's tap water come from?
Corpus Christi's drinking water is sourced from surface water and supplied by CITY OF CORPUS CHRISTI and 1 other water system(s). The system serves approximately 325,435 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Corpus Christi's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Corpus Christi's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Corpus Christi's water compare to other cities in Texas?
Corpus Christi's water quality score of 58/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Texas state page to see how all cities in the state compare.
What should I do if I'm concerned about Corpus Christi's water quality?
If you have concerns about Corpus Christi's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (CITY OF CORPUS CHRISTI) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.