Public water system · TX1780003
ActiveCity of Corpus Christi
At a glance
City of Corpus Christi (PWSID TX1780003) is an active community water system in Nueces County, Texas. It reports serving 318,387 people through 105,431 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in February 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
318,387
Service connections
105,431
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does City of Corpus Christi compare with other water systems in Nueces County?
By EPA's size categories, City of Corpus Christi is a very large system (more than 100,000 people). Nueces County has 20 active public water systems, and City of Corpus Christi is the largest of them by population served. Its population served is about 17 times the county average of 18,565 people per system, and accounts for 86% of the 371,295 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Corpus Christi is about 48 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 328 Texas systems (4.6%) list surface water as their primary source.
Who owns and regulates City of Corpus Christi?
EPA lists City of Corpus Christi as owned by a local government. The TX state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 10 of the 20 active systems in Nueces County (50%) are also owned by a local government.
Does City of Corpus Christi have drinking water violations?
Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in February 2021. The violations listed here began between August 2007 and February 2021. By type: 4 required treatment not met, 4 contaminant level above the legal limit, 2 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (4 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-02-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2021-02-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2017-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2015-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-08-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-09-24 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2013-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2013-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2009-11-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2009-11-01 | Required treatment not metMonthly Turbidity Exceed (Enhanced SWTR) · code 44 | Interim Enhanced Surface Water Treatment Rulecode 0300 | Yes | Resolved |
| 2007-08-12 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
The 12 most recent violations in EPA's records, newest first. Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
City of Corpus Christi: frequently asked questions
Who runs City of Corpus Christi?
City of Corpus Christi (PWSID TX1780003) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does City of Corpus Christi serve?
City of Corpus Christi reports serving 318,387 people through 105,431 service connections in Nueces County, Texas.
Where does City of Corpus Christi get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does City of Corpus Christi have any drinking water violations?
Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in February 2021. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is City of Corpus Christi's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 8 are health-based, and the most recent began in February 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find City of Corpus Christi's water quality report?
As a community water system, City of Corpus Christi must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Nueces County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Nueces County Wcid 4 | Nueces | 14,880 | Community | Purchased surface water |
| Nueces County Wcid 3 | Nueces | 14,000 | Community | Surface water |
| Corpus Christi Naval Air Station | Nueces | 7,048 | Community | Purchased surface water |
| City of Bishop | Nueces | 3,186 | Community | Purchased surface water |
| Nueces WSC | Nueces | 3,165 | Community | Purchased surface water |
| River Acres WSC | Nueces | 2,700 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “City of Corpus Christi, PWSID TX1780003, Texas”, https://aquacensus.com/water-systems/texas/city-of-corpus-christi-tx1780003 (data as of October 1, 2026).