Public water system · TX1100003
ActiveCity of Sundown
At a glance
City of Sundown (PWSID TX1100003) is an active community water system in Hockley County, Texas. It reports serving 1,300 people through 678 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,300
Service connections
678
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Sundown compare with other water systems in Hockley County?
By EPA's size categories, City of Sundown is a small system (501 to 3,300 people). Hockley County has 9 active public water systems, and City of Sundown is the 2nd-largest of them by population served. Its population served is about 28% below the county average of 1,812 people per system, and accounts for 8% of the 16,308 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 Sundown is well below 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 5,215 Texas systems (74%) list groundwater as their primary source.
Who owns and regulates City of Sundown?
EPA lists City of Sundown 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. 7 of the 9 active systems in Hockley County (78%) are also owned by a local government.
Does City of Sundown have drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in July 2025. The violations listed here began between October 1978 and July 2025. By type: 4 monitoring and reporting, 3 contaminant level above the legal limit, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Fluoride (3 of them). EPA lists 5 as archived and 4 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2023-10-20 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2023-09-21 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2017-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-05-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1983-10-11 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 1978-10-31 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 1978-10-31 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
All 9 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 Sundown: frequently asked questions
Who runs City of Sundown?
City of Sundown (PWSID TX1100003) 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 Sundown serve?
City of Sundown reports serving 1,300 people through 678 service connections in Hockley County, Texas.
Where does City of Sundown get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does City of Sundown have any drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in July 2025. 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 Sundown'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. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in July 2025. 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 Sundown's water quality report?
As a community water system, City of Sundown 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 Hockley County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Levelland | Hockley | 12,652 | Community | Purchased surface water |
| City of Anton | Hockley | 907 | Community | Groundwater |
| City of Smyer | Hockley | 474 | Community | Groundwater |
| City of Ropesville | Hockley | 430 | Community | Groundwater |
| City of Opdyke West | Hockley | 220 | Community | Groundwater |
| Whitharral WSC | Hockley | 200 | Community | Groundwater |
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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 Sundown, PWSID TX1100003, Texas”, https://aquacensus.com/water-systems/texas/city-of-sundown-tx1100003 (data as of October 1, 2026).