Public water system · TX0640022
ActiveCarrizo Hill WSC
At a glance
Carrizo Hill WSC (PWSID TX0640022) is an active community water system in Dimmit County, Texas. It reports serving 1,050 people through 574 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,050
Service connections
574
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Carrizo Hill WSC compare with other water systems in Dimmit County?
By EPA's size categories, Carrizo Hill WSC is a small system (501 to 3,300 people). Dimmit County has 13 active public water systems, and Carrizo Hill WSC is the 4th-largest of them by population served. Its population served is about 12% above the county average of 938 people per system, and accounts for 8.6% of the 12,195 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 Carrizo Hill WSC 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 Carrizo Hill WSC?
EPA lists Carrizo Hill WSC 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 13 active systems in Dimmit County (54%) are also owned by a local government.
Does Carrizo Hill WSC have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 2025. The violations listed here began between December 2019 and August 2025. By type: 7 monitoring and reporting and 5 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (7 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 |
|---|---|---|---|---|
| 2025-08-08 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-04-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2025-03-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-02-22 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2024-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-09-29 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-03-15 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | 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.
Carrizo Hill WSC: frequently asked questions
Who runs Carrizo Hill WSC?
Carrizo Hill WSC (PWSID TX0640022) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Carrizo Hill WSC serve?
Carrizo Hill WSC reports serving 1,050 people through 574 service connections in Dimmit County, Texas.
Where does Carrizo Hill WSC 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 Carrizo Hill WSC have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in August 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 Carrizo Hill WSC'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, none is health-based, and the most recent began in August 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 Carrizo Hill WSC's water quality report?
As a community water system, Carrizo Hill WSC 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 Dimmit County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Carrizo Springs | Dimmit | 5,830 | Community | Groundwater |
| Target Lodge Carrizo Springs | Dimmit | 2,052 | Transient non-community | Groundwater |
| City of Asherton | Dimmit | 1,225 | Community | Groundwater |
| City of Big Wells | Dimmit | 870 | Community | Groundwater |
| Alamo Lumber Hwy 277 Store | Dimmit | 260 | Transient non-community | Groundwater |
| Anadarko Carrizo Springs Facility | Dimmit | 238 | Non-transient non-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, “Carrizo Hill WSC, PWSID TX0640022, Texas”, https://aquacensus.com/water-systems/texas/carrizo-hill-wsc-tx0640022 (data as of October 1, 2026).