Public water system · TX1020019
ActiveCaddo Lake WSC
At a glance
Caddo Lake WSC (PWSID TX1020019) is an active community water system in Harrison County, Texas. It reports serving 1,230 people through 410 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; none is health-based, and the most recent began in December 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,230
Service connections
410
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Caddo Lake WSC compare with other water systems in Harrison County?
By EPA's size categories, Caddo Lake WSC is a small system (501 to 3,300 people). Harrison County has 32 active public water systems. Its population served is about half of the county average of 2,258 people per system, and accounts for 1.7% of the 72,245 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 Caddo Lake 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 Caddo Lake WSC?
EPA lists Caddo Lake 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. 18 of the 32 active systems in Harrison County (56%) are also owned by a local government.
Does Caddo Lake WSC have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in December 2024. The violations listed here began between January 2008 and December 2024. By type: 3 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, E. coli and Nitrate. EPA lists 3 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 |
|---|---|---|---|---|
| 2024-12-30 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2016-04-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 3 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.
Caddo Lake WSC: frequently asked questions
Who runs Caddo Lake WSC?
Caddo Lake WSC (PWSID TX1020019) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Caddo Lake WSC serve?
Caddo Lake WSC reports serving 1,230 people through 410 service connections in Harrison County, Texas.
Where does Caddo Lake 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 Caddo Lake WSC have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in December 2024. 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 Caddo Lake 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. EPA's records list 3 violations for this system; none is health-based, and the most recent began in December 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Caddo Lake WSC's water quality report?
As a community water system, Caddo Lake 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 Harrison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Marshall | Harrison | 23,091 | Community | Surface water |
| Gum Springs WSC 2 | Harrison | 7,815 | Community | Purchased surface water |
| Leigh WSC-Rural | Harrison | 6,164 | Community | Groundwater |
| City of Hallsville | Harrison | 5,580 | Community | Purchased surface water |
| Harleton WSC | Harrison | 4,107 | Community | Purchased surface water |
| Gum Springs WSC 1 | Harrison | 3,564 | 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, “Caddo Lake WSC, PWSID TX1020019, Texas”, https://aquacensus.com/water-systems/texas/caddo-lake-wsc-tx1020019 (data as of October 1, 2026).