Public water system · TX0940020

Active

Green Valley Sud

At a glance

Green Valley Sud (PWSID TX0940020) is an active community water system in Guadalupe County, Texas. It reports serving 52,497 people through 17,529 service connections. Its primary water source is purchased surface water, 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 October 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

52,497

Service connections

17,529

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDTX0940020

System typeCommunity water system

Activity statusActive

Population served52,497

Service connections17,529

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyTX state drinking water program

City served—

StateTexas

ZIP—

CountyGuadalupe County

How does Green Valley Sud compare with other water systems in Guadalupe County?

By EPA's size categories, Green Valley Sud is a large system (10,001 to 100,000 people). Guadalupe County has 15 active public water systems, and Green Valley Sud is the largest of them by population served. Its population served is about 3.8 times the county average of 13,752 people per system, and accounts for 25% of the 206,286 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 Green Valley Sud is about 7.8 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 1,192 Texas systems (17%) list purchased surface water as their primary source.

Who owns and regulates Green Valley Sud?

EPA lists Green Valley Sud 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 15 active systems in Guadalupe County (67%) are also owned by a local government.

Does Green Valley Sud have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025. The violations listed here began between July 2016 and October 2025. By type: 6 monitoring and reporting, 5 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Public Notice (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
2025-10-03	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2024-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2024-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2024-06-25	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2023-07-28	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2020-09-19	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2019-07-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2018-04-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2017-03-13	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2017-01-16	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2016-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2016-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	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.

Green Valley Sud: frequently asked questions

Who runs Green Valley Sud?

Green Valley Sud (PWSID TX0940020) is a community water system owned by a local government. It is regulated by the TX state drinking water program.

How many people does Green Valley Sud serve?

Green Valley Sud reports serving 52,497 people through 17,529 service connections in Guadalupe County, Texas.

Where does Green Valley Sud get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Green Valley Sud 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 October 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 Green Valley Sud'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 October 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 Green Valley Sud's water quality report?

As a community water system, Green Valley Sud 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 Guadalupe County

Water system	County	Population served	Type	Source
City of Schertz	Guadalupe	41,948	Community	Groundwater
Springs Hill Sud	Guadalupe	35,541	Community	Surface water
City of Seguin	Guadalupe	32,736	Community	Surface water
Crystal Clear Sud	Guadalupe	20,766	Community	Purchased surface water
City of Cibolo	Guadalupe	20,331	Community	Purchased surface water
City of Marion	Guadalupe	1,971	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, “Green Valley Sud, PWSID TX0940020, Texas”, https://aquacensus.com/water-systems/texas/green-valley-sud-tx0940020 (data as of October 1, 2026).