Public water system · TX0860152
ActiveMendelbaum Cellars
At a glance
Mendelbaum Cellars (PWSID TX0860152) is an active transient non-community water system in Gillespie County, Texas. It reports serving 120 people through 10 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
120
Service connections
10
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Mendelbaum Cellars compare with other water systems in Gillespie County?
By EPA's size categories, Mendelbaum Cellars is a very small system (500 people or fewer). Gillespie County has 71 active public water systems. Its population served is well below the county average of 372 people per system, and accounts for 0.5% of the 26,380 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Mendelbaum Cellars is about 17% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Texas has 1,622 active transient non-community water systems, 23% 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 Mendelbaum Cellars?
EPA lists Mendelbaum Cellars as privately owned. 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. 66 of the 71 active systems in Gillespie County (93%) are also privately owned.
Does Mendelbaum Cellars have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2020. The violations listed here began between February 2018 and July 2020. By type: 1 monitoring and reporting, 1 public notice, recordkeeping or other and 1 monitoring. The contaminants or rules involved are Nitrate, Public Notice and Revised Total Coliform Rule. EPA lists 2 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-03-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2018-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | 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.
Mendelbaum Cellars: frequently asked questions
Who runs Mendelbaum Cellars?
Mendelbaum Cellars (PWSID TX0860152) is a transient non-community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Mendelbaum Cellars serve?
Mendelbaum Cellars reports serving 120 people through 10 service connections in Gillespie County, Texas.
Where does Mendelbaum Cellars 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 Mendelbaum Cellars have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in July 2020. 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 Mendelbaum Cellars' 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 July 2020. For current results, consult EPA ECHO, or the TX state drinking water program.
Where can I find Mendelbaum Cellars' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Mendelbaum Cellars is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Gillespie County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Fredericksburg | Gillespie | 11,257 | Community | Groundwater |
| Tpwd Lyndon B Johnson Shp | Gillespie | 750 | Transient non-community | Groundwater |
| Arch Ray Condos | Gillespie | 735 | Transient non-community | Groundwater |
| Stonewall Wcid | Gillespie | 726 | Community | Groundwater |
| Swallows Eve | Gillespie | 700 | Transient non-community | Groundwater |
| Grape Creek Vineyards | Gillespie | 650 | 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, “Mendelbaum Cellars, PWSID TX0860152, Texas”, https://aquacensus.com/water-systems/texas/mendelbaum-cellars-tx0860152 (data as of October 1, 2026).