Public water system · TX1013679
ActiveTomball Isd Cypress Rosehill Plant
At a glance
Tomball Isd Cypress Rosehill Plant (PWSID TX1013679) is an active non-transient non-community water system in Harris County, Texas. It reports serving 12,600 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
12,600
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Tomball Isd Cypress Rosehill Plant compare with other water systems in Harris County?
By EPA's size categories, Tomball Isd Cypress Rosehill Plant is a large system (10,001 to 100,000 people). Harris County has 1,246 active public water systems. Its population served is about 160% above the county average of 4,849 people per system, and accounts for 0.2% of the 6,041,784 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Tomball Isd Cypress Rosehill Plant is about 29 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Texas has 862 active non-transient non-community water systems, 12% 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 Tomball Isd Cypress Rosehill Plant?
EPA lists Tomball Isd Cypress Rosehill Plant 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. 508 of the 1,246 active systems in Harris County (41%) are also owned by a local government.
Does Tomball Isd Cypress Rosehill Plant have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between October 2024 and January 2026. By type: 2 public notice, recordkeeping or other, 2 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Public Notice (2 of them). EPA lists 5 as resolved and 1 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-12-31 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2025-12-06 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
| 2024-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
All 6 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.
Tomball Isd Cypress Rosehill Plant: frequently asked questions
Who runs Tomball Isd Cypress Rosehill Plant?
Tomball Isd Cypress Rosehill Plant (PWSID TX1013679) is a non-transient non-community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Tomball Isd Cypress Rosehill Plant serve?
Tomball Isd Cypress Rosehill Plant reports serving 12,600 people through 1 service connection in Harris County, Texas.
Where does Tomball Isd Cypress Rosehill Plant 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 Tomball Isd Cypress Rosehill Plant have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in January 2026. 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 Tomball Isd Cypress Rosehill Plant'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 6 violations for this system; none is health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the TX state drinking water program.
Where can I find Tomball Isd Cypress Rosehill Plant's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Tomball Isd Cypress Rosehill Plant is a non-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 Harris County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Houston | Harris | 2,970,543 | Community | Surface water |
| City of Pasadena | Harris | 152,000 | Community | Purchased surface water |
| Clear Lake City Water Authority | Harris | 89,702 | Community | Purchased surface water |
| City of Baytown | Harris | 86,004 | Community | Purchased surface water |
| City of Houston Ud 5 - Kingwood | Harris | 80,073 | Community | Groundwater |
| Harris County MUD 165 | Harris | 40,503 | 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, “Tomball Isd Cypress Rosehill Plant, PWSID TX1013679, Texas”, https://aquacensus.com/water-systems/texas/tomball-isd-cypress-rosehill-plant-tx1013679 (data as of October 1, 2026).