Public water system · TX2370166
ActiveRoyal Isd
At a glance
Royal Isd (PWSID TX2370166) is an active non-transient non-community water system in Waller County, Texas. It reports serving 3,000 people through 10 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,000
Service connections
10
Primary source
GWP
Purchased groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Royal Isd compare with other water systems in Waller County?
By EPA's size categories, Royal Isd is a small system (501 to 3,300 people). Waller County has 67 active public water systems. Its population served is about 3.3 times the county average of 920 people per system, and accounts for 4.9% of the 61,644 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 Royal Isd is about 7 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 302 Texas systems (4.3%) list purchased groundwater as their primary source.
Who owns and regulates Royal Isd?
EPA lists Royal Isd 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. 26 of the 67 active systems in Waller County (39%) are also owned by a local government.
Does Royal Isd have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in February 2026. By type: 1 monitoring. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2026-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The one violation in EPA's records.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.
Royal Isd: frequently asked questions
Who runs Royal Isd?
Royal Isd (PWSID TX2370166) 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 Royal Isd serve?
Royal Isd reports serving 3,000 people through 10 service connections in Waller County, Texas.
Where does Royal Isd get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Royal Isd have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in February 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 Royal Isd'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 one violation for this system; it is not health-based, and the most recent began in February 2026. For current results, consult EPA ECHO, or the TX state drinking water program.
Where can I find Royal Isd's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Royal Isd 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 Waller County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Prairie View A&M University | Waller | 9,550 | Community | Groundwater |
| City of Hempstead | Waller | 7,158 | Community | Groundwater |
| City of Waller | Waller | 5,448 | Community | Groundwater |
| Brookshire Mwd | Waller | 5,364 | Community | Groundwater |
| Harris-Waller Counties MUD 5 | Waller | 4,098 | Community | Purchased groundwater |
| Willow Creek Farms MUD | Waller | 3,453 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Royal Isd, PWSID TX2370166, Texas”, https://aquacensus.com/water-systems/texas/royal-isd-tx2370166 (data as of October 1, 2026).