Public water system · TX0930036
ActiveHighway 90 Estates
At a glance
Highway 90 Estates (PWSID TX0930036) is an active community water system in Grimes County, Texas. It reports serving 39 people through 13 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
39
Service connections
13
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Highway 90 Estates compare with other water systems in Grimes County?
By EPA's size categories, Highway 90 Estates is a very small system (500 people or fewer). Grimes County has 28 active public water systems. Its population served is well below the county average of 941 people per system, and accounts for 0.1% of the 26,336 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 Highway 90 Estates 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 Highway 90 Estates?
EPA lists Highway 90 Estates 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. 20 of the 28 active systems in Grimes County (71%) are also privately owned.
Does Highway 90 Estates have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 2020. The violations listed here began between August 2006 and January 2020. By type: 3 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminants or rules involved are Public Notice, Lead and Copper Rule, Chlorine and Total coliform bacteria (TCR). EPA lists 4 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 |
|---|---|---|---|---|
| 2020-01-09 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2010-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 4 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.
Highway 90 Estates: frequently asked questions
Who runs Highway 90 Estates?
Highway 90 Estates (PWSID TX0930036) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Highway 90 Estates serve?
Highway 90 Estates reports serving 39 people through 13 service connections in Grimes County, Texas.
Where does Highway 90 Estates 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 Highway 90 Estates have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in January 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 Highway 90 Estates' 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 4 violations for this system; none is health-based, and the most recent began in January 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Highway 90 Estates' water quality report?
As a community water system, Highway 90 Estates 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 Grimes County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Navasota | Grimes | 8,068 | Community | Groundwater |
| Wickson Creek Sud Grimes County | Grimes | 4,843 | Community | Groundwater |
| Dobbin Plantersville WSC 2 | Grimes | 2,766 | Community | Groundwater |
| G & W WSC | Grimes | 1,650 | Community | Groundwater |
| Tdcj Pack Unit | Grimes | 1,597 | Community | Groundwater |
| Tdcj Luther Units | Grimes | 1,431 | 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, “Highway 90 Estates, PWSID TX0930036, Texas”, https://aquacensus.com/water-systems/texas/highway-90-estates-tx0930036 (data as of October 1, 2026).