Public water system · TX0930014
ActiveShiro Water System
At a glance
Shiro Water System (PWSID TX0930014) is an active community water system in Grimes County, Texas. It reports serving 103 people through 118 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
103
Service connections
118
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Shiro Water System compare with other water systems in Grimes County?
By EPA's size categories, Shiro Water System 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 0.4% 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 Shiro Water System 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 Shiro Water System?
EPA lists Shiro Water System 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 Shiro Water System have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2026. The violations listed here began between January 2024 and April 2026. By type: 6 public notice, recordkeeping or other, 4 monitoring and reporting, 1 reporting and 1 required treatment not met. The contaminant or rule involved most often is Public Notice (4 of them). EPA lists 7 as unaddressed, 4 as resolved and 1 as archived. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2026-04-25 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-04-25 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-04-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Unaddressed |
| 2024-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | 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.
Shiro Water System: frequently asked questions
Who runs Shiro Water System?
Shiro Water System (PWSID TX0930014) is a community water system privately owned. It is regulated by the TX state drinking water program.
How many people does Shiro Water System serve?
Shiro Water System reports serving 103 people through 118 service connections in Grimes County, Texas.
Where does Shiro Water System 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 Shiro Water System have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 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 Shiro Water System'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, one is health-based, and the most recent began in April 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Shiro Water System's water quality report?
As a community water system, Shiro Water System 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, “Shiro Water System, PWSID TX0930014, Texas”, https://aquacensus.com/water-systems/texas/shiro-water-system-tx0930014 (data as of October 1, 2026).