Public water system · MO2024504
ActiveThomas Hill Pwsd 1
At a glance
Thomas Hill Pwsd 1 (PWSID MO2024504) is an active community water system in Randolph County, Missouri. It reports serving 11,250 people through 4,500 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
11,250
Service connections
4,500
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Thomas Hill Pwsd 1 compare with other water systems in Randolph County?
By EPA's size categories, Thomas Hill Pwsd 1 is a large system (10,001 to 100,000 people). Randolph County has 6 active public water systems, and Thomas Hill Pwsd 1 is the 2nd-largest of them by population served. Its population served is about 143% above the county average of 4,620 people per system, and accounts for 41% of the 27,721 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active community water system reports serving 6,703 people, so Thomas Hill Pwsd 1 is about 68% above 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. Missouri has 1,612 active community water systems, 55% of the state's 2,943 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 179 Missouri systems (6.1%) list purchased surface water as their primary source.
Who owns and regulates Thomas Hill Pwsd 1?
EPA lists Thomas Hill Pwsd 1 as owned by a local government. The MO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 5 of the 6 active systems in Randolph County (83%) are also owned by a local government.
Does Thomas Hill Pwsd 1 have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between November 1991 and July 2025. By type: 5 monitoring and reporting, 2 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 4 as archived, 3 as resolved and 1 as unaddressed. 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. 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 |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1998-05-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1991-11-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 8 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.
Thomas Hill Pwsd 1: frequently asked questions
Who runs Thomas Hill Pwsd 1?
Thomas Hill Pwsd 1 (PWSID MO2024504) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Thomas Hill Pwsd 1 serve?
Thomas Hill Pwsd 1 reports serving 11,250 people through 4,500 service connections in Randolph County, Missouri.
Where does Thomas Hill Pwsd 1 get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Thomas Hill Pwsd 1 have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in July 2025. 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 Thomas Hill Pwsd 1'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 8 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Thomas Hill Pwsd 1's water quality report?
As a community water system, Thomas Hill Pwsd 1 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 Randolph County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Moberly Pws | Randolph | 13,783 | Community | Surface water |
| Huntsville Pws | Randolph | 1,563 | Community | Purchased surface water |
| Higbee Pws | Randolph | 560 | Community | Purchased surface water |
| Clark Pws | Randolph | 300 | Community | Purchased groundwater |
| Associated Electric Thomas Hill 3 | Randolph | 265 | Non-transient non-community | Surface water |
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, “Thomas Hill Pwsd 1, PWSID MO2024504, Missouri”, https://aquacensus.com/water-systems/missouri/thomas-hill-pwsd-1-mo2024504 (data as of October 1, 2026).