Public water system · MO4021451
ActivePilot Knob Rural Wd 1 Doe Run Area
At a glance
Pilot Knob Rural Wd 1 Doe Run Area (PWSID MO4021451) is an active community water system in St. Francois County, Missouri. It reports serving 507 people through 203 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
507
Service connections
203
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Pilot Knob Rural Wd 1 Doe Run Area compare with other water systems in St. Francois County?
By EPA's size categories, Pilot Knob Rural Wd 1 Doe Run Area is a small system (501 to 3,300 people). St. Francois County has 39 active public water systems. Its population served is about 64% below the county average of 1,411 people per system, and accounts for 0.9% of the 55,041 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 Pilot Knob Rural Wd 1 Doe Run Area 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. Missouri has 1,612 active community water systems, 55% of the state's 2,943 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,521 Missouri systems (86%) list groundwater as their primary source.
Who owns and regulates Pilot Knob Rural Wd 1 Doe Run Area?
EPA lists Pilot Knob Rural Wd 1 Doe Run Area 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. 9 of the 39 active systems in St. Francois County (23%) are also owned by a local government.
Does Pilot Knob Rural Wd 1 Doe Run Area have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in July 2025. The violations listed here began between February 2014 and July 2025. By type: 7 monitoring and reporting, 2 public notice, recordkeeping or other, 2 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Groundwater Rule (3 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. 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. 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 |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2024-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2022-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2019-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2016-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2016-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2014-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Pilot Knob Rural Wd 1 Doe Run Area: frequently asked questions
Who runs Pilot Knob Rural Wd 1 Doe Run Area?
Pilot Knob Rural Wd 1 Doe Run Area (PWSID MO4021451) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Pilot Knob Rural Wd 1 Doe Run Area serve?
Pilot Knob Rural Wd 1 Doe Run Area reports serving 507 people through 203 service connections in St. Francois County, Missouri.
Where does Pilot Knob Rural Wd 1 Doe Run Area 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 Pilot Knob Rural Wd 1 Doe Run Area have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are 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 Pilot Knob Rural Wd 1 Doe Run Area'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, 2 are 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 Pilot Knob Rural Wd 1 Doe Run Area's water quality report?
As a community water system, Pilot Knob Rural Wd 1 Doe Run Area 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 St. Francois County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Farmington Pws | St. Francois | 18,217 | Community | Groundwater |
| Park Hills Pws | St. Francois | 8,587 | Community | Groundwater |
| Desloge Pws | St. Francois | 5,034 | Community | Groundwater |
| Bonne Terre Pws | St. Francois | 3,537 | Community | Groundwater |
| Bonne Terre Prison | St. Francois | 3,500 | Community | Groundwater |
| Farmington Correctional Center | St. Francois | 3,500 | 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, “Pilot Knob Rural Wd 1 Doe Run Area, PWSID MO4021451, Missouri”, https://aquacensus.com/water-systems/missouri/pilot-knob-rural-wd-1-doe-run-area-mo4021451 (data as of October 1, 2026).