Public water system · MO3010642
ActivePilot Grove Pws
At a glance
Pilot Grove Pws (PWSID MO3010642) is an active community water system in Cooper County, Missouri. It reports serving 768 people through 313 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
768
Service connections
313
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Pilot Grove Pws compare with other water systems in Cooper County?
By EPA's size categories, Pilot Grove Pws is a small system (501 to 3,300 people). Cooper County has 8 active public water systems, and Pilot Grove Pws is the 3rd-largest of them by population served. Its population served is about half of the county average of 1,624 people per system, and accounts for 5.9% of the 12,993 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 Grove Pws 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 Grove Pws?
EPA lists Pilot Grove Pws 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. 8 of the 8 active systems in Cooper County (100%) are also owned by a local government.
Does Pilot Grove Pws have drinking water violations?
EPA's records list 8 violations for this system; 2 are health-based, and the most recent began in July 2025. The violations listed here began between May 1992 and July 2025. By type: 5 monitoring and reporting, 1 reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 5 as archived, 2 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 |
| 2010-03-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2006-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1993-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1992-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | 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.
Pilot Grove Pws: frequently asked questions
Who runs Pilot Grove Pws?
Pilot Grove Pws (PWSID MO3010642) 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 Grove Pws serve?
Pilot Grove Pws reports serving 768 people through 313 service connections in Cooper County, Missouri.
Where does Pilot Grove Pws 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 Grove Pws have any drinking water violations?
EPA's records list 8 violations for this system; 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 Grove Pws' 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; 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 Grove Pws' water quality report?
As a community water system, Pilot Grove Pws 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 Cooper County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Boonville Pws | Cooper | 7,964 | Community | Surface water |
| Cooper County Consolidated Pwsd # 1 | Cooper | 2,451 | Community | Purchased surface water |
| Cooper County Pwsd 1 | Cooper | 562 | Community | Groundwater |
| Otterville Pws | Cooper | 450 | Community | Groundwater |
| Bunceton Pws | Cooper | 337 | Community | Groundwater |
| Prairie Home Pws | Cooper | 280 | 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 Grove Pws, PWSID MO3010642, Missouri”, https://aquacensus.com/water-systems/missouri/pilot-grove-pws-mo3010642 (data as of October 1, 2026).