Public water system · MO4010154
ActiveChaffee Pws
At a glance
Chaffee Pws (PWSID MO4010154) is an active community water system in Scott County, Missouri. It reports serving 3,054 people through 1,206 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 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
3,054
Service connections
1,206
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Chaffee Pws compare with other water systems in Scott County?
By EPA's size categories, Chaffee Pws is a small system (501 to 3,300 people). Scott County has 18 active public water systems, and Chaffee Pws is the 4th-largest of them by population served. Its population served is about 61% above the county average of 1,901 people per system, and accounts for 8.9% of the 34,210 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 Chaffee Pws is about half of 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 Chaffee Pws?
EPA lists Chaffee 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. 14 of the 18 active systems in Scott County (78%) are also owned by a local government.
Does Chaffee Pws have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between March 2000 and July 2025. By type: 5 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 5 as resolved and 1 as archived. 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 |
|---|---|---|---|---|
| 2025-07-01 | 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 of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Archived |
| 2017-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2000-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 6 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.
Chaffee Pws: frequently asked questions
Who runs Chaffee Pws?
Chaffee Pws (PWSID MO4010154) is a community water system owned by a local government. It is regulated by the MO state drinking water program.
How many people does Chaffee Pws serve?
Chaffee Pws reports serving 3,054 people through 1,206 service connections in Scott County, Missouri.
Where does Chaffee 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 Chaffee Pws have any drinking water violations?
EPA's records list 6 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 Chaffee 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 6 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 Chaffee Pws' water quality report?
As a community water system, Chaffee 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 Scott County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sikeston Pws | Scott | 16,291 | Community | Groundwater |
| Scott City Pws | Scott | 4,653 | Community | Groundwater |
| Scott County Pwsd 4 | Scott | 3,150 | Community | Groundwater |
| Oran Pws | Scott | 1,294 | Community | Groundwater |
| Miner Pws | Scott | 1,135 | Community | Groundwater |
| Benton Pws | Scott | 885 | 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, “Chaffee Pws, PWSID MO4010154, Missouri”, https://aquacensus.com/water-systems/missouri/chaffee-pws-mo4010154 (data as of October 1, 2026).