Public water system · MO6031493
ActiveRockport Subdivision
At a glance
Rockport Subdivision (PWSID MO6031493) is an active community water system in Lincoln County, Missouri. It reports serving 204 people through 201 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in February 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
204
Service connections
201
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Rockport Subdivision compare with other water systems in Lincoln County?
By EPA's size categories, Rockport Subdivision is a very small system (500 people or fewer). Lincoln County has 45 active public water systems. Its population served is well below the county average of 1,000 people per system, and accounts for 0.5% of the 45,010 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 Rockport Subdivision 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 Rockport Subdivision?
EPA lists Rockport Subdivision as privately owned. 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. 37 of the 45 active systems in Lincoln County (82%) are also privately owned.
Does Rockport Subdivision have drinking water violations?
EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in February 2024. The violations listed here began between September 2011 and February 2024. By type: 4 public notice, recordkeeping or other, 2 required treatment not met and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Public Notice (3 of them). EPA lists 6 as resolved and 2 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. 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 |
|---|---|---|---|---|
| 2024-02-07 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2023-11-29 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2018-02-08 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2017-12-01 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2015-01-11 | Public notice, recordkeeping or otherFailure to Consult with State · code 20 | Groundwater Rulecode 0700 | No | Resolved |
| 2014-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2011-11-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2011-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
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.
Rockport Subdivision: frequently asked questions
Who runs Rockport Subdivision?
Rockport Subdivision (PWSID MO6031493) is a community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Rockport Subdivision serve?
Rockport Subdivision reports serving 204 people through 201 service connections in Lincoln County, Missouri.
Where does Rockport Subdivision 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 Rockport Subdivision have any drinking water violations?
EPA's records list 8 violations for this system; 4 are health-based, and the most recent began in February 2024. 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 Rockport Subdivision'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; 4 are health-based, and the most recent began in February 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MO state drinking water program.
Where can I find Rockport Subdivision's water quality report?
As a community water system, Rockport Subdivision 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 Lincoln County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Troy Pws | Lincoln | 15,000 | Community | Groundwater |
| Lincoln County Pwsd 1 | Lincoln | 14,000 | Community | Groundwater |
| Moscow Mills Pws | Lincoln | 4,500 | Community | Groundwater |
| Elsberry Pws | Lincoln | 2,076 | Community | Groundwater |
| Winfield Pws | Lincoln | 1,489 | Community | Purchased groundwater |
| Mo American Warren County Water & Sewer | Lincoln + 1 more | 1,200 | 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, “Rockport Subdivision, PWSID MO6031493, Missouri”, https://aquacensus.com/water-systems/missouri/rockport-subdivision-mo6031493 (data as of October 1, 2026).