Public water system · MO5303042
ActiveBig Bear Duplexes
At a glance
Big Bear Duplexes (PWSID MO5303042) is an active transient non-community water system in Camden County, Missouri. It reports serving 50 people through 31 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
31
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Big Bear Duplexes compare with other water systems in Camden County?
By EPA's size categories, Big Bear Duplexes is a very small system (500 people or fewer). Camden County has 226 active public water systems. Its population served is well below the county average of 250 people per system, and accounts for less than 0.1% of the 56,563 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Big Bear Duplexes is about 65% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Missouri has 1,103 active transient non-community water systems, 37% 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 Big Bear Duplexes?
EPA lists Big Bear Duplexes 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. 206 of the 226 active systems in Camden County (91%) are also privately owned.
Does Big Bear Duplexes have drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2026. The violations listed here began between October 2011 and January 2026. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 2 monitoring and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 10 as resolved 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. 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 |
|---|---|---|---|---|
| 2026-01-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Unaddressed |
| 2018-08-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2018-06-07 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2017-05-04 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2017-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-10-30 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2016-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2015-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2015-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 11 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.
Big Bear Duplexes: frequently asked questions
Who runs Big Bear Duplexes?
Big Bear Duplexes (PWSID MO5303042) is a transient non-community water system privately owned. It is regulated by the MO state drinking water program.
How many people does Big Bear Duplexes serve?
Big Bear Duplexes reports serving 50 people through 31 service connections in Camden County, Missouri.
Where does Big Bear Duplexes 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 Big Bear Duplexes have any drinking water violations?
EPA's records list 11 violations for this system; none is health-based, and the most recent began in January 2026. 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 Big Bear Duplexes' 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 11 violations for this system; none is health-based, and the most recent began in January 2026. For current results, consult EPA ECHO, or the MO state drinking water program.
Where can I find Big Bear Duplexes' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Big Bear Duplexes is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Camden County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Camden County Pwsd 4 Horseshoe Bend | Camden | 7,912 | Community | Groundwater |
| Camdenton Pws | Camden | 3,960 | Community | Groundwater |
| Osage Beach Premium Outlets | Camden | 3,100 | Non-transient non-community | Groundwater |
| Osage Beach East Pws | Camden | 2,611 | Community | Groundwater |
| Big Surf Waterpark Inc. | Camden | 2,500 | Transient non-community | Groundwater |
| Camden County Pwsd #4 Shawnee Bend | Camden | 2,065 | 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, “Big Bear Duplexes, PWSID MO5303042, Missouri”, https://aquacensus.com/water-systems/missouri/big-bear-duplexes-mo5303042 (data as of October 1, 2026).