Public water system · IN5229003
ActiveMaplewood Estates Mhc LLC
At a glance
Maplewood Estates Mhc LLC (PWSID IN5229003) is an active community water system in Hamilton County, Indiana. It reports serving 37 people through 24 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
37
Service connections
24
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Maplewood Estates Mhc LLC compare with other water systems in Hamilton County?
By EPA's size categories, Maplewood Estates Mhc LLC is a very small system (500 people or fewer). Hamilton County has 66 active public water systems. Its population served is well below the county average of 3,475 people per system, and accounts for less than 0.1% of the 229,348 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active community water system reports serving 6,703 people, so Maplewood Estates Mhc LLC 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. Indiana has 770 active community water systems, 19% of the state's 3,969 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,769 Indiana systems (95%) list groundwater as their primary source.
Who owns and regulates Maplewood Estates Mhc LLC?
EPA lists Maplewood Estates Mhc LLC as privately owned. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 56 of the 66 active systems in Hamilton County (85%) are also privately owned.
Does Maplewood Estates Mhc LLC have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2025. The violations listed here began between October 2018 and October 2025. By type: 4 public notice, recordkeeping or other, 4 monitoring and 4 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 12 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-10-13 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2020-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2020-03-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2019-04-11 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2019-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2018-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | 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.
Maplewood Estates Mhc LLC: frequently asked questions
Who runs Maplewood Estates Mhc LLC?
Maplewood Estates Mhc LLC (PWSID IN5229003) is a community water system privately owned. It is regulated by the IN state drinking water program.
How many people does Maplewood Estates Mhc LLC serve?
Maplewood Estates Mhc LLC reports serving 37 people through 24 service connections in Hamilton County, Indiana.
Where does Maplewood Estates Mhc LLC 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 Maplewood Estates Mhc LLC have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 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 Maplewood Estates Mhc LLC'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, none is health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find Maplewood Estates Mhc LLC's water quality report?
As a community water system, Maplewood Estates Mhc LLC 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 Hamilton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Carmel Water Department | Hamilton | 99,927 | Community | Groundwater under influence of surface water |
| Citizens Water of Westfield, LLC | Hamilton | 61,493 | Community | Groundwater |
| Indiana American Water - Noblesville | Hamilton | 45,575 | Community | Groundwater |
| Cicero Water Department | Hamilton | 5,607 | Community | Groundwater |
| Indiana American Water - Sheridan | Hamilton | 4,435 | Community | Groundwater |
| Ruoff Music Center | Hamilton | 2,000 | Transient non-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, “Maplewood Estates Mhc LLC, PWSID IN5229003, Indiana”, https://aquacensus.com/water-systems/indiana/maplewood-estates-mhc-llc-in5229003 (data as of October 1, 2026).