Public water system · IN2120010
ActiveCornerstone Assembly
At a glance
Cornerstone Assembly (PWSID IN2120010) is an active transient non-community water system in Clinton County, Indiana. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in April 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cornerstone Assembly compare with other water systems in Clinton County?
By EPA's size categories, Cornerstone Assembly is a very small system (500 people or fewer). Clinton County has 32 active public water systems. Its population served is well below the county average of 774 people per system, and accounts for 0.2% of the 24,769 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Cornerstone Assembly 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. Indiana has 2,596 active transient non-community water systems, 65% 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 Cornerstone Assembly?
EPA lists Cornerstone Assembly 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. 25 of the 32 active systems in Clinton County (78%) are also privately owned.
Does Cornerstone Assembly have drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in April 2025. The violations listed here began between January 2003 and April 2025. By type: 5 monitoring, 5 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (5 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2025-04-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2019-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-10-01 | MonitoringMonitoring, Additional Routine (RTCR) · code 3B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2004-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | 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.
Cornerstone Assembly: frequently asked questions
Who runs Cornerstone Assembly?
Cornerstone Assembly (PWSID IN2120010) is a transient non-community water system privately owned. It is regulated by the IN state drinking water program.
How many people does Cornerstone Assembly serve?
Cornerstone Assembly reports serving 50 people through 1 service connection in Clinton County, Indiana.
Where does Cornerstone Assembly 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 Cornerstone Assembly have any drinking water violations?
EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in April 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 Cornerstone Assembly'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 11 violations for this system; 1 is health-based, and the most recent began in April 2025. For current results, consult EPA ECHO, or the IN state drinking water program.
Where can I find Cornerstone Assembly's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cornerstone Assembly 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 Clinton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Frankfort Water Works | Clinton | 16,422 | Community | Groundwater |
| Rossville Water Works | Clinton | 1,653 | Community | Groundwater |
| Mulberry Water Works | Clinton | 1,252 | Community | Groundwater |
| Clinton Prairie School Corporation | Clinton | 1,150 | Non-transient non-community | Groundwater |
| Kirklin Water Department | Clinton | 788 | Community | Groundwater |
| Colfax Water Company | Clinton | 690 | 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, “Cornerstone Assembly, PWSID IN2120010, Indiana”, https://aquacensus.com/water-systems/indiana/cornerstone-assembly-in2120010 (data as of October 1, 2026).