Public water system · AR0000315
ActiveAdc - Cummins Unit Maint
At a glance
Adc - Cummins Unit Maint (PWSID AR0000315) is an active community water system in Lincoln County, Arkansas. It reports serving 3,800 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,800
Service connections
3
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Adc - Cummins Unit Maint compare with other water systems in Lincoln County?
By EPA's size categories, Adc - Cummins Unit Maint is a medium system (3,301 to 10,000 people). Lincoln County has 5 active public water systems, and Adc - Cummins Unit Maint is the 2nd-largest of them by population served. Its population served is about 31% above the county average of 2,897 people per system, and accounts for 26% of the 14,487 people reported by systems filed under the county. Across Arkansas, the 853 active systems average 3,592 people each. Nationally, the average active community water system reports serving 6,703 people, so Adc - Cummins Unit Maint is about 43% 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. Arkansas has 660 active community water systems, 77% of the state's 853 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 461 Arkansas systems (54%) list groundwater as their primary source.
Who owns and regulates Adc - Cummins Unit Maint?
EPA lists Adc - Cummins Unit Maint as owned by a state government. The AR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 5 active systems in Lincoln County (20%) are also owned by a state government.
Does Adc - Cummins Unit Maint have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2021. The violations listed here began between December 2012 and July 2021. By type: 5 public notice, recordkeeping or other, 3 contaminant level above the legal limit, 2 monitoring and reporting, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (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 |
|---|---|---|---|---|
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2021-06-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-11-01 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | 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 |
| 2014-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2014-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2014-03-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2014-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2012-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
Adc - Cummins Unit Maint: frequently asked questions
Who runs Adc - Cummins Unit Maint?
Adc - Cummins Unit Maint (PWSID AR0000315) is a community water system owned by a state government. It is regulated by the AR state drinking water program.
How many people does Adc - Cummins Unit Maint serve?
Adc - Cummins Unit Maint reports serving 3,800 people through 3 service connections in Lincoln County, Arkansas.
Where does Adc - Cummins Unit Maint 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 Adc - Cummins Unit Maint have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2021. 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 Adc - Cummins Unit Maint'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, 3 are health-based, and the most recent began in July 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Adc - Cummins Unit Maint's water quality report?
As a community water system, Adc - Cummins Unit Maint 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 |
|---|---|---|---|---|
| Yorktown Water Association | Lincoln | 7,364 | Community | Groundwater |
| Star City Waterworks | Lincoln | 2,173 | Community | Groundwater |
| Gould Municipal Water-Sewer | Lincoln | 837 | Community | Groundwater |
| Grady Waterworks | Lincoln | 313 | 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, “Adc - Cummins Unit Maint, PWSID AR0000315, Arkansas”, https://aquacensus.com/water-systems/arkansas/adc-cummins-unit-maint-ar0000315 (data as of October 1, 2026).