Public water system · AR0000392
ActiveMount Ida Waterworks
At a glance
Mount Ida Waterworks (PWSID AR0000392) is an active community water system in Montgomery County, Arkansas. It reports serving 3,218 people through 1,474 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in April 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,218
Service connections
1,474
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Mount Ida Waterworks compare with other water systems in Montgomery County?
By EPA's size categories, Mount Ida Waterworks is a small system (501 to 3,300 people). Montgomery County has 12 active public water systems, and Mount Ida Waterworks is the largest of them by population served. Its population served is about 7.6 times the county average of 422 people per system, and accounts for 64% of the 5,061 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 Mount Ida Waterworks is about half of 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 237 Arkansas systems (28%) list purchased surface water as their primary source.
Who owns and regulates Mount Ida Waterworks?
EPA lists Mount Ida Waterworks as owned by a local 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. 4 of the 12 active systems in Montgomery County (33%) are also owned by a local government.
Does Mount Ida Waterworks have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in April 2026. The violations listed here began between January 2023 and April 2026. By type: 8 contaminant level above the legal limit, 2 public notice, recordkeeping or other, 1 required treatment not met and 1 reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (6 of them). EPA lists 6 as resolved, 4 as archived and 2 as addressed. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Addressed means the violation is not resolved or archived and is covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-04-30 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Addressed |
| 2026-04-30 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Addressed |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2023-09-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-06-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | 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.
Mount Ida Waterworks: frequently asked questions
Who runs Mount Ida Waterworks?
Mount Ida Waterworks (PWSID AR0000392) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Mount Ida Waterworks serve?
Mount Ida Waterworks reports serving 3,218 people through 1,474 service connections in Montgomery County, Arkansas.
Where does Mount Ida Waterworks get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Mount Ida Waterworks have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in April 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 Mount Ida Waterworks' 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, 9 are health-based, and the most recent began in April 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Mount Ida Waterworks' water quality report?
As a community water system, Mount Ida Waterworks 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 Montgomery County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Norman Waterworks | Montgomery | 750 | Community | Purchased surface water |
| Oden-Pencil Bluff Water Assn | Montgomery | 393 | Community | Purchased surface water |
| Little Fir Landing | Montgomery | 250 | Transient non-community | Groundwater |
| Usfs Albert Pike Rec Area | Montgomery | 200 | Transient non-community | Groundwater |
| Uscoe Oc - Little Fir | Montgomery | 100 | Transient non-community | Surface water |
| Hwy 27 Fishing Village | Montgomery | 50 | 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, “Mount Ida Waterworks, PWSID AR0000392, Arkansas”, https://aquacensus.com/water-systems/arkansas/mount-ida-waterworks-ar0000392 (data as of October 1, 2026).