Public water system · AR0000025
ActiveMountain Home Waterworks
At a glance
Mountain Home Waterworks (PWSID AR0000025) is an active community water system in Baxter County, Arkansas. It reports serving 19,618 people through 8,273 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in July 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
19,618
Service connections
8,273
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Mountain Home Waterworks compare with other water systems in Baxter County?
By EPA's size categories, Mountain Home Waterworks is a large system (10,001 to 100,000 people). Baxter County has 50 active public water systems, and Mountain Home Waterworks is the largest of them by population served. Its population served is about 25 times the county average of 778 people per system, and accounts for 50% of the 38,879 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 Mountain Home Waterworks is about 193% above 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 75 Arkansas systems (8.8%) list surface water as their primary source.
Who owns and regulates Mountain Home Waterworks?
EPA lists Mountain Home 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. 13 of the 50 active systems in Baxter County (26%) are also owned by a local government.
Does Mountain Home Waterworks have drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in July 2014. The violations listed here began between March 1995 and July 2014. By type: 3 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 3 as resolved and 1 as archived. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2014-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
All 4 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.
Mountain Home Waterworks: frequently asked questions
Who runs Mountain Home Waterworks?
Mountain Home Waterworks (PWSID AR0000025) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Mountain Home Waterworks serve?
Mountain Home Waterworks reports serving 19,618 people through 8,273 service connections in Baxter County, Arkansas.
Where does Mountain Home Waterworks get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Mountain Home Waterworks have any drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in July 2014. 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 Mountain Home 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. EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in July 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Mountain Home Waterworks' water quality report?
As a community water system, Mountain Home 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 Baxter County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| North East Public Water Auth | Baxter | 4,690 | Community | Purchased surface water |
| Lakeview-Midway Public Water Authority | Baxter | 4,383 | Community | Purchased surface water |
| Gassville Waterworks | Baxter | 2,040 | Community | Groundwater under influence of surface water |
| Brunner Hill Water Assoc | Baxter | 1,265 | Community | Groundwater |
| Cotter Waterworks | Baxter | 1,233 | Community | Groundwater |
| Norfork Waterworks | Baxter | 918 | 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, “Mountain Home Waterworks, PWSID AR0000025, Arkansas”, https://aquacensus.com/water-systems/arkansas/mountain-home-waterworks-ar0000025 (data as of October 1, 2026).