Public water system · AR0000146
ActiveOak Grove Water Association
At a glance
Oak Grove Water Association (PWSID AR0000146) is an active community water system in Crawford County, Arkansas. It reports serving 2,963 people through 1,172 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in June 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,963
Service connections
1,172
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Oak Grove Water Association compare with other water systems in Crawford County?
By EPA's size categories, Oak Grove Water Association is a small system (501 to 3,300 people). Crawford County has 15 active public water systems, and Oak Grove Water Association is the 6th-largest of them by population served. Its population served is about 22% below the county average of 3,812 people per system, and accounts for 5.2% of the 57,183 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 Oak Grove Water Association is about 56% 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. 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 Oak Grove Water Association?
EPA lists Oak Grove Water Association 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 15 active systems in Crawford County (87%) are also owned by a local government.
Does Oak Grove Water Association have drinking water violations?
EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in June 2025. The violations listed here began between July 1995 and June 2025. By type: 3 public notice, recordkeeping or other, 3 monitoring and reporting, 2 monitoring, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 8 as resolved and 2 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 |
|---|---|---|---|---|
| 2025-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2013-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2009-08-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2002-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1995-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Archived |
| 1995-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 10 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.
Oak Grove Water Association: frequently asked questions
Who runs Oak Grove Water Association?
Oak Grove Water Association (PWSID AR0000146) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Oak Grove Water Association serve?
Oak Grove Water Association reports serving 2,963 people through 1,172 service connections in Crawford County, Arkansas.
Where does Oak Grove Water Association 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 Oak Grove Water Association have any drinking water violations?
EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in June 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 Oak Grove Water Association'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 10 violations for this system; 1 is health-based, and the most recent began in June 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Oak Grove Water Association's water quality report?
As a community water system, Oak Grove Water Association 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 Crawford County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Van Buren Waterworks | Crawford | 22,725 | Community | Purchased surface water |
| Cedarville Waterworks Fbcc | Crawford | 8,529 | Community | Purchased surface water |
| Hwy 71 Water District #1 Pwa | Crawford | 6,275 | Community | Purchased surface water |
| Alma Waterworks | Crawford | 6,123 | Community | Surface water |
| Concord Water & Sewer Pfb of Crawford Co | Crawford | 3,071 | Community | Purchased surface water |
| Kibler Water System | Crawford | 1,815 | Community | Purchased surface water |
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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, “Oak Grove Water Association, PWSID AR0000146, Arkansas”, https://aquacensus.com/water-systems/arkansas/oak-grove-water-association-ar0000146 (data as of October 1, 2026).