Public water system · AR0000437
ActiveGrannis Waterworks
At a glance
Grannis Waterworks (PWSID AR0000437) is an active community water system in Polk County, Arkansas. It reports serving 548 people through 228 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2001.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
548
Service connections
228
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Grannis Waterworks compare with other water systems in Polk County?
By EPA's size categories, Grannis Waterworks is a small system (501 to 3,300 people). Polk County has 15 active public water systems. Its population served is about 57% below the county average of 1,274 people per system, and accounts for 2.9% of the 19,109 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 Grannis Waterworks is well 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 Grannis Waterworks?
EPA lists Grannis 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. 8 of the 15 active systems in Polk County (53%) are also owned by a local government.
Does Grannis Waterworks have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2001. The violations listed here began between July 1999 and December 2001. By type: 2 monitoring and reporting. The contaminants or rules involved are Total coliform bacteria (TCR) and Surface Water Treatment Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2001-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1999-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Archived |
All 2 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.
Grannis Waterworks: frequently asked questions
Who runs Grannis Waterworks?
Grannis Waterworks (PWSID AR0000437) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Grannis Waterworks serve?
Grannis Waterworks reports serving 548 people through 228 service connections in Polk County, Arkansas.
Where does Grannis 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 Grannis Waterworks have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in December 2001. 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 Grannis 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 2 violations for this system; none is health-based, and the most recent began in December 2001. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.
Where can I find Grannis Waterworks' water quality report?
As a community water system, Grannis 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 Polk County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mena Water Department | Polk | 5,604 | Community | Surface water |
| Sevier Co Water Association | Polk + 1 more | 5,365 | Community | Surface water |
| Wickes Waterworks | Polk | 2,014 | Community | Purchased surface water |
| Acorn Rural Water Assn | Polk | 1,975 | Community | Purchased surface water |
| Freedom Public Water Authority | Polk | 1,935 | Community | Purchased surface water |
| Cove Waterworks | Polk | 651 | Community | Purchased surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Grannis Waterworks, PWSID AR0000437, Arkansas”, https://aquacensus.com/water-systems/arkansas/grannis-waterworks-ar0000437 (data as of October 1, 2026).