Public water system · AR0000061
ActiveDiamond City Water
At a glance
Diamond City Water (PWSID AR0000061) is an active community water system in Boone County, Arkansas. It reports serving 1,290 people through 516 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 May 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,290
Service connections
516
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Diamond City Water compare with other water systems in Boone County?
By EPA's size categories, Diamond City Water is a small system (501 to 3,300 people). Boone County has 14 active public water systems, and Diamond City Water is the 3rd-largest of them by population served. Its population served is about 30% below the county average of 1,842 people per system, and accounts for 5% of the 25,789 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 Diamond City Water 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 Diamond City Water?
EPA lists Diamond City Water 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 14 active systems in Boone County (57%) are also owned by a local government.
Does Diamond City Water have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in May 2021. The violations listed here began between November 2019 and May 2021. By type: 9 required treatment not met, 2 public notice, recordkeeping or other and 1 reporting. The contaminant or rule involved most often is Stage 1 Disinfectants and Disinfection Byproducts Rule (9 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 |
|---|---|---|---|---|
| 2021-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-07-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2020-06-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2020-06-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-05-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2020-04-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2020-03-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2020-02-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2020-01-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-01-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2019-12-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2019-11-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | 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.
Diamond City Water: frequently asked questions
Who runs Diamond City Water?
Diamond City Water (PWSID AR0000061) is a community water system owned by a local government. It is regulated by the AR state drinking water program.
How many people does Diamond City Water serve?
Diamond City Water reports serving 1,290 people through 516 service connections in Boone County, Arkansas.
Where does Diamond City Water 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 Diamond City Water 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 May 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 Diamond City Water'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, 9 are health-based, and the most recent began in May 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 Diamond City Water's water quality report?
As a community water system, Diamond City Water 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 Boone County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Harrison Waterworks | Boone | 17,455 | Community | Purchased surface water |
| Bergman Waterworks | Boone | 3,285 | Community | Groundwater |
| Omaha Waterworks | Boone | 1,188 | Community | Purchased surface water |
| Cottonwood Water Association | Boone | 820 | Community | Purchased surface water |
| Alpena Waterworks | Boone | 568 | Community | Purchased surface water |
| Lead Hill Waterworks | Boone | 525 | 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, “Diamond City Water, PWSID AR0000061, Arkansas”, https://aquacensus.com/water-systems/arkansas/diamond-city-water-ar0000061 (data as of October 1, 2026).