Public water system · OK3005745
ActiveDiamondhead Homeowners Assoc
At a glance
Diamondhead Homeowners Assoc (PWSID OK3005745) is an active community water system in Osage County, Oklahoma. It reports serving 50 people through 25 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50
Service connections
25
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Diamondhead Homeowners Assoc compare with other water systems in Osage County?
By EPA's size categories, Diamondhead Homeowners Assoc is a very small system (500 people or fewer). Osage County has 29 active public water systems. Its population served is well below the county average of 1,154 people per system, and accounts for 0.1% of the 33,457 people reported by systems filed under the county. Across Oklahoma, the 1,254 active systems average 2,907 people each. Nationally, the average active community water system reports serving 6,703 people, so Diamondhead Homeowners Assoc 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. Oklahoma has 864 active community water systems, 69% of the state's 1,254 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 299 Oklahoma systems (24%) list purchased surface water as their primary source.
Who owns and regulates Diamondhead Homeowners Assoc?
EPA lists Diamondhead Homeowners Assoc as privately owned. The OK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 29 active systems in Osage County (21%) are also privately owned.
Does Diamondhead Homeowners Assoc have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2024. The violations listed here began between December 2013 and October 2024. By type: 6 monitoring and reporting, 2 required treatment not met, 2 public notice, recordkeeping or other, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 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 |
|---|---|---|---|---|
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2019-03-22 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2017-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2017-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2015-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2015-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2015-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2015-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2014-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2013-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | 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.
Diamondhead Homeowners Assoc: frequently asked questions
Who runs Diamondhead Homeowners Assoc?
Diamondhead Homeowners Assoc (PWSID OK3005745) is a community water system privately owned. It is regulated by the OK state drinking water program.
How many people does Diamondhead Homeowners Assoc serve?
Diamondhead Homeowners Assoc reports serving 50 people through 25 service connections in Osage County, Oklahoma.
Where does Diamondhead Homeowners Assoc 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 Diamondhead Homeowners Assoc have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2024. 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 Diamondhead Homeowners Assoc'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, 2 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the OK state drinking water program.
Where can I find Diamondhead Homeowners Assoc's water quality report?
As a community water system, Diamondhead Homeowners Assoc 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 Osage County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Skiatook Pwa | Osage | 8,110 | Community | Surface water |
| Osage Co Rwd #15 | Osage | 6,647 | Community | Purchased surface water |
| Pawhuska | Osage | 3,800 | Community | Surface water |
| Hominy | Osage | 2,584 | Community | Surface water |
| Mccord Rwd #3 | Osage | 1,800 | Community | Purchased surface water |
| Fairfax | Osage | 1,555 | Community | 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, “Diamondhead Homeowners Assoc, PWSID OK3005745, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/diamondhead-homeowners-assoc-ok3005745 (data as of October 1, 2026).