Public water system · AK2390586
ActiveDenali - Rock Creek Hq.
At a glance
Denali - Rock Creek Hq. (PWSID AK2390586) is an active community water system in Denali Borough County, Alaska. It reports serving 300 people through 61 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
300
Service connections
61
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Denali - Rock Creek Hq. compare with other water systems in Denali Borough County?
By EPA's size categories, Denali - Rock Creek Hq. is a very small system (500 people or fewer). Denali Borough County has 56 active public water systems. Its population served is roughly in line with the county average of 326 people per system, and accounts for 1.6% of the 18,228 people reported by systems filed under the county. Across Alaska, the 1,322 active systems average 653 people each. Nationally, the average active community water system reports serving 6,703 people, so Denali - Rock Creek Hq. 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. Alaska has 406 active community water systems, 31% of the state's 1,322 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,054 Alaska systems (80%) list groundwater as their primary source.
Who owns and regulates Denali - Rock Creek Hq.?
EPA lists Denali - Rock Creek Hq. as owned by the federal government. The AK state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 7 of the 56 active systems in Denali Borough County (13%) are also owned by the federal government.
Does Denali - Rock Creek Hq. have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025. The violations listed here began between April 2023 and July 2025. By type: 10 monitoring and reporting and 2 monitoring. The contaminant or rule involved most often is Revised Total Coliform Rule (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 |
|---|---|---|---|---|
| 2025-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2025-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-05-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Vinyl chloridecode 2976 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | 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.
Denali - Rock Creek Hq.: frequently asked questions
Who runs Denali - Rock Creek Hq.?
Denali - Rock Creek Hq. (PWSID AK2390586) is a community water system owned by the federal government. It is regulated by the AK state drinking water program.
How many people does Denali - Rock Creek Hq. serve?
Denali - Rock Creek Hq. reports serving 300 people through 61 service connections in Denali Borough County, Alaska.
Where does Denali - Rock Creek Hq. get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Denali - Rock Creek Hq. have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 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 Denali - Rock Creek Hq.'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, none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AK state drinking water program.
Where can I find Denali - Rock Creek Hq.'s water quality report?
As a community water system, Denali - Rock Creek Hq. 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 Denali Borough County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Denali - Main / Front Country | Denali Borough | 4,122 | Non-transient non-community | Surface water |
| Princess Homestead Lodge | Denali Borough | 1,810 | Transient non-community | Groundwater |
| Holland Princess Denali Wilderness Ldg | Denali Borough | 1,392 | Transient non-community | Groundwater |
| Holland America Denali Lodge | Denali Borough | 1,372 | Transient non-community | Groundwater |
| Grande Denali / Denali Bluffs | Denali Borough | 1,000 | Transient non-community | Surface water |
| Northern Lights Well | Denali Borough | 725 | Transient non-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, “Denali - Rock Creek Hq., PWSID AK2390586, Alaska”, https://aquacensus.com/water-systems/alaska/denali-rock-creek-hq-ak2390586 (data as of October 1, 2026).