Public water system record
Denali - Rock Creek HQ.
Serves Denali Park and Healy, Denali Borough, AK · 300 people served
Federal records show 1 health-based violation and 34 monitoring/reporting issues for Denali - Rock Creek HQ. in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 34
Key facts
- Denali - Rock Creek HQ. draws water from 1 well.
- Record on file since 1979, with 0 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 73 service lines.
Check whether Denali - Rock Creek HQ. serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 26, 2022 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
May 1, 2025 | Resolved |
|
Styrene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Toluene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Benzene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
Full record since 1979
EPA's records for Denali - Rock Creek HQ. go back to 1979. Before October 20, 2016 they list no health-based violations and 36 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 14 |
| 1980s | 0 | 1 |
| 1990s | 0 | 16 |
| 2000s | 0 | 5 |
| October 20, 2016 to 2019 | 0 | 1 |
| 2020s | 1 | 33 |
What the violations mean
Groundwater Rule
1 incidentThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Denali - Rock Creek HQ. draws water from 1 well.
Annual water quality report
Denali - Rock Creek HQ. must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Denali - Rock Creek HQ. for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Alaska.
Certified drinking water labs by state EPA guidance for private wells