DENALI PARK, AK · Denali Borough County

DENALI - ROCK CREEK HQ. Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Alaska’s official records. Always confirm current status with Alaska before making decisions based on this information.

System facts

System ID (PWSID): AK2390586
System type: Community Water System
Population served: 300
Service connections: 61
Ownership: federal government
Water source: groundwater (wells)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2025 – July 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2025 – July 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
May 1, 2025 – May 31, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2025 – May 31, 2025
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Vinyl chloride
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Benzene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Toluene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Styrene
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2022 – June 7, 2022
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
February 26, 2022 – July 1, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2021 – September 14, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2021 – June 28, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2021 – February 28, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2020 – December 18, 2020
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2019 – November 5, 2019
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – July 15, 2009
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
May 31, 1986 – May 31, 1990
Archived
Monitoring, Regular
—
Selenium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Chromium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Barium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
BHC-GAMMA
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Toxaphene
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
2,4-D
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
2,4,5-TP
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Cadmium
October 1, 1979 – October 31, 1979
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – July 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2025 – July 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
May 1, 2025 – May 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
May 1, 2025 – May 31, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Carbon tetrachloride	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Benzene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Toluene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Styrene	—	Resolved
April 1, 2022 – June 7, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
February 26, 2022 – July 1, 2023	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
July 1, 2021 – September 14, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2021 – June 28, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
February 1, 2021 – February 28, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2020 – December 18, 2020	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2019 – November 5, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2009 – July 15, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
May 31, 1986 – May 31, 1990	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Selenium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Chromium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Barium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Toxaphene	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	2,4-D	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	2,4,5-TP	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Cadmium	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 5, 2025State Compliance achieved2 linked violations
June 6, 2025State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
June 3, 2025State Compliance achieved2 linked violations
November 22, 2024State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
October 9, 2024State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
September 25, 2024State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
July 10, 2023State Compliance achieved21 linked violations
July 1, 2023State Compliance achieved1 linked violation
November 1, 2022State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 29, 2022State Compliance Meeting conducted1 linked violation
June 16, 2022State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 7, 2022State Compliance achieved2 linked violations
September 14, 2021State Compliance achieved1 linked violation
June 28, 2021State Compliance achieved1 linked violation
March 24, 2021State Compliance achieved2 linked violations
December 18, 2020State Compliance achieved2 linked violations
November 5, 2019State Compliance achieved1 linked violation
July 15, 2009State Compliance achieved1 linked violation
August 26, 2007State Compliance achieved1 linked violation
January 20, 2005State Othergeneral compliance action — not tied to a specific violation on record
March 29, 2002State Othergeneral compliance action — not tied to a specific violation on record
March 6, 2002State Othergeneral compliance action — not tied to a specific violation on record
January 9, 2002State Othergeneral compliance action — not tied to a specific violation on record
January 2, 2002State Othergeneral compliance action — not tied to a specific violation on record
November 30, 2001State Other2 linked violations
July 2, 2001State Othergeneral compliance action — not tied to a specific violation on record
May 11, 2001State Othergeneral compliance action — not tied to a specific violation on record
December 12, 2000State Compliance achieved1 linked violation
July 20, 2000State Othergeneral compliance action — not tied to a specific violation on record
May 28, 1999State Other1 linked violation
April 5, 1999State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 3, 1998State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 2, 1998State Other1 linked violation
August 7, 1996State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 2, 1995State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 18, 1995State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 20, 1995State Othergeneral compliance action — not tied to a specific violation on record
June 29, 1994State Othergeneral compliance action — not tied to a specific violation on record
January 11, 1994State Violation/Reminder Notice1 linked violation
September 11, 1992State Violation/Reminder Notice8 linked violations
March 13, 1992State Other12 linked violations
October 21, 1991State Violation/Reminder Notice14 linked violations
May 30, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Contact

YOUNG, ROBERT

907-683-9569

DENALI PARK, AK 99755