Non-Transient Non-Community · PWSID AK2390594

Denali - Main / Front Country

Serves 4,741 peopleSurface WaterOwner: FederalDenali Park, Alaska

Nothing open that measures the water, but 2 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2015: 23 violations. 1 treatment lapse · 21 missed or late tests · 1 notice or report. Most recent began 2025-07-06.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit

1Treatment lapse

21Missed or late test1 open

1Notice or report1 open

More violations on record than 70% of active water systems in Alaska. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.

4% treatment lapse · 191% missed or late test · 214% notice or report · 1

Across Alaska, 88% of violations are missed or late tests and 2% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 13 results on file · action level 15 ppb

6.7 ppb

6.3 ppb

5.3 ppb

4.3 ppb

4 ppb

2.6 ppb

2.1 ppb

2 ppb

1.9 ppb

1.5 ppb

Copper, 90th percentile 12 results on file · action level 1.3 mg/L

2.7 mg/L

2.6 mg/L

2.5 mg/L

2.4 mg/L

2.2 mg/L

2 mg/L

1.8 mg/L

1.7 mg/L

1.6 mg/L

1.5 mg/L

Open now (2)

2025-07-06Lead and Copper RuleLead Consumer NoticeOpen
2015-09-11Unknown contaminantSanitary Survey (TCR)Open

Every violation on record

2025-07-06Lead and Copper RuleLead Consumer NoticeOpen
2024-07-02Lead and Copper RuleLead Consumer NoticeBack in compliance
2024-05-02Lead and Copper RuleLead Consumer NoticeBack in compliance
2023-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
2023-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
2023-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
2023-04-01Revised Total Coliform RuleMONBack in compliance
2023-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
2023-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
2022-05-01Surface water treatment (SWTR)Treatment Technique (SWTR and GWR)Back in compliance
2021-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Period ended · no return to compliance on file
2021-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Period ended · no return to compliance on file
2021-05-01Revised Total Coliform RuleMONBack in compliance
2021-04-01Revised Total Coliform RuleMONBack in compliance
2021-02-01Revised Total Coliform RuleMONBack in compliance
2020-11-01Revised Total Coliform RuleMONBack in compliance
2020-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
2019-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
2019-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
2019-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
2019-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
2017-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
2015-09-11Unknown contaminantSanitary Survey (TCR)Open

System details

Population served	4,741
Service connections	26
Water source	Surface Water
System type	Non-Transient Non-Community
Owner	Federal
Status	Active
City	Denali Park
EPA ZIP on file	99755

Areas served

Denali Park, Denali Borough

Reading this record

Denali - Main / Front Country is a non-transient non-community that draws from surface water and serves about 4,741 people in Denali Park, Alaska. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.