Nanwalek
Published drinking-water records and contacts for Nanwalek. System AK2240464. Review sources and dates; not a real-time water assessment.
- System ID
- AK2240464
- State or territory
- AK
- Published population served
- 281
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 20 — 1996-01-01 – 2025-12-31
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0.00119 mg/L | 2023-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.00511 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.0025 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Lead (PB90) | 0.002883 mg/L | 2010-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0.0056 mg/L | 2009-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.0014 mg/L | 2008-07-01 – 2008-12-31 | 2026Q3 |
| Lead (PB90) | 0.0018 mg/L | 2008-01-01 – 2008-06-30 | 2026Q3 |
Published compliance history
453 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2026-06-01 – 2026-06-30 | Archived | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2026-06-01 – 2026-06-30 | Archived | No | 2026Q3 |
| Interim and Long Term 1 Enhanced Surface Water Treatment Rule / Monitoring, Turbidity (Enhanced SWTR) | 2026-06-01 – 2026-06-30 | Archived | No | 2026Q3 |
| Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter) | 2026-06-01 – 2026-06-30 | Archived | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2026-05-01 – 2026-05-31 | Archived | No | 2026Q3 |
| Interim and Long Term 1 Enhanced Surface Water Treatment Rule / Monitoring, Turbidity (Enhanced SWTR) | 2026-05-01 – 2026-05-31 | Archived | No | 2026Q3 |
| Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter) | 2026-05-01 – 2026-05-31 | Archived | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2026-05-01 – 2026-05-31 | Archived | No | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2026-04-26 – — | Unaddressed | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2026-04-01 – 2026-04-30 | Archived | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2026-04-01 – 2026-04-30 | Archived | No | 2026Q3 |
| Interim and Long Term 1 Enhanced Surface Water Treatment Rule / Monitoring, Turbidity (Enhanced SWTR) | 2026-04-01 – 2026-04-30 | Archived | No | 2026Q3 |
| Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter) | 2026-04-01 – 2026-04-30 | Archived | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2026-03-01 – 2026-03-31 | Archived | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2026-03-01 – 2026-03-31 | Archived | No | 2026Q3 |
| Interim and Long Term 1 Enhanced Surface Water Treatment Rule / Monitoring, Turbidity (Enhanced SWTR) | 2026-03-01 – 2026-03-31 | Archived | No | 2026Q3 |
| Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter) | 2026-03-01 – 2026-03-31 | Archived | No | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2026-02-01 – 2026-02-28 | Archived | No | 2026Q3 |
| Interim and Long Term 1 Enhanced Surface Water Treatment Rule / Monitoring, Turbidity (Enhanced SWTR) | 2026-02-01 – 2026-02-28 | Archived | No | 2026Q3 |
| Surface Water Treatment Rule / Monitoring of Treatment (SWTR-Filter) | 2026-02-01 – 2026-02-28 | Archived | No | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Administrative contact (EPA filing)
Hetrick, Katrina: 907-281-2284
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.