SOUTH TONGASS WATER UTILITY
PWSID: AK2121510 · Ketchikan, AK · Serves 975 people
SOUTH TONGASS WATER UTILITY has 14 health-based violations out of 14 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
SOUTH TONGASS WATER UTILITY (PWSID AK2121510) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 975 people in Ketchikan, AK, and is subject to primacy enforcement by the Alaska drinking-water program.
The system's federal compliance record contains 14 total violations, with 14 classified as health-based (MCL exceedances or treatment-technique failures). 3 distinct contaminants have been cited, including Haloacetic Acids (HAA5), Arsenic, Turbidity. Recorded violations span 2015–2025.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Alaska state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- AK2121510
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Ketchikan, AK
- Population Served
- 975
- Health Violations
- Yes (14)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Haloacetic Acids (HAA5) | 8 | 8 |
| Arsenic | 4 | 4 |
| Turbidity | 2 | 2 |
Violation History (14)
| Contaminant | Health | Date |
|---|---|---|
| Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Arsenic | Yes | Jan 1, 2018 |
| Arsenic | Yes | Jan 1, 2018 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2017 |
| Arsenic | Yes | Jul 1, 2017 |
| Arsenic | Yes | Jul 1, 2017 |
| Haloacetic Acids (HAA5) | Yes | Jul 1, 2016 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2016 |
| Turbidity | Yes | Mar 1, 2015 |
| Turbidity | Yes | Mar 1, 2015 |
Frequently Asked Questions
Is SOUTH TONGASS WATER UTILITY water safe to drink?
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.