SOUTH TONGASS WATER UTILITY
PWSID: AK2121510 · Ketchikan, AK · Serves 975 people
According to EPA Safe Drinking Water Information System (SDWIS), SOUTH TONGASS WATER UTILITY (PWSID AK2121510) in Ketchikan, AK is listed as a CWS water system covering about 975 people. The same extract lists 17 health-based violation records spanning 2015-2025. Those 17 health-based rows for SOUTH TONGASS WATER UTILITY cover contaminants such as Total Haloacetic Acids (HAA5), Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
SOUTH TONGASS WATER UTILITY has 17 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Total Haloacetic Acids (HAA5), Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule. Recorded violations span 2015–2025. Day-to-day primacy enforcement for this system runs through the Alaska drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current 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 (17)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 11 | 11 |
| Surface Water Treatment Rule | 4 | 4 |
| Interim Enhanced Surface Water Treatment Rule | 2 | 2 |
Violation History (17)
| Contaminant | Health | Date |
|---|---|---|
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Surface Water Treatment Rule | Yes | Jan 1, 2018 |
| Surface Water Treatment Rule | Yes | Jan 1, 2018 |
| Total Haloacetic Acids (HAA5) | Yes | Oct 1, 2017 |
| Surface Water Treatment Rule | Yes | Jul 1, 2017 |
| Surface Water Treatment Rule | Yes | Jul 1, 2017 |
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2016 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2016 |
| Interim Enhanced Surface Water Treatment Rule | Yes | Mar 1, 2015 |
| Interim Enhanced Surface Water Treatment Rule | Yes | Mar 1, 2015 |
Frequently Asked Questions
What does EPA SDWIS list for SOUTH TONGASS WATER UTILITY?
How many people does SOUTH TONGASS WATER UTILITY serve?
What violations does SOUTH TONGASS WATER UTILITY have?
What contaminants have been found in SOUTH TONGASS WATER UTILITY water?
Compare beyond Alaska
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest SOUTH TONGASS WATER UTILITY on cumulative violation count (17) and EPA-reported population served (975). Violation-count peers include Colorado River Regional Water System, DERMOTT WATERWORKS, SUBIACO CITY WATERWORKS. Population peers include FAIRVIEW WATER SYSTEM, CONECUH, MOUNTAIN GLEN WATER SERVIC LINDEN TRAILS, NYELAND ACRES MUTUAL WATER CO.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
SOUTH TONGASS WATER UTILITY (AK2121510) is drawn from EPA SDWIS. Nearby county systems in this extract include KETCHIKAN PUBLIC UTILITIES; SAXMAN. Health-based rows (17 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.