Water Quality in 99901 — Ketchikan, AK
EPA data for KETCHIKAN PUBLIC UTILITIES
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 99901 in Ketchikan, Alaska is served by KETCHIKAN PUBLIC UTILITIES (EPA ID: AK2120232). This system provides water to approximately 8,937 people from surface water sources.
There are 8 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| September 1, 2025 | E. coli | Monitoring | Unresolved |
| July 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Health-based | Unresolved |
| August 1, 2024 | E. coli | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| E. coli | Microbiological | 25 | Yes |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 5 | Yes |
| Lead | Inorganic | 2 | No |
| PFOA | PFAS | 2 | No |
| PFNA | PFAS | 2 | No |
| Monochloroacetic Acid | Disinfection Byproducts | 2 | No |
| Dichloroacetic Acid | Disinfection Byproducts | 2 | No |
| Bromodichloromethane | Disinfection Byproducts | 2 | No |
| Dibromochloromethane | Disinfection Byproducts | 2 | No |
| Bromoform | Disinfection Byproducts | 2 | No |
| Chlorodibromomethane | Disinfection Byproducts | 2 | No |
| Trichloroacetic Acid | Disinfection Byproducts | 2 | No |
| Monobromoacetic Acid | Disinfection Byproducts | 2 | No |
| Dibromoacetic Acid | Disinfection Byproducts | 2 | No |
| Bromochloroacetic Acid | Disinfection Byproducts | 2 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| KETCHIKAN PUBLIC UTILITIES | AK2120232 | 8,937 | Surface water |
| SOUTH TONGASS WATER UTILITY | AK2121510 | 975 | Surface water |
| SAXMAN | AK2120127 | 450 | Surface water |
| VALLENAR VIEW MOBILE HOME PARK | AK2120012 | 225 | Surface water |
| KETCHIKAN WATER, TRUCK 1 | AK2121527 | 100 | Surface water |
What You Can Do
- Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
- Consider a home water test — Independent testing can reveal issues in your specific plumbing
- Install a certified water filter — NSF-certified filters can address specific contaminants
- Contact your water provider — Ask about current treatment and any ongoing remediation
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Alaska
- 99501 (Anchorage) — 263 violations
- 99505 (Jber)
- 99545 (Kongiganak) — 353 violations
- 99546 (Adak) — 94 violations
- 99547 (Atka) — 133 violations
- 99548 (Chignik Lake) — 97 violations
- 99550 (Port Lions) — 81 violations
- 99551 (Akiachak) — 78 violations
- 99552 (Akiak) — 15 violations
- 99553 (Akutan)
- 99554 (Alakanuk) — 423 violations
- 99556 (Anchor Point) — 9 violations
- 99558 (Anvik) — 167 violations
- 99559 (Bethel) — 125 violations
- 99561 (Chefornak) — 203 violations
- 99563 (Chevak) — 35 violations
- 99565 (Chignik Lagoon)
- 99567 (Chugiak) — 187 violations
- 99569 (Clarks Point) — 30 violations
- 99571 (Cold Bay) — 4 violations
Nearby Water Quality Reports
- 99801 (Juneau) — 233 mi — 1 violation
- 98230 (Blaine, WA) — 582 mi — 1 violation
- 98225 (Bellingham, WA) — 601 mi — 6 violations
- 98362 (Port Angeles, WA) — 613 mi — 15 violations
- 98277 (Oak Harbor, WA) — 621 mi — 82 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for KETCHIKAN PUBLIC UTILITIES (AK2120232) on EPA.gov.
Frequently Asked Questions
Is the tap water in 99901 safe to drink?
Ketchikan’s water system has recorded 7 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
Where does 99901’s water come from?
The primary water source for this area is surface water. KETCHIKAN PUBLIC UTILITIES serves approximately 8,937 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 99901 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 99901. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 99901?
Radon zone data is not available for ZIP code 99901. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.