Water Quality in 99576 — Dillingham, AK

Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026

Your Water System

ZIP code 99576 in Dillingham, Alaska is served by DILLINGHAM WATER SYSTEM (EPA ID: AK2260197). This system provides water to approximately 2,419 people from groundwater sources.

There are 4 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

Contaminants Detected

The following contaminants have been flagged in EPA records for water systems serving this ZIP code:

Water Systems Serving This Area

What You Can Do

1. Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
2. Consider a home water test — Independent testing can reveal issues in your specific plumbing
3. Install a certified water filter — NSF-certified filters can address specific contaminants
4. Contact your water provider — Ask about current treatment and any ongoing remediation

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

• 99569 (Clarks Point) — 15 mi — 30 violations
• 99505 (Jber) — 57 mi
• 99579 (Egegik) — 72 mi — 9 violations
• 99565 (Chignik Lagoon) — 86 mi
• 99589 (Goodnews Bay) — 109 mi — 238 violations

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for DILLINGHAM WATER SYSTEM (AK2260197) on EPA.gov.

Frequently Asked Questions

Is the tap water in 99576 safe to drink?

Dillingham’s water system has recorded 1 health-based violation 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 99576’s water come from?

The primary water source for this area is groundwater. DILLINGHAM WATER SYSTEM serves approximately 2,419 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 99576 have lead in the water?

No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 99576. If you are concerned about lead, contact your water utility or have your tap water independently tested.

What is the radon risk in 99576?

Radon zone data is not available for ZIP code 99576. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.