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ZIP Code 99523 Water Quality

Alaska · 10,652 people served · 23 water systems

F
Failing

ZIP code 99523 is in Alaska and is a small city from a drinking-water-service perspective, with 10,652 people served by 23 EPA-registered public water systems. It corresponds to ANCHORAGE.

Within ZIP code 99523, the EPA Safe Drinking Water Information System (SDWIS) records 33 health-based violations during the past five years across 23 water systems serving this postal area. The grade of F reflects the aggregate compliance pattern, not the current daily water quality.

Last updated: 2026-05-18 · Source: EPA SDWIS

ZIP Code Location

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Cities in ZIP 99523

Water Systems Serving 99523

About ZIP-code water data

Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.

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