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ZIP Code 99687 Water Quality

Alaska · 2,050 people served · 18 water systems

F
Failing

ZIP code 99687 is in Alaska and is a small town from a drinking-water-service perspective, with 2,050 people served by 18 EPA-registered public water systems. It corresponds to WASILLA.

Within ZIP code 99687, the EPA Safe Drinking Water Information System (SDWIS) records 13 health-based violations during the past five years across 18 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 99687

Water Systems Serving 99687

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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