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ZIP Code 48864 Water Quality
Connecticut · 26,303 people served · 5 water systems
B
GoodZIP code 48864 is in Connecticut and is a small city from a drinking-water-service perspective, with 26,303 people served by 5 EPA-registered public water systems. It corresponds to OKEMOS.
Within ZIP code 48864, the EPA Safe Drinking Water Information System (SDWIS) records 1 health-based violation during the past five years across 5 water systems serving this postal area. The grade of B 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 48864
Water Systems Serving 48864
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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