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Washington · 10,679 people served · 10 water systems
ZIP code 98901 is in Washington and is a small city from a drinking-water-service perspective, with 10,679 people served by 10 EPA-registered public water systems. It corresponds to Yakima.
Within ZIP code 98901, the EPA Safe Drinking Water Information System (SDWIS) records 1 health-based violation during the past five years across 10 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
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Sundquist TWH-Terrace Heights
PWSID: WA53AD423
192 served
SUNDQUIST SUNNYSLOPE DOMESTIC
PWSID: WA53AD011
196 served
YAK CO - TERRACE HEIGHTS
PWSID: WA5306029
8,410 served
YAK CO - CREWPORT
PWSID: WA5316242
192 served
YAK CO - GALA ESTATES WATER SYSTEM
PWSID: WA5323280
119 served
YAK CO - BUENA WATER SYSTEM
PWSID: WA5334301
952 served
POMONA ARTESIAN IRRIGATION COMPANY
PWSID: WA5365815
150 served
RIVER BEND MOBILE PARK LLC
PWSID: WA5372809
75 served
SKYLINE MOBILE HOME PARK
PWSID: WA5380205
340 served
GREEN VALLEY ESTATES WATER ASSN
PWSID: WA5329597
53 served
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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