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Washington · 7,047 people served · 35 water systems
ZIP code 98855 is in Washington and is a small town from a drinking-water-service perspective, with 7,047 people served by 35 EPA-registered public water systems. It overlaps with 2 communities including Tonasket, TONASKET.
Within ZIP code 98855, the EPA Safe Drinking Water Information System (SDWIS) records 12 health-based violations during the past five years across 35 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
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TONASKET WATER SYSTEM
PWSID: WA5388700
2,392 served
COLUMBIA SPRINGS ESTATES
PWSID: WA5304298
54 served
AFC RANCH 2
PWSID: WA5300863
125 served
HOMESTEAD MOBILE HOME PARK
PWSID: WA5301576
105 served
OLD ORCHARD ESTATES WATER SYSTEM
PWSID: WA5307748
86 served
AFC RANCH 1
PWSID: WA5303427
217 served
CRUMBACHER ESTATES WATER SYSTEM
PWSID: WA5313916
111 served
COLEMAN BUTTE WATER ASSN
PWSID: WA5313940
250 served
CASCADE FOOTHILLS
PWSID: WA5307285
61 served
PINE FOREST WATER SYSTEM
PWSID: WA5367393
90 served
Crane Ranch
PWSID: WA5315818
329 served
ELM TREE WATER & SEWER ASSN
PWSID: WA5323128
38 served
PINECREST SUBDIVISON OWNERS
PWSID: WA5313909
63 served
HANSON HARBOR HOMEOWNERS ASSN
PWSID: WA5319928
220 served
RIVER ROAD MOBILE HOME PARK
PWSID: WA5317631
150 served
SANDFLAT WATER ASSOCIATION
PWSID: WA5309064
260 served
ASTON ESTATES
PWSID: WA5309066
141 served
MANY LAKES MOBILE HOME PARK
PWSID: WA5304670
37 served
VISTA VUE WATER USERS ASSN
PWSID: WA5320226
60 served
MARTIN CREEK COMMUNITY ASSN
PWSID: WA5351877
108 served
LOOMIS WATER USERS ASSN INC
PWSID: WA5348200
225 served
INCHELIUM WATER DISTRICT
PWSID: WA5335550
540 served
LOST RIVER AIRPORT ASSOCIATION
PWSID: WA5348348
72 served
RIVERWOOD WATER SYSTEM
PWSID: WA5373032
43 served
CORRAL SPRINGS WATER SYSTEM
PWSID: WA5351714
336 served
PROGRESSIVE FLAT WATER ASSN
PWSID: WA5369650
335 served
SUNCREST PLAT WATER SYSTEM
PWSID: WA5385207
260 served
WITHROW WATER WORKS
PWSID: WA5398000
60 served
WOLF CREEK PROPERTY OWNERS ASSN
PWSID: WA5311476
71 served
TWIN PINES MOBILE HOME PARK
PWSID: WA5331790
25 served
Valley View Estates Water System
PWSID: WA5306321
28 served
Robison Tract / Teeny
PWSID: WA5367605
46 served
APPLEWAY TRAILER COURT
PWSID: WA5300603
54 served
AZWELL ORCHARDS
PWSID: WA5303523
7 served
JOHNSON CREEK WATER USERS ASSN
PWSID: WA5339411
48 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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