Okanogan County, Washington Water Systems

Okanogan County, Washington

65 community water systems on record — 43 active, 22 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Washington’s official records. Always confirm current status with Washington before making decisions based on this information.

Community water systems in Okanogan County, Washington

System name	City	Population served	Status
ALTA LAKE GOLF COURSE PLAT	East Wentachee	161	Active
APPLEWAY TRAILER COURT	Tonasket	54	Active
ASTON ESTATES	Tonasket	141	Active
BREWSTER CITY OF	Brewster	3,235	Active
BREWSTER FLAT DOMESTIC WATER ASSN	Brewster	542	Active
COLEMAN BUTTE WATER ASSN	Tonasket	250	Active
COLVILLE - ALBERT ORR WATER SYSTEM	NESPELEM	200	Inactive
COLVILLE INDIAN AGENCY	NESPELEM	225	Inactive
COLVILLE INDIAN AGENCY	NESPELEM	210	Inactive
COLVILLE MALOTT COMMUNITY WT SYS	NESPELEM	171	Inactive
COULEE DAM	OKANOGAN	25	Inactive
COULEE DAM WATER DEPT	Coulee Dam	1,454	Active
CRUMBACHER ESTATES WATER SYSTEM	Tonasket	111	Active
DESSAUTEL COMMUNITY	NESPELEM	60	Inactive
DON'S MOBILE HOME COURT	OKANOGAN	25	Inactive
DUCK LAKE WATER ASSOCIATION	Okanogan	635	Active
DUNCKEL TRAILER PARK	OMAK	21	Inactive
EAST OMAK	NESPELEM	25	Inactive
EASTLAKE WATER ASSOCIATION	Oroville	65	Inactive
EDELWEISS MAINTENANCE COMMISSION	Winthrop	95	Active
ELMER CITY	OKANOGAN	25	Inactive
ELMER CITY WATER SYSTEM	Elmer City	368	Active
EMANUEL HEIGHTS WATER SYSTEM	Brewster	60	Active
FLOCHS MOBILE HOME PARK	OKANOGAN	25	Inactive
Fowlers MHP, LLC	Spokane	40	Inactive
HI-COLOR ORCHARD FARMWORKER HOUSING	Wenatchee	53	Active
HOMESTEAD MOBILE HOME PARK	Tonasket	105	Active
JAW FARMS INC	Malott	636	Active
JOHNSON CREEK WATER USERS ASSN	Tonasket	48	Active
LONE PINE WATER ASSN	COULEE DAM	48	Inactive
LOOMIS WATER USERS ASSN INC	Tonasket	225	Active
LOST RIVER AIRPORT ASSOCIATION	Tonasket	72	Active
M J TRAILER RANCH	OKANOGAN	100	Active
MANY LAKES MOBILE HOME PARK	TONASKET	37	Active
METHOW WATER SYSTEM INC	METHOW	45	Active
Monse-Riggan Camp	Brewster	1,165	Active
NESPELEM COMMUNITY	NESPELEM	25	Inactive
NESPELEM WATER DEPT	Nespelem	510	Active
NICKELL ORCHARD	PATEROS	51	Inactive
NORTH END WATER USERS	OROVILLE	600	Inactive
OKANOGAN WATER DEPARTMENT CITY OF	OKANOGAN	2,921	Active
OLD ORCHARD ESTATES WATER SYSTEM	Tonasket	86	Active
OMAK CITY OF	Omak	4,940	Active
OMAK HUD TRAILER COURT	NESPELEM	400	Inactive
OROVILLE CITY OF	Oroville	3,256	Active
P AND G ORCHARDS CAMP 2	Brewster	489	Active
PATEROS WATER DEPARTMENT	Pateros	1,149	Active
PINE FOREST WATER SYSTEM	Tonasket	90	Active
PINECREST SUBDIVISON OWNERS	Tonasket	63	Active
PROGRESSIVE FLAT WATER ASSN	Tonasket	335	Active
RIVER ROAD MOBILE HOME PARK	Tonasket	150	Active
RIVERSIDE TOWN OF	Riverside	429	Active
RIVERVIEW WATER USERS ASSN	COULEE DAM	65	Inactive
SANDFLAT WATER ASSOCIATION	Tonasket	260	Active
SEATONS GROVE COMMUNITY ULID 2	Okanogan	90	Inactive
SUNCREST PLAT WATER SYSTEM	Tonasket	260	Active
T BAR M TRAILER RANCH	OKANOGAN	60	Inactive
TONASKET WATER SYSTEM	Tonasket	2,392	Active
TWIN PINES MOBILE HOME PARK	Tonasket	25	Active
TWISP TOWN OF	Twisp	1,055	Active
Valley View Estates Water System	Tonasket	28	Active
VISTA VUE WATER USERS ASSN	Tonasket	60	Active
WILSON RANCH PD WATER SYSTEM	MAZAMA	80	Inactive
WINTHROP TOWN OF	Winthrop	1,350	Active
WOLF CREEK PROPERTY OWNERS ASSN	Tonasket	71	Active