Counties → Oregon

Washington County, Oregon

Water Systems

Population Served

597,244

Total Violations

7,314

PFAS Detected

of 10 tested

Water Systems

System Name	Population	Violations	PFAS
TUALATIN VALLEY WATER DISTRICT	224,600	17	Clean
HILLSBORO, CITY OF	92,632	9	Clean
BEAVERTON, CITY OF	88,045	21	Clean
TIGARD, CITY OF	62,500	14	Clean
TUALATIN, CITY OF	28,106	11	Clean
FOREST GROVE, CITY OF	26,838	45	Clean
SHERWOOD, CITY OF	19,885	40	Detected
CORNELIUS, CITY OF	14,490	42	Clean
WEST SLOPE WATER DISTRICT	11,000	32	Clean
RALEIGH WATER DISTRICT	4,500	29	Clean
NORTH PLAINS WATER DEPARTMENT	3,663	38	—
LA WATER CO-OP	2,500	39	—
BANKS WATER DEPARTMENT	2,070	230	—
HILLSBORO-CHERRY GROVE	1,628	57	—
OPRD LL STUB STEWART ST PK	1,206	14	—
ALS GARDEN CENTERS & GREENHOUSES	874	0	—
WASHINGTON CO PKS - HAGG LAKE	800	174	—
GASTON, CITY OF	625	46	—
GALES CREEK SHELL & GROCERY	600	14	—
MERIWETHER NATL GOLF COURSE	516	59	—
NORTH PLAINS ARCO	500	52	—
FIR GROVE HOMEOWNERS ASSN	450	36	—
VISITATION CHURCH AND SCHOOL	450	64	—
VADIS CAMP	425	19	—
STAR SATELLITE IMPROV DIST	400	28	—
GALES CREEK CAMP	360	47	—
WEST UNION ELEM SD 1	350	123	—
FARMINGTON VIEW ELEM SD 1J	340	28	—
CAMP MOUNTAINDALE	300	22	—
TUALATIN VALLEY REGIONAL TRNG CTR	300	16	—
RESERVE VINEYARDS & GOLF CLUB	300	226	—
USFWS TUALATIN RIVER NATL WLR	275	18	—
WESTVIEW MOBILE ESTATES	250	342	—
SOUTH HILLS WATER SYSTEM	250	17	—
GRONER ELEMENTARY SD 1J	250	150	—
HELVETIA TAVERN INC	250	19	—
MANNING DAIRY QUEEN	250	11	—
SNACK JACKS WATER SYSTEM	250	62	—
LAURELWOOD WATER USERS	200	213	—
MCMENAMINS ROCK CREEK TAVERN	200	28	—
ST FRANCIS OF ASSISI SCHOOL	200	199	—
SUN OUTDOORS PORTLAND SOUTH	190	90	—
TIMBER WATER ASSOCIATION	180	454	—
FOREST HILLS GOLF COURSE	180	16	—
PARRETT MOUNTAIN VIEW ESTATES	155	199	—
TIMBERLINE BAPTIST CHURCH	150	661	—
MIDWAY FIREHOUSE PIZZA	137	49	—
LAUREL COMMUNITY CHURCH	110	32	—
COLD SPRINGS WATER CO	100	355	—
GLENWOODS FOOD MART	100	221	—