Tapcensus

Oregon

Yamhill County drinking water quality

93 active public water systems serve 90,887 people in Yamhill County. 24 are compliant, 69 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.

Active systems 93 38 community systems
People served 91K by public water systems
Systems with violations 69 74% of active systems, past 3 years
Serious violators 0 0 systems carry a health flag

Community water systems

38 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
McMinnville Water & Light
 34,515 1 0
Newberg, City of
 25,138 0 0
Sheridan, City of
 6,494 7 0
Lafayette, City of
 4,423 3 0
Dundee, City of
 2,960 2 0
Dayton, City of
 2,535 2 1
Carlton, City of
 2,270 5 1
Willamina, City of
 2,239 1 0
Amity, City of
 1,810 6 0
Yamhill, City of
 1,199 5 1
Delphian School
 350 1 0
Cove Orchard Water Association
 300 2 1
Northwest Newberg Water Assn
 250 1 0
Cswa Chehalem Springs
 130 5 0
Sunny Acres Water District
 130 1 1
Pleasant View Water CO
 120 4 1
Hidden Meadows Water Assn INC
 110 5 1
Hopewell Water Company
 100 4 2
Valley View Water Co-Op
 99 2 2
Rock of Ages Rest Home
 97 1 0
East Yamhill Rural WD
 90 1 0
Oxberg Water System #1
 90 3 0
Chehalem Valley Water Assn
 75 3 0
Chehalem Mtn Sun Ridge Water CO
 70 3 0
Fox Ridge Water CO
 60 1 1
West Yamhill Water Company
 56 2 1
Cswa Oliver Spring
 40 4 0
South Yamhill Water District
 40 3 0
Red Hills Estates
 39 0 0
Hiland WC Hillview
 38 1 0
Springbrook Water Association
 38 4 0
Hiland WC Fryer Hill
 32 3 1
Lunnville Water District
 32 2 0
Chehalem Terrace Water Company
 30 2 0
Sunnycrest Meadows WS
 29 2 0
Hiland WC Wyland
 25 1 0
Hiland WC Stables
 20 2 0
Hiland WC Wilderness
 20 3 0
Non-community systems (55: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Golden Enterprises
 700 1 0
Camp Yamhill
 250 0 0
Ewing Young Elem SD 29j
 245 0 0
Domaine Willamette Winery
 200 4 0
Monrovia North
 175 0 0
Monrovia South
 175 1 0
Resonance Wines Carlton
 163 0 0
Bailey Nursery III
 160 1 0
Adelsheim Vineyards
 140 2 0
Domaine Serene
 124 1 0
Sokol Blosser Vineyards
 110 0 0
Chehalem Valley Baptist Church
 100 0 0
Durant Vineyard Tasting Room
 100 0 0
Grange Hill Winery
 100 1 0
The Black Dog Vineyard
 100 0 0
The Preserve
 100 1 0
Stoller Family Estate
 85 1 0
Hopewell Community Church
 80 0 0
Soter Vineyards
 80 2 0
Boise Cascade-Willamina Veneer
 75 1 0
Camp Tilikum
 75 1 0
NW Wine Company
 75 1 0
Robinson Nursery Amity WS
 70 2 0
Laurel Ridge Winery
 68 1 0
Roco Winery & Tasting Room
 60 0 0
Solena Estate
 60 0 0
Oprd Maud Williamson State PK
 55 2 0
Willamette Hazelnut INC
 55 4 0
D Stake Mill
 54 4 1
Ambar Estate
 50 1 0
Archer Vineyards and Tasting Room
 50 0 0
Brooks Wine
 50 0 0
Chehalem Valley Winery Tasting Room
 50 2 0
Decouverte Vineyard
 50 0 0
Grand Island Deli
 50 2 0
Bailey Nursery II
 45 1 0
Jachter Family Wines
 45 1 0
5 Rock Ranch
 40 1 0
Gray & Company
 40 0 0
Fairsing Vineyard
 37 1 0
Gran Moraine Winery
 36 0 0
Bunns Village Industrial Park
 35 0 0
Monrovia Main Office
 35 1 0
St. Cousair Inc.
 35 2 2
Hazelfern Cellars
 30 2 0
Knudsen Vineyards
 30 0 0
Maysara Winery
 30 2 1
Moffett Vineyards
 30 0 0
Penner Ash Wine Cellars
 30 0 0
Yamhill CO Pks-Ed Grenfell PK
 30 0 0
Trappist Abbey
 29 2 0
Yamhill Valley Vineyards
 28 1 1
Balsall Creek Winery
 25 1 0
J Wrigley Vineyards
 25 2 0
Perlee
 25 0 0
Inactive systems (75, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Oregon records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.