Tapcensus

Washington

Walla Walla County drinking water quality

70 active public water systems serve 77,609 people in Walla Walla County. 36 are compliant, 34 had at least one EPA violation in the past three years, 3 are designated serious violators, and 0 carry a health flag.

Active systems 70 33 community systems
People served 78K by public water systems
Systems with violations 34 49% of active systems, past 3 years
Serious violators 3 0 systems carry a health flag

Needs attention

Westbourne Acres WA5395047 · Community water system · Serves 94 4 rules violated in the past three years. Unresolved: Fluoride and Nitrate.
Pro Pac Sales LLC WA5359317 · Transient non-community system · Serves 60 1 rule violated in the past three years. Unresolved: Nitrate.
Grandview Farms Pasco Dodd Rd WA5309701 · Non-Transient non-community system · Serves 32 1 rule violated in the past three years. Unresolved: Nitrate.

Community water systems

33 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Walla Walla Water Division
 42,959 1 0
College Place Water Dept
 8,147 0 0
Snake River Housing Water System
 3,036 0 0
Waitsburg City of
 1,817 1 0
Consolidated Irrigation Dist 14
 1,555 0 0
Walla Walla University
 1,273 1 0
Valle Lindo Homes
 787 0 0
Veterans Affair Med Ctr Dept of
 785 1 0
Great Basin Water Burbank
 656 1 0
Green Tank Irr District 11
 553 0 0
Burbank Irrigation District 4
 527 0 0
Prescott Town of
 522 1 0
Columbia View Water System
 500 1 0
Arlenes Addition
 480 0 0
Artesian Water District 8
 302 4 0
Hydro Irrigation District NO 9
 260 0 0
Blalock Orchard Dist 10
 250 1 0
Dixie Water Association
 240 2 0
Wallula Water District
 200 3 0
Blalock Orchards Dist 12
 193 1 0
Sun Harbor Water District #3
 187 2 0
Burbank Heights
 177 4 0
Sydney Heights Water Assn
 130 2 0
Westbourne Acres
 94 4 0
Summers Circle Water LLC
 82 0 0
Firstfruits Farms
 68 1 0
Cottonwood Glen Water Assn
 65 0 0
Kooskooskie Cabin Owners Inc.
 45 1 0
Prospect Heights Comm Water Assn
 40 3 0
Jubilee
 30 0 0
Kzh Farms Higgy
 29 0 0
Mini-Pearl Water System
 28 0 0
Reser Creek Water System
 26 0 0
Non-community systems (37: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Hood Park
 2,283 0 0
Burbank Business Park
 1,983 0 0
Wallula Dodd Water System
 1,757 0 0
Charbonneau Park
 1,287 0 0
Packaging Corporation of America
 700 1 0
Fishhook Park
 645 1 0
Touchet School
 303 1 0
Walla Walla Airport
 280 0 0
Rooks Park Water
 201 1 0
Ice Harbor Dam
 197 0 0
Sun Harbor SW
 188 1 0
Taggares Fruit Co
 152 2 0
Klicker Water System 1
 134 0 0
Whitman Mission National Historic
 134 0 0
Columbia12 Touchet Chevron
 104 1 0
Borton Burbank Heights Jubilee #1
 96 0 0
Flat Top Ranch-Fishhook H2a Housing
 96 0 0
Five Dollar Ranch and Bledsoe
 87 0 0
K2h Farms-Shop & Office
 80 0 0
Wine Valley Water System
 77 1 0
Walla Walla River Packing & Storage
 75 0 0
Precept Wine
 63 0 0
Pro Pac Sales LLC
 60 1 0
Bct INC
 58 0 0
Burbank Lds Church
 56 1 0
Broetje Wallula Ranch
 52 0 0
Cherry Harvest Labor Camp
 50 1 0
Mill Creek Project Office
 50 0 0
Monson Stardust H2a Housing
 50 0 0
Simplot Feeders Ltd
 40 2 0
Burbank Library Water System
 38 0 0
Cameo Heights
 35 0 0
Fpl Energy Vansycle
 34 2 0
Grandview Farms Pasco Dodd Rd
 32 1 0
Three Rivers Winery
 32 0 0
St. Basils Academy
 30 0 0
Pierces Green Valley RV Park
 27 1 0
Inactive systems (70, 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 Washington 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.