Tapcensus

Water quality in Coulee City, Washington

Coulee City is in Grant County. 267 active public water systems serve the county; 87 had an EPA violation in the past three years.

Most likely your provider

Coulee City Town of WA5315300 · Community water system · Ground water
Serves 944 people Rules violated, past 3 years 1 Last sanitary survey May 13, 2025 Distance 0.1 mi

Your location is within the outer bounds of this system's EPA service area.

Other community water systems in Grant County

80 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Fordair Water Co-Op INC
43 3 1.4 mi
Hartline Water System
249 0 10.0 mi
Wilson Creek Water Dept Town of
386 1 15.4 mi
Soap Lake Water Dept
2,399 0 17.8 mi
Westmont Acres
206 1 18.9 mi
Lakeview Park Water Assn
1,259 1 19.1 mi
Marlin Hutterian
134 3 19.9 mi
Wagon Wheel MHP
86 0 20.6 mi
Desert Villa
100 0 21.0 mi
Ephrata Water Department
8,718 2 23.7 mi
North Shore Acres
101 0 24.8 mi
Electric City City of
1,812 0 24.9 mi
Grand Coulee Water Dept City of
1,428 0 26.2 mi
Wagon Wheel Estate
25 0 26.7 mi
Painted Hills Water Association
70 3 26.9 mi
Stratford Road Estates
312 2 30.4 mi
Orchard Homes Water System
31 1 30.6 mi
Ridgeview Estates Water Association
240 2 30.9 mi
MT View Water System
44 0 31.0 mi
Viking Road Water System
88 0 31.1 mi
Parker Spring Acres Water Assoc
255 1 31.5 mi
Sunset Acres Water Assn
61 1 31.5 mi
Grove Terrace MHP Two LLC
220 1 31.6 mi
Skyline Water System INC
293 0 31.7 mi
Lakeview Mobile Terrace
43 0 31.8 mi
All 81 community water systems in Grant County
Non-community systems in Grant County (186: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Big Wallys
67 1 0
Coulee City RV Park
15 1 0
Odessa Trading Company
43 0 0
Camp Delaney
65 0 0
Sun Lakes State Park
4,858 0 0
Sun Village Resort LLC
192 1 0
Coulee Lodge Resort
64 2 0
Blue Lake Rest Area
201 1 0
Blue Lake Summer Homes Water Assn
34 0 0
Moores Blue Lake Water System
56 0 0
Rimrock Cove
128 0 0
Blue Lake Resort
151 1 0
Smokiam RV Resort
343 2 0
Steamboat Rock State Park #1
2,907 0 0
Steamboat Rock Northrup Point
164 0 0
Roxbury Farmworker Housing
48 0 0
Borton Ephrata Camp
99 1 0
Banks Lake Golf Course
67 1 0
Colt Water System
41 1 0
Ephrata Raceway Park
700 0 0
White Alpha II Fwh
68 0 0
Willamette Egg Farms Moses Lake
44 1 0
Reconciliation Church
31 1 0
Sunny Springs Resort & Campground
9 1 0
Moses Lake Irrig & Rehab District
151 1 0
Winchester Orchard Farmworker
76 0 0
Qcy Farmworker Housing
100 0 0
Sagedale Apartments
21 3 0
Paradise Orchards Quincy
96 0 0
Aviator Black Sands
40 0 0
Moses Pointe Water System #1
40 0 0
Nffc Quincy
110 1 0
Duane Jenks
35 0 0
Martin Road Housing
99 0 0
Willow Drive Nursery Warehouse Off.
65 2 0
JR Simplot CO
365 1 0
Columbia Bean
45 0 0
Weber Farms Orchard Housing #2
98 1 0
Weber Orchard
27 0 0
Agrex Water System
25 0 0
Monument Hills Fwh
96 0 0
Basic American Foods
100 0 0
Ingredion Incorporated
35 1 0
Willows Trailer Village
83 0 0
Sun Basin Campground
33 0 0
Double M Mustang
64 0 0
Willow Drive Nursery RS Storage
80 0 0
Ballard Resort
33 1 0
Larson Park
72 0 0
Quincy Housing Fwh
96 0 0
All non-community systems
About this data

Water systems are matched to Grant County, nearest to Coulee City first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.

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.