Tapcensus

Water quality for ZIP code 98837

ZIP 98837 covers Moses Lake, Moses Lake North, Cascade Valley, and Wheeler in Grant County, Washington, one of 14 ZIP codes in the county. 267 active public water systems serve the county; 87 had an EPA violation in the past three years.

Most likely your provider

Hillcrest Water Users Assn WA5333200 · Community water system · Ground water
Serves 300 people Rules violated, past 3 years 1 Last sanitary survey Jul 28, 2022 Distance 0.2 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
Basin Water Sources INC
1,158 0 0.1 mi
Skyline Water System INC
293 0 0.4 mi
Moses Lake City of
32,428 0 0.6 mi
Ponderosa Mobile Home Park
105 0 0.6 mi
Lakeview Mobile Terrace
43 0 0.7 mi
Cascade Village MHP
164 0 0.8 mi
Cascade Valley Water District
379 0 1.2 mi
Grove Terrace MHP Two LLC
220 1 1.3 mi
Quail Run Mobile Home Park
165 1 1.3 mi
MT View Water System
44 0 1.7 mi
Viking Road Water System
88 0 2.0 mi
Stratford Road Estates
312 2 2.2 mi
Diamond Point Water System
110 0 2.4 mi
Westshore Water Company
153 2 2.5 mi
Skyline Acres INC
151 1 3.1 mi
Parker Spring Acres Water Assoc
255 1 3.1 mi
Ridgeview Estates Water Association
240 2 3.3 mi
Country Club Estates Water System
186 0 3.5 mi
Admiral Water Users Assn
74 1 3.6 mi
Silver Sands Condo Water
37 0 3.6 mi
Orchard Homes Water System
31 1 3.7 mi
Sunset Acres Water Assn
61 1 4.2 mi
Pelican Point by Cascadia LLC
1,357 1 5.0 mi
Legacy Resort
46 2 5.2 mi
Cougar Campers
44 0 6.2 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
Duane Jenks
35 0 0
Moses Pointe Water System #1
40 0 0
Sagedale Apartments
21 3 0
Moses Lake Irrig & Rehab District
151 1 0
Willamette Egg Farms Moses Lake
44 1 0
Reconciliation Church
31 1 0
JR Simplot CO
365 1 0
Basic American Foods
100 0 0
Columbia Bean
45 0 0
Willows Trailer Village
83 0 0
Ingredion Incorporated
35 1 0
Sandy Point Mobile Home Park
28 0 0
Aviator Black Sands
40 0 0
Willow Drive Nursery Warehouse Off.
65 2 0
Potholes State Park
1,456 0 0
Osullivan Sportsmens Resort
104 1 0
Mardon Resort
153 0 0
New Mardon Resort
65 0 0
Frenchman Hills Orchard
35 1 0
Willow Drive Nursery RS Storage
80 0 0
Ballard Resort
33 1 0
Warden Lake Resort
24 0 0
Frenchman Hills Vineyard
56 0 0
Agrex Water System
25 0 0
Sun Basin Campground
33 0 0
Buckeye Lane Fwh
25 0 0
Zirkle-Husky Ranch #2
96 0 0
Ephrata Raceway Park
700 0 0
Colt Water System
41 1 0
Jamie Baird Water System
31 0 0
Sunny Springs Resort & Campground
9 1 0
Dodson Road RV Park
24 0 0
Deboer H2a Housing
96 1 0
Early Bird Orchard #3 Twh WS
48 0 0
White Alpha II Fwh
68 0 0
Borton Two Bluffs Camp
84 0 0
Royal Flush Farmworker Housing
55 0 0
Lawrence Orchards Farmworker
96 0 0
R & P Rentals
48 0 0
Sage Hills Golf Club & RV Resort
115 2 0
Sand Slope Acres
96 0 0
Sunray Housing
85 0 0
Royal Watermaster Qcbid
37 0 0
Borton Ephrata Camp
99 1 0
Roxbury Farmworker Housing
48 0 0
Randy Allred Employee Housing
98 0 0
Raven Farmworker Housing
100 0 0
Frenchman Hills Dodson
99 1 0
Uncle Dans Farmworker Housing
100 0 0
Kds Orchards Farmworker Housing
64 1 0
All non-community systems
About this data

Water systems are matched to Grant County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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. Retrieved from ECHO on Oct 11, 2026.