Tapcensus

Water quality in Riverside, Washington

Riverside is in Okanogan County. 123 active public water systems serve the county; 46 had an EPA violation in the past three years.

Most likely your provider

Riverside Town of WA5372850 · Community water system · Ground water
Serves 429 people Rules violated, past 3 years 5 Unresolved 1 Last sanitary survey May 5, 2025 Distance 0.5 mi

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

View system details EPA facility report

Other community water systems in Okanogan County

42 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Pinecrest Subdivison Owners
 63 0 5.3 mi
Duck Lake Water Association
 635 0 5.9 mi
Crumbacher Estates Water System
 111 0 6.0 mi
Vista Vue Water Users Assn
 60 0 6.1 mi
Homestead Mobile Home Park
 105 0 6.5 mi
Omak City of
 4,940 0 6.9 mi
Suncrest Plat Water System
 260 0 7.0 mi
Aston Estates
 141 0 7.4 mi
Coleman Butte Water Assn
 250 0 8.5 mi
Progressive Flat Water Assn
 335 0 9.1 mi
Sandflat Water Association
 260 0 9.3 mi
Okanogan Water Department City of
 3,817 1 10.5 mi
Johnson Creek Water Users Assn
 48 0 11.2 mi
Old Orchard Estates Water System
 86 0 11.8 mi
River Road Mobile Home Park
 150 1 13.4 mi
Tonasket Water System
 2,398 0 13.7 mi
M J Trailer Ranch
 100 0 16.1 mi
Jaw Farms INC
 636 0 18.7 mi
Appleway Trailer Court
 54 0 20.1 mi
Many Lakes Mobile Home Park
 37 2 21.8 mi
Loomis Water Users Assn INC
 225 0 26.5 mi
Emanuel Heights Water System
 60 2 26.9 mi
Valley View Estates Water System
 28 0 27.7 mi
P and G Orchards Camp 2
 489 1 28.5 mi
Brewster Flat Domestic Water Assn
 542 0 28.8 mi
All 43 community water systems in Okanogan County
Non-community systems in Okanogan County (80: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Keystone Ranch
 66 0 0
Omak Omk City of
 31 0 0
Our Lady of Valley Catholic Church
 60 2 0
Okanogan County Fair Water System
 867 2 0
Conconully SP Boat Launch
 258 0 0
Conconully City Well
 299 0 0
Liars Cove
 73 1 0
Conconully SP Primitive Area
 129 0 0
Conconully Bible Camp
 71 1 0
Lazy Daze Water Association
 21 0 0
Jacks RV Park 1
 24 0 0
Sit N Bull Saloon
 76 1 0
Red Rock Saloon
 100 0 0
Shady Pines Resort
 62 0 0
Whitestone Pears
 62 2 0
Tonasket Free Methodist Church
 120 0 0
Okanogan Neighbors
 1,600 0 0
Emerald City Green Machine
 155 0 0
Roadway Stores INC
 27 0 0
Wagon Wheel Bar & Grill
 26 1 0
OK Ranch INC
 13 0 0
Loup Loup Ski Area
 350 1 0
Spectacle Lake Resort
 35 1 0
Gold Digger Orchards (north Co.) #2
 66 0 0
Sonora Point Resort
 2 0 0
Smith & Nelson
 36 0 0
Sun Cove Water System
 23 2 0
Palmer Lake Land Company
 49 0 0
P and G Orchards Camp 3
 152 0 0
Bonaparte Lake Campground-Well 4
 15 2 0
Buckingham Water System
 64 2 1
Bear Creek Golf Course
 68 1 0
Bonaparte Lake Resort
 104 2 0
Pearrygin Lake State Park Both CG
 2,103 1 0
JN Camp Buckhorn MT Orchards
 41 1 0
Ncsb
 71 1 0
Riverbend RV Park
 222 0 0
Silverline Resort
 26 1 0
Honeybear Growers
 161 0 0
Winthrop KOA
 77 2 0
Liberty Bell High School
 642 0 0
Oroville Golf Club
 64 2 0
Gamble Sands
 70 0 0
Lost Lake Campgound
 32 2 0
Arrowhead Ranch
 140 0 0
Rader Road HOA
 44 0 0
Hardin Housing Water System
 83 0 0
Oro Beach RV Resort
 17 1 0
Custom Orchard 1
 60 0 0
Sun Mountain Resort
 376 2 0
All non-community systems
About this data

Water systems are matched to Okanogan County, nearest to Riverside 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. Retrieved from ECHO on Oct 11, 2026.