Tapcensus

Water quality for ZIP code 84121

ZIP 84121 covers Brighton, Cottonwood Heights, Holladay, Murray, and Alta in Salt Lake County, Utah, one of 42 ZIP codes in the county. 78 active public water systems serve the county; 32 had an EPA violation in the past three years.

Most likely your provider

Alta Town Water System UTAH18049 · Community water system · Ground water
Serves 5,228 people Rules violated, past 3 years 2 Last sanitary survey Jun 24, 2025 Distance 3.5 mi

Other community water systems in Salt Lake County

38 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
SL County Service Area NO 3 Snowbird
5,110 1 3.7 mi
Silver Fork Pipeline Corp
300 0 4.1 mi
Silver Lake Company
522 0 6.1 mi
Boundary Spring Water CO
150 1 7.6 mi
Holliday Water Company
15,000 0 8.3 mi
Sandy City Water System
99,750 2 9.0 mi
White City Wid
15,800 0 9.4 mi
Midvale City Water System
33,005 0 10.8 mi
Jordan Valley Wcd
99,335 0 10.9 mi
Cottonwood Coves INC
350 4 11.2 mi
Spring Glen Water Company
50 0 11.2 mi
Murray City Water System
38,723 1 11.2 mi
Waterpro INC
33,100 0 11.7 mi
Emigration Improvement District
1,000 1 11.8 mi
VA Medical Center Slc
2,798 2 12.5 mi
South Salt Lake City Water System
23,600 4 13.0 mi
University of Utah
57,080 2 13.0 mi
Draper City Water System
23,205 0 13.4 mi
Taylorsville-Bennion ID
67,098 0 14.2 mi
Summit Vista Water Company
630 1 15.0 mi
Salt Lake City Water System
383,612 0 15.0 mi
South Jordan City
89,704 0 15.9 mi
Muirhouse Homeowners Association
280 1 15.9 mi
Riverton City Water System
45,600 0 16.0 mi
Bluffdale Water System
20,000 0 16.3 mi
All 39 community water systems in Salt Lake County
Non-community systems in Salt Lake County (39: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Cardiff A.p.o
83 0 0
Spruces Campground
590 0 0
Jordan Pines Campground
102 0 0
Solitude Mountain Ski Area LLC
175 2 0
Big Cottonwood Pine Tree Water CO INC
74 0 0
MT Haven Owners Association
85 1 0
Watson Shelter Water System
340 0 0
Mill D Subdivision
45 1 0
Alfs Inn
600 0 0
Albion Basin Campground
210 1 0
Wasatch Resort
60 0 0
Wasatch Mtn Club Lodge
100 0 0
Redman Campground
161 2 1
Forest Glen B and C Water System
97 0 0
Log Haven Restaurant
100 0 0
Forest Glen a
72 0 0
Camp Tracy
350 0 0
Cottonwood Club
522 1 0
Ruths Diner
530 1 0
Emigration Brewing Company
86 0 0
Geneva Rock Products
75 0 0
L & B Resources
130 0 0
Camp Williams
800 0 0
Kennecott Zone a RO
0 0 0
Hexcel INC
1,818 0 0
Kennecott Section 21
1,302 0 0
Kennecott Lark
280 0 0
Kennecott Copperton Concentrator
240 0 0
Kennecott Utah Metals Tunnel
740 1 0
Chevron Products Company
480 1 0
SL County Service Area NO 3 Mid-Gad
400 0 0
Salt Lake City Utah Air National Guard
375 0 0
Mountain Dell Cafe and Golf Course
346 1 0
Brighton Lds Summer Camp
254 2 1
Utah Data Center
250 0 0
Millcreek Inn
150 0 0
Camp Tuttle (episcopal)
85 0 0
Forest Home Company
77 0 0
Evergreen Summer Homes Association
50 0 0
About this data

Water systems are matched to Salt Lake 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 Utah 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.