Tapcensus

Water quality for ZIP code 92591

ZIP 92591 covers Temecula and Murrieta in Riverside County, California, one of 71 ZIP codes in the county. 198 active public water systems serve the county; 66 had an EPA violation in the past three years.

Most likely your provider

Rancho California Water District CA3310038 · Community water system · Surface water purchased
Serves 146,147 people Rules violated, past 3 years 0 Last sanitary survey Dec 4, 2025 Distance 3.7 mi

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

Other community water systems in Riverside County

93 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Murrieta Palms Mobile Home Park
237 1 3.9 mi
Western Mwd Murrieta Division
17,837 0 6.4 mi
Oak Haven Association
120 0 6.6 mi
Western Mwd (id a Rainbow)
196 0 6.9 mi
Indian Oaks Trailer Park
5 0 7.0 mi
Farm Mutual W.c. (the)
4,026 1 9.8 mi
Eastern Municipal WD
659,923 0 13.6 mi
Outdoor Resorts Rancho CA
600 0 15.6 mi
Elsinore Valley Mwd
169,455 0 15.7 mi
Hemet, City of
Hemet
33,591 0 15.9 mi
Lake Hemet Mwd
52,913 0 18.0 mi
Bautista CC No. 36
73 3 18.0 mi
Bradford Run RV
75 0 18.6 mi
Nuevo Water Company
6,733 0 19.0 mi
Ortega Oaks RV Park&campground
180 2 19.2 mi
San Jacinto, City of
San Jacinto
20,938 0 19.2 mi
Olivet University
212 0 20.8 mi
Rancho Carrillo Mwc
210 0 21.2 mi
Golden Era Productions
500 0 21.8 mi
Anza Pines Mobile Home Park
90 0 22.0 mi
Baldy Mountain Ranch
80 0 23.8 mi
Glen Eden Sun Club
560 0 24.2 mi
Mountain Center Cafe
77 0 24.8 mi
Anza Mutual Water Company
224 1 24.9 mi
Pine Cove Water District
1,540 0 25.5 mi
All 94 community water systems in Riverside County
Non-community systems in Riverside County (104: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Kkottongnae Retreat Camp
79 0 0
Temecula/vail Lake KOA
1,123 0 0
Dripping Springs Cg Usfs
65 0 0
Sundance Meadows
73 0 0
Tucalota Springs R.v. Park
208 0 0
Cottonwood School
202 0 0
Desert Sage Youth Wellness Center
Hemet
70 0 0
Diamond Valley Market Water
2,195 1 0
Stagecoach Inn
1,006 0 0
Jojoba Hills Skp Resort, Inc.
912 1 1
Elsinore Hills RV Park
45 0 0
Elim Foolish Pleasure
104 0 0
Cahuilla Mountain Market & Cafe
57 1 0
C21 Anza
66 0 0
Grace Korean Church
50 0 0
McCall Park Riv.county Parks
53 1 0
Anza Petroleum INC
115 1 1
LA Cocina
24,524 0 0
Chapel in the Pines
80 0 0
LA Plata Water System
60 0 0
Spartan Veterinary Services
700 1 0
Hamilton School
705 0 0
Lake Fulmor Usfs
125 0 0
Keenwild Station Usfs
30 1 0
Idyllwild Pines Camp
85 0 0
Hurkey Creek Riv. Co. Parks
756 1 0
Camp Ronald McDonald for G.t.
202 0 0
Alhatti Christian Mountain Res
40 0 0
Camp Maranatha
83 1 0
Country Hills RV Park
415 0 0
Valley Auto Water
5,215 0 0
Anza Baptist Church
80 0 0
MT San Jacinto ST Park (stone Creek)
150 0 0
Vista Grande Station Usfs
30 2 1
Terwilliger Association
2,401 0 0
Lawler Park Riv.county Parks
26 1 0
Tahquitz Pines
59 0 0
Marion Mtn/ Fern Basin Usfs
40 0 0
Pine Springs Ranch
68 1 0
Azalea Trails Girl Scouts Camp
50 0 0
Twin Pines Boys Ranch
30 0 0
Morongo Golf Course at Tukwet Cnyn
185 0 0
Paradise Valley Cafe
58 0 0
Cherry Valley Ranch LLC
135 0 0
Camp Joe Scherman
105 0 0
Maverik Fueling Station
Riverside
129 0 0
Palm Springs Aerial Tramway
1,530 0 0
Santa Rosa Springs
25 0 0
Hidden Valley Nature Center
1,210 0 0
Dark Canyon Campground Usfs
40 1 0
All non-community systems
About this data

Water systems are matched to Riverside 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

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 California 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.