Tapcensus

Water quality for ZIP code 92028

ZIP 92028 covers Fallbrook, Rainbow, Temecula, and Oceanside in San Diego County, California, one of 115 ZIP codes in the county. 198 active public water systems serve the county; 83 had an EPA violation in the past three years.

Most likely your provider

Fallbrook Pud CA3710008 · Community water system · Surface water purchased
Serves 35,237 people Rules violated, past 3 years 0 Distance 3.3 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 San Diego County

81 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Rainbow Municipal WD
 23,536 0 4.1 mi
Camp Pendleton (south)
 44,555 0 10.5 mi
Pauma Valley Water Company
 185 5 11.6 mi
Rancho Estates Mutual Water Co.
 200 0 12.6 mi
Oceanside, City of
Oceanside		 174,340 0 12.8 mi
Valley Center Mwd
 30,166 0 13.4 mi
Vista Irrigation District
 134,501 0 13.7 mi
Rancho Pauma Mutual WC
 899 1 14.0 mi
Yuima Municipal Water District
 360 0 14.3 mi
Yuima Municipal Water District Ida
 693 0 14.3 mi
Lazy H Mutual Water Company
 117 0 15.5 mi
Camp Pendleton (north)
 11,576 0 15.5 mi
Vallecitos WD
 114,700 1 16.3 mi
Carlsbad Mwd
 96,371 0 18.4 mi
Lake Wohlford Resort
 250 0 19.2 mi
Palomar Mountain Mutual Water Co.
 150 1 19.2 mi
Oakvale Park
 260 3 19.8 mi
Palomar Observatory
 20 0 19.9 mi
Escondido, City of
Escondido		 137,044 0 20.0 mi
Rincon del Diablo Mwd (id-1)
 28,427 0 20.1 mi
Del Dios Mutual Water Company
 330 3 22.5 mi
Rincon del Diablo Mwd (id-A)
 5,016 0 23.7 mi
Olivenhain Mwd
 86,458 0 23.8 mi
San Dieguito WD
 40,405 1 23.9 mi
San Pasqual Academy
 298 0 25.9 mi
All 82 community water systems in San Diego County
Non-community systems in San Diego County (116: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Santa Margarita County Preserve
 75 0 0
Fallbrook Kamp Retreat
 24 0 0
Daley Ranch
 200 0 0
Palomar Mtn. SP Doane Valley
 131 0 0
Palomar Mtn. SP Silvercrest
 143 0 0
Fry Creek / Observatory
 660 0 0
Oak Knoll Village
 66 1 0
Yoga Center Mother's Kitchen
 101 0 0
Questhaven Municipal Water District
 81 2 0
Yoga Center Retreat
 201 0 0
Hodges Reservoir Recreation Area
 200 0 0
Rey River Ranch Corp.
 12 0 0
Oak Grove Complex
 68 0 0
San Pasqual Battlefield State Park
 44 0 0
Camp Denver Fox
 86 1 1
Bandy Canyon Ranch Corp
 3,564 0 0
San Diego Mountain Lodge
 26,641 3 0
Sutherland Reservoir Recreation Area
 300 1 0
Ramona Oaks RV Resort
 250 4 0
Warner Springs Ranch Resort LLC
 32 2 1
Warner Unified School District
 250 1 0
Sycamore Canyon / Goodan Ranch
 50 0 0
The Oaks Venture, LLC
 220 0 0
Mataguay Scout Reservation
 4,000 1 0
Auerbach Farms
 68 0 0
Santa Ysabel Nature Center
San Diego 		248 0 0
Oakoasis Open Space Preserve
 25 1 0
Spencer Valley School District
 40 2 0
Apple Water IS Good
 25 1 0
Calvary Chapel Julian
 101 1 0
EL Monte County Park
 100 0 0
Camp Cedar Glen
 65 1 0
Sacred Mountain Inn
 30 1 0
Camp Winacka
 250 0 0
Julian Oaks Camp
 72 0 0
Nickel Beer Water Company
San Diego 		100 0 0
Jess Martin County Park
 150 1 0
City of San Diego EL Capitan Reservoir
 300 0 0
William Heise County Park
 850 1 0
Pinecrest
 70 0 0
Whispering Winds Catholic Conference Cen
 164 0 0
Pinezanita Inc.
 400 0 0
KQ Ranch Resort
 400 0 0
Cuyamaca SP Paso Picacho
 691 0 0
Anza Borrego SP Palm Canyon
 507 0 0
Alpine American Legion
 100 1 0
Cuyamaca Outdoor School
 20 0 0
Descanso Fire Station
 34 0 0
Cuyamaca SP Green Valley
 455 0 0
Stagecoach Trails RV Resort
 600 2 0
All non-community systems
About this data

Water systems are matched to San Diego 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 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.