Tapcensus

Water quality for ZIP code 92070

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

Wynola Water District CA3701837 · Community water system · Ground water
Serves 140 people Rules violated, past 3 years 2 Unresolved 1 Distance 4.8 mi
View system details EPA facility report

Other community water systems in San Diego County

81 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Lake Henshaw Resort Inc.
 108 0 6.4 mi
Rancho Santa Teresa MW Co.
 102 2 6.6 mi
Camp Stevens
 28 1 8.2 mi
Julian Community Services District
 617 3 8.5 mi
Pine Hills Mutual Water Company
 380 2 8.7 mi
Richardson Beardsley Park Inc.
 30 1 9.2 mi
Majestic Pines Community SD
 1,768 1 9.5 mi
H & J Water Company
 86 1 10.2 mi
Los Tules Mutual Water Company
 260 1 10.6 mi
North Peak Mutual Water Company
 294 0 11.0 mi
Puerta la Cruz CC #14
 40 0 12.4 mi
Cuyamaca Water District
 160 0 13.2 mi
Ramona Municipal WD
 36,455 0 13.3 mi
Warner Springs Estates
 448 0 13.8 mi
San Pasqual Academy
 298 0 14.1 mi
Quiet Oaks Mobile Home Park
 120 1 15.1 mi
Oakvale Park
 260 3 16.1 mi
Lake Wohlford Resort
 250 0 16.3 mi
Palomar Observatory
 20 0 17.0 mi
Palomar Mountain Mutual Water Co.
 150 1 17.5 mi
Lazy H Mutual Water Company
 117 0 17.6 mi
LA Cima Fire Center
 60 0 17.8 mi
Rancho Pauma Mutual WC
 899 1 19.1 mi
Yuima Municipal Water District Ida
 693 0 19.1 mi
Yuima Municipal Water District
 360 0 19.1 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
Auerbach Farms
 68 0 0
Santa Ysabel Nature Center
San Diego 		248 0 0
The Oaks Venture, LLC
 220 0 0
San Diego Mountain Lodge
 26,641 3 0
Sutherland Reservoir Recreation Area
 300 1 0
Mataguay Scout Reservation
 4,000 1 0
Spencer Valley School District
 40 2 0
Apple Water IS Good
 25 1 0
Calvary Chapel Julian
 101 1 0
Ramona Oaks RV Resort
 250 4 0
Camp Cedar Glen
 65 1 0
Sacred Mountain Inn
 30 1 0
Julian Oaks Camp
 72 0 0
Camp Winacka
 250 0 0
Nickel Beer Water Company
San Diego 		100 0 0
Jess Martin County Park
 150 1 0
Camp Denver Fox
 86 1 1
Warner Unified School District
 250 1 0
Rey River Ranch Corp.
 12 0 0
Warner Springs Ranch Resort LLC
 32 2 1
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
Yoga Center Retreat
 201 0 0
Oak Knoll Village
 66 1 0
Cuyamaca SP Paso Picacho
 691 0 0
Yoga Center Mother's Kitchen
 101 0 0
Bandy Canyon Ranch Corp
 3,564 0 0
San Pasqual Battlefield State Park
 44 0 0
Palomar Mtn. SP Silvercrest
 143 0 0
Palomar Mtn. SP Doane Valley
 131 0 0
Fry Creek / Observatory
 660 0 0
Oak Grove Complex
 68 0 0
Cuyamaca Outdoor School
 20 0 0
Stagecoach Trails RV Resort
 600 2 0
Cuyamaca SP Green Valley
 455 0 0
Oakoasis Open Space Preserve
 25 1 0
City of San Diego EL Capitan Reservoir
 300 0 0
EL Monte County Park
 100 0 0
Daley Ranch
 200 0 0
Anza Borrego SP Palm Canyon
 507 0 0
Thousand Trails Oakzanita Inc.
 404 0 0
Descanso Fire Station
 34 0 0
Anza Borrego SP Vallecito
 31 0 0
Alpine American Legion
 100 1 0
Sycamore Canyon / Goodan Ranch
 50 0 0
All Saints Retreat and Formation Center
 72 2 1
Descanso Junction
 100 1 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.