Tapcensus

Water quality for ZIP code 92065

ZIP 92065 covers Ramona, San Diego Country Estates, Poway, and San Diego 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

Ramona Municipal WD CA3710019 · Community water system · Surface water purchased
Serves 36,455 people Rules violated, past 3 years 0 Last sanitary survey Oct 19, 2022 Distance 3.2 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
Rancho Santa Teresa MW Co.
 102 2 3.7 mi
San Pasqual Academy
 298 0 6.1 mi
Rincon del Diablo Mwd (id-A)
 5,016 0 11.3 mi
Oakvale Park
 260 3 11.4 mi
Poway, City of
Poway		 49,888 0 11.6 mi
Wynola Water District
 140 2 11.7 mi
Lake Wohlford Resort
 250 0 12.1 mi
Lakeside WD
 35,500 1 12.8 mi
Pine Hills Mutual Water Company
 380 2 13.0 mi
Escondido, City of
Escondido		 137,044 0 13.1 mi
Lake Henshaw Resort Inc.
 108 0 13.4 mi
North Peak Mutual Water Company
 294 0 13.7 mi
Richardson Beardsley Park Inc.
 30 1 14.3 mi
Julian Community Services District
 617 3 14.8 mi
Padre Dam Mwd
 93,980 0 14.9 mi
H & J Water Company
 86 1 14.9 mi
Camp Stevens
 28 1 15.0 mi
Del Dios Mutual Water Company
 330 3 15.6 mi
Rincon del Diablo Mwd (id-1)
 28,427 0 15.6 mi
Majestic Pines Community SD
 1,768 1 15.7 mi
Cuyamaca Water District
 160 0 16.1 mi
Alpine Oaks Estates LLC
 185 0 16.6 mi
Willowside Terrace Water Association
 100 2 16.7 mi
Valley Center Mwd
 30,166 0 17.8 mi
Lazy H Mutual Water Company
 117 0 17.8 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
Ramona Oaks RV Resort
 250 4 0
Sutherland Reservoir Recreation Area
 300 1 0
The Oaks Venture, LLC
 220 0 0
Bandy Canyon Ranch Corp
 3,564 0 0
San Pasqual Battlefield State Park
 44 0 0
Oakoasis Open Space Preserve
 25 1 0
Auerbach Farms
 68 0 0
EL Monte County Park
 100 0 0
Santa Ysabel Nature Center
San Diego 		248 0 0
Sycamore Canyon / Goodan Ranch
 50 0 0
Camp Winacka
 250 0 0
Apple Water IS Good
 25 1 0
Spencer Valley School District
 40 2 0
City of San Diego EL Capitan Reservoir
 300 0 0
Calvary Chapel Julian
 101 1 0
San Diego Mountain Lodge
 26,641 3 0
Sacred Mountain Inn
 30 1 0
Daley Ranch
 200 0 0
Hodges Reservoir Recreation Area
 200 0 0
William Heise County Park
 850 1 0
Camp Denver Fox
 86 1 1
Rey River Ranch Corp.
 12 0 0
Jess Martin County Park
 150 1 0
Julian Oaks Camp
 72 0 0
Nickel Beer Water Company
San Diego 		100 0 0
Mataguay Scout Reservation
 4,000 1 0
Camp Cedar Glen
 65 1 0
Whispering Winds Catholic Conference Cen
 164 0 0
Pinecrest
 70 0 0
Alpine American Legion
 100 1 0
Cuyamaca SP Paso Picacho
 691 0 0
Pinezanita Inc.
 400 0 0
Oak Knoll Village
 66 1 0
KQ Ranch Resort
 400 0 0
Yoga Center Retreat
 201 0 0
Questhaven Municipal Water District
 81 2 0
Yoga Center Mother's Kitchen
 101 0 0
Descanso Fire Station
 34 0 0
Cuyamaca Outdoor School
 20 0 0
Cuyamaca SP Green Valley
 455 0 0
Warner Unified School District
 250 1 0
Palomar Mtn. SP Silvercrest
 143 0 0
Palomar Mtn. SP Doane Valley
 131 0 0
Warner Springs Ranch Resort LLC
 32 2 1
Thousand Trails Oakzanita Inc.
 404 0 0
All Saints Retreat and Formation Center
 72 2 1
Descanso Junction
 100 1 0
Fry Creek / Observatory
 660 0 0
Diamond Jack's RV Ranch
 115 1 1
Skyline Ranch RV Park & Campground
 45 0 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.