Tapcensus

Water quality for ZIP code 92145

ZIP 92145 covers 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

Poway, City of CA3710015 · Community water system · Surface water · Poway
Serves 49,888 people Rules violated, past 3 years 0 Last sanitary survey May 4, 2023 Distance 4.0 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
Lakeside WD
 35,500 1 6.0 mi
San Diego County Water Authority
 0 0 7.8 mi
Ramona Municipal WD
 36,455 0 9.2 mi
Padre Dam Mwd
 93,980 0 10.3 mi
San Diego, City of
San Diego		 1,408,937 0 10.3 mi
Rincon del Diablo Mwd (id-A)
 5,016 0 10.3 mi
Helix Water District
 277,918 0 10.4 mi
San Pasqual Academy
 298 0 11.2 mi
Del Dios Mutual Water Company
 330 3 11.8 mi
Olivenhain Mwd
 86,458 0 13.1 mi
Santa FE I.d.
 21,539 0 13.5 mi
Rincon del Diablo Mwd (id-1)
 28,427 0 13.8 mi
Escondido, City of
Escondido		 137,044 0 14.1 mi
Del Mar, City of
Del Mar		 3,950 0 14.9 mi
Rancho Santa Teresa MW Co.
 102 2 16.0 mi
Oakvale Park
 260 3 16.3 mi
Alpine Oaks Estates LLC
 185 0 17.0 mi
Lake Wohlford Resort
 250 0 17.0 mi
Willowside Terrace Water Association
 100 2 17.8 mi
San Dieguito WD
 40,405 1 17.9 mi
Vallecitos WD
 114,700 1 18.2 mi
Otay Water District
 242,155 0 18.7 mi
Nas North Island & Nab Coronado
 421 0 19.7 mi
Sweetwater Authority
 184,915 0 19.7 mi
MHC TT Inc. (dba Pio Pico)
 23 0 21.2 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
Sycamore Canyon / Goodan Ranch
 50 0 0
Oakoasis Open Space Preserve
 25 1 0
EL Monte County Park
 100 0 0
Bandy Canyon Ranch Corp
 3,564 0 0
Hodges Reservoir Recreation Area
 200 0 0
San Pasqual Battlefield State Park
 44 0 0
City of San Diego EL Capitan Reservoir
 300 0 0
Questhaven Municipal Water District
 81 2 0
Ramona Oaks RV Resort
 250 4 0
Alpine American Legion
 100 1 0
Daley Ranch
 200 0 0
Sutherland Reservoir Recreation Area
 300 1 0
Diamond Jack's RV Ranch
 115 1 1
The Oaks Venture, LLC
 220 0 0
Skyline Ranch RV Park & Campground
 45 0 0
Dhs Border Patrol Hwy 94 Checkpoint
 83 2 1
Camp Winacka
 250 0 0
Descanso Fire Station
 34 0 0
Auerbach Farms
 68 0 0
Santa Ysabel Nature Center
San Diego 		248 0 0
Descanso Junction
 100 1 0
All Saints Retreat and Formation Center
 72 2 1
Apple Water IS Good
 25 1 0
Spencer Valley School District
 40 2 0
Calvary Chapel Julian
 101 1 0
Cuyamaca SP Paso Picacho
 691 0 0
San Diego Mountain Lodge
 26,641 3 0
William Heise County Park
 850 1 0
Rey River Ranch Corp.
 12 0 0
Sacred Mountain Inn
 30 1 0
Thousand Trails Oakzanita Inc.
 404 0 0
Camp Denver Fox
 86 1 1
Cuyamaca SP Green Valley
 455 0 0
Jess Martin County Park
 150 1 0
Cuyamaca Outdoor School
 20 0 0
Oak Knoll Village
 66 1 0
South Bay Rod & Gun Club Inc.
 18,900 1 0
Nickel Beer Water Company
San Diego 		100 0 0
Whispering Winds Catholic Conference Cen
 164 0 0
Julian Oaks Camp
 72 0 0
East County Transitional Living Center
 50 1 0
Pinecrest
 70 0 0
Pinezanita Inc.
 400 0 0
Camp Cedar Glen
 65 1 0
KQ Ranch Resort
 400 0 0
Yoga Center Retreat
 201 0 0
Mataguay Scout Reservation
 4,000 1 0
Yoga Center Mother's Kitchen
 101 0 0
ND Daniel's Investment LLC
 106 0 0
Palomar Mtn. SP Silvercrest
 143 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.