Tapcensus

Water quality in Lakeside, California

Lakeside is in San Diego County. 198 active public water systems serve the county; 83 had an EPA violation in the past three years.

Most likely your provider

Lakeside WD CA3710013 · Community water system · Surface water purchased
Serves 35,500 people Rules violated, past 3 years 1 Last sanitary survey Nov 19, 2025 Distance 1.9 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
Padre Dam Mwd
 93,980 0 2.4 mi
Helix Water District
 277,918 0 6.4 mi
San Diego County Water Authority
 0 0 8.2 mi
Alpine Oaks Estates LLC
 185 0 9.7 mi
Willowside Terrace Water Association
 100 2 10.7 mi
Ramona Municipal WD
 36,455 0 11.4 mi
Poway, City of
Poway		 49,888 0 11.6 mi
Otay Water District
 242,155 0 13.0 mi
San Diego, City of
San Diego		 1,408,937 0 13.9 mi
MHC TT Inc. (dba Pio Pico)
 23 0 14.5 mi
San Pasqual Academy
 298 0 16.0 mi
Rancho Santa Teresa MW Co.
 102 2 16.4 mi
Descanso Community Water District
 870 3 16.8 mi
Sweetwater Authority
 184,915 0 17.1 mi
Rincon del Diablo Mwd (id-A)
 5,016 0 17.3 mi
Sunrise Estates Mutual Water Company
 150 2 18.0 mi
Del Dios Mutual Water Company
 330 3 19.5 mi
Heavenly Oaks
 300 1 19.5 mi
North Peak Mutual Water Company
 294 0 19.7 mi
Pine Valley Trailer Park
 200 0 20.2 mi
Barrett Lake MH and RV LLC
 300 1 20.4 mi
Nas North Island & Nab Coronado
 421 0 20.6 mi
Pine Hills Mutual Water Company
 380 2 20.8 mi
Cuyamaca Water District
 160 0 20.9 mi
Escondido, City of
Escondido		 137,044 0 20.9 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
EL Monte County Park
 100 0 0
Oakoasis Open Space Preserve
 25 1 0
City of San Diego EL Capitan Reservoir
 300 0 0
Sycamore Canyon / Goodan Ranch
 50 0 0
Alpine American Legion
 100 1 0
Diamond Jack's RV Ranch
 115 1 1
Skyline Ranch RV Park & Campground
 45 0 0
Dhs Border Patrol Hwy 94 Checkpoint
 83 2 1
Bandy Canyon Ranch Corp
 3,564 0 0
Descanso Fire Station
 34 0 0
Ramona Oaks RV Resort
 250 4 0
San Pasqual Battlefield State Park
 44 0 0
Descanso Junction
 100 1 0
All Saints Retreat and Formation Center
 72 2 1
Hodges Reservoir Recreation Area
 200 0 0
Sutherland Reservoir Recreation Area
 300 1 0
The Oaks Venture, LLC
 220 0 0
South Bay Rod & Gun Club Inc.
 18,900 1 0
East County Transitional Living Center
 50 1 0
Thousand Trails Oakzanita Inc.
 404 0 0
Camp Winacka
 250 0 0
Cuyamaca SP Green Valley
 455 0 0
Cuyamaca SP Paso Picacho
 691 0 0
ND Daniel's Investment LLC
 106 0 0
Cuyamaca Outdoor School
 20 0 0
William Heise County Park
 850 1 0
Questhaven Municipal Water District
 81 2 0
Auerbach Farms
 68 0 0
Santa Ysabel Nature Center
San Diego 		248 0 0
Apple Water IS Good
 25 1 0
Calvary Chapel Julian
 101 1 0
Spencer Valley School District
 40 2 0
Whispering Winds Catholic Conference Cen
 164 0 0
Pinezanita Inc.
 400 0 0
Jess Martin County Park
 150 1 0
Sacred Mountain Inn
 30 1 0
Pinecrest
 70 0 0
Nickel Beer Water Company
San Diego 		100 0 0
KQ Ranch Resort
 400 0 0
Daley Ranch
 200 0 0
Julian Oaks Camp
 72 0 0
Potrero Elementary School
 300 0 0
Potrero General Store
 75 0 0
City of San Diego, Camp Morena
 200 0 0
Lake Morena County Park
 300 0 0
Potrero County Park
 100 1 0
Caltrans, Buckman Springs Rest Area
 25 1 0
Tecate Vista Mutual Water Company
 204 1 1
Muir Industries Inc.
 70 0 0
Tecate Supermarket
 25 0 0
All non-community systems
About this data

Water systems are matched to San Diego County, nearest to Lakeside 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.

Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.