Tapcensus

Water quality in Valley Center, California

Valley Center 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

Valley Center Mwd CA3710026 · Community water system · Surface water purchased
Serves 30,166 people Rules violated, past 3 years 0 Distance 2.4 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
Lake Wohlford Resort
 250 0 4.0 mi
Oakvale Park
 260 3 4.8 mi
Lazy H Mutual Water Company
 117 0 4.8 mi
Rancho Pauma Mutual WC
 899 1 5.0 mi
Yuima Municipal Water District Ida
 693 0 6.3 mi
Yuima Municipal Water District
 360 0 6.3 mi
Escondido, City of
Escondido		 137,044 0 7.5 mi
Rancho Estates Mutual Water Co.
 200 0 7.6 mi
Pauma Valley Water Company
 185 5 8.4 mi
Rincon del Diablo Mwd (id-1)
 28,427 0 10.1 mi
Vallecitos WD
 114,700 1 10.4 mi
Rincon del Diablo Mwd (id-A)
 5,016 0 10.9 mi
San Pasqual Academy
 298 0 10.9 mi
Rainbow Municipal WD
 23,536 0 11.6 mi
Palomar Mountain Mutual Water Co.
 150 1 12.0 mi
Palomar Observatory
 20 0 12.3 mi
Vista Irrigation District
 134,501 0 12.5 mi
Del Dios Mutual Water Company
 330 3 12.6 mi
Lake Henshaw Resort Inc.
 108 0 14.7 mi
Olivenhain Mwd
 86,458 0 16.2 mi
Ramona Municipal WD
 36,455 0 16.3 mi
Oceanside, City of
Oceanside		 174,340 0 16.9 mi
Rancho Santa Teresa MW Co.
 102 2 17.0 mi
Poway, City of
Poway		 49,888 0 17.2 mi
Carlsbad Mwd
 96,371 0 17.4 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
Daley Ranch
 200 0 0
Oak Knoll Village
 66 1 0
Palomar Mtn. SP Silvercrest
 143 0 0
Palomar Mtn. SP Doane Valley
 131 0 0
San Pasqual Battlefield State Park
 44 0 0
Yoga Center Mother's Kitchen
 101 0 0
Fry Creek / Observatory
 660 0 0
Yoga Center Retreat
 201 0 0
Bandy Canyon Ranch Corp
 3,564 0 0
Rey River Ranch Corp.
 12 0 0
Camp Denver Fox
 86 1 1
Hodges Reservoir Recreation Area
 200 0 0
Questhaven Municipal Water District
 81 2 0
Sutherland Reservoir Recreation Area
 300 1 0
San Diego Mountain Lodge
 26,641 3 0
Ramona Oaks RV Resort
 250 4 0
Oak Grove Complex
 68 0 0
Santa Margarita County Preserve
 75 0 0
The Oaks Venture, LLC
 220 0 0
Auerbach Farms
 68 0 0
Sycamore Canyon / Goodan Ranch
 50 0 0
Mataguay Scout Reservation
 4,000 1 0
Warner Springs Ranch Resort LLC
 32 2 1
Warner Unified School District
 250 1 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
Fallbrook Kamp Retreat
 24 0 0
Calvary Chapel Julian
 101 1 0
Camp Winacka
 250 0 0
EL Monte County Park
 100 0 0
Sacred Mountain Inn
 30 1 0
Camp Cedar Glen
 65 1 0
Julian Oaks Camp
 72 0 0
Jess Martin County Park
 150 1 0
Nickel Beer Water Company
San Diego 		100 0 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
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
Anza Borrego SP Palm Canyon
 507 0 0
Thousand Trails Oakzanita Inc.
 404 0 0
All non-community systems
About this data

Water systems are matched to San Diego County, nearest to Valley Center 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.