Tapcensus

Water quality for ZIP code 92401

ZIP 92401 covers San Bernardino in San Bernardino County, California, one of 91 ZIP codes in the county. 321 active public water systems serve the county; 146 had an EPA violation in the past three years.

Most likely your provider

San Bernardino City CA3610039 · Community water system · Ground water · San Bernardin0
Serves 214,665 people Rules violated, past 3 years 0 Last sanitary survey Jul 27, 2021 Distance 2.8 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 Bernardino County

146 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Gilbert Street Complex
 124 2 0.4 mi
Terrace Water Company
 2,400 0 3.4 mi
Colton, City of
Colton		 46,525 0 3.9 mi
Loma Linda University
 455 0 4.1 mi
Muscoy Mwc No. 1
 13,000 1 4.2 mi
Loma Linda, City of
Loma Linda		 25,208 0 4.8 mi
Rialto, City of
Rialto		 59,264 0 4.9 mi
East Valley Water District
 108,600 0 6.0 mi
Riverside Highland Water Company
 19,053 1 6.0 mi
West Valley Water District
 96,123 0 6.4 mi
Marygold Mwc
 3,155 1 7.6 mi
Olive Dell Ranch
 45 3 7.8 mi
Redlands City Mud-Water Div
Redlands		 78,025 0 7.9 mi
Camp Waterman Mwc
 55 1 7.9 mi
Valley View Park Mwc
 499 1 8.9 mi
Lacsd Rimforest
 717 0 9.5 mi
Crestline Village Cwd Division 10
 11,650 0 9.5 mi
Strawberry Lodge Mwc
 381 1 9.6 mi
Valley of Enchantment Mwc
 2,471 1 9.9 mi
San Gabriel Valley WC Fontana
 228,270 0 9.9 mi
Alpine Water Users Association
 2,534 0 10.2 mi
San Bernardino Valley WD
 109,608 0 10.4 mi
Cedarpines Park Mwc
 2,458 0 10.5 mi
Dogwood Blue Jay Cyn Imp
 232 1 10.7 mi
Clawa
 2,320 0 10.8 mi
All 147 community water systems in San Bernardino County
Non-community systems in San Bernardino County (174: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Socal Mobile Food Facility
Colton 		25 0 0
Arrowhead Regional Medical Center
 4,500 0 0
Best Western Cajon Pass
 34 1 0
Church of Spiritual Technology
 51 1 0
Thousand Pines Christian
 28 1 1
Alpine Retreat and Camp
 309 0 0
Glen Helen Truck Parking Facility
 25 0 0
Pali Overnight Adventures
 54 0 0
Forest Lawn Scout Reservation
 200 2 0
Dovid Oved Retreat Center
 100 0 0
Calvary Chapel Christian Camp
 34 0 0
Hidden Acres
 25 0 0
Ponderosa Pines Christian Camp
 202 0 0
Bonita Ranch RV Campground
 400 1 0
Camp Cedar Crest
 310 1 0
Silverwood Japanese Restaurant Sushi & G
 25 1 0
Mountain Streams RV Park
 16 1 0
Applewhite Campground
 3,177 1 0
Green Valley Campground
 3,029 0 0
SS Hert Trucking INC
 25 0 0
Snow Valley Mountain Resort
 35 2 0
Loch Leven Christian Camp & Conference C
 100 1 0
Petrolink Hwy 138 INC
 25 0 0
Joshua Inn
 25 1 0
Parrish Ranch
 25 0 0
OG Investments, LLC
 30 0 0
Los Rios Rancho Water System
 46 1 0
Forest Home Christian CC
 100 2 0
Redlands Colony Pipeline Association
 21 1 1
Riley's Log Cabin Farm
 105 1 0
Riley's Farm
 2,400 1 0
Camp Cedar Falls
 405 0 0
Big Pine Flats Admin & Recreation
 417 0 0
Seven Oaks MT Resort MHP
 321 0 0
Camp Angelus TR Land Assn
 57 0 0
8986 Deep Creek Road
 300 1 0
Lytle Creek Administration Site
 100 5 3
YMCA Camp Whittle
 30 1 0
Hanna Flats Campground
 4,850 0 0
DE Benneville Pines
 63 0 0
The High Adobe
 25 0 0
MT Baldy Ski Lift
 1,000 0 0
YMCA Camp Arbolado
 231 0 0
Camp la Verne
 28 2 0
Crazzy's Wasewagan Camp
 198 0 0
Big Bear Shores RV Resort
 132 0 0
R W Ranch
 101 0 0
Snow Summit
 75,500 3 1
Holcomb Valley Ranch
 250 2 0
Lone Wolf Colony
 114 0 0
All non-community systems
About this data

Water systems are matched to San Bernardino 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

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.