Tapcensus

California

Kern County drinking water quality

336 active public water systems serve 1,062,083 people in Kern County. 254 are compliant, 82 had at least one EPA violation in the past three years, 0 are designated serious violators, and 28 carry a health flag.

Active systems 336 167 community systems
People served 1.1M by public water systems
Systems with violations 82 24% of active systems, past 3 years
Serious violators 0 28 systems carry a health flag

Needs attention

East Niles Csd CA1510006 · Community water system · Serves 32,517 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Arvin Community Services Dist CA1510001 · Community water system · Serves 19,669 1 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Tehachapi, City of CA1510020 · Tehachapi · Community water system · Serves 9,094 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Inyokern Csd CA1510036 · Community water system · Serves 1,125 1 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Pinon Pines Mwc CA1510054 · Community water system · Serves 908 1 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Riverdale Village CA1500452 · Community water system · Serves 750 2 rules violated in the past three years. Unresolved: Lead and Copper Rule and Lead and Copper Rule Revisions.
Tradewind Water Assoc. CA1500406 · Community water system · Serves 632 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Canyon Meadows Mutual Water CA1500443 · Community water system · Serves 465 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Son Shine Properties CA1500588 · Community water system · Serves 438 2 rules violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
Rand Communities Water District CA1510016 · Community water system · Serves 303 4 rules violated in the past three years. Unresolved: Lead and Copper Rule, Lead and Copper Rule Revisions, and Public Notice Rule and Revised PN Rule.

18 more systems with a serious violator or health flag designation are in the lists below.

Community water systems

167 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Cws Bakersfield
 268,129 0 0
Bakersfield, City of
Bakersfield 		171,108 0 0
Delano, City of
Delano 		51,428 0 0
Oildale Mwc
 45,315 2 1
Indian Wells Valley W.d.
 41,474 0 0
Tejon Castac WD I5 & Laval RD
 38,125 0 0
Antelope Valley E Kern Wtr Agy-Rosamond
 37,634 0 0
Vaughn WC INC
 37,189 0 0
East Niles Csd
 32,517 2 1
Cws North Garden
 27,634 0 0
Wasco, City of
Wasco 		22,757 0 0
Shafter, City of
Shafter 		21,915 0 0
West Kern Water District
 20,585 0 0
Arvin Community Services Dist
 19,669 1 1
Lamont Public Utility Dist
 19,057 0 0
Rosamond Csd
 18,150 0 0
California City, City of
California City 		14,198 1 1
McFarland, City of
Mcfarland 		14,161 3 1
Greenfield County WD
 11,590 0 0
Golden Hills Csd
 9,857 0 0
Tehachapi, City of
Tehachapi 		9,094 2 1
Bear Valley Csd
 5,592 1 0
Wasco St. Prison Reception Ctr
 5,217 0 0
Kern Valley State Prison
 5,000 0 0
Stallion Springs Csd
 4,910 2 1
Mojave Pud
 4,699 0 0
Cci Tehachapi
 2,993 0 0
Lerdo Sheriff S Facility
 2,800 0 0
Frazier Park Pud
 2,592 0 0
Erskine Creek WC
 2,500 0 0
Cws Kernville
 2,376 0 0
Mil Potrero Mwc
 2,200 0 0
Boron Csd
 2,086 0 0
Lost Hills Utility District
 1,926 1 0
Lebec County Water District
 1,379 1 0
Buttonwillow Cwd
 1,337 0 0
Inyokern Csd
 1,125 1 1
North Edwards WD
 1,105 3 2
Cws Southlake System
 1,015 0 0
China Lake Naval Air Weapons Station
 1,000 0 0
Desert Lake Comm Serv Dist
 968 0 0
Pinon Pines Mwc
 908 1 1
Lake of the Woods Mwc
 875 0 0
Mountain Mesa WC
 777 0 0
Riverdale Village
 750 2 2
Victory Mutual Water Company
 740 0 0
A.f.p. Mutual Water Company
 710 0 0
Cws Lower Bodfish Water System
 689 0 0
Edwards Afb Main Base
 661 2 0
Tradewind Water Assoc.
 632 2 1
Non-community systems (169: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Willow Springs Raceway
 5,022 0 0
Famoso Raceway, Smokers Inc.
 5,000 0 0
Caltrans-Boron Rest Stop Water System
 3,000 0 0
Kern Valley Airport
 2,507 0 0
Tejon Ranch Grapevine Water
 2,207 0 0
Buttonwillow Tiger Mart
 2,006 1 0
Bolthouse Fresh Foods
 1,917 0 0
Wp&a Lost Hills Water System
 1,506 0 0
Cal Trans Buttonwillow Sfty Rsra
 1,500 0 0
Usfs Old Isabella Auxiliary Dam WS
 1,320 0 0
Rio Bravo Greeley School Water System
 1,219 1 0
Grimmway Enterprises-Malaga Water System
 1,200 2 0
Rosamond School Water System
 940 1 0
Lakeside School
 897 2 1
Usfs Tillie Creek Live Oaks Campgrounds
 865 0 0
Frito-Lay, Inc. Water System
 793 0 0
EL Tejon Middle School
 722 0 0
Usfs Paradise Cove Campground
 520 0 0
Frazier Mountain High School
 516 0 0
Costajo Arco Ampm
 505 0 0
California Resources Elk Hills
 500 0 0
Airstreams Renewables
 495 0 0
Tehachapi Church of the Nazarene
 469 0 0
Wind Wolves Preserve
 452 0 0
Buttonwillow Raceway Park Classic
 451 0 0
Primex Farms Water System
 450 1 0
Edwards Afb Air Force Research Lab
 446 0 0
Christian Life Assembly Water System
 406 0 0
Csp Red Rock Canyon
 404 0 0
Kern CO P&r-Lake Woollomes Water System
 401 0 0
Usfs Hungry & Boulder Gulch Campground
 375 0 0
Aera Energy-Llc
 350 0 0
Bear Mountain RV Park Water System
 350 0 0
Buttonwillow Raceway Park Circuit
 350 0 0
Bethel in the Hills Pcg Camp
 320 0 0
Camp Arev
 301 0 0
Chevron San Joaquin
 300 0 0
EL Taco Loco
 300 0 0
Grimmway Farms Frozen Foods
 300 0 0
The Garlic Company
 300 0 0
Wp&a King Water System
 300 0 0
Lake Isabella KOA Campground
 280 1 0
Shepherd of the Mountains Lutheran Churc
 280 0 0
North Kern Golf Course
 273 0 0
DI Giorgio School Water System
 268 3 0
Countryside Mkt & Restrn-119
 250 1 0
Pond School Water System
 250 2 1
Soledad Mountain Project Water System
 250 0 0
V Lions Ops Water System
 250 1 0
Wonderful Nurseries, LLC
Wasco 		240 0 0
Camp Lakota Water System
 238 0 0
Diamond Jim S Casino
 230 0 0
Famoso Fuel Stop
 230 0 0
Camp ST Nicholas Water System
 212 1 0
Central Valley Eggs, LLC
Wasco 		210 1 1
Orange Grove RV Park
 205 1 0
South Fork Middle School
 204 0 0
Usfs Sandy Flat Campground WS
 204 0 0
Crossover Church of Rosedale WS
 202 0 0
Kern CO P&r-Tehachapi MT Park Water
 202 0 0
Califia Farms Water System
 200 0 0
California Portland Cement
 200 1 0
Famoso Inn Water System
 200 0 0
Revol Greens
 190 0 0
Shepherd of the Hills Tehachapi
 190 0 0
Grapevine RV Park
 184 0 0
Camp Tecuya Water System
 180 0 0
Sun Pacific Shippers-Lerdo
 175 0 0
Usfs Camp 9
 161 0 0
Lerdo Travel Center
 158 0 0
Arco Ampm #42924
Bakersfield 		156 0 0
Csp Fort Tejon
 155 0 0
Gateway Market Water System
 154 0 0
South Fork Elementary School Water Sys
 154 0 0
Bakersfield 420 Club
 150 0 0
China Lake Naval Air South Range
 150 0 0
Dorner Family Vineyards
 150 0 0
Kern Energy
 150 0 0
Sunview Cold Storage Water System
 130 0 0
Wildland Training Center
 130 0 0
Camp EL Camino Pines
 128 0 0
Countryside Mkt & Restrnt Comanche
 125 0 0
National Cement Co.-Lebec Plant
 120 0 0
Tehachapi Cement LLC
 115 0 0
Grimmway Farms David Road
 114 2 0
Copus Road LLC
 110 0 0
Kern CO P&r-Greenhorn Mt. Park Water
 108 0 0
Mountain Valley Airport
 108 0 0
Calvary Chapel
 107 0 0
Jameson Ranch Camp
 106 3 0
Csp Tule Elk
 105 0 0
Tehachapi Wine and Cattle Co.
 102 0 0
Ski West Village Water System
 101 0 0
Bear Mountain Truck Stop
 100 0 0
Countryside Mkt & Restrnt Bear Mtn
 100 0 0
Flying J Travel Plaza
 100 0 0
Interstate 5 Utility Company
 100 0 0
Marko Zaninovich, Inc. Pond Road
 100 0 0
Peak to Peak Mountain Charter School WS
 100 3 1
Sun Pacific Shippers-Maricopa Water Sys.
 100 0 0
All 169 in the systems table
Inactive systems (349, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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.