Tapcensus

Water quality for ZIP code 93441

ZIP 93441 covers Los Olivos in Santa Barbara County, California, one of 24 ZIP codes in the county. 151 active public water systems serve the county; 47 had an EPA violation in the past three years.

Most likely your provider

Midland School CA4200618 · Community water system · Ground water
Serves 100 people Rules violated, past 3 years 0 Last sanitary survey Aug 11, 2023 Distance 6.4 mi
View system details EPA facility report

Other community water systems in Santa Barbara County

62 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Woodstock Ranch
 325 0 7.4 mi
Oak Trail Ranch
 102 0 7.7 mi
Oak Trail Estates
 211 0 8.8 mi
Rancho Ynecita
 129 0 9.3 mi
Cachuma Project
 0 0 9.9 mi
Santa Ynez Rancho Estates
 304 0 10.1 mi
Santa Ynez Roblar Mobile Home Park
 25 4 10.6 mi
Walking M Ranches
 54 2 11.3 mi
Skyline Park
 295 0 12.6 mi
Santa Ynez River Water Cons. Dist. Id#1
 7,022 0 12.7 mi
Cachuma Village
 60 1 12.8 mi
Meadowlark Ranches Mutual Water Company
 150 1 13.4 mi
Rancho Marcelino Water
 240 0 13.7 mi
Chalk Hill Estates HOA
Lompoc		 38 0 14.6 mi
Mesa Hills Mutual Water Company
 34 0 14.8 mi
Jonata Homeowners Association
 38 0 15.0 mi
Solvang Water Division
 5,980 0 15.1 mi
Bobcat Springs Mutual Water Company
 115 0 15.3 mi
City of Buellton Water Division
 5,091 0 16.0 mi
Los Alamos Community Services District
 1,534 0 16.5 mi
Sisquoc
 137 0 18.6 mi
Los Prietos Complex
 845 1 19.0 mi
Rosario Park
 38 0 19.8 mi
Vista Hills Mutual Water Company
 75 2 20.4 mi
EL Capitan Mutual Water Company
 325 1 20.7 mi
All 63 community water systems in Santa Barbara County
Non-community systems in Santa Barbara County (88: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Zaca Lake Retreat
 105 1 0
Fess Parker Winery
 415 0 0
Zaca Mesa Winery
 170 0 0
Koehler Winery
 2,008 0 0
San Lorenzo Seminary
 145 0 0
Andrew Murray Vineyard
 1,815 0 0
Firestone Vineyard
 37 0 0
Petros Winery
 50 0 0
Brander Vineyard
 80 0 0
Vincent Vineyards
 46 0 0
Shepherd of the Valley
 323 0 0
Tres Hermanas Winery
 35 0 0
Flood Ranch/rancho Sisquoc
 50 0 0
Rusack Vineyards
 1,327 1 0
Lake Cachuma County Park
 40,019 0 0
Rancho Alegre
 519 0 0
Flag IS UP Farms
 150 0 0
Chisan Orchids Nursery
 110 1 1
The Ranch Church
 204 0 0
Riverbench Winery
 70 0 0
Brick Barn Estate Winery
 160 0 0
Rsm Resort LLC
 1,011 0 0
Cambria Winery
 30 0 0
Olive Crest
 25 0 0
Pence Vineyards
Lompoc 		463 0 0
Circle Bar B Guest Ranch
 25 1 0
Fremont/santa Ynez Improvement Assoc.
 25 0 0
San Marcos Christian Camp
 75 0 0
Gatehouse Tasting Room at Bien Nacido
 950 0 0
Paradise Canyon Improvement Association
 115 0 0
Cold Spring Tavern
 120 2 0
Dierberg/star Lane Vineyard
 2,502 0 0
Peake Ranch
 47 0 0
Los Prietos Boy's Camp
 25 1 1
Foley Estates Winery
 366 0 0
Folded Hills Winery
 235 1 0
Eleven Confessions Winery
 29 0 0
Rancho Oso
 416 0 0
Sable Offshore Corp las Flores Canyon
 90 1 1
Sable Offshore Corp Popco
 30 1 1
Lafond Winery
 107 0 0
Melville Winery
 25 0 0
EL Capitan Beach State Park
 915 0 0
Babcock Winery
 25 1 0
Resource Center
Santa Barbara 		85 2 0
Refugio State Beach
 857 0 0
White Lotus
 42 0 0
Sanford Winery
 170 1 1
Vista de las Cruces
 50 0 0
Cuyama Mutual Water Company
 48 0 0
All non-community systems
About this data

Water systems are matched to Santa Barbara 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 town EPA lists the system as serving, from OpenStreetMap.

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.