Tapcensus

Water quality in Edna, California

Edna is in San Luis Obispo County. 172 active public water systems serve the county; 54 had an EPA violation in the past three years.

Most likely your provider

Golden State Water Company Edna CA4010023 · Community water system · Ground water
Serves 1,495 people Rules violated, past 3 years 0 Last sanitary survey Aug 28, 2025 Distance 1.4 mi
View system details EPA facility report

Other community water systems in San Luis Obispo County

71 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Lopez Project
 69 1 2.3 mi
Edna Valley Ranch East
 132 0 2.4 mi
Anza Vineyard Estates Mutual Water CO
 60 0 3.1 mi
H2o, INC
 70 1 3.3 mi
Afuera de Chorro Water Company
 85 1 3.7 mi
Varian Ranch Mutual Water
 105 0 4.3 mi
Baron Canyon Mutual Water Co.
 81 0 4.4 mi
Higuera Apartments
 30 3 4.6 mi
Monte Sereno Mutual Benefit Water
 65 0 4.9 mi
Pismo Beach Water Department
 7,944 2 5.0 mi
San Luis Obispo Water Department
 49,534 0 5.4 mi
Terra de Oro Water Company
 38 0 5.6 mi
Canyon Crest Mutual Benefit WC
 133 0 5.8 mi
Country Hills Estates
 60 0 5.8 mi
Avila Valley Mutual Water CO
 75 0 5.9 mi
Las Ventanas Ranch
 108 0 6.0 mi
City of Arroyo Grande Utilities Division
 17,963 1 6.1 mi
City of Grover Beach Public Works Dept
 12,701 0 6.3 mi
San Miguelito Mwc
 1,600 1 6.7 mi
Irish Hills Mutual Water CO
 135 0 7.1 mi
Nacimiento Water Project
 0 0 7.2 mi
Avila Beach Community Services District
 1,630 0 7.3 mi
Ken Mar Gardens
 84 2 7.3 mi
Oceano Comm Services Dist.
 7,598 0 7.4 mi
Bassi Ranch Mutual Water Co.
 85 2 7.5 mi
All 72 community water systems in San Luis Obispo County
Non-community systems in San Luis Obispo County (100: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Edna Valley Vineyards
 30 0 0
Center of Effort Winery
 75 0 0
Chamisal Vineyards
Cayucos 		40 0 0
Strasbaugh, INC
 200 1 0
Noll Properties
 100 0 0
Fiero Lane Water Company, Inc.
 324 0 0
Slo Partners
 40 1 1
J M Sims Water Supply
 34 0 0
Waste Connections Water CO
 35 1 0
Parsons Water Supply
 35 0 0
Horizon Lane Water Supply
 32 0 0
Tmc Suburban, LLC
 25 0 0
Holdgrafer & Associates
 30 0 0
Vachell Water System
 150 1 1
Tank Farm Business Park
 45 2 1
Octagon Barn Center Association
 200 0 0
141 Suburban Road Water Supply
 25 1 0
Paragon Triangle Water Supply
 50 0 0
Coastal Christian School
 650 0 0
Toyota San Luis Obispo
 57 0 0
Elks Lodge #322
 40 3 1
Talley Farms Labor Housing
 90 0 0
Biddle Regional County Park
 27 0 0
Madonna Inn Water Company
 120 3 1
Tiger Water Supply
 1,600 0 0
Playa Dulce
 35 0 0
Sycamore Mineral Springs Resort
 200 1 1
Branch Elementary School
 253 0 0
Congregation Beth David
 25 0 0
Pacific Dunes Ranch
 26 0 0
Lopez Recreation Area
 100 0 0
Port San Luis Harbor District
 125 0 0
Laetitia Vineyard & Winery INC
 62 0 0
Santa Margarita KOA
 70 0 0
Santa Margarita Recreation Area
 150 0 0
Greenheart Farms
 91 0 0
Ball Tagawa Growers
 60 0 0
Precision Mutual Water Company
 25 1 0
Zoo Med-Winterhaven
Cayucos 		80 1 0
Speedling, INC
 40 0 0
Sheridan Road Mutual Water Association
 38 1 1
Santa Margarita Ranch Headquarters
Cayucos 		62 0 0
Jack Ready Imagination Park
Cayucos 		200 0 0
Montana de Oro State Park
 990 1 0
Cerro Alto Campground
 30 1 0
Granite Ridge
 50 0 0
Cuyama Lane Water Company
 25 3 1
Halfway Station
 25 1 0
Loading Chute
 25 1 0
Creston Elementary School
 100 0 0
All non-community systems
About this data

Water systems are matched to San Luis Obispo County, nearest to Edna 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.

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.