Tapcensus

Water quality in Calistoga, California

Calistoga is in Napa County. 188 active public water systems serve the county; 56 had an EPA violation in the past three years.

Most likely your provider

Calistoga, City of CA2810002 · Community water system · Surface water · Calistoga
Serves 5,610 people Rules violated, past 3 years 2 Unresolved 1 Distance 0.8 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 Napa County

27 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Calistoga Farm Worker Center
 67 0 4.3 mi
Tucker Acres Mutual Water Co.
 200 1 4.7 mi
Vailima Estates Mutual Water
 25 0 7.5 mi
Adventist Health St. Helena Hospital
 617 0 7.7 mi
Howell Mountain Mutual Water Company
 1,244 0 8.1 mi
LA Tierra Heights Mutual
 67 2 8.2 mi
Linda Vista Mutual Water CO
 90 0 8.4 mi
Linda Falls Terrace Mutual
 35 0 8.7 mi
Pacific Union College
 758 0 9.0 mi
St. Helena, City of
St. Helena		 5,386 2 9.5 mi
River Ranch Farm Worker Center
 66 0 10.9 mi
Berryessa Estates (lbrid)
 474 0 13.8 mi
Berryessa Pines Water System
 261 2 17.6 mi
Town of Yountville
 2,785 0 18.6 mi
Veterans Home of California
 1,000 1 18.8 mi
Mondavi Farm Worker Center
 66 0 20.1 mi
Spanish Flat Water District
 92 2 20.8 mi
Hess Winery
 100 2 21.1 mi
R Ranch at the Lake
 20 2 21.5 mi
Berryessa Highlands
 715 1 23.1 mi
Capell Valley Estates
 208 2 24.1 mi
Circle Oaks Water District
 500 0 24.6 mi
Napa, City of
Napa		 84,804 0 25.7 mi
Napa River Ranch
 70 5 29.8 mi
Milton Road Water Company
 39 1 30.7 mi
All 28 community water systems in Napa County
Non-community systems in Napa County (160: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Duffy's Napa Valley Rehab
 100 0 0
Bennett Lane Winery
Calistoga 		83 0 0
Chateau Montelena Winery
 26 0 0
Golden Haven Motel
 49 0 0
Joseph Cellars Winery
 32 0 0
Twomey Cellars
 43 0 0
Clos Pegase Winery
 45 1 1
Sterling Vineyards
 500 0 0
Castello DI Amorosa
 98 1 1
Schramsberg Winery
 65 0 0
Csp-Bothe-Napa Valley State Park
 586 0 0
Behrens Family Winery
 39 0 0
Larkmead Vineyards
 31 0 0
Frank Family Vineyards
 25 0 0
Davis Estates
 84 0 0
Robert Keenan Winery
 48 0 0
Cal Fire Sonoma-Lake-Napa Unit HQ
 65 0 0
Csp Bale Grist Mill State Historic Par
 185 0 0
Rombauer Vineyards
 50 0 0
Cairdean Winery
 30 1 0
Titus Winery
 64 0 0
Hunnicutt Winery
 35 0 0
O'shaughnessy Winery
 31 0 0
Ehlers Estate
 42 0 0
St. Helena Purlieu LLC
 25 0 0
Trinchero Winery
 263 0 0
Wine Country Inn
 60 1 1
Duckhorn Vineyards
 25 0 0
Outpost Wines
 30 0 0
Markham Vineyards
 38 0 0
Fantesca Winery
 41 0 0
Howell Mountain School
 100 1 1
Beringer Vineyards
 300 0 0
Mending Wall Winery
 37 0 0
Napa County Schools: Pope Valley
 100 0 0
Napa Valley Reserve Water System
 49 1 0
Pcsh, LLC
 25 0 0
Lmr Main Street Partners LLC
 26 0 0
Rancho la Jota
 40 0 0
Sutter Home Winery
 244 0 0
Phelps Vineyards
 56 0 0
V. Sattui Winery
 45 2 1
Cathiard Family Estate Winery
 75 0 0
Milat Winery
 128 0 0
Wheeler Farms Winery
 43 0 0
Del Dotto Winery
 27 0 0
Whitehall Lane Winery
 45 0 0
Raymond Vineyard & Cellar
 90 1 1
The Ranch Winery
 200 1 1
William Hill Winery
 25 1 0
All non-community systems
About this data

Water systems are matched to Napa County, nearest to Calistoga 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. Retrieved from ECHO on Oct 11, 2026.