Tapcensus

Water quality in Petaluma, California

Petaluma is in Sonoma County. 445 active public water systems serve the county; 76 had an EPA violation in the past three years.

Most likely your provider

Petaluma, City of CA4910006 · Community water system · Ground water · Petaluma
Serves 61,427 people Rules violated, past 3 years 0 Last sanitary survey Jun 18, 2024 Distance under 0.1 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 Sonoma County

128 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Boulevard Heights Mutual Water
 60 0 2.6 mi
Penngrove Water Company (puc)
 1,742 0 5.0 mi
Terrace View Water System
 60 0 5.2 mi
College Park Mutual Water Company
 244 1 5.6 mi
George Ranch Mutual Water Company
 148 1 6.0 mi
Diamond a Mutual Water Company
 640 1 6.1 mi
Canon Manor Water System
 828 0 6.4 mi
Lichau Hylands Mutual Water Company
 56 0 6.8 mi
Happy Acres Mutual Benefit Water System
 260 0 6.9 mi
Sonoma State University
 1,500 0 7.1 mi
Cotati, City of
Cotati		 7,290 0 7.3 mi
Summit View Ranch Mutual Water Co.
 45 0 8.0 mi
Rohnert Park, City of
Rohnert Park		 43,821 0 8.0 mi
Madrone Mutual Water Company
 76 0 8.1 mi
Sobre Vista Water Company
 80 1 8.4 mi
U.s. Coast Guard Training Center
 469 1 8.7 mi
Valley of the Moon Water District
 23,140 0 8.8 mi
Sonoma Mountain County Water District
 185 0 8.8 mi
Moon Valley Water System
 691 0 9.0 mi
Eddy Drive
Sonoma		 48 0 9.8 mi
Sonoma, City of
Sonoma		 10,619 1 9.9 mi
Wendell Lane Mutual Water Company
 82 0 10.4 mi
Bennett Ridge Mutual Water Company
 439 0 10.6 mi
Mission Highlands Mutual Water Co.
 150 0 10.8 mi
Yulupa Mutual Water Company
 200 0 10.8 mi
All 129 community water systems in Sonoma County
Non-community systems in Sonoma County (316: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Petaluma Livestock Auction Yard
 100 0 0
Jan Klebe
 101 0 0
Lombardi's Deli & Bbq
 300 0 0
Westside Storage Water System
 77 0 0
Willowbrook Ale House
 50 0 0
Cinnabar Elementary School
 228 0 0
Adobe Christian Church
 50 0 0
Sonoma County Parks-Putnam Park
 52 0 0
Csp-Petaluma Adobe State Historic Park
 134 0 0
KOA Petaluma
 713 0 0
Seneca Family of Agencies
 30 1 1
Liberty School
 225 0 0
Karah Estate Winery
 27 1 1
Keller Estate Winery
 50 0 0
Westerbeke Ranch
 25 0 0
Sonoma State U.-Fairfield Osborn Pres
 151 0 0
Washoe House
 75 0 0
Sonoma County Pub Works-Central Landfill
 34 1 1
Roche Family Winery
 45 0 0
Csp-Jack London State Historic Park
 130 0 0
Schug Cellars
 30 0 0
7180 Hwy 116 LLC
 57 1 0
Gloria Ferrer Caves
 70 0 0
Dunham School
 175 1 1
Sonoma Mountain Zen Center
 33 0 0
Anaba Winery
 105 0 0
Carneros Deli
 29 0 0
Cline Cellars
 500 0 0
Benziger Family Winery
 25 0 0
Sonoma Seventh Day Adventist Church
 70 0 0
Sangiacomo Winery
Sonoma 		62 0 0
Fat Pilgrim General Store
Sonoma 		30 0 0
Presentation School
 200 1 1
The Lodge at Sonoma
 300 1 0
Broadway Market
 100 0 0
Cornerstone Sonoma
 175 0 0
Sonoma Valley Moose Lodge #2048
 80 0 0
Casia Inn
Sonoma 		25 0 0
Schellville Grill
 50 0 0
Stripe N Seal
 26 0 0
Jehovah's Witnesses Hall
 650 0 0
Curotto Enterprises 2 LLC
 28 0 0
Adair B.r. Cohn, LLC
 155 0 0
Adair Viansa, LLC
 200 0 0
Jacuzzi Winery
 108 0 0
S & W Warehousing, LLC
 50 1 1
Hamel Family Wines
 59 0 0
Carneros Warehousing
 50 0 0
Mayacamas Warehouse, LLC
 40 1 1
The Rental Place
 30 0 0
All non-community systems
About this data

Water systems are matched to Sonoma County, nearest to Petaluma 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.