Water Quality in Santa Rosa, CA (95401)
EPA violation data for public water systems serving ZIP code 95401.
Active Health Violations
4 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 67% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
36,861
Population
75
Water Systems
12
Violations (5yr)
4
Health-Based
Location
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Water Systems Serving This Area (75)
Santa Rosa, City Of
Petaluma, City Of
Rohnert Park, City Of
All resolvedOak Grove School
1 health-basedWillowside School
1 health-basedWillowside Mutual Water Company
Leisure Mobile Home Park
Luther Burbank Ctr For Apts
Olivet Elementary School
1 health-basedUrsuline High School
Santa Rosa Christian School
Summerfield Waldorf School
Sequoia Gardens Mobile Home Park
Wilson School
Santa Rosa Golf & Country Club
Willowside School
Mark West School
Mark West Lodge Event Center
Redwood Drive-In
Santa Rosa Christian School
California Highway Patrol
Park Royal Mutual Water Company
1 health-basedRussian River Winery
All resolvedCollege Avenue Building
Delores Lane Water System
Industry West
Gray Water System
Calvary Assembly Of God
Camp Little Bear
Athena Terrace Mutual Water Company
Pozzi S Market
Kendall-Jackson Wine Center
Unitarian Fellowship Of
Childkind Laguna Preschool
Fritsch Industrial Park
Oak Grove School District Office
Wright Head Start
Hook & Ladder Vineyards And Winery
Al Jess, Inc. Water Company
Boisset - De Loach Winery
Royal Windsor Cottages
Plumfield
Starlite Motel
Mar Linda Motel
Field Stone Winery
Sunce Winery
Sunlight 4-R School
Foppiano Vineyards
Country Market And Bar
Antonio'S
A 1 Equipment Rentals
Arco Station
Nicasio Valley Ranch Mutual Water Co.
Troy-Breeze Water System
R & S Bar
Rose Marie Gaiton
Mar Linda Motel
El Portal Motel
Clark'S Nursery
Vito'S
Brandlins Auto Service
455 Yolanda Ave Santa Rosa
Mountain View Inn
Shell Service Station
Holiday Motel
Mazatlan Restaurant
Avenue Inn
Mtn View Inn
Redwood Empire Gas
Plumfield Inc
Scenic Ave Apts
Lake Sonoma Resort
Redwood Village
Aston Avenue Apartments
Corby Avenue Apartments
Contaminants Found
A naturally occurring element that can cause cancer and other health effects at high levels.
Missed testing deadlines — not a detection of bacteria.
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jul 2025
Copper (Cu)
Exceeds limitSampled: Jul 2023
How Does This Compare?
Santa Rosa (95401) has more violations than 67% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.