South Lake Tahoe
Is South Lake Tahoe tap water safe to drink?
Mostly yes — South Lake Tahoe scores 84/100. This report aggregates EPA drinking water data across 5 local systems in South Lake Tahoe. We found 120 total violations (45 unresolved).
Real-Time Environment
Live: 09:00 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in South Lake Tahoe.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in South Lake Tahoe?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Should you buy a water purifier in South Lake Tahoe? See our analysis.
Baby Formula Safety
Is South Lake Tahoe tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to South Lake Tahoe, water quality is a key factor in long-term property maintenance. The high safety score (84/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for South Lake Tahoe
Based on EPA SDWIS violation records and contaminant test results for all water systems serving South Lake Tahoe.
Frequently Asked Questions
Is South Lake Tahoe tap water safe to drink?
Mostly yes — South Lake Tahoe scores 84/100.
How many water systems serve South Lake Tahoe?
South Lake Tahoe is served by 5 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in South Lake Tahoe?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for South Lake Tahoe.
What is the water quality score for South Lake Tahoe?
The water quality score for South Lake Tahoe is 84 out of 100, based on EPA contaminant data, violation history, and testing results across the 5 systems serving the city.
What are the top contaminants in South Lake Tahoe?
The top contaminants detected in South Lake Tahoe include Lead (90th percentile). View detailed information on our contaminants page.
South Lake Tahoe Water Quality Summary
South Lake Tahoe, CA receives a water quality score of 84/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 5 public water systems serving the area.
South Lake Tahoe's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
South Lake Tahoe's score of 84 is 5 points below the California state average of 89, and above the nationwide average of roughly 78/100 across all U.S. states.
Homeowners and residents in South Lake Tahoe can expect generally dependable tap water, which is sourced and managed across several distinct utility systems serving this mid-size California community. The regional water profile is influenced by the West Coast's diverse geological formations, alongside nearby agricultural activities and urban centers. While the municipal supply performs very respectably overall, the decentralized nature of the local infrastructure means that water characteristics might shift slightly depending on where you settle down.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our California water quality rankings report →
Key Contaminants
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Water Systems Serving South Lake Tahoe (5)
Lakeside Park Association
CSouth Tahoe Pud - Main
ASouth Shore Recreation Area
CTahoe Keys Water Company
ALukins Brothers Water Company
ACheck Your Specific Address
Water quality can vary by neighborhood in South Lake Tahoe.
Related
Quick compare in California
Compare South Lake Tahoe water quality: View all states · Contaminant library · How we score water quality