South Lake Tahoe, California: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 27 community water systems serving 113,383+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is South Lake Tahoe Tap Water Safe to Drink?
25 of 27 tested water systems in South Lake Tahoe meet federal drinking water standards with no active violations. 2 systems have 2 active health-based violations — check individual reports below for details. 1 system has been tested for PFAS (forever chemicals).
South Lake Tahoe Water Quality Overview
South Lake Tahoe, California is served by 27 community water systems providing water to approximately 113,383 residents. These systems draw from groundwater (25), surface water (2) sources. 2 active health-based violations across South Lake Tahoe water systems require attention. Including monitoring and reporting violations, there are 180 total violations on record.
Find Your Water System
Search by ZIP code to find your exact water provider and see its full EPA report.
All 27 water systems in South Lake Tahoe
Looking for water quality data across the whole state? See our full California tap water safety report covering California’s EPA-regulated water systems.
South Lake Tahoe Drinking Water: Frequently Asked Questions
Is South Lake Tahoe, California tap water safe to drink?
25 of 27 tested water systems in South Lake Tahoe meet federal drinking water standards with no active violations. 2 systems have 2 active health-based violations — check individual reports below for details. 1 system has been tested for PFAS (forever chemicals).
How many water utilities serve South Lake Tahoe, California?
27 community water systems serve South Lake Tahoe, California, providing water to approximately 113,383 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does South Lake Tahoe tap water have lead?
Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.
What contaminants have been found in South Lake Tahoe drinking water?
EPA violation records for South Lake Tahoe water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.
How do I find out which water company serves my address in South Lake Tahoe?
Enter your South Lake Tahoe ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).