C45/100
Lake Mary Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 17,066 residents · Florida
What's In Lake Mary's Tap Water?
67
Contaminants Tested
1
Exceed EPA Limits
2
Above EPA Goals
3 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.46 mg/L | 1.30 mg/L | Over Limit |
1,4-dioxane | 0.550 µg/L | — | Above Goal |
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
LAKE MARY, CITY OF
Population Served
17,066
Water Source
Groundwater
System ID
FL3590201
Frequently Asked Questions About Lake Mary Water
Is Lake Mary tap water safe to drink?
Lake Mary, Florida tap water receives a grade of C (45/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 41 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Lake Mary's water?
Of the 67 contaminants tested in Lake Mary's water supply, the most notable include Copper (90th percentile), Lead (90th percentile), 1,4-dioxane. 1 contaminant(s) exceed EPA legal limits (MCLs). 3 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Lake Mary have any water quality violations?
Yes, Lake Mary has 41 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, Other. None of these are classified as health-based violations.
Do I need a water filter in Lake Mary?
Based on EPA data, using a water filter in Lake Mary is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Lake Mary's tap water come from?
Lake Mary's drinking water is sourced from groundwater and supplied by LAKE MARY, CITY OF. The system serves approximately 17,066 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Lake Mary's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Lake Mary's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Lake Mary's water compare to other cities in Florida?
Lake Mary's water quality score of 45/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Florida state page to see how all cities in the state compare.
What should I do if I'm concerned about Lake Mary's water quality?
If you have concerns about Lake Mary's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (LAKE MARY, CITY OF) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.