F17/100
Gonzales Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 16,806 residents · Louisiana
What's In Gonzales's Tap Water?
66
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2010.
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
CITY OF GONZALES WATER SYSTEM
Population Served
16,806
Water Source
Groundwater
System ID
LA1005030
Frequently Asked Questions About Gonzales Water
Is Gonzales tap water safe to drink?
Gonzales, Louisiana tap water receives a grade of F (17/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 19 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Gonzales's water?
66 contaminants were tested in Gonzales's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Gonzales have any water quality violations?
Yes, Gonzales has 19 EPA violation(s) on record, with the most recent in 2010. Violation types include MCL, Other, MR. 16 of these are health-based violations, which are the most serious category.
Do I need a water filter in Gonzales?
Gonzales water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Gonzales's tap water come from?
Gonzales's drinking water is sourced from groundwater and supplied by CITY OF GONZALES WATER SYSTEM. The system serves approximately 16,806 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Gonzales'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. Gonzales'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 Gonzales's water compare to other cities in Louisiana?
Gonzales's water quality score of 17/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Louisiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Gonzales's water quality?
If you have concerns about Gonzales'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 (CITY OF GONZALES WATER SYSTEM) 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.