C53/100
Mount Vernon Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 18,181 residents · Texas
What's In Mount Vernon's Tap Water?
54
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2019.
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 MOUNT VERNON
Population Served
2,662
Water Source
Surface Water
System ID
TX0800001
CYPRESS SPRINGS SUD N PLANT 1 AND NE PLA
Population Served
13,698
Water Source
Surface Water
System ID
TX0800003
CYPRESS SPRINGS SUD SOUTH PLANT
Population Served
1,821
Water Source
Surface Water
System ID
TX0800016
Frequently Asked Questions About Mount Vernon Water
Is Mount Vernon tap water safe to drink?
Mount Vernon, Texas tap water receives a grade of C (53/100), which is considered fair. 0 contaminant(s) exceed EPA maximum contaminant levels and 39 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Mount Vernon's water?
61 contaminants were tested in Mount Vernon's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Mount Vernon have any water quality violations?
Yes, Mount Vernon has 39 EPA violation(s) on record, with the most recent in 2019. Violation types include MCL, MR, Other. 25 of these are health-based violations, which are the most serious category.
Do I need a water filter in Mount Vernon?
Mount Vernon 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 Mount Vernon's tap water come from?
Mount Vernon's drinking water is sourced from surface water and supplied by CITY OF MOUNT VERNON and 2 other water system(s). The system serves approximately 18,181 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Mount Vernon'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. Mount Vernon'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 Mount Vernon's water compare to other cities in Texas?
Mount Vernon's water quality score of 53/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Texas state page to see how all cities in the state compare.
What should I do if I'm concerned about Mount Vernon's water quality?
If you have concerns about Mount Vernon'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 MOUNT VERNON) 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.