C56/100
Sweeny Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,978 residents · Texas
What's In Sweeny's Tap Water?
52
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.05 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
3
Unresolved
0
Health-Related
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2025 – June 30, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2024 – December 31, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Failed to issue ongoing public notification
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: July 1, 2023 – January 18, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved
Disinfection byproduct treatment technique failure
When: December 19, 2021Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 SWEENY
Population Served
3,978
Water Source
Groundwater
System ID
TX0200009
Frequently Asked Questions About Sweeny Water
Is Sweeny tap water safe to drink?
Sweeny, Texas tap water receives a grade of C (56/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 21 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Sweeny's water?
Of the 52 contaminants tested in Sweeny's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Sweeny have any water quality violations?
Yes, Sweeny has 21 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, TT. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Sweeny?
Based on EPA data, using a water filter in Sweeny 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 Sweeny's tap water come from?
Sweeny's drinking water is sourced from groundwater and supplied by CITY OF SWEENY. The system serves approximately 3,978 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Sweeny'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. Sweeny'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 Sweeny's water compare to other cities in Texas?
Sweeny's water quality score of 56/100 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 Sweeny's water quality?
If you have concerns about Sweeny'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 SWEENY) 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.