A91/100
Stockdale Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 6,757 residents · Texas
What's In Stockdale's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
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 STOCKDALE
Population Served
1,693
Water Source
Groundwater
System ID
TX2470003
SUNKO WSC
Population Served
5,064
Water Source
Groundwater
System ID
TX2470005
Frequently Asked Questions About Stockdale Water
Is Stockdale tap water safe to drink?
Stockdale, Texas tap water receives a grade of A (91/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Stockdale's water?
Of the 31 contaminants tested in Stockdale's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Stockdale have any water quality violations?
Yes, Stockdale has 8 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Stockdale?
Stockdale 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. 1 contaminant(s) exceed these stricter goals.
Where does Stockdale's tap water come from?
Stockdale's drinking water is sourced from groundwater and supplied by CITY OF STOCKDALE and 1 other water system(s). The system serves approximately 6,757 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Stockdale'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. Stockdale'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 Stockdale's water compare to other cities in Texas?
Stockdale's water quality score of 91/100 earns a grade of A, which is considered excellent. This places Stockdale among the better-performing water systems in Texas. Visit our Texas state page to see how all cities in the state compare.
What should I do if I'm concerned about Stockdale's water quality?
If you have concerns about Stockdale'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 STOCKDALE) 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.