A92/100
Dorchester Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,696 residents · Texas
What's In Dorchester's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2015.
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 DORCHESTER
Population Served
1,696
Water Source
Groundwater
System ID
TX0910028
Frequently Asked Questions About Dorchester Water
Is Dorchester tap water safe to drink?
Dorchester, Texas tap water receives a grade of A (92/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Dorchester's water?
1 contaminants were tested in Dorchester's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Dorchester have any water quality violations?
Yes, Dorchester has 4 EPA violation(s) on record, with the most recent in 2015. Violation types include MR, Other, MCL. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Dorchester?
Dorchester 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 Dorchester's tap water come from?
Dorchester's drinking water is sourced from groundwater and supplied by CITY OF DORCHESTER. The system serves approximately 1,696 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Dorchester'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. Dorchester'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 Dorchester's water compare to other cities in Texas?
Dorchester's water quality score of 92/100 earns a grade of A, which is considered excellent. This places Dorchester 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 Dorchester's water quality?
If you have concerns about Dorchester'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 DORCHESTER) 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.