A80/100
Princeton Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 61,634 residents · Texas
What's In Princeton'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) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
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: October 1, 2023 – October 10, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
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 PRINCETON
Population Served
37,019
Water Source
Purchased Surface Water
System ID
TX0430008
CULLEOKA WSC
Population Served
24,615
Water Source
Purchased Surface Water
System ID
TX0430030
Frequently Asked Questions About Princeton Water
Is Princeton tap water safe to drink?
Princeton, Texas tap water receives a grade of A (80/100), which is considered excellent. Out of 34 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 Princeton's water?
Of the 34 contaminants tested in Princeton'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 Princeton have any water quality violations?
Yes, Princeton has 25 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MR, MON. 3 of these are health-based violations, which are the most serious category.
Do I need a water filter in Princeton?
Princeton 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 Princeton's tap water come from?
Princeton's drinking water is sourced from purchased surface water and supplied by CITY OF PRINCETON and 1 other water system(s). The system serves approximately 61,634 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Princeton'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. Princeton'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 Princeton's water compare to other cities in Texas?
Princeton's water quality score of 80/100 earns a grade of A, which is considered excellent. This places Princeton 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 Princeton's water quality?
If you have concerns about Princeton'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 PRINCETON) 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.