A82/100
Danville Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 10,500 residents · Indiana
What's In Danville's Tap Water?
32
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.40 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
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
DANVILLE WATER WORKS
Population Served
10,500
Water Source
Purchased Surface Water
System ID
IN5232004
Frequently Asked Questions About Danville Water
Is Danville tap water safe to drink?
Danville, Indiana tap water receives a grade of A (82/100), which is considered excellent. Out of 32 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 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 Danville's water?
Of the 32 contaminants tested in Danville'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 Danville have any water quality violations?
Yes, Danville has 3 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MCL, MR. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Danville?
Based on EPA data, using a water filter in Danville 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 Danville's tap water come from?
Danville's drinking water is sourced from purchased surface water and supplied by DANVILLE WATER WORKS. The system serves approximately 10,500 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Danville'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. Danville'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 Danville's water compare to other cities in Indiana?
Danville's water quality score of 82/100 earns a grade of A, which is considered excellent. This places Danville among the better-performing water systems in Indiana. Visit our Indiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Danville's water quality?
If you have concerns about Danville'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 (DANVILLE WATER WORKS) 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.