B62/100
Bloomington Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 103,153 residents · Indiana
What's In Bloomington's Tap Water?
69
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.005 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 1 — URGENTResolved
Violation related to Nitrate
When: August 1, 2024 – August 19, 2024Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2023 – May 8, 2023Rule: Stage 1 DBPREnforcement: 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
OOLITIC WATER WORKS
Population Served
1,315
Water Source
Purchased Surface Water
System ID
IN5247005
B&B WATER PROJECT, INC.
Population Served
4,695
Water Source
Purchased Surface Water
System ID
IN5253001
CITY OF BLOOMINGTON UTILITIES
Population Served
83,000
Water Source
Surface Water
System ID
IN5253002
EAST MONROE WATER CORPORATION
Population Served
3,648
Water Source
Purchased Surface Water
System ID
IN5253003
VAN BUREN WATER, INC.
Population Served
6,670
Water Source
Purchased Surface Water
System ID
IN5253008
WASHINGTON TWP WATER AUTHORITY
Population Served
3,825
Water Source
Purchased Surface Water
System ID
IN5253009
Frequently Asked Questions About Bloomington Water
Is Bloomington tap water safe to drink?
Bloomington, Indiana tap water receives a grade of B (62/100), which is considered good. Out of 69 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 Bloomington's water?
Of the 69 contaminants tested in Bloomington'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 Bloomington have any water quality violations?
Yes, Bloomington has 101 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MCL, MR. 32 of these are health-based violations, which are the most serious category.
Do I need a water filter in Bloomington?
Bloomington 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 Bloomington's tap water come from?
Bloomington's drinking water is sourced from purchased surface water and supplied by OOLITIC WATER WORKS and 5 other water system(s). The system serves approximately 103,153 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Bloomington'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. Bloomington'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 Bloomington's water compare to other cities in Indiana?
Bloomington's water quality score of 62/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Indiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Bloomington's water quality?
If you have concerns about Bloomington'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 (OOLITIC 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.