A84/100
Greenfield Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 28,371 residents · Indiana
What's In Greenfield's Tap Water?
67
Contaminants Tested
1
Exceed EPA Limits
1
Above EPA Goals
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 2.10 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2025 – September 3, 2025Enforcement: 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
GREENFIELD WATER UTILITY
Population Served
26,671
Water Source
Groundwater
System ID
IN5230004
NINESTAR CONNECT - GEM WATER
Population Served
1,700
Water Source
Groundwater
System ID
IN5230008
Frequently Asked Questions About Greenfield Water
Is Greenfield tap water safe to drink?
Greenfield, Indiana tap water receives a grade of A (84/100), which is considered excellent. Out of 67 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 Greenfield's water?
Of the 67 contaminants tested in Greenfield'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 Greenfield have any water quality violations?
Yes, Greenfield has 9 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, TT. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Greenfield?
Based on EPA data, using a water filter in Greenfield 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 Greenfield's tap water come from?
Greenfield's drinking water is sourced from groundwater and supplied by GREENFIELD WATER UTILITY and 1 other water system(s). The system serves approximately 28,371 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Greenfield'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. Greenfield'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 Greenfield's water compare to other cities in Indiana?
Greenfield's water quality score of 84/100 earns a grade of A, which is considered excellent. This places Greenfield 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 Greenfield's water quality?
If you have concerns about Greenfield'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 (GREENFIELD WATER UTILITY) 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.