Water Quality in Greenwood, IN: 22 Violations — Grade D
Grade D · Score 54/100 · 5 water systems · Updated 2026-05-03
Greenwood's water has significant violations. Water testing and filtration are recommended.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
The compliance record maintained by the EPA for Greenwood, IN documents 22 water violations — each tied to a specific public water system and assigned a violation category in the federal Safe Drinking Water dataset.
Water Quality by ZIP Code in Greenwood
Water quality varies across Greenwood's 2 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 46142 | D | 54 | 11 | 3 | View report → |
| 46143 | D | 54 | 11 | 3 | View report → |
Water Quality Overview
Greenwood, Indiana receives a water quality grade of D with an overall score of 54 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
The 5 water systems serving Greenwood have accumulated 22 EPA violations, including 6 health-based violations. These violations are tracked across 2 ZIP codes serving approximately 543,563 people.
What Grade D Means
A grade of D indicates significant compliance issues. Greenwood's water systems have accumulated violations that suggest ongoing water quality challenges. Residents should check their specific ZIP code report and consider water testing or filtration.
Lead Levels
The average 90th percentile lead level across Greenwood water systems is 0.0030 mg/L — within EPA limits. No ZIP codes exceed the EPA lead action level.
Radon Risk
Greenwood is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Greenwood
Greenwood is served by 5 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 543,563 people across 2 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
How to Check Your Water in Greenwood
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Contaminants Detected in Greenwood Water Systems
The following contaminants have been detected or caused violations across Greenwood's water systems:
| Contaminant | Category | MCL | Violations | ZIPs Affected | Health-Based |
|---|---|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | N/A | 8 | 2 | No |
| Stage 2 DBP Rule | Treatment Technique | N/A | 4 | 2 | Yes |
| E. coli | Microbiological | N/A | 2 | 2 | Yes |
| Fecal Coliform | Microbiological | N/A | 2 | 2 | Yes |
| Stage 1 DBP Rule | Treatment Technique | N/A | 2 | 2 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 0.08 mg/L | 2 | 2 | No |
MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.
Greenwood vs. Nearby Indiana Cities
How Greenwood's water quality compares to similar cities in Indiana:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Greenwood | D | 22 | 5 | 543,563 |
| Fort Wayne | C | 559 | 5 | 285,037 |
| Arcola | D | 0 | 1 | 269,994 |
| Beech Grove | D | 0 | 1 | 880,345 |
Common Questions About Greenwood Water
These are the most common questions residents search for about water quality in Greenwood, Indiana:
Is Greenwood water hard or soft? Water hardness varies by source. Greenwood's 5 water systems use multiple sources. Check your ZIP code report for specific hardness data.
Can I drink Greenwood tap water? Greenwood's water receives a grade of D (54/100). There are 6 health-based violations — consider filtration.
What is the best water filter for Greenwood? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Greenwood vs. Indiana Average
Understanding how Greenwood compares to the broader Indiana average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Greenwood.
ZIP Codes in Greenwood
Greenwood spans 2 ZIP codes. The ZIP with the lowest water quality score is 46142. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.