Carmel Drinking Water Quality
What's Really in Your Tap Water?
Carmel tap water has some quality concerns you should be aware of. At 301.5 ppm (17.6 gpg), the water is quite hard — you may notice mineral buildup on fixtures. Lead levels test well below the EPA action level. There have been 8 violations recorded over the past 3 years.
Some Concerns
Monitor recommended
17.6 GPG hardness
Lead
Below EPA action level
EPA action level: 15 ppb
Hardness
Very Hard water
US Average: 100 ppm
Is Carmel Tap Water Safe to Drink?
Carmel tap water has some quality concerns but remains within acceptable limits.
- •4 health-based violations in the past 3 years across 3 water systems.
- •Consider testing your water at home and using a certified water filter for added safety.
The data below shows test results from 3 water utilities serving 149K people in the Carmel area. Water quality testing is conducted regularly and reported to the EPA.
How Hard is Carmel Water?
301.5 ppm
17.6 grains per gallon
Very hard water causes significant mineral buildup. A water softener is recommended.
Estimated from 1 neighboring county. Actual values may vary.
Impact on Your Home
Shower
Dries out skin & hair
Kitchen
Heavy mineral deposits
Laundry
Stiff, dingy clothes
Appliances
Significant scale
Regional Comparison
Values in ppm (mg/L as CaCO₃)
Based on 96 water samples from Hamilton County.
Your pipes tell a different story
The data above shows what leaves the treatment plant—not what comes out of your faucet. Old pipes, lead solder, and building plumbing can add contaminants the city never tests for. Know exactly what's in your Carmel tap water.
Home test kits detect lead, bacteria, pesticides, and 100+ other contaminants. Results in 5-10 business days from certified labs.
Lead & Contaminants
Understanding lead levels and water quality violations in Carmel
Lead Test Results
90th Percentile Lead Level
3 ppb
Carmel lead levels are well within safe limits.
Regular testing is still recommended, as lead can enter water through household plumbing.
Last sampled: 2024-12-31
About Lead in Drinking Water
What is Lead in Water?
Lead is a toxic metal that can dissolve into drinking water from older pipes, solder, and fixtures. It's invisible, tasteless, and odorless, making testing the only way to detect it. The EPA has set an action level of 15 ppb, though they emphasize there is no safe level of lead exposure.
Potential Health Effects
Developmental delays, learning difficulties, lower IQ, behavioral issues
High blood pressure, kidney damage, reproductive issues
How to Reduce Exposure
- •Run water for 30 seconds to 2 minutes before drinking, especially in the morning
- •Use cold water for cooking and drinking (hot water dissolves more lead)
- •Install a NSF-certified filter designed to remove lead
- •Test your water, especially if your home was built before 1986
EPA Compliance History
Action Recommended
Active health-based violations detectedConsider using a certified water filter until violations are resolved. Contact your utility for updates on corrective actions.
3-Year Violation Summary
8
Total Violations
4
Health-Related
4
Administrative
Health-Related Violations
Contaminant exceeded EPA safety limits. May require filter or alternative water source.
Administrative Violations
Missed testing deadlines or reporting. Does not indicate water quality issues.
Who Provides Carmel's Water?
Utility Name
CARMEL WATER DEPARTMENT
EPA System ID (PWSID)
IN5229004
Primary Water Source
Ground Water Under Influence
Population Served
149K
Frequently Asked Questions
Common questions about Carmel tap water quality
Nearby Cities in Indiana
Indianapolis
Very Hard water
Fort Wayne
Very Hard water
Merrillville
Very Hard water
Evansville
Very Hard water
Gary
Very Hard water
Jeffersonville
Hard water
This data is for informational purposes only. Water quality can vary by neighborhood and building. For official reports, contact your local water utility or the EPA. Learn about our methodology