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Marion County Wellfield Education Corporation

Groundwater and Drinking Water Protection for Indianapolis and Marion County Indiana

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    • Am I in a Drinking Water Protection Area?
    • Wellfield FAQs
    • Who is MCWEC?
  • For Businesses
    • Industry Specific Guidelines
    • Local Regulations
    • Guides, Forms, & Resources
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Main Content

Groundwater is Your Drinking Water: PROTECT IT!

Education and resources for all citizens plus businesses in Marion County, IN wellfields to prevent pollution to our drinking water resources.

Am I in a Drinking Water Protection Area?

Use our interactive tools to search if your home or business is located in a drinking water protection area also known as a wellfield or wellhead protection area. …

Search the map about Am I in a Drinking Water Protection Area?

Schedule Assessment

We conduct free and confidental personalized site assessments for any business located in one of Marion County’s wellfields.

Get started

Business Resources

Printable guides, forms, and checklists for best management practices and required for compliance with Marion County and Indianapolis wellfield regulations.

Browse resources

Secondary Containment /
Spill Assistance Program

Businesses located in a wellfield are eligible for assistance in order to help them achieve compliance with the wellfield protection code.

Get supplies

Recent News

Artificial Intelligence Impacts to Drinking Water

December 10, 2025

It may seem impossible to avoid artificial intelligence chat bots and search results these days, but there are hidden costs to our water supply as data centers that house computing resources continue to expand.

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Snow Removal Tips to Protect Groundwater

November 29, 2025

With winter quickly approaching and the first snow under our belt, it’s a good time to thing about snow removal and how snow and ice can impact groundwater. When we think of pollution traveling into drains and streams, we often think of rain events. But snow eventually turns into traveling water too! The same waste […]

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What is Nonpoint Source Pollution?

November 24, 2025

Before the implementation of the Clean Water act in the 1970s, water pollution from industries and local municipalities directly into waterways was a major source of the country’s polluted water. Now indirect impacts pose the biggest threat to water quality.

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By the numbers

7
Wellfield Protection Areas in Marion County, Indiana
33
square miles of land legally designated as Wellfield Protection Areas
10
billion gallons of water used yearly as part of the public water supply
72
wells which supply water to the public drinking water system

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Free, Confidential Assessments

MCWEC representatives can help your business identify site specific ways to limit potential for groundwater contamination. You may receive free spill containment supplies in return. These assessments are free and intended to ensure businesses are operating in ways protective to groundwater; observations are NOT reported to any regulatory agencies.

Schedule Your Assessment

About the Marion County Wellfield Corporation

In My Community

Get connected with the water in your community!
The U.S. EPA offers a variety of tools to discover the environment around you.

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