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Marion County Wellfield Education Corporation

Groundwater and Drinking Water Protection for Indianapolis and Marion County Indiana

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

Don’t Flush Your Holidays Down the Drain

December 22, 2025

While flushing a Christmas tree down the drain is pretty unlikely, there are plenty of other ways your toilet and sink might receive some unwanted items this holiday season.

Read More

Be a Water Conscious Clothing Consumer

December 16, 2025

Most of us aren’t thinking about our drinking water when we go out to the store or browse clothing websites looking the perfect gift this holiday season. Clothing production however is a very resource intensive process – from the original materials to the disposal of our old items.

Read More

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.

Read More

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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