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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
  • Waste Disposal
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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

Marion County Wellfield business receives Recycling and Reuse Award

September 22, 2025

This month, the Indiana Department of Environmental Management (IDEM) presented a 2025 Governor’s Awards for Environmental Excellence to Pepper Construction, located in Marion County’s Riverside Wellfield Protection Area. The award was in the Recycling and Reuse category for the company’s efforts to increase construction waste recycling. Through their Waste Reduction Program, Pepper Construction provides on-site […]

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Protect the 0.99% (It’s Groundwater!)

September 3, 2025

Sept 4 marks the annual celebration of Protection Your Groundwater Day, a time where water professionals around the country encourage communities to promote and protect their groundwater supply.

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Microplastics in Drinking Water

August 30, 2025

The latest issue of The Aquifer, the newsletter from the Groundwater Guardian, includes an article about a topic lately found in media headlines – microplastics in drinking water.

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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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