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MCWEC

Groundwater and Drinking Water Protection for Indianapolis and Marion County Indiana

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    • Am I in a Wellfield?
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Main Content

Marion County Wellfield Education Corporation

Groundwater and Drinking Water Protection for Indianapolis and Marion County Indiana
Am I in a wellfield?

Groundwater is your drinking water. Protect it!

Our mission is to protect the groundwater resources of Marion County by providing education and resources to individuals and businesses.

Schedule Assessment

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

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.

Business Resources

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

Recent News

Wellhead Protection Program in Indiana

August 5, 2025

As part of the 1996 ammendments to the Safe Drinking Water Act and the Indiana Wellhead Protection Rule (327 IAC 8-4.1 [PDF]), each well or wellfield providing groundwater to a Community Public Water System in Indiana is required to implement a Wellhead Protection Program (WHPP). WHPP are just one component of overarching Source Water Protection […]

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Leased Spaces: What Every Developer Needs to Know

July 24, 2025

This article is part of a series for land developers in Indianapolis. See the article one about wellhead protection ordinances and article two about erosion control. Before developing land in a Wellhead Protection Area (WHPA), it is important to consider what types of businesses may occupy the spaces. In Indianapolis, some activities such as new […]

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Erosion Prevention: What Every Developer Needs to Know

July 17, 2025

This article is part of a series for land developers in Indianapolis. See the first article about wellhead protection ordinances. During any construction process, even small increases of foot or vehicle traffic can impact on-site soil and stormwater management. Soil that is disturbed can travel off-site or contribute to on-site erosion, impacting our ecosystems and […]

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Fun Facts

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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