• Skip to main content
  • Skip to footer

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
    • Secondary Containment Help
  • Free Reviews
  • Waste Disposal
  • Reports
  • News
  • Contact
  • Español

Main Content

Groundwater is Your Drinking Water: PROTECT IT!

Education and resources for Marion County, IN citizens plus businesses located in a wellfield 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?

Wellfield Reviews

We can help! We provide free, confidental wellfield reviews for any new or existing business located in one of Marion County, Indiana's wellfields.

Get started

Business Resources

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

Browse resources

Secondary Containment Help

Businesses located in Marion County wellfields may be eligible to receive free secondary containment products to help prevent spills and protect drinking water.

Get supplies

Recent News

Updated Stream Steward Guide and Building with the Land Guide help property owners understand water, soil, and erosion

October 16, 2026

Understanding the water and soil on our properties is an important aspect not only of understanding the flow of water near us, but in keeping the water clean and safe for people, plants, and wildlife. The Marion County Soil and Water Conservation District has been hard at work providing education to homeowners, land developers and […]

Read More

Safe debris disposal after flood events

September 28, 2026

After last month’s clean up from historic central Indiana flooding, we find ourselves reflecting on lessons learned from managing storm debris around our businesses and homes. We may be faced with general piles of debris, but if we break it down and start to separate the waste into categories (like we might do for recycling), […]

Read More

Upcoming P2 Lunch and Learn: Oil and Water Separators

September 21, 2026

This week on Wednesday, September 23 at 12pm, the Indiana Department of Environmental Management (IDEM) is hosting a special P2 Lunch & Learn webinar: Oil and Water Separators. The P2 Program (Pollution Prevention) focuses on helping small businesses and manufacturers reduce or eliminate pollution at the source by establishing current best management practices for using […]

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

Footer

Free, Confidential Wellfield Reviews

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 reviews are free and intended to ensure businesses are operating in ways protective to groundwater; observations are NOT reported to any regulatory agencies.

Schedule Your Wellfield Review

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.

© 2026 · Marion County Wellfield Education Corporation · Privacy Policy · Terms of Use · Contact