Protecting Groundwater Starts at Home: The Role of Septic System Maintenance

August 29, 2025

Across Michigan, more than 1.3 million households depend on septic systems to treat the wastewater generated in their homes. These systems are often “out of sight, out of mind”—buried underground and easy to forget. But how we care for them has a big impact on both our household budgets and our shared natural resources.

Why Septic System Maintenance Matters

A properly maintained septic system quietly does its job, protecting public health and keeping harmful pollutants out of our lakes, rivers, and streams. But when systems fail, untreated wastewater can seep into the ground, threatening drinking water supplies, contaminating groundwater, and creating costly environmental problems.

Routine care—like regular inspections and pumping every 3–5 years—keeps septic systems working efficiently. Simple practices, like not pouring grease or chemicals down the drain, conserving water, and protecting your drain field, can extend the life of your system and prevent expensive repairs.

Protecting Groundwater in Washtenaw County

Here in Washtenaw County, groundwater is a critical natural resource. It provides drinking water for thousands of residents and supports healthy ecosystems across the region. When septic systems are neglected, the very water we rely on can be put at risk. That’s why septic system stewardship is an essential part of conservation work.

Learn More: Free Webinar from EGLE

This September, the Michigan Department of Environment, Great Lakes, and Energy (EGLE) is kicking off SepticSmart Week with a free online learning opportunity:

📅 SepticSmart 2025: Septic Systems and the Environment
🗓 Monday, September 15
⏰ 9:00 – 10:00 AM EST
📍 Virtual (link will be provided after registration)
➡️ Click here to register

During this one-hour webinar, participants will learn:

  • The basics of how septic systems work
  • How septic systems interact with the environment
  • Best practices for operation and maintenance

All attendees will receive educational materials and practical tips to keep their system working properly—protecting both their home investment and Michigan’s precious groundwater resources.

Be SepticSmart

As with so many conservation issues, small steps at home can add up to a big difference for our community and environment. Whether you’re new to septic system ownership or have relied on one for years, now is a great time to learn more and commit to regular maintenance.

Do your part—be SepticSmart, protect groundwater, and keep Michigan’s waters clean for generations to come.

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