Chances are, the water you drank this morning came from underground. Not a river. Not a reservoir. But from deep beneath your feet — from ancient aquifers and bedrock that have been filtering and storing freshwater for thousands of years. That’s groundwater, and it’s a bigger deal than most people realize.
Every year during the second week of March, National Groundwater Awareness Week (GWAW) gives us the perfect excuse to stop taking it for granted. Running from March 8–14, 2026, this annual observance shines a light on the responsible development, management, and use of one of our most essential — and invisible — natural resources.
Here in the Upper Ohio River Basin, groundwater isn’t just an environmental talking point. It’s what flows from taps in rural homes across western Pennsylvania, Ohio, and West Virginia every single day.
What Is National Groundwater Awareness Week?
GWAW has been an annual observance since 1999, established to raise public awareness around groundwater’s critical role in our daily lives. It’s a reminder to celebrate what we have — and to take responsibility for protecting it.
For private well owners especially, GWAW is a call to action: test your water, tend your system, and treat any issues before they become health risks. Annual inspections by certified water well contractors are an important part of keeping private systems operating safely and producing clean, healthy water.
But this week isn’t just for well owners. Whether your water comes from a private well, a municipal supply, or a rural water system, groundwater is almost certainly part of your story.
The Numbers That Put It In Perspective
Let’s talk facts for a second, because these are genuinely eye-opening:
- More than 44% of the US population depends on groundwater as a primary drinking water source.
- The US uses 82.3 billion gallons of fresh groundwater per day for public and private supply, irrigation, livestock, manufacturing, mining, power generation, and more — according to the US Geological Survey.
- The average household’s leaks can waste nearly 10,000 gallons of water per year, according to the EPA.
- 30% of all household water use goes to outdoor uses — and in hot or dry climates, that number can climb as high as 70%.
That last one is worth sitting with. Nearly a third of the water we use at home never makes it inside. It goes to lawns, gardens, and washing cars — much of it wasted through inefficiency. And every gallon that’s wasted is a gallon that puts more pressure on already stressed groundwater supplies.
Why This Matters Locally
In our region, this isn’t an abstract issue. Across the 14 counties of western Pennsylvania that make up H2O Water Network’s primary service area- from Greene County to Clarion, from the headwaters of the Ohio to the hollows of Fayette and Somerset – rural communities depend heavily on private wells and groundwater systems that often go years without proper maintenance or testing.
Many of our partner watershed organizations work directly in communities where water quality challenges are real and ongoing. Legacy pollution from coal mining, agricultural runoff, and aging infrastructure all create potential threats to groundwater. Staying informed and staying proactive — especially as a private well owner — is one of the most direct ways residents can protect their own health and their neighbors’.
What You Can Do Right Now
You don’t have to be a water scientist to make a difference. Here’s where to start:
If you have a private well:
- Schedule an annual inspection with a certified water well contractor
- Test your water – at minimum for bacteria, nitrates, and pH
- Visit WellOwner.org for tip sheets and a “Find A Contractor” tool to locate certified professionals near you
For everyone:
- Fix those leaks. A dripping faucet or running toilet adds up fast.
- Be thoughtful about outdoor water use — especially in summer
- Learn where your water comes from and what protects it
Resources Worth Bookmarking
- EPA Groundwater and Drinking Water — regulations, key topics, and deeper resources
- USGS National Groundwater Monitoring Network — real-time data and monitoring resources
- National Groundwater Association — the hub for GWAW information and groundwater science
- WellOwner.org — the go-to for private well owners
- Source Water Collaborative — toolkits, webinars, and newsletters for protecting source water
Every Drop Connects
Groundwater doesn’t exist in isolation. What happens on the surface — how we farm, how we develop land, how we handle chemicals and waste — eventually finds its way underground. And from underground, it finds its way back to us.
That’s the watershed perspective we work from every day at H2O Water Network. We’re all connected — upstream and downstream, surface and subsurface. Protecting groundwater is protecting community.
So this week, take a few minutes to learn something new about where your water comes from. Share this post with someone who relies on a private well. Test your water if you haven’t recently. And if you want to get more involved in protecting water resources across our region, we’d love to connect.💧 Want to stay informed on water issues across Pennsylvania, Ohio, and West Virginia? Stay tuned right here.
