By Dr. Peter Grevatt
One of my favorite ways to travel is by bicycle. So, when I visited southern California last month, I jumped at the chance to ride along the San Gabriel River to see how Los Angeles County sustainably manages their drinking water supplies to support their growing population.
A recent defining experience for communities in California, and many other regions of the county, has been drought of an intensity that hasn’t been seen in generations. The severity of this drought has forced communities to address questions about their ability to meet their basic water needs. A common theme for many has been the critical role of a reliable supply of ground water in their ability to survive and thrive into the future.
I followed my ride along the San Gabriel with a visit to the extraordinary treatment facility operated by the Orange County Water District. Through a partnership with the Orange County Sanitation District, this facility takes highly treated wastewater and purifies it with a three-step advanced treatment process. This water is used to replenish their groundwater basin, preventing seawater intrusion and helping to supply drinking water to over 600,000 people.
I also visited the Iipay Nation of Santa Ysabel in San Diego County, a small tribal community that is facing a diminished ground water supply. Chairman Perez and members of the Tribal leadership described their efforts toward water conservation, leak detection and repair, and identifying new drinking water supplies to support the needs of their Tribal members.
Communities large and small are taking on the challenge of ensuring a reliable water supply. Clean ground water will play a vital role in their long term solution, as it currently does every day for over 100 million Americans.
These communities make clear that effective groundwater management will play a central role in keeping our communities healthy. During National Groundwater Awareness Week (March 8-14, 2015) let’s take time to celebrate all the great work across the country that is being done to protect our nation’s groundwater, so that communities can rely on this precious, limited resource now and in the future.
About the author: Peter Grevatt, Ph.D. is the director of EPA’s Office of Ground Water and Drinking Water.