Local residents are invited to hear the Putah Creek Council’s second CreekSpeak talk of 2014, “Ground Water and Life” by Thomas Harter, at 7 p.m. Thursday, June 19, at the Winters Library, 708 Railroad Ave.
When you think of fresh water, you probably think of water you can easily see — water that is on the surface of the Earth and flows downhill in streams such as Putah Creek. Surface water in streams accounts for about one-third of 1 percent of the fresh water on the planet — a tiny fraction, indeed.
Harter will discuss ground water — which makes up 30 percent of the Earth’s fresh water — and how to protect it from pollution. Ground water is hard to see and measure, but it’s a critical water resource, especially in the Central Valley, which relies heavily on ground water for residential drinking water and agricultural use.
Harter is nationally renowned for his expertise in ground-water quality protection and management. His talk will cover topics such as the connection between surface and ground water, nitrates in ground water and how they get there, disadvantaged communities, agriculture, individual food choices and how ground-water pollution impacts residents of Yolo County.
CreekSpeak is Putah Creek Council’s six-month series of community talks about the nature, culture and history of our region. Talks are free to Putah Creek Council members and open to the public. A $5 donation is requested from those who have not yet joined the council.