Water – how to get it when you want it, keep it until you need it and survive on what you have is one of the oldest and most fundamental challenges of human civilizations. In San Diego, many of us probably don’t think about the vast network of pipes, canals, and reservoirs that snake out behind our taps to move water hundreds of miles – crossing mountain ranges, the Central Valley, and several large urban areas before flowing out of our taps. But the certainty of our water supply is increasingly being called into question.
Clearly, we are not the first group of people to face these troubles. Our neighbors to the south apparently figured it out a long time ago. Recently, archeologists working in Mexico discovered a 1,500-year-old water reservoir the size of a soccer field in the middle of the Mexican rainforest. While large ancient reservoirs have been found before in Mexico, the Mayans who built this one apparently figured out a clever way to help ensure that the water lasted – the floor of this reservoir was lined with ceramic shards, which helped seal the reservoir. In this way, the ancient Mayans managed to locally capture and store water for a population of at least 2,000 through the 3-month dry season.
Now, most of us are not going to run out to convert our backyard swimming pools into our own local water supplies. But, we can capture water on a smaller scale right in our own backyard. Backyard rain barrels or cisterns are a great way to help reduce our reliance on imported water and help reduce the impacts of urban runoff at the same time. And now the County of San Diego will help you do it! On September 26, the County of San Diego will host a Rain Barrel Outreach and Sales event at the Fallbrook Village Square from 9 a.m. – 1 p.m. For more information, check out our Green In San Diego calendar.