A small grove of redwood trees in Costa Mesa pays tribute to the forest that once grew in the area. Hidden deep below is an invaluable water resource to the community. “It’s pure, pristine, it has no manmade influence in it, so it’s the best source of water that we have,” said Mesa Water District General Manager Paul Shoenberger. The Mesa Water Reliability facility pumps up water that Shoenberger said dates back more than 12,000 years.