The earth’s mighty shifting – which caused about $400 million in damage to Napa, Sonoma and Solano counties – also mysteriously forced groundwater to the surface and into several dry or nearly dry creeks and streams in the region. Torrents of water have been flowing down Wild Horse and Green Valley creeks and another unnamed waterway in the hills southeast of Napa and northwest of Vallejo since the Aug. 24 quake. It is a potential bonanza for drought-plagued Vallejo, which built an emergency pipeline from Lake Berryessa in the spring after officials learned that their supply of Sacramento-San Joaquin River Delta water was being cut off. Read more via SFGate