Leaks from a petroleum storage plant have contaminated the land and befouled drinking water under San Diego’s Qualcomm Stadium for decades, the city claims in lawsuit against Kinder Morgan. The Tuesday lawsuit in Superior Court accuses Houston-based Kinder Morgan Energy Partners and affiliates of dumping “hundreds of thousands of gallons of dangerous poisons and harmful chemicals into drinking water which otherwise would be available to serve the growing needs of San Diegans.” Years ago, the city used the aquifer beneath the stadium site for drinking water, and it wants to do so again.