Samsung Electronics Co’s semiconductor factory in Austin, Texas, spilled acidic waste for months, killing aquatic life in a tributary nearby, a probe showed. The amount of acidic waste that entered the tributary is unknown, and there is “no measurable impact” to water chemistry and aquatic life further downstream in the Harris Branch Creek, according to a January 27 memorandum by the city’s Watershed Protection Department sent to Austin’s mayor and city council. The company discovered a release of “industrial waste water” that entered its stormwater collection pond on January 14, it said in a statement. It immediately stopped the release...