The pH (hydrogen potential) of a water considered <u>pure</u> is 7. Since the ideal pH for consumption is between 6.5 and 8.5 (neither too alkaline nor too acidic), sothe first statement is false.
A low level of fecal coliforms indicates lower risk of contamination by various types of microorganism, allowing water to be consumed. So the second statement is true.
*A slab push is a term given to tectonic plates that cause pressure from a down-dip motion. An example of this type of plate structure is where the Nazca plate and the South American plate meet near Peru
