Jordan decided to see if acid rain was a problem in his county and if it was, where is it more prevalent. Jordan lives in an area with many ponds and lakes where people like to fish. His research revealed that waterways with a pH higher than 9.5 can be caused by acid rain and can harm fish. Jordan tested the pH of three lakes in his county once a week for two months. He always tested on Saturdays at 10 am. Here is the chart he kept in his logbook: