Minnesota Class D Water Operator Certification Practice Exam 2025 - Free Water Operator Practice Questions and Study Guide

A pH reading of 2 indicates that the water is acidic. The pH scale ranges from 0 to 14, where values below 7 signify acidity, 7 is neutral, and values above 7 indicate basicity or alkalinity. A pH of 2 is significantly lower than the neutral point of 7, which means the concentration of hydrogen ions is very high, and this high concentration is characteristic of acidic substances. In practical terms, solutions with a pH of 2 can be highly corrosive and can have detrimental effects on materials and living organisms if not handled properly. This understanding of pH levels is essential for water quality management and treatment in a water operator's role.