Contamination from the cement grout leaking into the filter pack may be indicated by which measurement?

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Multiple Choice

Contamination from the cement grout leaking into the filter pack may be indicated by which measurement?

Explanation:
Cement grout is highly alkaline, and when it leaks into the filter pack its lime content dissolves and raises the surrounding water’s pH dramatically. That strong alkalinity shows up as a high pH reading, which is a direct clue that grout intrusion has occurred in the filter pack. The other cues aren’t as specific to grout: low pH would indicate acidity, not grout leakage; high conductivity can happen with many dissolved substances but isn’t as definitive for grout; odor isn’t a reliable indicator of cement contamination. So a high pH is the best signal of grout entering the filter pack.

Cement grout is highly alkaline, and when it leaks into the filter pack its lime content dissolves and raises the surrounding water’s pH dramatically. That strong alkalinity shows up as a high pH reading, which is a direct clue that grout intrusion has occurred in the filter pack. The other cues aren’t as specific to grout: low pH would indicate acidity, not grout leakage; high conductivity can happen with many dissolved substances but isn’t as definitive for grout; odor isn’t a reliable indicator of cement contamination. So a high pH is the best signal of grout entering the filter pack.

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