In addition, Glendale's surface water sources are delivered via miles of uncovered canals. The sunlight warms water in these relatively shallow canals to a level much higher than is commonly encountered in more northern states. Also, in some older homes, the water runs through copper pipes in the attic which heats the water up even more. I've heard that Glendale's water sometimes has high nitrates. Glendale's water meets all federal and state standards for drinking water, including the standard for nitrates.
Nitrates can cause an illness called methemoglobinemia in infants.
The city uses three different sources for its water supply. You may occasionally receive your water from a source that you are not normally accustomed to, causing a noticeable difference in taste. The water you receive from any of the three sources meets all state and federal standards. The city is required to chlorinate the water to kill disease-causing microorganisms and you may occasionally pick up the taste and odor of chlorine. Salt content contributes to the taste and odor of water.