Chemicals that may form when disinfectants (such as chlorine), react with plant matter and other naturally occurring materials in the water. These byproducts may pose health risks in drinking water.
Disinfectant Byproducts
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Chemicals that may form when disinfectants (such as chlorine), react with plant matter and other naturally occurring materials in the water. These byproducts may pose health risks in drinking water.
Other than tree shaped and grid designs, distribution systems are usually laid out in which of the following patterns?
A | Horizontal lines that flow into underground sumps then back into a closed pipe |
B | Vertical designs without backflow prevention devices |
C | Loops and/or circular designs |
D | Horizontal lines flowing into open detention ponds then back into a closed pipe |
Sample test question:
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