West Virginia – Water Distribution

WV Bureau for Public Health
Office of Environmental Health Services
Environmental Engineering Division
350 Capitol Street, Room 313
Charleston, WV 25301-3713
Phone: 304-356-4337

Website: DHHS Operator Training and Certification

Read Water Distribution System Operator Certification Course Manual

Read Advanced Math Handbook – Class III & IV Water Operators

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Distribution Question

Water Distribution Practice Exam

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Which of the following is typically associated with trihalomethanes?

A	High levels of dissolved oxygen in raw water source
B	Water containing organics that has been chlorinated
C	High levels of iron and manganese
D	Groundwater with high levels of inorganics

Question 1 Explanation:

Disinfection by-products (DBPs), such as trihalomethanes and haloacetic acid, result from reactions between organic and inorganic matter in water with chemical treatment agents during the water disinfection process. DBPs increase with longer exposure to residual disinfectants.

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Water Terms

Water Sample
The water that is analyzed for the presence of US EPA-regulated drinking water contaminants. Depending on the regulation, US EPA requires water systems and states to take samples from source water, from water leaving the treatment facility, or from the…

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