A groundwater supply has been designated as vulnerable to fecal contamination, and the state has specified a disinfection level of 99.99% (4.0-log) virus inactivation. The peak hourly pumping rate is 2000 gpm from the well field through a 4200-ft pipe with a 16-in diameter to a reservoir in the town. The water temperature is 10°C. A. what is the contact time in the pipeline? B. What chlorine residual is required in the water at the outlet of the pipeline?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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ation of Giardia cysts at a free chlorine residual of 1.0 mg/I, temperature of 20T, and pi
A groundwater supply has been designated as vulnerable to fecal contamination, and the state has specified a disinfection level of 99.99% (4.0-log)
virus inactivation. The peak hourly pumping rate is 2000 gpm from the well field through a 4200-ft pipe with a 16-in diameter to a reservoir in the
town. The water temperature is 10°C.
A. what is the contact time in the pipeline?
B. What chlorine residual is required in the water at the outlet of the pipeline?
nese for removal b filtration, The groundwater temperature during neak summer usage is 10°C and
Transcribed Image Text:ation of Giardia cysts at a free chlorine residual of 1.0 mg/I, temperature of 20T, and pi A groundwater supply has been designated as vulnerable to fecal contamination, and the state has specified a disinfection level of 99.99% (4.0-log) virus inactivation. The peak hourly pumping rate is 2000 gpm from the well field through a 4200-ft pipe with a 16-in diameter to a reservoir in the town. The water temperature is 10°C. A. what is the contact time in the pipeline? B. What chlorine residual is required in the water at the outlet of the pipeline? nese for removal b filtration, The groundwater temperature during neak summer usage is 10°C and
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