A city with a population of 20,000 has anarea of 1400 acres, of which 200 ac arezoned commercial, and 200 acres arezoned industrial. The average waterconsumption is 150 gpcd and 70% of thiswater reaches the sewers. On the basis ofsewer gaging's, the average flow from thecommercial area is 200,000 gpd and thepeaking factor is 1.75. Using an industrialallowance of 5000gal/acre/day with apeaking factor of 1.8 and an infiltrationpeaking factor of 1.6, estimate the averageand peak wastewater flow rates. Also,determine the overall peaking factor.

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Answered: estimate the average flow rates. Also,

Engineering

Civil Engineering

estimate the average flow rates. Also,

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.

Question

A city with a population of 20,000 has an
area of 1400 acres, of which 200 ac are
zoned commercial, and 200 acres are
zoned industrial. The average water
consumption is 150 gpcd and 70% of this
water reaches the sewers. On the basis of
sewer gaging's, the average flow from the
commercial area is 200,000 gpd and the
peaking factor is 1.75. Using an industrial
allowance of 5000gal/acre/day with a
peaking factor of 1.8 and an infiltration
peaking factor of 1.6, estimate the average
and peak wastewater flow rates. Also,
determine the overall peaking factor.

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