Answered: y about the global use of ground water…

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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Compute the WQI (water quality index) for a water stream with the characteristics described below using the weighted linear sum approach by using the WQI link ( https://water-research.net/index.php/water-treatment/water-monitoring/monitoring-the-quality-of-surfacewaters ) Dissolved oxygen: 85 % saturation Fecal coliforms: 1000/100 mL pH: 6.95 BOD5: 25 mg/L Nitrates: 15 mg/L Total phosphates: 2 mg/L Temperature deviation: +1.00C Turbidity: 10 NTU Total solids: 250 mg/L What is the descriptor for the surface water body? Briefly comment on your results. Based on the tool output, which are the tree factors that currently are more detrimental to water quality? NOTE: I calculated the WQI using the link, WQI=56. Please check.
Problem 3 The table below contains the data for a one-hour unit hydrograph. Time Q (hr) (cfs/in) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0 145 246 359 979 432 246 134 65 32 0 (a) Determine the area of the watershed to which this unit hydrograph corresponds. Report your answer in acres. (b) Assume a very intense 3-hour storm occurs shortly after a rainy period, so the ground is very saturated. The runoff from the first one-hour interval of the storm totals 0.5 in., the runoff from the second one-hour interval is 2.5 in, and the runoff from the third one-hour interval totals 1.7 in. The baseflow during and after the storm is 80 cfs. Derive the storm hydrograph for this 3-hour storm. table that clearly indicates how you used the unit hydrograph, sample calculations Provide a with sufficient explanation, explanatory sketches, and a graph of the storm hydrograph. (c) Determine the peak discharge that will occur in the river if this 3-hour storm occurs.

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y about the global use of ground water Discuss the use of ground water in south africa and also provide national data and speci