Respuesta :
A correct answer is an option (B). people living downriver of these cities were more likely to experience contamination of their drinking water sources.
Stormwater is rainwater that runs off of surfaces like highways, roof tiles, and other structures without being absorbed by the ground. Because it contains pollutants such as heavy metals, bacteria, oil from vehicle oil spills, sediments, and nutrients, this water runoff is hazardous.
To maximize infiltration during rainstorms and decrease discharge to stormwater drains or sewage systems, a variety of stormwater management measures (SCMs) are used. One of the most popular ways to collect stormwater is via stormwater basins, which come in a variety of forms.
While other designs employ natural soil, this design uses a basin and a lower surface retention chamber with perforated pipes and gravel to store water. Even though a lot of grass has been mowed, some basins have wetland plants to assist keep the water from drying out, while other basins are completely dry.
Using low-cost monitoring approaches, it may be possible to solve some problems with stormwater control that are related to physical performance (not water quality). Low-cost monitoring is a good starting point even though it doesn't offer much quantitative data on performance. If necessary, follow-up can be carried out using intensive and detailed cost monitoring.
The complete question is:
About one hundred years ago, cities began to address the problems of sewage disposal by dumping sewage into stormwater drainage systems. One of the results of this strategy was that Select one:
a. people living upriver of these cities were more likely to experience contamination of their drinking water sources.
b. people living downriver of these cities were more likely to experience contamination of their drinking water sources.
c. cities no longer needed to treat drinking water that was drawn from nearby river systems.
d. the quality of the water in the local rivers and streams greatly improved.
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