Some city water treatment facilities combine storm water and sanitary sewage systems.During heavy storms,these treatment facilities may be overwhelmed with water,and untreated storm water mixes with sewage and flows directly back into the streams and rivers where treated water usually returns.What might be the best way to address this problem?

Question

Quizplus · Accepted Answer

Collecting and treating storm sewer and sanitary sewage systems separately would prevent overwhelming the treatment facilities during heavy storms and would reduce the amount of untreated water flowing into streams and rivers. Option A is not practical as it would cause flooding on the roads. Option C would still result in untreated sewage reaching the streams and rivers. Option D is not a feasible solution as sewer water is not suitable for consumption.

Some City Water Treatment Facilities Combine Storm Water and Sanitary