Primer for Municipal Wastewater Treatment Systems

Effects of Wastewater on Water Quality 5 ... Infectious micro-organisms, or pathogens, may be carried into surface and groundwater by sewage from cities and institutions, by certain kinds of industrial wastes, such as tanning and ... through cracks, particularly in older lines, and through roof and basement drains.

  Surfaces, Wastewater, Treatment, Through, Effect, Wastewater treatment, Crack, Through cracks, And through