The impact of leaking sewers on urban groundwater
نویسنده
چکیده
Contamination of urban groundwater by sewage leakage from damaged sewers is an increasing matter of public and regulatory concern. It is estimated that in Germany several 100 million m waste water leaks every year from partly damaged sewerage systems into soil and groundwater. In many cities damaged sewerage systems are the main sources for groundwater contamination with sulphate, chloride and nitrogen compounds. Besides the ecological point of view, damaged sewerage systems exhibit essential economic problems because groundwater can also infiltrate into the sewers. This paper presents the results of comprehensive groundwater-quality studies carried out during the last 3 years in the City of Rastatt situated in the Upper Rhine Valley, Southern Germany.
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