World Triathlon wants to share a report made public on July 4th, 2024 by the City of Paris regarding water quality at the Seine River. Please note that the Triathlon and Para triathlon venue and swim course are located at Pont Alexandre III.
Seine Water Quality
The four points monitored daily and presented in this Seine water quality bulletin provide a precise indication of the microbiological quality of the water along the entire stretch of the river in Paris. They are located at the following sites:
Bercy (right bank); Bras Marie; Pont Alexandre-III – Olympic Site; Bras de Grenelle;
For each of these points, daily samples have been taken since early June and analyzed by the Eau de Paris laboratory. Two bacteria (Escherichia coli and intestinal enterococci) are being tested for.
In spite of a rather significant water flow, the Seine water quality has improved over the period, and the results are consistent with the thresholds as determined by the European directive over six days (from 24 to 29 June, 1 and 2 July for almost all sampling sites)
This positive evolution is due to the return of sunshine and warmer temperatures, and to the works carried out as part of the Seine Water Quality Improvement Plan.
Water quality degraded on Sunday 30 June as a consequence of rainfall on Saturday 30 June over the Île de France catchment, before improving again the following day.
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