Environmental scientists investigated herbicide contamination in two agricultural streams: Stream Bourne and Stream Meon. They isolated bacterial strains from sediment samples and tested their tolerance to glyphosate. The findings are as follows:

• For Stream Bourne, 48 strains were resistant to glyphosate and 17 were susceptible (killed).
• For Stream Meon, 22 strains were resistant to glyphosate and 50 were susceptible (killed).

Identify which stream is likely to have the highest level of glyphosate contamination and explain your answer using the data provided.