This graph illustrating the relative levels of water drawn from Lake Michigan per person among the Chicago North Shore suburbs shows that Lake Forest was the heaaviest user by a significant margin.  This  was approximatelly double on a per person basis the rate of Winnetka, the next heaviest.  This reflected the development of gardens, most recetnly in the 1920s, but since the first LF Water Company distributions of water from the lake in 1892. In effect, the gardeners--professional and amateur--created a microclimate in Lake Forest for their gardens in emulation of English or Long Island Sound floral gardens.  The models were Gertrude Jekyll's Munstead Wood and William Robinson's Gravetye, both in southern England.

See also: http://archon.lakeforest.edu/?p=collections/controlcard&id=66