A performance guaranty in favor of the municipality
in an amount not to exceed 120%, 10% of which shall be in cash, of
the cost of installation for improvements if deemed necessary or appropriate,
including streets, grading, pavement, gutters, curbs, sidewalks, streetlighting,
shade trees, surveyor's monuments, water mains, culverts, storm sewers,
sanitary sewers or other means of sewage disposal, drainage structures,
erosion control and sedimentation control devices, public improvements
of open space and other on-site improvements and landscaping.