The furnishing of a performance guaranty in favor
of the municipality in an amount not to exceed 120% of the cost of
installation for improvements it may deem necessary or appropriate.
Ten percent of the amount of the performance guaranty shall be cash.
Improvements shall include streets, grading, pavement, gutters, curbs,
sidewalks, streetlighting, shade trees, surveyor's monuments, as shown
on the final map and required by the Map Filing Law, P.L. 1960, c.
141 (N.J.S.A. 46:26B-1 et seq.), 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, in the case of site plans only, other on-site improvements
and landscaping.