Changes

===Notes===

===Notes===

* Operation and maintenance cost estimates include replacement of joint stabilizing aggregate material removed by annual vacuum sweeping and assume no rehabilitation of the permeable pavement surface is required over the 50 year timeframe.

* Operation and maintenance cost estimates include replacement of joint stabilizing aggregate material removed by annual vacuum sweeping and some replacement of damaged pavers, but assume no rehabilitation of the permeable pavement surface is required to maintain acceptable drainage performance over the 50 year timeframe.

* The tool calculates costs for new (greenfield) development contexts and includes costs for contractor overhead and profit, material, delivery, labour, equipment (rental, operating and operator costs), hauling and disposal.  

* The tool calculates costs for new (greenfield) development contexts and includes costs for contractor overhead and profit, material, delivery, labour, equipment (rental, operating and operator costs), hauling and disposal.  

** Land value and equipment mobilization and demobilization costs are not included, assuming BMP construction is part of overall development site construction.

** Land value and equipment mobilization and demobilization costs are not included, assuming BMP construction is part of overall development site construction.