The Maryland 2010 stormwater management regulations and design manual (effective in May, 2010) includes strict provisions on sites that are being redeveloped. Also, the mandate to use Environmental Site Design can be very challenging on infill and ultra-urban sites. Many believe this encourages less redevelopment – and consequently more development of previously undeveloped sites leading to continued sprawl which is not supportive of Maryland’s Smart Growth policies.
The Maryland Association of Counties is holding a forum to discuss these issues. read it here: http://conduitstreet.mdcounties.org/tag/stormwater-management/
Our opinion? We believe some relatively minor changes to the design manual – for instance allowing permeable paving on sites that may not infiltrate – would offer more opportunities for Environmental Site Design on redevelopment sites.