New State Initiatives 



As a basis, categorize the development types by specific factors related to expected 

 runoff and erosion, including: typical area of paved parking, typical area of storage, 

 sidewalks, playgrounds, etc., and typical roof area. (These factors are available in the 

 literature and are used in regulations applied in other states. See, for example, Wisconsin.) 



Provide adjustment factors to be used in deriving applicability of various standards. 

 These factors would include, for example, slope, availability of buffer zones of specified 

 dimensions, slope and soil characteristics of the buffer zone, percent and type of vegetative 

 cover on the site and in the buffer zone, etc. 



As a companion to the categorization, include lists of typical contaminants contained in 

 rtinoff and sediment from the land use categories considered. List example concentrations 

 for first-flush one inch runoff for selected storm intervals. 



Stormwater Management and Sediment and Erosion Control Plans 



General Requirements 



***Require submission of Integrated Stormwater Management and Erosion 

 and Sediment Control Plans on all applicable properties, to be developed as 

 part of the site planning process. The specified plan format should be developed so 

 as to include the following elements: 



• applicability determination 



• clear map of pre-construction site conditions and post-development proposed site 

 conditions 



• site construction plan 



• complete description of pathway by which decisions have been made regarding 

 design of control practices and measures, including: 



-calculations methods applied, and summary of calculations 



-how design criteria, standards and specifications for control measures have been 



achieved 

 -extenuating circumstances at issue, and any resulting requests for variances or 



special exceptions 



• complete description of preventive control measures to be applied, and schedule for 

 maintenance of preventive measures 



• practice/control measure specifications and installation schedules for the following 

 site-specific control elements: 



Erosion Control 



a) site dewatering 



b) waste and material disposal 



c) tracking 



d) drain mlet protection 



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