Stoimwater and Sediment 



i) Plans for the discharge of contained waters; including the time to draw down 



from full condition, description of outlet structures; 

 ii) Maintenance plans; including maintenance schedule, an outline of responsible 



parties and all pertinent agreements to be executed to insure proper maintenance; 

 ii) An evaluation of the pollutant removal efficiency of such devices under the 



existing conditions; 



c) Areas of the site to be used or reserved for percolation including the depth to 

 seasonal groundwater table, and prediction of the impact on groundwater quality; 



d) Areas to be utilized in overland flow, the hydrologic soil type of such areas, 

 vegetation present, and the soil susceptibility to erosion; 



e) Any other information which the developer or die CRMC believes is reasonably 

 necessary for an evaluation of the development 



Submitted Stormwater Management Plans must demonstrate that the proposed 

 development or activity has been planned and designed and will be constructed and 

 maintained to meet each of the following standards (Section 320.2 C): 



1. Ensure that after development, runoff from the site or activity approximates the rate 

 of flow, volume, and timing of runoff that would have occurred following the same 

 rainfall conditions under existing conditions and, to the extent practicable, pre- 

 development conditions; 



2. Maintain the natural hydrodynamic characteristics of the watershed; 



3. Protect or improve the quality of surface and groundwaters; 



4. Protect groundwater levels; 



5. Protect the beneficial functioning of wedands as areas for the natural storage of 

 flood waters, die chemical reduction and assimilation of pollutants, and wildlife and 

 fisheries habitat; 



6. Prevent increased flooding and damage diat results from improper location, 

 construction, and design of structures; 



7. Prevent or reverse salt water intrusion; 



8. Protect the natural fluctuating levels of salinity in estuarine areas; 



9. Minimize alteration to flora and fauna and adverse impacts to fish and wildlife 

 habitat; 



10. Otherwise further the objectives of die SAM plan. 



In order to ensure attainment of die objectives of Section 320.2 , and to ensure 

 adherence to performance standards, CRMC specifies design, construction and 

 maintenance standards for stormwater systems: 



1S2 



