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I I I I I I I I I I I I I I I I I I I Improvements to the site will not require significant grading. The site has already been mass graded as part of improvements approved in the spring of 2000. An erosion control plan was approved by the Watershed District for the property. Describe any steep slopes or highly erodable soils and identify them on the site map. No steep slopes are located on the property. Minimal potential for problem erosion exists. The Veritas site and restaurant have been graded to pad elevations, grading, utility, street and drainage pond construction has been completed. The earthwork required to final grade the site will be minimal. It is anticipated that during site grading, existing topsoil will be stockpiled and later re-applied in the landscape areas. The remaining ground will need to be adjusted to final grade with proper soil preparation to support the buildings and parking lots. Describe the erosion and sedimentation measures to be used during and after construction of the project. Standard practices for erosion control will be followed for this site. Anticipated BMP's are: Rock Entrance to minimize soil tracking on the roadways from vehicle traffic; silt fence / hay bale interception to keep silt and fine soils from eroding off-site and onto hard surfaces; storm sewer inlets will be screened to minimize the loss of soil into the existing and proposed storm structures. Infiltration basins will be constructed for stormwater infiltration. During construction, these infiltration basins will collect sediments, until site vegetation is established. Final grading plans will meet or exceed the Rice Creek Watershed District requirements for erosion control. 18. Water Quality - Surface Water Runoff: a. Compare the quantity and quality of site runoff before and after the project. Describe methods to be used to manage and/or treat runoff. The Centre Pointe Business Park has been developed with sites meeting the Business Park PUD requirement of 25% green space. The 1997 EA W was developed assuming that 25% of the developed area would be green space. The proposed improvements to the Veritas site will result in approximately 28% of the site reserved as green space. The increased green space will result in a reduction of the quantity of surface runoff from this site and ultimately reduce the total runoff identified in the 1997 EA W from the Page 16