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Lawn/Landscaping Short grasses on upland soils <br />Short grasses and mixed trees with 11-25 % impervious <br />cover <br />Short grasses and mixed trees with 26-50% impervious <br />cover <br />Impervious Surface Buildings and pavement with 91-100% impervious cover <br />Pavement with 91-100% impervious cover <br />The division of the Arden Hills parcel into these diffe ;�" ategories was based <br />on analysis of aerial photography. Without data from IVILCCS, this method of <br />attributing categories based on best known information is acceptable but will <br />produce general differences in previous esb . ates. The MLCCS data for the <br />�� °. � <br />Roseville parcel can be assumed to be more accurate tha�o information available <br />�� <br />when land cover was addressed in the 1986 EAW. .�3 ,. <br />In addition, fhe land cover categories designated by the State��u� �nnesota for <br />��� <br />EAWs have changed befween 1986 and 2007. In 1986, the EAVii-: ",�n did not <br />have a lawn/landscaping category. It is understandable then, that�he numbers <br />of acres for the categories would be different. The total acreage amount is also <br />different between 1986 �1,� d 2007. However, with the more detailed technologies <br />and information avarlabj�' '_' the estimates are more accurate and based on <br />public data available fra� -�` ounty and the Minnesota DNR. <br />The land cover numbers <br />totals in th�0�i��EAW. <br />Types 1-8 wetlands <br />Wooded/forest <br />Brush/Grassland <br />Cropland <br />Lawn/landscapi : ' <br />Impervious surfac <br />Other <br />TOTAL <br />.75 <br />0. 00 <br />25. 01 <br />21. 84 <br />0. 00 <br />94.64 <br />been revised to reconcile the before and after <br />d caver estimafes are as follows: <br />(Revised) <br />After <br />17.75 <br />5.20 <br />2.28 <br />0.00 <br />23. 76 <br />25.65 <br />0.00 <br />94.64 <br />3. Comment: The stormwater plan identifies several areas for stormwater ponds <br />that are currently wooded. Does this mean that more woods will be removed <br />than was noted in Item #10? Will the replacement tree measure the same <br />caliper inches as the original tree removed? <br />Response: The exact location of new stormwater ponds has not been identified <br />because final design has not been completed. However, the Stormwater <br />Management Study did identify severa/ potential placements for new stormwater <br />ponds or the expansion of existing ponds based on the need for additional rate <br />control and water quality measures as wou/d like/y be required by the Rice <br />Creek Watershed District. The placement of these ponds could include the <br />remova/ of trees; but shou/d not significant/y change the /and cover estimates as <br />a result of pond placement. If tree removal is necessary, rep/acement trees will <br />be planted according to an approved Landscaping Plan that will be developed <br />TKDA Project No. 13529.002 Page 2 Draft Date: July 9, 2007 <br />