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EXHIBIT E I I) AMERICAN ~ ENGINEERING TESTING, INC. CONSULTANTS . GEOTECHNICAL . MATERIALS . ENVIRONMENTAL February 16, 2005 Rottlund Homes 3065 Centre Point Drive Roseville, MN 55113 Attn: J. Michael Noonan RE: Twin Lakes Redevelopment Project Roseville, Minnesota AET Project No. 03-01962 Dear Mr. Noonan: As requested, American Engineering Testing, Inc. (AET) has prepared summaries for Opportunity Areas 1 through 5 and 8 of the Twin Lakes Redevelopment Project. The attached figure shows the overall Twin Lakes Area Redevelopment Project as well as the configuration of each of the Opportunity Areas. The summaries are attached. The summaries include brief descriptions of each Opportunity Area, the environmental assessments that have been performed for each Area, environmental conditions identified for each Area, and additional environmental assessments to be performed. You also requested that we provide an approximate cost analysis for environmental remediation at each of the Opportunity Areas. The estimates of probable costs associated with environmental remediation for Opportunity Areas 2 and 4 are presented below. It is important to note that additional assessment is recommended in all of the Areas and the results of the additional assessments will impact final costs, as will the final design (layout, grades, below grade structures, utilities, ponds, parking surfaces, etc.) of the Twin Lakes Area Redevelopment Project. Final design information, when available, should be incorporated with additional environmental assessments to be performed. Environmental cleanup will be performed in accordance with a risk based approach based on proposed property use. Cleanup performed in residential areas will be to higher standards than cleanup performed in non-residential areas. The soil remediation technique will likely include excavation and disposal of the more impacted soils at an appropriate off-site disposal facility, i.e., at a landfill. The less impacted soils will be re-used on site below structures, pavement surfaces, etc. in non-residential areas. Other remediation techniques, such as bioremediation, may also be considered. The estimated costs for environmental remediation presented in the table below are based on environmental information currently available in Opportunity Areas 2 and 4. The estimates will need to be modified after the additional information becomes available. This document shall not be reproduced, except In full, without written approval of American Engineering Testing, Inc. 550 Cleveland Avenue North. St. Paul, MN 55114.651-659-9001 . Fax 651-659--1379 Duluth. Mankalo . Marshall. Rochester. Wausau . Rapid City . Pierre. Sioux Falls AN AFFIRMATIVE ACTION AND EQUAL OppORTUNITY EMPLOYER