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Wetland Delineation Report Ramsey Station November 25, 2002 — Revised March 14, 2003 groundwater interaction. Results of the study indicated the wetlands at and adjacent to the site were groundwater fed. From 1997 to present, aerial photo interpretation indicate these wetlands on and adjacent to the RTC site were consistently loosing hydrology and eventually, open water features and wetland areas previously observed prior to 1996 could not be observed to the same extent in 2000 aerial photos or in the 2002 field delineation study. The changes in the site hydrology are complex and resulted in a dispute over whether conditions existed to identify Wetland E as a jurisdictional wetland. In order to resolve this issue, a meeting with the Technical Evaluation Panel (l'EP) was held to discuss alternative methodologies to determine if wetland hydrology existed. The 1EP approved a methodology to delineate wetland conditions based upon the historical aerial record. Although wetland conditions have appeared to significantly change after 1996, the '1'EP's methodology included aerial photo interpretation including the photos prior to 1996 during normal years of precipitation. Based upon this data it is likely that the l'EP's delineation methodology of Wetland E identified in this report may not be observed in the field since the hydrologic record has been modified post 1997. Due to the changed hydrologic conditions observed after 1997, the wetland is identified as a Type 1 seasonal flooded wetland. WETLAND TYPE CLASSIFICATION (USFWS Circular 39 Classification System): Table 4 provides a listing of wetland types encountered in the field. Wetland types are classified in accordance with the US Fish and Wildlife Services publication Wetlands of the United States, FWS Circular 39. Table 4: FWS Circular 39 Classification of Wetlands Wetland Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 Type 7 Type 8 Acreage* A 40% 60% 0.72 acres B 5% 15% 80% 1.18 acres C 50% 50% 0.20 acres D 90% 10% 2.23 acres E 100% 8.13 acres Total 12.46 acres * - Calcu. ated by blobal Positioning System. Wetland and upland datasheets are provided in Appendix G (except for Wetland E, which utilized an alternative methodology). Acreage estimates are based upon closed wetland loops. When a wetland crosses a property line without closing the loop, the wetland is calculated to the property line, even though the wetland may be larger in area. Any questions associated with this wetland delineation report can be directed to North American Wetland Engineering at (651)-433-2115. Page 6 of 52