Agenda - Council - 07/22/1997 - Laserfiche WebLink

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I I I I I I I I I I I I I I I I I I Mr, Ryan Schroeder Page 2 July 8, 1997 The State does not have a specific guide which indicates a threshold for significant impacts. We, thus, have relied many times on DOT's Order 5050.4A for reviewing whether significant thresholds may be reached. A brief summary of the thresholds in 5050.4A for the arguments set forth in the petition is provided for your information. Wetlands "A proposal is considered to affect wet/ands if it would involve development in a wet/ands area; involve dredging, filling, draining, channelizing, diking, impounding, or otherwise directly impact a wetlands area; involve disturbing the water tame of an area in which a wet/and lies; or indirectly affect a wet/and by impacting regions upstream or downstream or inducing secondary development." With respect to indirect impacts, the effects on water quality, water supply and recharge capability, interference with surface and subsurface water courses, siltation and sedimentation, flood and storm hazards, and biotic community disruption are usually addressed through the implementation of best management practices (BMP's) and stormwater management requirements. Particular concerns would typically be addressed in a developer's agreement. Bioti~; Communities "/f the proposal would impact only man-dominated areas such as previously disturbed property, populated areas or farm/and; it may be assumed that there would be no significant impact on biotic communities. /f the proposal involves the removal of a sizeable amount of habitat which supports rare species, or of a sma//, sensitive tract but the accompanying loss of p/ant communities and development of wildlife do not result in a significant long term loss to the area, it may be assumed that there would be no significant impact on biotic communities. /nput from state and local review and other informal coordination as .necessary is to be used to determine the significance of the impacts." Rare and Endangered Species or Threatened "/f no rare or endangered species are present, it may be assumed that there would be no significant impact. /f endangered or threatened species may be present in the area affected by the proposed action, a biological assessment shaft be prepared to identify whether the species or critical habitat are likely to be affected by the action and what those effects would be. /f the biological assessment indicates no adverse effects on the species or critical habitat, it may be assumed that there would be no significant impact." Hakanson Anderson Assoc., Inc.