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STONEY CREEK SMALL AREA PLAN RURAL CHARACTER DESIGN SCENARIO PRELIMINARY IMPACT ASSESSMENT Developing an impact assessment for the Rural Character design alternative was complicated by the difficulty in comparing this alternative to the previous designs. The previous three design alternatives (Conventional -II, Density - Neutral and Neo- Traditional) were evaluated in an ordinal manner against each other, and therefore do not relate to the Rural Character alternative. Likewise, the Rural Character impact rankings are difficult to compare to the previous "internal' comparisons. In some cases, comparing the Rural Character alternative to the previous three alternatives is an "apples to oranges" comparison. For these reasons, and the fact that impacts will be evaluated in detail when the final plan is produced, the Rural Character impact assessment is presented in brief narrative form, with an updated summary table. Much of the basic information regarding impact evaluation and significance is covered in detail in the appendix of the students' report, and therefore is not rehashed here. While there are some differences in what impacts are measured against, the previously -used categories of impacts and the methodology of evaluating impacts have been retained for comparison purposes (where such comparisons can be made). Below is the Summary of Impacts table presented by the students, with Rural Character impacts added.' SUMMARY OF IMPACTS ,...:.:.; ........::...: .....:.:::.::::.:::.:....:... : ::.:::: :.:.. :..:...:.: ,.:. . Conventional.:.: .. . (Seenaric� ;2) I�enszt .....:< >: >:: Neuiral >.<.::< :.;:.;.:::...:. > .;::..' Teo Traditional .::.......... Character Stormwater pollution LOW LOW HIGH LOW NPS pollution LOW LOW HIGH LOW Sedimentation and Erosion LOW MEDIUM HIGH LOW to MEDIUM Wildlife Habitat MEDIUM LOW HIGH LOW Natural Character MEDIUM LOW HIGH LOW Historic Resources HIGH MEDIUM LOW LOW Water Service LOW MEDIUM HIGH MEDIUM Sewer Service NONE NONE HIGH MEDIUM Ground Water MEDIUM MEDIUM LOW MEDIUM Septic Disposal LOW MEDIUM LOW MEDIUM Transportation LOW LOW MEDIUM NOT EVAL. Air Quality LOW LOW LOW NOT EVAL. Schools MEDIUM MEDIUM HIGH MED/HIGH Public Safety MEDIUM MEDIUM HIGH MEDIUM 1 - The students ordinal level of impact (LOW /MEDIUM /HIGH) were developed relevant to the other two student alternatives, and thus are not relative to the later - developed Rural Character alternative. The Rural Character impacts shown in the table are evaluated against the status quo, rather than evaluating against a mix of the three very different student alternatives, or individual alternatives with internally - relative rankings.