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1. Earth <br /> a. General description of the site: <br /> (circle one)4IB,rolling, hilly, steep slopes, mountainous, other <br /> b. What is the steepest slope on the site (approximate percent slope)? <br /> 10% <br /> c. What general types of soils are found on the site (for example, clay, sand, gravel, peat, <br /> muck)? If you know the classification of agricultural soils, specify them and note any <br /> agricultural land of long-term commercial significance and whether the proposal results in <br /> removing any of these soils. <br /> Alderwood-Urban Land complex soils are onsite, and they are hydrological class "C". <br /> d. Are there surface indications or history of unstable soils in the immediate vicinity? If so, <br /> describe. <br /> None, to the best of our knowledge. <br /> e. Describe the purpose, type, total area, and approximate quantities and total affected area of <br /> any filling, excavation, and grading proposed. Indicate source of fill. <br /> Approximatly 12,200 cubic yards will be cut, and 2,200 cubic yards will be filled. <br /> f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. <br /> Yes, the potential for on-site erosion will increase in the short-term where soils are exposed <br /> during site preparation and construction. <br /> g. About what percent of the site will be covered with impervious surfaces after project <br /> construction (for example, asphalt or buildings)? <br /> 44.5% of the developed site will be impervious surface <br /> h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: <br /> A Temporary Erosion Sedimentation control plan will be submitted to the City for approval prior <br /> to any construction activities. Construction phase erosion control typically includes the use of silt <br /> fences, hay bales, and catch basin protection provided as necessary to minimize the impacts of <br /> erosion on off-site areas and on-site systems <br /> 2. Air <br /> a. What types of emissions to the air would result from the proposal during construction, <br /> operation, and maintenance when the project is completed? If any, generally describe and <br /> give approximate quantities if known. <br /> Short Term Construction Impacts: Short-term emissions and odors would result from site <br /> preparation and construction activities. Sources of short-term emissions and odors include dust <br /> generated by grading activities and combustion emissions from heavy equipment. It is <br /> anticipated that these impacts would be minimal. <br /> Long Term Air Quality Impacts: Long-term impacts would result from increased traffic to the site, <br /> resulting in a slight increase in carbon monoxide levels. These impacts are not expected to be <br /> significant. <br /> SEPA Environmental checklist(WAC 197-11-960) July 2016 Page 3 of 12 <br />