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2. Air ilk,1l,i <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 /> No air emissions are anticipated during this project with the exception of normal construction <br /> equipment exhaust, and potential minor fuel vapors during removal of the USTs. Hydrocarbon <br /> vapors might be emitted from tank backfill materials in the excavation as the tanks are removed. <br /> However, the primary environmental issue at this Site is relatively low concentrations of gasoline <br /> and diesel fuel in groundwater, which will be treated in-situ as part of Site remediation no <br /> included in this removal project. Concentrations in water have historically been up to 4 ppm <br /> diesel and <1 ppm gasoline, with minor amounts of benzene. No significant excavation of <br /> contaminated soil is anticipated for this project. <br /> b. Are there any off-site sources of emissions or odor that may affect your proposal? If so, <br /> generally describe. <br /> c. Proposed measures to reduce or control emissions or other impacts to air, if any: <br /> No controls planned at this time. <br /> 3. Water (helpl <br /> a. Surface Water: jhelpl <br /> 1) Is there any surface water body on or in the immediate vicinity of the site (including <br /> year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe <br /> type and provide names. If appropriate, state what stream or river it flows into. <br /> 2) Will the project require any work over, in, or adjacent to (within 200 feet) the described <br /> waters? If yes, please describe and attach available plans. <br /> 3) Estimate the amount of fill and dredge material that would be placed in or removed <br /> from surface water or wetlands and indicate the area of the site that would be affected. <br /> Indicate the source of fill material. <br /> 4) Will the proposal require surface water withdrawals or diversions? Give general <br /> description, purpose, and approximate quantities if known. <br /> SEPA Environmental checklist(WAC 197-11-960) July 2016 Page 5 of 16 <br />