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� <br /> 6.3.1 Threshold ' <br /> New mining activities are not addressed in thie SEPA review. <br /> Section 7: EYVIROIVMENTAL HEALTII <br /> 7.1 NOISE ' <br /> i <br /> 7.1.1 Threshold ! <br /> � <br /> I <br /> A!I dr.vclopment in Gverett must be in canforma�ce�vith the requirements of E��IC 20.08, the Noise Control` <br /> Ordiunncz. Noise studies may be required to detarmine i(a proposal is in conformance•.vitti the ordinance. <br /> �ngine run-up noise is exec�pt during daytime hours Crom Qic Ciry and County noise rcguiations,but can result in <br /> significant short-term noise levels ia residential arcas. Boeing is pe�mined to add additional engine run-up st�tions <br /> provided a noise study is completed which documents that noise levels will not exceed those established in the 1991 <br /> GIS for thc aoeing Gxpansion. <br /> Other than noted above, any use that is exempt or partially exempt from EMC 20.08 and that exceeds the standards <br /> in EM�20.08, including new jet engine run-up stations, must submit additional SBPA analysis of noise impacts. <br /> "fhe City's Responsible Official may impose conditirnis to mitiga;e impacts beyond that required in the noise <br /> ordinancc. <br /> 7.1.3 Niitigation Alcasures <br /> l. \1'arning devices on vehicles(back up bcepers)are exempt from the City's nuise ordinance, but are perceived as <br /> irritating by most peop�e. Developments that abut residential zones must be desiened to shield vehicle <br /> m:meuvering and loading areas from residential areas by placement of buildings, benns,etc. (SEPA <br /> I�irvironmental liealth Policies) <br /> 7.2 TOXIC/IiA7,ARDOUS MATGRL�LS A�D E\PLOSIVES <br /> 7.2.1 Threshuld <br /> Additiunal S�PA analysis is rcquired for dean-up of contaminated sites. <br /> %.2.3 �'litigation i\lcasin�cs <br /> Cunstrcction Phasr <br /> I. Construction equipment and vehicles must be maintained so they do not leak fucls or luuricants. During <br /> constniction, a staging area must be specitied for all vehicle mainrenance activities. The staging area mus[be -- <br /> located «ell away from all drainage courses. Nhere possible, nll storm�aarer&om related mainrenance areru <br /> must be dirccted tu thc sanitary se�ver,rather thxn the srorm�eat.r s}�stem. (SGPA Earth, Water and <br /> C-nvironmcntal I!ealth Policies) <br /> 3. During constru.tion activities, all spills uf'fuel and haz�rdeus materials must be wnmined and removed in such <br /> a manner as[o pre�•ent dieir entering the waters snd soils of the State. Cleanup of spills musc take precedence <br /> uver other wark on site. (SI I'A Earth, N'ater and Environmental Health Policies) <br /> 13 <br /> ; ,;' <br /> i <br />