Item A: Public Hearing onMetro Plan Amendment (Delta Sand and Gravel)

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separate standard (ORS 21S.296).applies to the minimization of conflict. with agricultural practices. Many of the minimization techniques r~ly upon excavation to ~ur in specific phiSes. .to specific levels and to proceed whe~ the existing operation has exhausted the existing supply of aggr~gate. . . . . The Planning' Commissions co~sldered each" conffict'. ex~eDt of impaet Ind the. propoled . . minimization conditions, ,eparately voting. on eacb conflict UDder St~p '3 of the Goal 5. ID'alysls. . Ordinance No. PA 1238 Exhibit C p~ovlde. the eondltlo., proposed for ID~luIIoD In.the pll. to ~llow mining' to ~Dlure eODform.~ce wlt~ .ppUe.b.~e loea!, Itate, or fedenllta'Ddardl.. . NOISE CONFLICTS. . Noise has been identified.as a discharge from' the proposed mining . area. that conflicts. with nearby resi~ential ~\lSes~ The noise producing cOmponents 'are. haul troeb, .dump trocb, and the e~cavator and front end loader that extract the gravel and transfer it into trucks that move the mataial to' the eXisting p~ facility.. The entire expansion area is. subjeCt to the noise ~ld requirements. Daly- . Standlee & ~est fuc. (DSA) an8lyzedthe future noi$eimpacts iDclusive of the ambienfnoise .from.the existing adjacent processing o~tion 'owned by the applicant. .~ applicants noise.study . was amended in resPonse to public.concerns raised at. the Planning Commission hearing:that some . .additional residential developm~t had occurred in the .impact area.that was not .included in the original analY$is~ DSA ~ted the no~e .ct au8lysis,' and determined that Without mitiption, DEQ noise standards would be exceeded at the residences oD.'site owned. by the applicant, and appro~ uses within the noise ~t boundary could also be'affected, but the.proposed.mi~imi~tion for the zones adequately reduces.the Conniet toacCeptabl~ levels. .The revi~ ~ysis ancl ione ofimpact.1D8J? is in Exhibit 49. . . Exhibits ~ reportS by Arthur Noxon, SCRO affiliated AcoustiCal Engineer raises 'issues with the . .tudymethodology performed by DSA Dick Ruth; in E_1t 61, respOnds to the technical aspects of ~e opposin~ arguritents regarding the ri1~logy used "by DSA. Minimi~tion of Noise Conflicts - A~ by DEQ Noise Regulatioos.of OAR 340-3S-03S. The analysis'. ~ed the ~~e restrictive DEQ .stand8rds for new" ~ 'in both the allowable statistical noise limits cat~gory and ambient degradation limit category. Historica11Yt DEQ did ~t requiretbis level of ." compliance for the extension of quarries hito contiguous ireas. The applicant proposes. ~e predicted noise cui be re<luced by the a1t~te mining procedures shown on P A -1238 '~bit C #1 - #12.. to levels that would confonn to the applicable' DBQ standards. by the developtnent of ~ in ~es, liDiiting the use of noise. produCing equipmeJit, and limiting ~e .hours of operatiOlL . . Both PIaDDiDa CommlsiioDl fOUD~ ,,"o.sly that ~ere II a eoutUet due. to Dolse. . " . They' bOth. votedtbe DOUe eonOlet eould be mlnlml7,ed t~ .. level thatmeetl Ute state DEQ '.taDda'rd. The Lane County PlaDDlag .Commlslio~.vote was 3-2, "'tht .blteD~On, aDd ~e:, . EUle~e.PlaDDing Commission vote waI3-1~ " DUST CONFLICTS". . . , 'Dust is .identified.as a discharge from the prop~sed expansion.area that oonflictswith nearby residents and negatively impacts. farming activities. The applicants dust Study, Air ~iv Evaluati~n (Exhibit . G in the Application) contains det8i1s ~egarding the dust..impac~' to be expected from the operation. . . DuSt. con~icts come from overbur4en'. removal, .aggregate extraction;" and truck traffic on haul roads . . f!om the expansion area to the processing plant on ~e existing a~ved operation. . . .. BoardICouncil H~g - Ordinance N~. PA 1~8 Aae.oda Cover Memo Delta Saod &9ravel Bxpaasion