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Minimization of conflicts – Dust - addressed by DEQ Emissions Standards applied by Lane Regional <br />Air Pollution Authority (LRAPA) through an Air Contaminant Discharge Permit (ACDP): <br /> Visible Air Contaminant Limitation (LRAPA 32-010) <br /> Particulate Matter Weight Standards (LRAPA 32-015) <br /> Particulate Matter Size Standard (LRAPA 32-055) <br /> Other Emissions (LRAPA 32-090) <br /> Rules for Fugitive Emissions (LRAPA 48-015) <br /> This PAPA is for future mining of an adjacent expansion site. Delta’s processing operation directly <br />east of the expansion site operates under a current LRAPA permit (No. 20119). If approved, the <br />proposed future mining expansion area will be added to the existing permit and compliance <br />requirements will be updated to include the expansion area and conduct operations in a manner that <br />complies with the applicable standards under the existing authorized permit. The existing operation is <br />not under review in this PAPA application. <br /> <br /> The submittals from the SCRO raises issue with the dust impact analysis and with the trustability of the <br />applicant to meet the LRAPA requirements. LRAPA past violations are included in the written record. <br />Additionally, some of the neighboring residents have health issues that are exacerbated by poor air <br />quality, asthma and breathing problems and have raised that issue. The analysis conducted by <br />Bridgewater models a conservative approach to the predicted conflict. The Planning Commissions had <br />concerns about lack of analysis of additional impacts from dust if the setback variance request to <br />complete a low permeability barrier (aquaclude) was granted. The location of the aquaclude and <br />methodology for completion was considered to be a large factor in the determination of impacts for this <br />conflict. See PA1238 Exhibit ‘C’, Conditions #13- #21 for dust minimization conditions proposed by <br />the applicant. <br /> <br /> Both of the Planning Commissions found unanimously that there is a conflict due to dust, and <br />that the conflict due to dust could not be minim ized to a level that meets the DEQ emission <br />standards applied by LRAPA. Neither planning commission conducted further ESEE analysis <br />because none had been provided by the applicant. <br /> <br /> Lane County Planning Commission voted 3-2 with one abstention, and Eugene Planning <br />Commission voted 3-2 that the conflict could not be minimized. <br /> <br /> <br /> <br />FLOODING CONFLICTS <br /> The Lane County Flood Hazard requirements are found in Lane Code 16.244 Floodplain Combining <br />Zone. Refer to applicant’s submittal Evaluation of Potential Flood Impact (Exhibit H) The applicant <br />describes how all activity will be below ground and not affect the base flood level. Federal Emergency <br />Management Agency requirements as implemented by Lane County in Lane Code 16.244(7)(c)(ii): <br />“Where base flood elevations have been provided but floodways have not, the cumulative effect of any <br />proposed development, when combined with all other existing and anticipated development, shall not <br />increase the water surface elevation of the base flood more than one foot at any point.” <br /> <br /> Gravel extraction activity does not impede floodwaters because extraction of the aggregate will <br />proceed in a downward manner, and will not create any barrier’s that impede flood flows. Conflicting <br />testimony and photos submitted during the public hearing dispute that assertion. Residents in the <br />(Exhibits 41 & 42) <br />neighborhood submitted photos of flooded streets and provided testimony at the <br />th <br />November 15 2005 Hearing expressing concern that mining of the expansion area would exacerbate <br />flooding in the surrounding neighborhoods, especially the new residential developments built within <br />the impact area. The relationship between groundwater and surface water in a flood and uncertainty of <br />Board/Council Hearing – Ordinance No. PA 1238 Delta Sand & Gravel Expansion <br />Agenda Cover Memo <br />Page 13 of 23 <br /> <br />