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demonstrate that the potential noise impacts can be minimized. OAR 660-023-0180(1)(g) <br />provides that noise conflicts are considered minimized under the rule when the relevant DEQ <br />noise regulations (OAR 340-035-0035) are met. <br /> <br />Daly-Standlee proposes a variety of mitigation measures, starting with limiting the first and <br />second lift mining operations to the time period from 7 o’clock AM to 10 o’clock PM. Daly- <br />Standlee proposes alternative mining procedures at various locations of the proposed expansion <br />area. Those alternative procedures are provided in Tables 7 and 8 of the noise study. The study <br />further concludes that if the proposed alternative procedures are followed during the first and <br />second lifts then no noise mitigation will be required for the third and subsequent lifts. That <br />statement is based upon the fact that due to the depth of operating equipment below grade <br />(surface level), the noise barrier effect provided by the face of the excavation combined with the <br />distance effect will reduce noise to a level in compliance with the DEQ noise restrictions at all <br />locations within the impact area. <br /> <br />Opponents of the application, primarily through testimony of Arthur Noxon, have challenged the <br />Daly-Standlee report on grounds of methodology and conclusions. We find that Daly-Standlee’s <br />rebuttal of the opponents’ arguments is reasonable and provides significant evidence that the <br />DEQ noise level requirements will be met or exceeded through implementation of the proposed <br />mitigation measures. <br /> <br />Both Planning Commissions found the noise conflict could be minimized to a level that meets <br />the state DEQ standard. The Lane County Planning Commission vote was 3-2, with 1 <br />abstention, and the Eugene Planning Commission vote was 3-2. <br /> <br />We find further that the initial construction of the aquaclude, which involves the removal, <br />stockpiling and return of topsoil and overburden to the trench during the surface digging, <br />constitutes a construction project that is exempt from DEQ noise level requirements. We also <br />find that the applicant’s method of construction of the aquaclude, including the creation of <br />temporary berms of the stockpiled topsoil and overburden, will not produce noise levels in <br />excess of DEQ requirements. We find that the remainder of the construction of the aquaclude, <br />because it involves the extraction and use of the aggregate material for aggregate production, <br />does not constitute a construction project. We find further that Daly-Standlee has adequately <br />demonstrated, in its subsequent report placed in to the record of the proceeding during the <br />elected officials’ public hearing, that the remainder of the construction of the aquaclude as <br />proposed by the applicant will not produce noise levels in excess of DEQ requirements. <br /> <br />Daly-Standlee concludes that, with implementation of the provided mitigation measures, the <br />potential noise conflicts associated with mining activity in the proposed expansion area will be <br />minimized consistent with the Goal 5 Rule and, based upon the Daly-Standlee analysis and <br />conclusions, we find accordingly. <br /> <br />Dust <br />The applicant’s expert, Bridgewater, provides evidence that, with the appropriate dust <br />minimization measures, mining of the proposed expansion area would be compliant with Lane <br />Regional Air Pollution Agency (LRAPA) airborne particulate matter emission standards and <br />fugitive dust requirements. We note that, for those types of conflicts addressed by local state or <br />federal standards, to “minimize a conflict” means to ensure conformance to the applicable <br />standard (OAR 660-023-0180(1)(g). Lane County’s airshed is protected and regulated by <br />LRAPA and the applicant currently holds an Air Contaminant Discharge Permit (ACDP) from <br />LRAPA for its existing mining and processing facility on the adjacent Delta property. That <br />ACDP requires that the rock crushing facility of the applicant remain in its current location and <br />also provides a limitation on the amount of rock produced from that facility. <br /> <br />Bridgewater provides the list of proposed dust control measures that includes the requirement <br />that the expansion area shall be included within the LRAPA ACDP for the existing Delta Sand <br />and Gravel Company operation, and that the provisions of that ACDP shall be followed by the <br />Ordinance - 19 <br /> <br />