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MAR-08-00 WED 12 24 PM ~ ASSOCIATES FAR N0. 13254810 P. 03 <br />mobile solaces (such as marine vessels and on-shore equipment). The role of these <br />sources in tho regional context and the programs for control will be reiterated in the <br />technical report; and <br />outline the requirements for determining general confomvry with the federal Clean Air <br />Act. The general conformity rule will apply to the projech:. The intent of the rule ar>U be <br />summarized and history will be provided of how the rule has affected projects at other <br />similar facilities around the nation (highlighting other port or airport projects). <br />impacts that wI`!1 be evaluated include the consequences of new enussions on regional and <br />localized air quality. Increased emissions crn,ld be caused by short-term operation of <br />construcxion equipment and long-term operation of increased diesel truck traffic, increased <br />marine vessel traffic, locomotives, employee vehicles, and a variety of stationary land-side <br />equipment, <br />Project Construction Impacts <br />Emissions of ozone precursors (hydrocarbons and nitrogen oxides), particulate hatter, <br />sulfur-containing compounds, and toxic air contaminants will be quantified and <br />categorized according to source type. The construction emissions analysts wi}l account <br />for dredging, transport, and disposal of dredge material, Other land-side improvements <br />and construction worker trips to the port could also cause short-term emissions, <br />Emission quantification will rely on use of the U.S. PPA's AP-42 stationary and mobile <br />source emission factors tables and the MOBILEx emission factor xttodel. Where U.S. <br />EPA data is unavailable for estimating emissions, appropriate emission factors developed <br />by the TNRCX'., or possibly the California Air Resources Hoard (GARB), will be used. <br />Project Operation Impacts <br />Tl~e operational emission analysis will account for the long-distance truck and rail trips <br />that will be associated with increased container transport. Marine vessel emissions <br />occurring within the I-Iouston/Calvcston area may also increase and would be analyzed. <br />C7ther operational emissions could be caused by Increased worker trips to the port and <br />operation of terminal equipment and other facilities. 'I'ermin-II equipment could include <br />diesel-powered lifts and cranes. Islectxically powered equipment will cause indirect <br />emissions at power plants in the area. <br />The clnissions of ozone precursors will be evaluated for consistency with regional <br />attainment strategies. Tlie 'INRGC's budget for cznissions will be comgared to the <br />enussions increases that would be caused by the proposed project. The budget requires a <br />substantial redltotion of enussions from all sources before 2007. While an allowance for <br />growth is implicit in the plans, a workable strategy for achieving the needed reductions has <br />not yet keen identified. Emission rcduaron measures for the proles will be identi[ed. <br />Conformity of the proposed project with the currently-adopted SIP will be evaluated. <br />Construction and operation have the potential to generate emissions that would be over the <br />thresholds for requiring a general conformity analysis. The direct and indirect emissions that <br />Work Plan: Air Quality Technical Report -Page 2 <br />