75C - PH - BRISTOL EIR FROM WARNER TO ST. ANDREW

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EPA in AP42. Fugitive dust generations can be reduced by half through dust suppression techniques such as regular watering during construction ((particularly on unpaved areas used by construction vehicles.) Diesel construction equipment constitutes approximately 90 percent of the heavy construction machinery in use today. It emits on the average about one - half pound of NOx (and smaller amounts of CO and THC) for each gallon of fuel burned (EPA AP -42). Construction equipment emission rates on very active days may total several hundred pounds of contaminants per hour. Construction of the proposed project is expected to begin in mid -1993, although no start-up date has been firmly established. It has been estimated that completion of the project could require an estimated 24 construction vehicles over a 6 month period, with construction activities occurring continuously. Based upon this estimate, Table 13 provides the vehicle emission projections from diesel construction equipment. As shown therein over the construction period, the following could be emitted: 38 pounds of CO, 15 pounds of HC, 178 pounds of NOx, 13 pounds of SOx, and 11 pounds of particulates, daily, Exhaust emissions during the construction activities will vary from day to day as construction activity levels change but should be minimal and dispersed without significant impact on sensitive receptors. The construction crew will generate an insignificant amount of air pollutants along the various site access routes. Primary Pollutant CO THC NOx sox Particulates Table 13 Construction Equipment Emissions' Pounds Per Day 38.1 15.0 178.4 13.1 10.7 ' See Page 4 of the Appendix of the Endo study for assumptions and calculations. Source: Endo Engineering IV -10 75C -145 w R w w w w