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John Wayne Airport <br />The proposed 147,000 square -foot expansion to MainPlace, and the associated approximately <br />300 new employees will not result in any increased demand for service from John Wayne Airport. <br />The addition would not create any new hazards to aircraft approaching or departing the airport. No <br />significant impacts will occur. <br />Public Services and Utilities <br />The Fashion Square EIR assumed the development of a total of over 4 million square feet <br />based on 1.5 million for office, 1.6 million for retail, and over 979,000 square feet for hotel uses. <br />The impacts for natural gas, electricity, telephone, water, sewer, solid waste, police, and fire were <br />all based on that number. In consideration that the current actual developed square footage is 1.1 <br />million square feet, and the proposed expansion is 147,000 square feet, the anticipated requirements <br />for public services and utilities were never met. <br />No impacts were identified for natural gas and electricity although energy conservation <br />measures were recommended (see Energy Section below). <br />Water and sewer improvements that were put in place to accommodate the existing <br />MainPlaee structures should be able to accommodate the proposed expansions. The Orange County <br />Sanitation District completed a major sewer upgrade to the project area with entitlements for Main <br />Street concourse. Any additional modification will be the responsibility of the developer. No <br />significant impact is anticipated. <br />It is not expected that the proposed 147,000 square foot expansion will constrain the <br />capability of telephone, solid waste, police and fire services. The conclusions of the Fashion Square <br />EIR regarding on -site security and fire suppression services should remain a requirement for the <br />proposed expansion. <br />Energy Conservation <br />As with the structure that was proposed in the Fashion Square EIR, the new 147,000 square <br />foot expansion, will need to be designed for optimum energy efficiency in accordance with Energy <br />Conservation Standards for non-residential buildings. The projected natural gas consumption for <br />the 150,000 square foot addition would be 3 million cubic feet/month based on a consumption rate <br />of 20 cubic feet per month per square foot, while the projected electricity consumption would be <br />600,000 Kwhlmouth based on a consumption rate of 4.0 Kwh per month per square foot. These <br />numbers are approximations. <br />Page 24 <br />Proles No. 96-066 <br />75D-415 <br />