31B - CUP - 1901 NORTH FAIRVIEW ST

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City of Santa Ana Table 3 -28. Historic and Projected Water Demand from the Project Site Environmental Checklist Source: Fuscoe Sewer Report, 2012. Appendix D. As shown on Table 3 -28, the proposed project is anticipated to utilize 25,992 gallons per day (gpd) of water, which is 43.4% less than the amount of water that was used daily by the previous medical uses on the site. Likewise, the anticipated peak flow, which is the amount of water that would need to be transmitted at one time through the infrastructure and to the project site, would also be 43.4% less than what was delivered at peak flow under the previous land uses. Tire school's estimated water use includes the use of current state - mandated water conservation measures, including low- flow toilets, urinals, faucets, and other required water conservation measures. Likewise, all plumbing on site would be installed pursuant to Title 24 requirements to conserve water. Because the proposed project would demand less water than the previous medical uses, the existing water infrastructure serving the project site is adequate and has the capacity to serve the proposed project. Therefore, no improvements to the existing infrastructure are required to service the project, and impacts to water conveyance infrastructure would be less than significant. Furthermore, the project's contribution to water demand within the water service area would be less than significant and the proposed project would not result in the construction or expansion of existing water facilities. Wastewater. As described above under the water discussion, the project vicinity is improved with existing infrastructure, which includes sewer conveyance pipelines. Wastewater from the project site will be transported via an existing 12 -inch city sewer line in North Fairview Street that flows southerly to the intersection of Westminster Avenue and 17th Street. The sewer line turns westerly on Westminster. The wastewater is then to be transported to and treated at OCSD's reclamation plant in Fountain Valley. This wastewater treatment facility is currently undergoing capacity enhancement projects in order to comply with secondary treatment standards required by the EPA under a Federal Consent Decree. The facility currently treats an average of 97 mgd of wastewater and is upgrading to a total design capacity of 180 mgd (OCSD 2010). A Sewer Capacity Report was prepared for the proposed project and attached as Appendix D. The report provides estimated sewer flows from the proposed project by utilizing Los Angeles County generation rates that estimate sewer generation by number of students, bedrooms and by square The Academy Charter High School 3 -104 June 2012 Initial Study /Mitigated Negative Declaration [CF00914.11 I en Generation Factor Size Flow (gpd) Average Flow (gprn) Peak Flow (gpm) Previous Medical Use Medical Office 300 gal /1,000 sf 38,000 sf 11,400 7.92 19.8 Hospital 500 gal /bed 69 beds 34,500 23.96 59.9 Totals 45,900 31.875 79.7 Proposed School Use High School 15 gal /student 450 students 6,750 4.69 11.7 Dorm 2 Bedroom 250 gal /unit 6 units 1,500 1.04 2.6 Dorm 1 Bedroom 200 gal /unit 82 units 16,400 11.39 28.5 Office 200 gal /1,000 sf 6.71 sf 1,342 0.93 2.3 Totals 25,992 18.05 45.1 Source: Fuscoe Sewer Report, 2012. Appendix D. As shown on Table 3 -28, the proposed project is anticipated to utilize 25,992 gallons per day (gpd) of water, which is 43.4% less than the amount of water that was used daily by the previous medical uses on the site. Likewise, the anticipated peak flow, which is the amount of water that would need to be transmitted at one time through the infrastructure and to the project site, would also be 43.4% less than what was delivered at peak flow under the previous land uses. Tire school's estimated water use includes the use of current state - mandated water conservation measures, including low- flow toilets, urinals, faucets, and other required water conservation measures. Likewise, all plumbing on site would be installed pursuant to Title 24 requirements to conserve water. Because the proposed project would demand less water than the previous medical uses, the existing water infrastructure serving the project site is adequate and has the capacity to serve the proposed project. Therefore, no improvements to the existing infrastructure are required to service the project, and impacts to water conveyance infrastructure would be less than significant. Furthermore, the project's contribution to water demand within the water service area would be less than significant and the proposed project would not result in the construction or expansion of existing water facilities. Wastewater. As described above under the water discussion, the project vicinity is improved with existing infrastructure, which includes sewer conveyance pipelines. Wastewater from the project site will be transported via an existing 12 -inch city sewer line in North Fairview Street that flows southerly to the intersection of Westminster Avenue and 17th Street. The sewer line turns westerly on Westminster. The wastewater is then to be transported to and treated at OCSD's reclamation plant in Fountain Valley. This wastewater treatment facility is currently undergoing capacity enhancement projects in order to comply with secondary treatment standards required by the EPA under a Federal Consent Decree. The facility currently treats an average of 97 mgd of wastewater and is upgrading to a total design capacity of 180 mgd (OCSD 2010). A Sewer Capacity Report was prepared for the proposed project and attached as Appendix D. The report provides estimated sewer flows from the proposed project by utilizing Los Angeles County generation rates that estimate sewer generation by number of students, bedrooms and by square The Academy Charter High School 3 -104 June 2012 Initial Study /Mitigated Negative Declaration [CF00914.11 I en