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City of Santa Ana Environmental Checklist capabilities. This allows plant operators to anticipate and meet demands, as well as respond rapidly to emergency situations (Metropolitan 201 la, 2011b). The Robert B. Diemer Filtration Plant is undergoing an expansion project which includes a new ozone disinfection system to further improve water quality, improved electrical power facilities, fire and potable water pump station, and oxygen storage facilities (Metropolitan 2011c). There is an existing 12-inch water supply pipeline in South Sullivan Street, which supplies water to the project site. The proposed project includes development of connections to the existing water supply line pursuant to City requirements. As described in the Project Description, Chapter 2, the project site is currently developed with two single family residential structures and several ancillary buildings that are used for the Bat Nha Buddhist Temple facilities. The proposed project would demolish the existing onsite structures that are currently used for religious purposes and would redevelop the site with one large building that would be used for similar religious purposes. The proposed project would add additional capacity to the site and provide for future onsite meditation center activities. A slight increase in the daily number of visitors and a large increase in the number of visitors that would attend the three annual festivities is anticipated as a result of the proposed project. Currently, four people reside on the project site (the Master and his three assistants). Table 3-22 provides a comparison of the existing water demand and the anticipated water demand for the proposed religious facility uses. Table 3-22. Historic and Projected Water Demand from Religious Facility Uses Indoor' Generation Factor: Dutdoor2 Generation Factor: 86 gpd/1,000 gsf 134 gpd/1,000 gsf Size Average Average Average Size Average Average Average (gS03 Flow Flow Flow (gsf) Flow Flow Flow Existing 5,500 473 0.33 0.53 Proposed 8,551 735 0,51 0.82 17,323 2,321 1.6 2.6 Difference 3,051 262 0.18 0.29 17,323 2,321 1.6 2.6 Notes: I Indoor uses include first floor level kitchen and restrooms, and all second floor areas except the deck and hallway as Identified in Table 2-2. It does not include areas for parking or courtyard or landscaped areas. 2 Outdoor uses include Total Landscaped Areas as identified in Table 2.2. a gsf= gross square feet Source: Environ. 2011. CalEE Mod Table 9.1 Water Use Rates for Place of Worship. Using the square footage for the existing and proposed meditation facilities and a generation factor for "place of worship" from the California Emissions Estimator Model (Environ 2011), it is estimated the proposed meditation facilities would utilize approximately 3,056 gpd of water which equates to approximately 2.89 afy. This is approximately 2.36 afy more than the existing conditions. In comparison to the UWMP 2015 projections of 37,120 afy of groundwater supplies and 20,140 afy, of MWD supplies, the proposed meditation facilities would account for less than 0.01% of the total water demand. Although the proposed project would result in an increase in water demand, it is not expected that the proposed project would result in the need for expansion or construction of new water treatment facilities. The proposed project represents less than 0.01% of the City's total water supply projected in 2015. Furthermore, the City projects water demand in the City could remain relatively constant The Bat Nha Buddhist Meditatlon Center 3-91 June 2013 Initial Study/Mitigated Negative Declaration ICF 00215.12 31C-146