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BLACK &VEATCH <br />Building a world of difference <br />MEMORANDUM <br />City of Santa Ana <br />Water & Wastewater Rate Studies <br />Subject : Development of Water Drought Rates <br />To: Nabil Saba <br />From: Ann Bui, Black & Veatch <br />B &V 175203 <br />B &V File Number A4 <br />Date 12 June 2015 <br />In accordance with your May 14, 2015 request to Black & Veatch, Corporation (Black & Veatch), we <br />hereby submit this Technical Memorandum (TM) describing the work conducted in support of the <br />development of the proposed Drought Rates. This TM serves as an addendum to the 2014 Water <br />Financial Plan, Rate Study /Rehabilitation & Replacement Program Report (2014 Water Study Report) <br />and uses the same methodologies endorsed by the American Water Works Association (AWWA) M- <br />1 Manual. <br />Disclaimer <br />In conducting our study, we reviewed the books, records, agreements, and customer sales and <br />financial projections of the Water Enterprise as we deemed necessary to express our opinion of the <br />operating results and projections. While we consider such books, records, documents, and <br />projections to be reliable, Black & Veatch has not verified the accuracy of these documents. <br />The projections set forth in this technical memorandum below are intended as "forward- looking <br />statements ". In formulating these projections, Black & Veatch has made certain assumptions with <br />respect to conditions, events, and circumstances that may occur in the future. The methodology <br />utilized in performing the analyses follows generally accepted practices for such projections. Such <br />assumptions and methodologies are reasonable and appropriate for the purpose for which they are <br />used. While we believe the assumptions are reasonable and the projection methodology valid, <br />actual results may differ materially from those projected, as influenced by the conditions, events, <br />and circumstances that actually occur. Such factors may include the City's ability to execute the <br />capital improvement program as scheduled and within budget, regional climate and weather <br />conditions affecting the demand for water, and adverse legislative, regulatory or legal decisions <br />(including environmental laws and regulations) affecting the ability of any of the enterprise's ability <br />to manage the system and meet water quality, waste discharge, and / or other regulatory or <br />environmental requirements. <br />Background <br />With the water supply outlook becoming less promising, water wholesaler Metropolitan Water <br />District of Southern California (MWD) has implemented a three -stage allocation to customers like <br />the City of Santa Ana (City). The Water Supply Allocation Plan (WSAP) imposes surcharges on <br />agencies that exceed delivery limits at a WSAP Level 3 Regional Shortage Level. To meet its <br />anticipated water use reduction target associated with that action, the City may in turn need to <br />implement a water allocation for its water customers. <br />Exhibit 1 <br />75E -4 <br />