METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA AND THE MUNICIPAL WATER DISTRICT OF ORANGE COUNTY

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Worl(sheet 1 — QegLydt! r Plan Section A - Historic Groundwater Production: Section A calculates an Adjusted Baseline that is the basis against which monthly In -Lieu Cyclic Treated Deliveries will be measured. The Adjusted Baseline should reflect the monthly pumping pattern Santa Ana world follow if it were not planning to certify in -lieu deliveries from Metropolitan. The Adjusted Baseline is based on historic groundwater production patterns; however, Santa Ana may adjust these patterns to reflect anticipated system or operational changes during the coming operating year, 6) Lines Al, A2, Sa A3 - FY Groundwater Production: Santa Ana inputs previous three years monthly groundwater' production data beginning one-year prior to the end of the last full operating period. For example, for an agency preparing its FY 2019-20 operating plan, the three years prior would include FY's 201748, 2016-17, and 2015-16. Monthly groundwater production data includes actual pumped groundwater and imported in -lieu deliveries. Q Line A4 - 3-Year Ii'istorical Baseline: Spreadsheet calculates Santa Ana's average monthly groundwater production from the past three years. i Line A5 - Adjustments to Baseline: Santa Ana inputs anticipated increases and/or decreases in total monthly production due to factors such as new production wells coming online, wells taken out of service, and/or other justifiable alterations in production patterns. Line A6 - Adjusted Baseline: Spreadsheet calculates Santa Ana's Adjusted Baseline for the coming operating year, i.e., 3-Year Historical Baseline with Adjustments to Baseline (positive or negative). As indicated above, Lines Al, A2, A3, and A5 are user inputs to be provided by Santa Ana prior to the beginning of the; operating year for review by Metropolitan. This review may require Santa Ana provide Metropolitan with records documenting historic well production and rationale for Adjustments of Baseline. .Section 8 — Planned Annual Operating flan: Section B is Santa Ana's projection of monthly imported water deliveries, groundwater production, and other local supplies that will be used to meet its retail demand. The Section functions as a planning tool for Santa Ana and Metropolitan. It also calculates projected In -Lieu Treated ]deliveries eligible for certification as Cyclic Delivery based on projected groundwater production. Although only an initial estimate, once completed, Section B should remain static throughout the operating year and utilized as the baseline with which to evaluate the year's actual progress. 4 Line B1 - Adjusted Baseline: This line carries forward Santa Ana.'s Adjusted Baseline calculated in Line A6. i Line B2 - Monthly Production -Capability: Santa Ana projects the well capability available for each month of the operating year. Available capability refers to the 911707v1