Water Commodity Delivery Charge Pass-Through Adjustment Calculation Calendar Year 2025
Table 1: Projected Imported Water and Replenishment Assessment Costs Estimated
Rate Calenda r
Description Study (1) Year 2025 Notes
1 Water Supply
2 Supply Allocation, AF 19,773 20,500 2
3 Percent % Groundwater 15% 15% 2
4 Percent % Imported 85% 85% 2
5 Groundwater Production, AF 2,966 3,075 2
6 Imported Water, AF 16,807 17,425 2
7 8 Wholesale Water Supply Unit Costs
9 MWD Imported Water Charge, $/AF $1,209.00 $1,395.00 3 10 Replenishment Assessment, $/AF $624.00 $688.00 4
11 12 Imported Water Costs
13 Calculated MWD Imported Water Charge, $ $3,585,842 $4,289,625 14 MWD Readiness to Serve Charge 541,486 723,941 5
15 MWD Capacity Charge 207,834 226,834 6
16 MWD Connection Charge 492,275 502,931 7
17 MWD Choice Programs 28,734 42,657 8
19 Subtotal, Imported Water Costs $4,856,171 $5,785,988 20 21 Replenishment Assessment/Basin Equity Assessment Costs $10,487,623 $11,988,400 Line
No
10282024 Draft Commodity Delivery Charge Pass-Through Adjustment Calculation Staff Report Appendix
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Water Commodity Delivery Charge Pass-Through Adjustment Calculation Calendar Year 2025
Table 1 Notes:
(1) Source of 2023 Rate Study data: 2023 Rate Study, Table 2-3. (2) Source of 2025 estimate: City staff, 10/11/24
(3) Source: Metropolitan Water District of Orange County Ordinance 2147 Section 1(A), adopted 4/17/2024. (4) Source: OCWD Budget for FY 24/25 transmittal letter to the OCWD Board dated 4/17/24, page 2. OCWD's Replenishment As s
is effective for FY 24/25. The Replenishment Assessment value effective 7/1/25 is not known, so the FY 24/25 value is used for entirety of Calendar Year 2025 in this Commodity Delivery Charge Adjustment calculation. (5) Source: Metropolitan Water District of Orange County Ordinance 2147 Exhibit A, adopted 4/17/2024.
The Readiness to Serve Charge in this calculation is the monthly charge effective between January through June 2025.
The Readiness to Serve Charge for July through December 2025 is not yet known, so the charge effective between January an d
June 2025 is used for the entire Calendar Year 2025 period. (6) Source: Metropolitan Water District of Orange County Ordinance 2147 Exhibit B, adopted 4/17/2024. (7) Source: Metropolitan Water District of Orange County (MWDOC) Ordinance 2147 Section 4, adopted 4/17/2024.
MWDOC Ordinance 2147 specifies a Connection Charge of $14.75 for Calendar Year 2025, which is multiplied by the number of connections to produce the MWD Connection Charge in the table above. The 2023 Rate Study and this Commodity Delivery Charge Adjustment calculation are based on 34,097 connections served by the City's water system. Rate Study calculations are based on a Connection Charge of $14.4375 per customer. (8) Source: Metropolitan Water District of Orange County Ordinance 2147 Exhibit C, adopted 4/17/2024. 10282024 Draft Commodity Delivery Charge Pass-Through Adjustment Calculation Staff Report Appendix
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Water Commodity Delivery Charge Pass-Through Adjustment Calculation Calendar Year 2025
Table 2: Calculation of 2025 Commodity Delivery Charge Pass-Through Adjustment (Effective 1/1/25) Estimated
Rate Calenda r
DESCRIPTION Study Year 2025
1 Total AF/Year Groundwater 2,966 3,075
2 Total AF/Year Imported 16,807 17,425
3 4 Groundwater: Replenishment Assessment and Basin Equity Assessment C o $10,487,623 $11,988,400
5 Imported Water Costs 4,856,171 5,785,988
6 Total Wholesale Water Supply Costs $15,343,794 $17,774,388 7 8 Commodity Delivery Charge Pass-Through Calculation
9 Wholesale Water Supply Costs $15,343,794 $17,774,388
10 Water Supply, Acre-Feet 19,773 20,500
11 Wholesale Water Supply Costs, $/acre-foot $776.00 $867.04 12 13 Water Commodity Delivery Charge Pass-Through Adjustment:
14 Change from Rate Study, $/Acre-Foot $91.04
15 Change from Rate Study, $/ccf $0.20
16 17 Water Commodity Delivery Charge, Effective 1/1/25 CY 2025 18 Tier 1
19 Unadjusted (Ordinance 2948) $3.53
20 Pass Through $0.20
21 Adjusted $3.73
22 Tier 2
23 Unadjusted (Ordinance 2948) $5.67
24 Pass Through $0.20
25 Adjusted $5.87
Line
No
10282024 Draft Commodity Delivery Charge Pass-Through Adjustment Calculation Staff Report Appendix
Copyright 2024 All Rights Reserved
DRAFT
October 28, 2024