CA Review GH
Meeting Date: June 20, 2023
To: President and Board Members
From: Scott Chadwick, Executive Manager
Staff Contact: Vicki Quiram, General Manager
[email protected], 442-339-2722
Subject: Approval of the 2023 Annual Water Shortage Assessment Report and Authorization to Submit the Assessment Tabular Report to the California Department of Water Resources
Districts: All
Reco
mmended Action
Adopt a resolution approving the 2023 Annual Water Shortage Assessment Report and authorizing submittal of the assessment tabular report to the California Department of Water Resources on or before July 1, 2023.
Executive Summary
California Water Code Section 10632.1 requires urban water suppliers, including the Carlsbad Municipal Water District, or CMWD, to conduct an annual water supply and demand assessment and submit this data in an annual water shortage assessment. The assessment projects water demand for the period from July 1, 2023, to June 30, 2024.
The purpose of the annual assessment is to determine whether anticipated water supplies will adequately meet anticipated demands under current and dry-year conditions. The assessment is intended as a tool to assist with local and statewide water supply planning to address chronic water shortages.
The CMWD’s annual assessment indicates that the current water supplies would adequately meet the demands in fiscal year 2023-24. To comply with the requirements established in the CMWD’s Water Shortage Contingency Plan, the 2023 annual report must be approved by the CMWD Board of Directors.
Explanation & Analysis
The CMWD Board approved the district’s Water Shortage Contingency Plan concurrent with approval of the 2020 Urban Water Management Plan on June 8, 2021. The water shortage response actions in the contingency plan determine how to address identified water shortages. Suppliers use their water supply and demand assessment procedures from the contingency plan, along with supporting information from their management plan to conduct annual supply and demand assessments to predict potential shortages and submit the results June 20, 2023
Item #10 Page 1 of 10
MUNICI IPAL WATER D IISTRIC'f
Staff Report
in an annual report to the Department of Water Resources.
Information in the report includes anticipated demand based on historical uses, anticipated supplies based on current sources, any identified shortages, triggered shortage response actions, compliance and enforcement actions, and communication actions consistent with the supplier’s contingency plan.
Estimated water demand projections are based on past and current years’ data and include residential, commercial, industrial, institutional, agricultural, irrigation and fire protection uses and expected water losses. Since the Department of Water Resources requires these demand projections to represent a dry year, an additional 7% of water use is added to the demand calculations, in accordance with the approved management plan procedures.
Demand projections also include estimates for expected water distribution system losses based on historical data.
Drought Level 2 and 1 actions were implemented in fiscal year 2022-23 and the region had heavier than normal precipitation. The resulting demand was an estimated 17,425 acre-feet of water.
1 While conservation actions consistent with Drought Level 1 will continue to be encouraged, the total dry weather demand for fiscal year 2023–24 without drought restrictions is estimated at 20,177 acre-feet, approximately 2,700 acre-feet more than last year.
The CMWD’s projected supplies include:
• 13,665 acre-feet potable water purchased from the San Diego County Water Authority • 2,500 acre-feet desalinated seawater purchased from the Water Authority • 4,012 acre-feet of recycled water total from the CMWD’s two recycled water sources, which are the Carlsbad Water Recycling Facility and the Vallecitos Water District
The CMWD’s assessment indicates that sufficient water supplies are available to meet customer demands under the Department of Water Resources’ scenarios for dry-year conditions. While not required to meet anticipated demands, the CMWD will continue to implement demand reduction actions for water shortage Level 1 and implement additional conservation measures as required by the State Water Resources Control Board (i.e., demand reduction actions for water shortage Level 2), which would likely reduce demands further.
The tabular report, which is provided as Attachment A to Exhibit 1, must be submitted to the Department of Water Resources on or before July 1 of each year. This is the second year of the required reporting. The CMWD Board approved the first annual report on June 21, 2022.
Fiscal An
alysis
The 2023 annual report has no financial impact although the projects and policies that are developed from its findings, if any, may have a financial impact. These impacts will be disclosed and brought before the CMWD Board for consideration as the projects or policies are identified or implemented.
1 One acre-foot is approximately 325,900 gallons of water, enough to supply 2.5 average families of four for a year.
June 20, 2023
Item #10 Page 2 of 10
Next Steps
With the CMWD Board’s approval, staff will submit the 2023 report to the Department of Water Resources on or before July 1, 2023.
Environmental Eval uation
The proposed action is exempt from the California Environmental Quality Act under CEQA Guidelines Section 15282(v) and Water Code Section 10652, which applies to the preparation and adoption of an annual water supply and demand assessment in compliance with Section 10632.1 of the California Water Code.
Exhibit
1. CMWD Board resolution
June 20, 2023
Item #10 Page 3 of 10
RESOLUTION NO. 1712
A RESOLUTION OF THE BOARD OF DIRECTORS OF THE CARLSBAD
MUNICIPAL WATER DISTRICT OF THE CITY OF CARLSBAD, CALIFORNIA, APPROVING THE 2023 ANNUAL WATER SHORTAGE ASSESSMENT REPORT
AND AUTHORIZING SUBMITTAL OF THE ASSESSMENT TABULAR REPORT TO
THE CALIFORNIA DEPARTMENT OF WATER RESOURCES ON OR BEFORE JULY 1,2023
WHEREAS, California Water Code 10632.1 requires urban water suppliers to conduct an annual water supply and demand assessment and submit this data in an Annual Water Shortage Assessment Report to the California Department of Water Resources on or before July 1 each year; and WHEREAS, the Carlsbad Municipal Water District, or CMWD, is an urban water supplier subject to this requirement and must submit the results of this annual assessment on or before July 1, 2023; and
WHEREAS, the CMWD Board approved the first year's assessment on June 21, 2022; and WHEREAS, the purpose of this annual water supply and demand assessment is to determine whether anticipated current water supplies will adequately meet anticipated demands under current and dry-year conditions and to assist with local and statewide water supply planning to address chronic water shortages; and
WHEREAS, the annual water supply and demand assessment determined that projected water supplies for fiscal year 2023-24 will meet the anticipated demands under current and dry-year conditions; and
WHEREAS, the City Planner has determined that the Project is statutorily exempt from the proceedings of the California Environmental Quality Act, or CEQA, pursuant to CEQA Guidelines Article 18, Section 15282(v) and Water Code Section 10652, in compliance with Section 10632 of the Water Code.
NOW, THEREFORE, BE IT RESOLVED by the Carlsbad Municipal Water District Board of Directors of the City of Carlsbad, California, as follows:
1. That the above recitations are true and correct.
2. That the Board approves the 2023 Annual Water Shortage Assessment Report attached as Attachment A.
Exhibit 1
June 20, 2023 Item #10 Page 4 of 10
3. That the Executive Manager is hereby authorized and directed to submit the 2023 Annual Water Shortage Assessment Report to the California Department of Water Resources on or before July 1, 2023.
PASSED, APPROVED AND ADOPTED at a Special Meeting of the Board of Directors of the Carlsbad Municipal Water District on the 20th day of June, 2023, by the following vote, to wit:
AYES:
NAYS:
ABSTAIN:
ABSENT:
Blackburn, Bhat-Patel, Acosta, Burkholder, Luna.
None.
None.
None.
KEITH BLACKBURN, President
SHERRY FREISINGER, Secretary
(SEAL)
June 20, 2023 Item #10 Page 5 of 10
Table 1. Annual Assessment Information
Annual Assessment Information
Year Covered By This Shortage Report (Required)
Start: July 1, 2023
End: June 30, 2024
Volume Unit for Reported Supply and Demand:
(Must use the same unit throughout) AF
Supplier's Annual Assessment Planning Cycle (Required) Start Month: Jul y
End Month: June
Data Interval: Monthly (12 data points per year)
Water Supplier's Contact Information (Required)
Water Supplier's Name Carlsbad Municipal Water District Contact Name: Keri Martinez
Contact Title: Utilities Senior Engineer
Street Address: 5950 El Camino Real
ZIP Code: 92008
Phone Number: 442 ‐200‐7376
Email Address: [email protected]
Report Preparer's Contact Information
(if different from above)
Preparer's Organization Name
Preparer's Contact Name:
Phone Number:
Email Address:
Supplier's Water Shortage Contingency Plan
WSCP Title CMWD UWMP 2020 Chapter 8 Water Shortage Contingency Planning WSCP Adoption Date 6/8/2021
Other Annual Assessment Related Activities
Activity Timeline/ Outcomes / Links / Notes
Annual Assessment/ Shortage Report Title: 23‐24 Annual Water Supply and Demand Assessment Staff Report to CMWD Board
Annual Assessment / Shortage Report Approval Date: 6/20/2023 Other Annual Assessment Related Activities:
(Add rows as needed)
Attachment A
June 20, 2023
Item #10 Page 6 of 10
= From prior table
= Auto calculated
Use Type Start Year: 2023 Volumetric Unit Used 2: AF
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total by Water Demand Type
All Demands Potable Demand 1427.9 1477.7 1509.7 1355.7 1314.9 1058.3 980.4 766.4 787.7 747.3 1219.0 1409.8 14055 Other Potable Additional 155.6 161.1 164.6 147.8 143.3 115.4 106.9 83.5 85.9 81.5 132.9 153.7 1532 Losses Estimated water 58.7 60.8 62.1 55.8 54.1 43.5 40.3 31.5 32.4 30.7 50.1 58.0 578 0 0
0 0
0 0
0 1642 1700 1736 1559 1512 1217 1128 881 906 859 1402 1621 16165 Other Nonpotable Recycle Tertiary 530.5 560.7 587.5 479.0 413.5 265.6 171.7 29.1 72.0 30.3 382.6 489.7 4012 0 0
0 0
530.5 560.7 587.5 479.0 413.5 265.6 171.7 29.1 72.0 30.3 382.6 489.7 4012 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total
1,885 1,962 2,018 1,767 1,666 1,278 1,114 773 834 755 1,544 1,829 17,425 1,879 1,997 1,982 1,798 1,426 1,499 1,003 1,079 1,278 1,369 1,544 1,829 18,684 0 0
Table 2: Water Demands1
Projected Water Demands ‐ Volume 3
Total by Month (Non‐Potable)
1Projections are based on best available data at time of submitting the report and actual demand volumes could be different due to many factors. 2Units of measure (AF, CCF, MG) must remain consistent. 3When opting to provide other than monthly volumes (bi‐monthly, quarterly, or annual), please see directions on entering data for Projected Water Demand in the Table Instructions.
Both projected May‐Jun 2024 demands (above) and last year's demand (below)are estimated based on May‐Jun 2022 data, since May‐Jun 2023 data are not available at the time this report was prepared. Two years ago demand (below) data was updated from the previous report to reflect actual demand for May‐Jun 2022 (FY 21‐22).
Total by Month (Potable)
Additional
Description
(as needed)
Level of
Treatment
for Non‐
Potable
Supplies
Drop‐down
list
Drop‐down list
May select each use multiple times
These are the only Use Types that will be
recognized by the WUEdata online
submittal tool
(Add additional rows as needed)
Demands Served by Potable Supplies
Demands Served by Non‐Potable Supplies
Three years ago total demand
Four years ago total demand
Optional (for comparison purposes)
Last year's total demand
Two years ago total demand
June 20, 2023
Item #10 Page 7 of 10
= From prior tables
= Auto calculated
Water Supply Start Year 2023 Volumetric Unit Used 2: AF Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Total by
Water
Supply Type
Purchased/Imported Water SDCWA 1434.0 1491.2 1528.0 1350.9 1303.9 1008.8 919.3 673.1 697.6 651.1 1193.7 1413.1 13665 Desalinated Surfacewater Seawater 208.3 208.3 208.3 208.3 208.3 208.3 208.3 208.3 208.3 208.3 208.3 208.3 2500 0 0
0 0
0 0
0 0
1642 1700 1736 1559 1512 1217 1128 881 906 859 1402 1621 16165 0 Rec
ycled Water 530.5 560.7 587.5 479.0 413.5 265.6 171.7 29.1 72.0 30.3 382.6 489.7 4012
0.0 0.0
0.0 0.0
530 561 587 479 413 266 172 29 72 30 383 490 4012 0
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Total
0 Table 3: Water Supplies1
Projected Water Supplies ‐ Volume 3
Water
Quality
Drop‐down
List
Total Right or
Safe Yield*
(optional)
Additional
Detail on
Water Supply
Drop‐down List
May use each category multiple
times.These are the only water
supply categories that will be
recognized by the WUEdata online
submittal tool
(Add additional rows as needed)
Potable Supplies
Non‐Potable Supplie
eAR Reported Total Water Supplies
Optional (for comparison purposes)
1Projections are based on best available data at time of submitting the report and actual supply volumes could be different due to many factors. 2Units of measure (AF, CCF, MG) must remain consistent. 3When opting to provide other than monthly volumes (bi‐monthly, quarterly, or annual), please see directions on entering data for Projected Water Supplies in the Table Instructions.
Notes: Our wholesale water supplier, the San Diego County Water Authority, has access to additional supplies through its Carryover Storage Program, which includes in‐region surface storage of approximately 70,000 acre‐feet at San Vicente Reservoir. The Water Authority’s policy is to limit use of that water to one‐fifth of the total per year, if needed. The Water Authority also has access to additional supplies from the Metropolitan Water District of Southern California via its preferential right to purchase water.
Under a dry‐year scenario, that volume of water is assumed to be at least 300,000 acre‐feet per year.
Total by Month (Potable
Total by Month (Non‐Potable
June 20, 2023
Item #10 Page 8 of 10
= Auto calculated
= For manual input
Table 4(P): Potable Water Shortage Assessment 1
Start Year: 2023 Volumetric Unit Used 2 : AF
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 3 Total Anticipated Unconstrained Demand 1642.3 1699.5 1736.4 1559.2 1512.3 1217.2 1127.6 881.5 906.0 859.5 1402.0 1621.5 16165 Anticipated Total Water Supply 1642.3 1699.5 1736.4 1559.2 1512.3 1217.2 1127.6 881.5 906.0 859.5 1402.0 1621.5 16165 Surplus/Shortage w/o WSCP Action 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Surplus/Shortage w/o WSCP Action 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% State Standard Shortage Level 0 0000 00000000
Benefit from WSCP: Supply Augmentation 0.0 <‐‐‐‐‐‐
Benefit from WSCP: Demand Reduction 179.0 185.2 189.3 170.0 164.8 132.7 122.9 96.1 98.7 93.7 152.8 176.7 1762 <‐‐‐‐‐‐ Revised Surplus/Shortage with WSCP 179.0 185.2 189.3 170.0 164.8 132.7 122.9 96.1 98.7 93.7 152.8 176.7 1762 % Revised Surplus/Shortage with WSCP 11% 11% 11% 11% 11% 11% 11% 11% 11% 11% 11% 11% 11% = Auto calculated
= For manual input
Table 4(NP): Non‐Potable Water Shortage Assessment
1 Start Year: 2023 Volumetric Unit Used 2 : AF
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 3 Total Anticipated Unconstrained Demand: Non‐Potable 530.5 560.7 587.5 479.0 413.5 265.6 171.7 29.1 72.0 30.3 382.6 489.7 4,012 Anticipated Total Water Supply: Non‐Potable 530.5 560.7 587.5 479.0 413.5 265.6 171.7 29.1 72.0 30.3 382.6 489.7 4,012 Surplus/Shortage w/o WSCP Action: Non‐Potable 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Surplus/Shortage w/o WSCP Action: Non‐Potable 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Benefit from WSCP: Supply Augmentation 0.0 <‐‐‐‐‐‐
Benefit from WSCP: Demand Reduction 0.0 <‐‐‐‐‐‐
Revised Surplus/Shortage with WSCP 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 % Revised Surplus/Shortage with WSCP 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% This row would allow Supplier to include a supply
augmentation action that may ONLY trigger with a
particular 'shortage level' selecte
1 Assessments are based on best available data at time of submitting the report and actual volumes could be different due to many factors. 2 Units of measure (AF, CCF, MG) must remain consistent. 3 When optional monthly volumes aren't provided, verify Tables 2 and 3 use the same columns for data entry and are reflected properly in Table 4 and make sure to use those same columns to enter the benefits from Planned WSCP Actions. Please see directions on the shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier is highly recommended to perform a monthly analysis to more accurately identify the time of shortage. 4 If you enter any WSCP Benefits, then you must enter the corresponding planned Actions into Table 5. = From prior tables
Planned WSCP Actions4
1 Assessments are based on best available data at time of submitting the report and actual volumes could be different due to many factors. 2 Units of measure (AF, CCF, MG) must remain consistent. 3 When optional monthly volumes aren't provided, verify Tables 2 and 3 use the same columns for data entry and are reflected properly in Table 4 and make sure to use those same columns to enter the benefits from Planned WSCP Actions. Please see directions on the shortage balancing exercise in the Table Instructions. If a shortage is projected, the supplier is highly recommended to perform a monthly analysis to more accurately identify the time of shortage. 4 If you enter any WSCP Benefits, then you must enter the corresponding planned Actions into Table 5.
This row would allow Supplier to represent the
likely reduction in water use expected by the
'shortage reponse' that is implemented (e g limited
This row would allow Supplier to include a supply
augmentation action that may ONLY trigger with a
particular 'shortage level' selecte
This row would allow Supplier to represent the
likely reduction in water use expected by the
'shortage reponse' that is implemented (e g limited
= From prior tables
Planned WSCP Actions4
June 20, 2023
Item #10 Page 9 of 10
July 1, 2023 to June 30, 2024
Enter Amount
(Drop‐down
List)
Select % or
Volume Unit
Start Month End Month
0 (No Shortage) Landscape ‐ Limit landscape irrigation to speci Yes 0.9 % July June 0 (No Shortage) CII ‐ Other CII restriction or Yes 0.2 % Jul y June 0 (No Shortage)
Other ‐ Customers must repair leaks,
breaks, and malfunctions in a timely
manner
Yes 0.9 % July June
0 (No Shortage) Expand Public Information Campaign Yes 4.7 % July June 0 (No Shortage) Provide Rebates for Landscape
Irrigation Efficiency
Yes 4.2 % July June
NOTES:
Notes Section to be used onl
for clarifying details, and no
for listing specific actions
Actions must be entred int
table rows above
1If you plan Supply Augmentation Actions then you must enter WSCP Benefits from Supply Augmentation Actions into Table 4. If you plan Demand Reduction Actions then you must enter WSCP Benefits from Demand Reduction Actions into Table 4. 2If an Action is planned to be implemented in multiple non‐contiguous periods of the year, please make separate entries on multiple rows for the same action spanning the different implementation periods.
Table 5: Planned Water Shortage Response Actions
Add additional rows as needed
How much is action going to
reduce the shortage gap?
(Optional)
When is shortage response
action anticipated to be
implemented 2?
Is action
already being
implemented
?
(Y/N)
ACTIONS1: Demand Reduction,
Supply Augmentation, and Other
Actions.
(Drop‐down List)
These are the only categories that will
be accepted by the WUEdata online
submittal tool. Select those that
apply.
Anticipated Shortage
Level
Drop‐down List of
State Standard Levels (1 ‐
6) and Level 0 (No
Shortage)
June 20, 2023
Item #10 Page 10 of 10