ITEM:		CONSENT CALENDAR
3.	RECEIVE AND FILE DISTRICT-WIDE ANNUAL WATER DISTRIBUTION SYSTEM PRODUCTION SUMMARY REPORT FOR WATER YEAR 2023
Meeting Date:			April 15, 2024	Budgeted:	N/A
From:			David Stoldt,	Program/	Hydrologic Monitoring
			General Manager	Line Item No.:	N/A
Prepared By:			Monica Martinez	Cost Estimate:	N/A
General Counsel Approval: N/A
Committee Recommendation: N/A
CEQA Compliance: This action does not constitute a project as defined by the California Environmental Quality Act Guidelines Section 15378.

SUMMARY: Staff has prepared the draft Water Production Summary Report for Water Distribution Systems (WDSs) within the Monterey Peninsula Water Management District (District) for Water Year (WY) 2023. WY 2023 covers the 12-month period from October 1, 2022, through September 30, 2023. Preliminary computations indicate that 9,790 acre-feet (AF) of water was produced by the 151 recognized WDSs in the District during WY 2023. In general, recognized WDSs refer to systems that either: (a) have received a WDS permit, or (b) have been confirmed as a pre-existing system prior to District rules that expanded WDS permitting requirements. The California American Water (Cal-Am) Main System, which is the largest WDS in the District, accounted for 8,995 AF or approximately 91% of the total production reported by WDSs in WY 2023.

RECOMMENDATION: This report is for informational purposes only. The Board should review the draft summary report and provide staff with any comments or questions. Staff will complete and file the final report, incorporating any late revisions, if this item is approved with the Consent Calendar.

BACKGROUND: All owners and operators of WDSs within the District are required to annually submit water production information to the District. In 1980, District Ordinance No. 1 defined a WDS as works within the District used for the collection, storage, transmission, or distribution of water from the source of supply to the connection of a system providing water service to any connection including all water-gathering facilities and water-measuring devices. Therefore, all wells within the District are considered to be WDSs. However, until the adoption of Ordinance No. 96 in 2001, only multiple-parcel WDSs were required to obtain a permit from the District. Other refinements to the Rules and Regulations governing WDSs were added with the adoption of Ordinance No. 105 in 2002; Ordinance No. 106 in 2003; Ordinance No. 118 in 2005; Ordinance No. 122 in 2006; Ordinance 160 in 2014; and Ordinance 175 in 2016. In WY 2023, 13 Confirmation of Exemptions were approved and no new WDSs were established.

Each WDS must report the amount of water produced and where required, the amount of water delivered, in addition to the number of existing and new connections served during the reporting period. The information for WY 2023 is summarized in Exhibit 3-A. The WDSs shown are grouped by source area. This information is also incorporated into the District-Wide Water Production Summary Report, presented as the following item of the Consent Calendar of this packet. For comparative purposes, the Annual WDS Production Summary Report for WY 2023 is provided as Exhibit 3-B.

In WY 2023, 1,656.42 AF that was produced by Cal-Am wells in Carmel Valley was delivered to the Aquifer Storage and Recovery (ASR) project for injection into the Seaside Groundwater Basin. 805.62 AF of ASR project water was recovered from the Seaside Groundwater Basin and delivered for customer service to the Cal-Am. 3,547.99 AF was recovered from the Pure Water Monterey Project for delivery to Cal-Am customer service in WY 2023.

Production figures for three WDSs -- Bishop, Ryan Ranch, and Hidden Hills Units -- are reported separately from the Cal-Am main system, although Cal-Am owns and operates each of these satellite units. The Ryan Ranch Unit was acquired and annexed into the Cal-Am system in November 1989. The Hidden Hills Unit, which formerly reported as the Carmel Valley Mutual Water Company, was acquired and annexed into the Cal-Am system in March 1993. The Bishop Unit, which has been operated by Cal-Am since September 1996, was acquired and annexed into the Cal-Am system in July 1999. Although water production and delivery values for the Bishop, Hidden Hills and Ryan Ranch Units are reported separately from the values for Cal-Am’s Main System in this report, they are included in Cal-Am’s total production in the District-wide Production Summary Report (Exhibit 3-A) as “Cal-Am Wells Within the Water Resources System”. Two amendments to the Cal-Am WDS approved in WY2020, allowed for a permanent interconnection between Cal-Am’s Main System and their Bishop and Ryan Ranch Units, and permitted delivery of water from the Main System to the Bishop/McIntosh subdivision. No water was transferred from the Main System to Ryan Ranch Unit or the Bishop Unit in WY 2023. 127.49 AF of water was transferred to or from the Hidden Hills Unit to the Toro System in WY 2023.

Three systems operated by the Cañada Woods Water Company (CWWC) are tracked separately in this report but are part of an interconnected system. Cañada Woods Alluvial, Cañada Woods Upland and Monterra Ranch WDSs have been merged into the CWWC WDS since WY 2005, although they are still reported separately here to facilitate comparisons from one year to another. Production shown in Exhibit 3-A for Monterra Ranch includes water produced from wells that was sent to the system’s reverse osmosis (RO) desalination plant and un-treated water that was produced for non-potable purposes. Consumption losses for the CWWC include water line flushing and unmetered construction and irrigation uses. Beginning in WY 2010, the system loss calculation was revised by CWWC to present a single composite system loss value.

During WY 2023, the District approved two WDS Permit amendments. The September Ranch system was amended to allow the water pumped from the permitted system to be conveyed to California American Water’s treatment plant and returned to the property in an amount no greater than 90% of the amount pumped in a reporting year to serve 45 Parcels. The second amendment was to set System Limits and add a Residential Use to the Scarlett WDS Permit.

District-wide - Total WDS production within the District for WY 2023 was 9,790 AF. Of this total, the Cal-Am Main System (including the Bishop, Hidden Hills and Ryan Ranch Units) accounted for 91% of the water produced by WDSs within the District. The other 150 systems accounted for the remaining nine percent of production. Total WDS production for WY 2023 is 445 AF (4%) less than the production reported for WY 2022. During WY 2023, Cal-Am’s Main System production decreased by 316.35 AF (3%), while reported non-Cal-Am WDS production decreased by 129 AF (14%), relative to production in WY 2022.

Monterey Peninsula Water Resources System (MPWRS) - Total WDS production from the MPWRS, which includes the Carmel River and its tributaries, the Carmel Valley Alluvial Aquifer, the Seaside Groundwater Basin was 9,440 AF in WY 2023. The comparisons below include production from Cal-Am’s satellite systems (Bishop, Hidden Hills and Ryan Ranch Units) that derive their source of supply from the Laguna Seca Subarea (LSS) of the Seaside Groundwater Basin. The LSS was added to the MPWRS with the adoption of Ordinance No. 135 on September 22, 2008. Total WDS production within the MPWRS decreased by 426 AF (4%) in WY 2023 compared to production in WY 2022. In WY 2023, production by Cal-Am from within the MPWRS (including Bishop, Hidden Hills and Ryan Ranch Units) decreased by 327 AF (3.5%) and the combined production from 23 other active systems within the MPWRS decreased by 109 AF (20%), relative to production reported for WY 2022.

EXHIBITS

3-A Water Production Summary Report for Water Distribution Systems for Water Year 2023

3-B Water Production Summary Report for Water Distribution Systems for Water Year 2022

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