ITEM:

INFORMATIONAL ITEM/STAFF REPORT

 

21.

 MONTHLY WATER SUPPLY AND CALIFORNIA AMERICAN WATER PRODUCTION REPORT

 

Meeting Date:
December 15, 2025

Budgeted: 

N/A

 

From:

David J. Stoldt,

Program/

N/A

 

General Manager

Line Item No.:

 

 

 

Prepared By:

Jonathan Lear

Cost Estimate:

N/A

 

General Counsel Review:  N/A

Committee Recommendation: N/A

CEQA Compliance: Exempt from environmental review per SWRCB Order Nos. 95-10 and 2016-0016, and the Seaside Basin Groundwater Basin adjudication decision, as amended and Section 15268 of the California Environmental Quality Act (CEQA) Guidelines, as a ministerial project; Exempt from Section 15307, Actions by Regulatory Agencies for Protection of Natural Resources.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exhibit 21-A shows the water supply status for the Monterey Peninsula Water Resources System (MPWRS) as of December 1, 2025.  This system includes the surface water resources in the Carmel River Basin, the groundwater resources in the Carmel Valley Alluvial Aquifer and the Seaside Groundwater Basin.  Exhibit 21-A is for Water Year (WY) 2026 and focuses on three factors: rainfall, runoff, and storage.  The rainfall and Streamflow values are based on measurements in the upper Carmel River Basin at Sleepy Hollow Weir. 

 

Water Supply Status: Rainfall through November 2025 totaled 4.39 inches and brings the cumulative rainfall total for WY 2026 to 5.50 inches, which is 194% of the long-term average through November.  Estimated unimpaired runoff through November totaled 713 acre-feet (AF) and brings the cumulative runoff total for WY 2026 to 1,048 AF, which is 59% of the long-term average through November.  Usable storage for the MRWPRS was 30,480 acre-feet, which is 110% of average through November, and equates to 92% of system capacity. 

 

Production Compliance:  Under State Water Resources Control Board (SWRCB) Cease and Desist Order No. 2016-0016 (CDO), California American Water (Cal-Am) is allowed to produce no more than 3,376 AF of water from the Carmel River in WY 2026.  Through November, using the CDO accounting method, Cal-Am has produced 362 AF from the Carmel River (excluding 0 AF of Table 13 and 14 AF of Mal Paso.)  In addition, under the Seaside Basin Decision, Cal-Am is allowed to produce 1,474 AF of water from the Coastal Subareas and 0 AF from the Laguna Seca Subarea of the Seaside Basin in WY 2026.  Through November, Cal-Am has produced 162 AF from the Seaside Groundwater Basin.  Through November, 0 AF of Carmel River Basin groundwater have been diverted for Seaside Basin injection; 0 AF have been recovered for customer use, 0 AF have been diverted under Table 13 water rights, and 902 AF of Pure Water Monterey recovered.  Cal-Am has produced 1,457 AF for customer use from all sources through November.  Exhibit 21-B shows production by source.  Some of the values in this report may be revised in the future as Cal-Am finalizes their production values and monitoring data. 

 

EXHIBITS

21-A    Water Supply Status: Dec 1, 2025

21-B    Monthly Cal-Am production by source: WY 2026   

 

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