ITEM:

INFORMATIONAL ITEM/STAFF REPORT

 

21.

MONTHLY WATER SUPPLY AND CALIFORNIA AMERICAN WATER PRODUCTION REPORT

 

Meeting Date:
April 17, 2023

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 April 1, 2023.  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) 2023 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 March 2023 totaled 7.21 inches and brings the cumulative rainfall total for WY 2023 to 34.46 inches, which is 168% of the long-term average through March.  Estimated unimpaired runoff through March totaled 68,470 acre-feet (AF) and brings the cumulative runoff total for WY 2023 to 173,702 AF, which is 323% of the long-term average through March.  Usable storage for the MRWPRS was 32,370 acre-feet, which is 102% of average through March, and equates to 98% percent 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 2023.  Through March, using the CDO accounting method, Cal-Am has produced 865 AF from the Carmel River (excluding 313 AF of Table 13 and 46 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 2023.  Through March, Cal-Am has produced 523 AF from the Seaside Groundwater Basin.  Through March, 905 AF of Carmel River Basin groundwater have been diverted for Seaside Basin injection; 0 AF have been recovered for customer use, 313 AF have been diverted under Table 13 water rights, and 2,373 AF of Pure Water Monterey recovered.  Cal-Am has produced 4,205 AF for customer use from all sources through March.  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: April 1, 2023

21-B    Monthly Cal-Am production by source: WY 2023

 

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